CN218839397U

CN218839397U - Wiper connecting piece

Info

Publication number: CN218839397U
Application number: CN202223233531.4U
Authority: CN
Inventors: 陆耀明
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-11
Anticipated expiration: 2032-12-02

Abstract

The application provides a windscreen wiper connecting piece which comprises a windscreen wiper connecting part and a windscreen wiper arm connecting part; the windscreen wiper connecting part comprises a top plate, a first side plate and a second side plate, wherein the first side plate and the second side plate extend downwards from the edge of the top plate, the first side plate and the second side plate form a fixing cavity for fixing the windscreen wiper, and each of the first side plate and the second side plate comprises a limiting part which protrudes into the fixing cavity and is used for fixing the windscreen wiper placed in the fixing cavity; the first side plate and/or the second side plate comprise a plate body and a fixing piece, a through hole is formed in the plate body and is communicated with the fixing cavity, the fixing piece is movably arranged in the through hole, and the limiting part is arranged on one side, facing the fixing cavity, of the fixing piece and is connected with the fixing piece; the connecting part of the wiper arm is convexly arranged on the surface of one side of the top plate, which deviates from the fixed cavity. The wiper connecting piece is more convenient to install.

Description

Wiper connecting piece

Technical Field

The application relates to the technical field of wipers, in particular to a wiper connecting piece.

Background

The windscreen wiper is an important accessory installed on the windshield and is used for sweeping rain, snow and dust which obstruct the view on the windshield. Therefore, the device plays an important role in driving safety and is an important device of transportation vehicles such as automobiles, trains, electric trains, engineering vehicles and the like.

Most of common windscreen wipers comprise a windscreen wiper blade, a mounting frame and a windscreen wiper arm connecting seat, wherein the windscreen wiper blade is assembled on the mounting frame. During assembly, the mounting frame is firstly assembled on the wiper blade, and then the assembled accessory is installed on the wiper arm connecting seat. The wiper blade structure having such a structure has a complicated mounting process.

In the prior art, there are related improvements to the above-mentioned drawbacks, such as the utility model patent with application No. 202122299771.3, entitled "wiper mount", which provides a wiper mount for directly mounting a wiper blade with a steel bar without using a mounting bracket. Set up four installation departments in this patent set up four recesses that supply the billet embedding on four installation departments to and be equipped with the linking portion that has the lug between two installation departments of homonymy, when concrete application, utilize the lug card to go into the billet notch, thereby make scraping strip, billet can install firmly at the wiper mount pad. However, the steel bar is often rigid in the left-right direction, and if the steel bar is easily inserted into the groove, the groove cannot be set deep, the steel bar may fall off from the groove, and further there is a defect in stability; to enhance the stability, the depth of the groove needs to be increased, and further, a greater force is needed to insert the steel bar into the groove, even though there is a possibility that the steel bar cannot be inserted.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a wiper blade connector, which is used to solve or at least partially solve the above-mentioned drawbacks of the prior art, and the wiper blade connector facilitates and facilitates the connection between the wiper blade and the wiper arm.

Specifically, the method is realized through the following technical scheme:

the application provides a windscreen wiper connecting piece, which is used for connecting a windscreen wiper and a wiper arm, the windscreen wiper connecting piece comprises a windscreen wiper connecting part and a wiper arm connecting part, the windscreen wiper connecting part is used for connecting the windscreen wiper, the wiper arm connecting part is used for connecting the wiper arm,

the windscreen wiper connecting part comprises a top plate, a first side plate and a second side plate, wherein the first side plate and the second side plate extend downwards from the edge of the top plate, the first side plate and the second side plate form a fixing cavity for fixing the windscreen wiper, and both the first side plate and the second side plate comprise limiting parts which protrude in the fixing cavity to fix the windscreen wiper placed in the fixing cavity; the first side plate and/or the second side plate comprises a plate body and a fixing piece, a through hole is formed in the plate body and is communicated with the fixing cavity, the fixing piece is movably arranged in the through hole, and the limiting part is arranged on one side, facing the fixing cavity, of the fixing piece and is connected with the fixing piece;

the connecting part of the wiper arm is convexly arranged on the surface of one side of the top plate, which deviates from the fixed cavity.

