CN213056999U

CN213056999U - Improved end buckle, flow guide protective sleeve and windshield wiper thereof

Info

Publication number: CN213056999U
Application number: CN202021715797.0U
Authority: CN
Inventors: 王书屋
Original assignee: Xiamen Fuke Car Accessories Co Ltd
Current assignee: Xiamen Fuke Car Accessories Co Ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-27
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses an improved end buckle, a flow guide sheath and a windshield wiper thereof, wherein the end buckle is used for locking an elastic support part of the boneless windshield wiper and two ends of a rubber strip of the windshield wiper, the end buckle forms a first accommodating groove and a second accommodating groove from top to bottom, one end of the first accommodating groove and one end of the second accommodating groove along the length direction are set as a closed end, the other end of the first accommodating groove and the second accommodating groove are set as an inserting end, the first accommodating groove is used for penetrating the elastic support part, and a clamping block for fixing the elastic support part is arranged in the first accommodating groove; the second containing groove is used for penetrating a windshield wiper rubber strip, one side of two outer side edges of the first containing groove or the second containing groove, which is close to the closed end, is respectively provided with a first positioning baffle outwards in a protruding manner, one side of the first positioning baffle, which is close to the insertion end, of the two outer side edges of the first containing groove or the second containing groove forms an L-shaped clamping part A, the L-shaped clamping part A is used for being mutually clamped with a limiting convex block in the flow guide sheath to limit the relative displacement of the flow guide sheath along the length direction of the flow guide sheath relative to the end buckle.

Description

Improved end buckle, flow guide protective sleeve and windshield wiper thereof

Technical Field

The invention relates to the field of automobile accessories, in particular to an improved end buckle, a flow guide sheath and a windshield wiper.

Background

As shown in fig. 1, a conventional frameless wiper comprises a guiding sheath 1a, a bearing contact piece (not shown) for placing a spring piece and a wiper rubber strip, a spring piece, a wiper joint 2a, a wiper rubber strip 3a and two side end buckles 4a, wherein the guiding sheath 1a is arranged on the outer side of the bearing contact piece in a penetrating manner, the wiper joint 2a for connecting with a vehicle wiper arm is arranged in the middle of the bearing contact piece, the end buckles 4a are respectively arranged at two ends of the bearing contact piece and used for locking the guiding sheath 1a, the spring piece and the wiper rubber strip 3a in the bearing contact piece, but by adopting the structure, the end buckles 4a are independently arranged on the outer side of the bearing contact piece, and a partition exists between the end buckles 4a and the guiding sheath 1a, so that the shape of the wiper is lack of simple streamline aesthetic feeling.

Therefore, publication No. CN108657127a discloses an improved diversion sheath, an end buckle, and a windshield wiper thereof, as shown in fig. 2-1 and fig. 2-2, the end buckle 2 'is embedded in the accommodating groove 15' at one side of the closed end of the diversion sheath 1 ', and includes a side 21' extending to both sides along the width direction of the diversion sheath 1 ', a first accommodating groove 22', a second accommodating groove 23 ', and a positioning block 24' for cooperating with the limiting block 16 'of the diversion sheath 1', the first accommodating groove 22 'is disposed above the second accommodating groove 23', and the positioning block 24 'is disposed at the top of the first accommodating groove 22'; the side 21 'is used for sliding into the left and right sliding grooves 14' of the flow guide sheath 1 ', the first accommodating groove 22' is used for accommodating the spring piece, and a clamping block 221 'which is mutually matched with the spring piece in a clamping manner is arranged in the first accommodating groove 22'; the second accommodating groove 23' is used for allowing the windshield wiper rubber strip to penetrate; during assembly, the two side edges 21 'of the end fastener 2' respectively slide into the left and right sliding grooves 14 'of the diversion sheath 1' until the positioning block 24 'of the end fastener 2' abuts against the limiting block 16 'of the diversion sheath 1' to prevent the end fastener 2 'from