Preferably, one of the first side plate and the second side plate is an integrated piece including a fixing piece, and the limiting part is convexly arranged on a plate surface of one side, facing the fixing cavity, of the integrated piece.

Preferably, the middle positions of the first side plate and the second side plate are respectively provided with a positioning block, and the positioning blocks are oppositely arranged and are clamped into the notch of the windscreen wiper.

Preferably, one end of the through hole is provided with an installation column perpendicular to the top plate, and the other end of the through hole is provided with a clamping block; the one end of mounting be provided with the installation department of erection column looks adaptation, the mounting passes through the installation department install in can round behind the erection column is rotatory, the other end of mounting is provided with elastic buckle, the mounting passes through elastic buckle stretches into the through hole with the fixture block joint and with the plate body is fixed.

Preferably, two ends of the through hole are provided with clamping blocks; the two ends of the fixing piece are respectively provided with an elastic buckle, the elastic buckles correspond to the clamping blocks one to one, and the fixing piece is fixed with the plate body by extending into the through holes through the elastic buckles and clamping the clamping blocks.

Preferably, both ends of the through hole are provided with mounting columns perpendicular to the top plate; the both ends of mounting all are provided with the installation department, the installation department with the erection column one-to-one, the mounting passes through the installation department stretches into the through hole install in the erection column and with the plate body is fixed.

Preferably, there is the clearance between the elasticity buckle with the mounting, the one end orientation of elasticity buckle towards fixed chamber the mounting is crooked and connect in the mounting, the other end surpasss to stretch out the edge of mounting just to the side bending formation hook portion that faces away from the mounting, hook portion is in behind the mounting install in the plate body protrusion in the plate face of one side that the plate body deviates from fixed chamber.

Preferably, the thickness of fixture block is less than the thickness of plate body, just the fixture block deviate from the face of one side in fixed chamber with the plate body deviates from the face parallel and level of one side in fixed chamber.

Preferably, the lengths of the first side plate and the second side plate are both greater than the length of the top plate, both ends of the first side plate and the second side plate exceed the edge of the top plate, and two notches are formed at both ends of the first side plate, the second side plate and the top plate.

Preferably, the wiper arm connecting portion includes a pair of connecting plates, a connecting shaft is disposed between the pair of connecting plates, and both ends of the connecting shaft are respectively connected to the pair of connecting plates.

The beneficial effect of this application is:

the application provides a wiper connecting piece fixes the wiper in fixed chamber through protruding two spacing portions of stretching in fixed chamber, and at least one in two spacing portions is in mobilizable mounting, penetrates at the wiper the in-process in fixed chamber, moves about the mounting makes spacing portion on it keep away from fixed chamber to the wiper can easily directly arrange in the fixed chamber, move about again after the wiper is placed the mounting makes spacing portion on it protruding stretch in fixed chamber this wiper is fixed again, also no longer need demolish other parts on the wiper and penetrate from the tip again, consequently, the wiper connecting piece that this application provided makes the connection between wiper and the wiper arm more easy convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a perspective view of a wiper blade connector according to an embodiment of the present disclosure.

Fig. 2 is a top view of a wiper blade attachment shown in a non-operative position in accordance with an exemplary embodiment of the present invention.

Fig. 3 is a top view of a wiper blade attachment in an operational position according to an embodiment of the present disclosure.

Fig. 4 is a front view of a first side plate of a wiper blade connector according to a first embodiment of the present disclosure.

Fig. 5 is a rear view of a first side plate of a wiper blade attachment according to a first embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a first fixing element in a wiper blade connecting element according to an embodiment of the present disclosure.

Fig. 7 is a top view of a wiper blade attachment in a non-operational state according to a second embodiment of the present application.

Fig. 8 is a top view of a wiper blade attachment in an operational state according to a second embodiment of the present disclosure.

Fig. 9 is a front view of a second side plate of a wiper blade attachment according to a second embodiment of the present application.

Fig. 10 is a rear view of a second side plate of a wiper blade attachment according to a second embodiment of the present application.

Fig. 11 is a schematic structural view of a second fixing part in a wiper blade connecting part according to a second embodiment of the present application.

Fig. 12 is a front view of a first side plate of a wiper blade connector according to a third embodiment of the present application.

Fig. 13 is a schematic structural view of a first fixing element in a wiper blade connecting element according to a third embodiment of the present application.

Description of reference numerals:

1-a windscreen wiper connecting part, 11-a top plate, 12-a first side plate, 121-a first plate body, 1211-a first through hole, 1212-an installation column, 1213-a clamping block, 1214-a first installation column, 122-a first fixing part, 1221-an installation part, 1222-an elastic buckle, 1223-a hook part, 1224-a first installation part, 13-a second side plate, 131-a second plate body, 1311-a second through hole, 1312-a second clamping block, 132-a second fixing part, 1322-a second elastic buckle, 1323-a second hook part, 14-a fixing cavity, 15-a first limiting part, 16-a second limiting part and 17-a positioning block;

2-wiper arm connecting part, 21-connecting plate and 22-connecting shaft.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Further, it should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if," as used herein, may be interpreted as "at \8230; \8230when" or "when 8230; \823030when" or "in response to a determination," depending on the context.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

One of the present applications is described in detail below with reference to the accompanying drawings. The features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

referring to fig. 1 to 6, a wiper connector according to the present embodiment is used for connecting a wiper blade and a wiper arm, and includes a wiper connecting portion 1 for connecting the wiper blade and a wiper arm connecting portion 2 for connecting the wiper arm.

In the embodiment, the wiper connecting portion 1 includes a top plate 11, and a first side plate 12 and a second side plate 13 extending downward from an edge of the top plate, wherein the top plate 11, the first side plate 12, and the second side plate 13 form a fixing cavity 14 for fixing the wiper;

the first side plate 12 includes a first plate body 121 and a first fixing member 122, the first plate body 121 is provided with a first through hole 1211, the first through hole 1211 is communicated with the fixing cavity 14, the first fixing member 122 is movably installed in the first through hole 1211, one side of the first fixing member 122 facing the fixing cavity 14 is provided with a first limiting portion 15 connected with the first fixing member 122, and the first limiting portion 15 protrudes into the fixing cavity 14 after the first fixing member 122 is installed on the first plate body 121 so as to fix the wiper blade which has penetrated into the fixing cavity 14;

a second limiting part 16 is arranged on the second side plate 13, and the second limiting part 16 is convexly arranged on the plate surface of one side, facing the fixed cavity 14, of the second side plate 13;

the wiper arm connecting part 2 is convexly arranged on the surface of one side of the top plate 11 departing from the fixed cavity 14.

In this embodiment, the first side plate 12 of the connecting portion 1 of the wiper blade includes a first fixing member 122 movably mounted on the first plate 121, and the position-limiting portion of the first side plate 12 is a first position-limiting portion 15 connected to the first fixing member 122, when the connecting portion 1 of the wiper blade is used to connect the wiper blade, the first fixing member 122 can be moved to make the first position-limiting portion 15 away from the fixing cavity 14, in this state, as shown in fig. 2, there is no obstacle in the fixing cavity 14 that would block the wiper blade from being placed in the fixing cavity 14, so that the wiper blade can be easily and directly placed in the fixing cavity 14, and then the first fixing member 122 is moved again to make the first position-limiting portion 15 protrude in the fixing cavity 14 to fix the wiper blade, as shown in fig. 3; therefore, if the windscreen wiper connecting piece provided by the application is adopted, even if the connecting part of the windscreen wiper and the windscreen wiper connecting piece is made of hard materials which can not be extruded or bent, the connecting part can be directly installed on the windscreen wiper connecting piece easily without difficulty, the end part of the windscreen wiper does not need to be exposed outside in a disassembling mode, and the windscreen wiper connecting piece can be moved to the connecting part of the windscreen wiper and the windscreen wiper connecting piece from the end part.

Referring to fig. 2 and 3, positioning blocks 17 are disposed in the middle of the first side plate 12 and the second side plate 13, and the positioning blocks 17 are disposed oppositely and are used for being clamped into a notch of the wiper.

In this embodiment, the positioning block 17 is convexly arranged toward the center line direction of the fixing cavity 14 and is used for being clamped into the notch of the wiper, so that the mounting position of the wiper connector can be quickly determined according to the notch of the wiper, and the mounting is quicker; in addition, the positioning block 17 is clamped in a notch of the windscreen wiper, so that the windscreen wiper can be transversely limited.

Referring to fig. 4 and 5, a mounting post 1212 perpendicular to the top plate 11 is disposed at one end of the first through hole 1211, and a clamping block 1213 is disposed at the other end of the first through hole 1211; a mounting portion 1221 adapted to the mounting post 1212 is disposed at one end of the first fixing element 122, the first fixing element 122 is mounted on the mounting post 1212 through the mounting portion 1221 and then can rotate around the mounting post 1212, an elastic buckle 1222 is disposed at the other end of the first fixing element 122, and the first fixing element 122 is fixed to the first plate 121 by the elastic buckle 1222 extending into the first through hole 1211 and being clamped with the clamping block 1213.

In this embodiment, the mounting post 1212 is a cylinder, the mounting portion 1221 is a circular ring having an inner circle radius equal to the radius of the cylinder and an opening, and the cylinder can be located in the circular ring through the opening, that is, after the mounting portion 1221 is mounted on the mounting post 1212, the first fixing element 122 can rotate around the mounting post 1212; after the elastic clip 1222 is engaged with the latch 1213, the first fixing element 122 is fixed in the first plate 121 and is not movable, and after the elastic clip 1222 is disengaged from the latch 1213, the first fixing element 122 can rotate around the mounting post 1212.

In other embodiments, the opening direction and/or the opening size may be different from that of the present embodiment, and only the installation between the two is required to be implemented, and the present application does not limit the opening direction and the size.

In order to further ensure the stability of the first side plate 12 when the first through hole 1211 is opened, a plurality of support columns may be further added to the first through hole 1211, and the support columns are not further limited in this application, and only need not collide with the first limiting portion 15 and/or the positioning block 17.

Referring to fig. 6, a gap exists between the elastic buckle 1222 and the first fixing element 122, one end of the elastic buckle 1222 facing the fixing cavity 14 is bent toward the first fixing element 122 and connected to the first fixing element 122, the other end of the elastic buckle 1222 exceeds the edge of the first fixing element 122 and is bent toward a side away from the first fixing element 122 to form a hook 1223, and the hook 1223 protrudes from a plate surface of the first plate 121 facing away from the fixing cavity 14 after the first fixing element 122 is mounted on the first plate 121.

Preferably, the thickness of the latch 1213 is smaller than that of the first plate 121, and the surface of the latch 1213 on the side away from the fixing cavity 14 is flush with the surface of the first plate 121 on the side away from the fixing cavity 14.

In this embodiment, a gap exists between the elastic latch 1222 and the first fixing element 122, and the elastic latch 1222 does not directly contact with the first fixing element 122, so as to ensure the elasticity of the elastic latch 1222 well, and at the same time, in order to further facilitate the elastic latch 1222 to disengage from the fixture block 1213, a hook 1223 is formed by bending on one side of the elastic latch 1222 departing from the first fixing element 122.

Referring to fig. 1 to 3, the lengths of the first side plate 12 and the second side plate 13 are both greater than the length of the top plate 11, both ends of the first side plate 12 and the second side plate 13 extend beyond the edge of the top plate 11, and two notches are formed at both ends of the first side plate 12, the second side plate 13 and the top plate 11.

In this embodiment, considering that the wiper may include a raised protective sleeve, in order to avoid the situation that the wiper connecting piece cannot be mounted on the wiper due to the protective sleeve, two notches 3 are provided at two ends of the wiper connecting piece.

Referring to fig. 1, the wiper arm connecting portion 2 includes a pair of connecting plates 21, a connecting shaft 22 is disposed between the pair of connecting plates 21, and two ends of the connecting shaft 22 are respectively connected to the pair of connecting plates 21.

The second concrete embodiment:

the difference between the first embodiment and the second embodiment is mainly that the structure of the second side plate 13 of the wiper blade connecting portion 1 in the present embodiment is different from that in the first embodiment. Please refer to the first embodiment for the rest of the structure of the present embodiment.

Referring to fig. 7 to 11, in the present embodiment, the second side plate 13 includes a second plate 131 and a second fixing element 132. The second plate 131 is provided with a second through hole 1311, the second through hole 1311 is communicated with the fixing cavity 14, the second fixing element 132 is movably installed in the second through hole 1311, one side of the second fixing element 132 facing the fixing cavity 14 is provided with a second limiting portion 16 connected with the second fixing element 132, and the second limiting portion 16 protrudes into the fixing cavity 14 after the second fixing element 132 is installed on the second plate 131 to fix the wiper blade inserted into the fixing cavity 14.

Referring to fig. 9 to 11, two ends of the second through hole 1311 are respectively provided with a second latch 1312; the two ends of the second fixing member 132 are respectively provided with a second elastic clip 1322, the second elastic clip 1322 corresponds to the second latch 1312 one by one, and the second fixing member 132 is fixed to the second plate 131 by the second elastic clip 1322 extending into the second through hole 1311 to be clipped to the second latch 1312.

In order to further ensure the stability of the second side plate 13 when the second through hole 1311 is opened, a plurality of supporting pillars may be further added in the second through hole 1311, and the supporting pillars are not further limited in this application, and only need not conflict with the second limiting portion 16 and/or the positioning block 17.

Referring to fig. 11, a gap exists between the second elastic clip 1322 and the second fixing element 132, one end of the second elastic clip 1322 facing the fixing cavity 14 is bent toward the second fixing element 132 and connected to the second fixing element 132, the other end of the second elastic clip 1322 extends beyond an edge of the second fixing element 132 and is bent toward a side away from the second fixing element 132 to form a second hook 1323, and the second hook 1323 protrudes from a board surface of the second board 131 facing away from the fixing cavity 14 after the second fixing element 132 is mounted on the second board 131.

Preferably, the thickness of the second latch 1312 is smaller than that of the second plate 131, and a plate surface of a side of the second latch 1312 facing away from the fixing cavity 14 is flush with a plate surface of a side of the second plate 131 facing away from the fixing cavity 14.

In this embodiment, a gap exists between the second elastic buckle 1322 and the second fixing member 132, and the second elastic buckle 1322 is not directly contacted with the second fixing member 132, so that the elasticity of the second elastic buckle 1322 can be ensured well, and meanwhile, in order to further facilitate the second elastic buckle 1322 to be separated from the second block 1312, a second hook portion 1323 is formed by bending the side of the second elastic buckle 1322 departing from the second fixing member 132.

The third concrete example:

the difference between the first fixing member 122 and the first through hole 1211 of the wiper blade connecting portion 1 in the present embodiment is mainly that the first fixing member 122 and the first through hole 1211 are different from the first embodiment in the present embodiment in terms of specific mounting manners. Please refer to the first embodiment for the rest of the structure of the present embodiment.

Referring to fig. 12 and 13, both ends of the first through hole 1211 are provided with first mounting posts 1214 perpendicular to the top plate 11; first mounting portions 1224 are disposed at two ends of the first fixing element 122, the first mounting portions 1224 correspond to the first mounting posts 1214 one to one, and the first fixing element 122 is mounted on the first mounting post 1214 by the first mounting portions 1224 extending into the first through holes 1211 and fixed to the first plate 121.

Further, in order to facilitate the first fixing member 122 to be taken out from the first through hole 1211, a handle may be added to the first fixing member 122, as shown in fig. 13, but the number and specification of the handle are not further limited in the present application.

It should be noted that the above three specific embodiments are only schematic illustrations, and in other embodiments, specific structures of two side plates of a wiper connecting portion of a wiper connecting member may be the same or different, for example, the specific structures of the two side plates may be the same as the structure of the first side plate 12 in the first specific embodiment; the structures of the second side plates 13 in the second embodiment may be the same; the structures of the first side plate 12 in the third embodiment may be the same; the specific structure of one of the side plates may be the same as the structure of the first side plate 12 in the first embodiment, and the specific structure of the other side plate may be the same as the structure of the first side plate 12 in the third embodiment; this application is not intended to be limiting.

It can be known through the above specific description to the embodiment that this application provides a wiper connecting piece fixes the wiper in fixed chamber through protruding two spacing portions of stretching in fixed chamber, and at least one in two spacing portions is in mobilizable mounting, penetrates at the wiper the in-process in fixed chamber, the activity the mounting makes spacing portion on it keep away from fixed chamber to the wiper can easily directly be arranged in fixed chamber, move about again after the wiper is placed the mounting makes spacing portion on it protruding stretch fixed this wiper in the fixed chamber, also no longer need demolish other parts on the wiper and penetrate from the tip again, consequently, the wiper connecting piece that this application provided makes the connection between wiper and the wiper arm more easy convenient.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. A wiper connecting piece is used for connecting a wiper and a wiper arm, and comprises a wiper connecting part and a wiper arm connecting part, wherein the wiper connecting part is used for connecting the wiper, the wiper arm connecting part is used for connecting the wiper arm, and the wiper connecting piece is characterized in that,

the windscreen wiper connecting part comprises a top plate, a first side plate and a second side plate, wherein the first side plate and the second side plate extend downwards from the edge of the top plate, the first side plate and the second side plate form a fixing cavity for fixing the windscreen wiper, and each of the first side plate and the second side plate comprises a limiting part which protrudes into the fixing cavity so as to fix the windscreen wiper placed in the fixing cavity; the first side plate and/or the second side plate comprises a plate body and a fixing piece, a through hole is formed in the plate body and is communicated with the fixing cavity, the fixing piece is movably arranged in the through hole, and the limiting part is arranged on one side, facing the fixing cavity, of the fixing piece and is connected with the fixing piece;

2. The wiper blade attachment of claim 1, wherein one of said first and second side plates is a single piece that does not include a fastener, and said stopper is provided protruding from a surface of said single piece on a side facing said fastening cavity.

3. The wiper connector of claim 1, wherein a positioning block is disposed at a middle position of each of the first side plate and the second side plate, and the positioning blocks are disposed opposite to each other and configured to be engaged with the notches of the wiper.

4. The wiper blade connecting piece according to claim 1, wherein one end of the through hole is provided with a mounting post perpendicular to the top plate, and the other end of the through hole is provided with a fixture block; the one end of mounting be provided with the installation department of erection column looks adaptation, the mounting passes through the installation department install in can round behind the erection column is rotatory, the other end of mounting is provided with elastic buckle, the mounting passes through elastic buckle stretches into the through hole with the fixture block joint and with the plate body is fixed.

5. The wiper blade attachment of claim 1, wherein both ends of said through hole are provided with a latch; the two ends of the fixing piece are respectively provided with an elastic buckle, the elastic buckles correspond to the clamping blocks one to one, and the fixing piece is fixed with the plate body by extending into the through holes through the elastic buckles and clamping the clamping blocks.

6. The wiper blade attachment of claim 1, wherein both ends of said through hole are provided with mounting posts perpendicular to said top plate; the both ends of mounting all are provided with the installation department, the installation department with the erection column one-to-one, the mounting passes through the installation department stretches into the through hole install in the erection column and with the plate body is fixed.

7. The wiper blade connecting piece according to claim 4 or 5, wherein a gap is formed between the elastic buckle and the fixing member, one end of the elastic buckle, which faces the fixing cavity, is bent towards the fixing member and connected to the fixing member, and the other end of the elastic buckle, which extends beyond the edge of the fixing member and is bent away from one side of the fixing member, forms a hook portion, and the hook portion protrudes out of the plate surface of one side of the plate body, which is away from the fixing cavity, after the fixing member is mounted on the plate body.

8. The connecting piece for the windscreen wiper as set forth in claim 4 or 5, wherein the thickness of said locking block is smaller than that of said plate body, and the surface of said locking block facing away from said fixing cavity is flush with the surface of said plate body facing away from said fixing cavity.

9. The wiper blade attachment of claim 1, wherein said first and second side plates each have a length greater than a length of said top plate, and wherein said first and second side plates each have ends that extend beyond an edge of said top plate, said first and second side plates and said top plate defining two notches at each end.

10. The wiper blade attachment of claim 1, wherein the wiper arm attachment portion comprises a pair of attachment plates with a connecting shaft disposed therebetween, the connecting shaft having ends respectively attached to the pair of attachment plates.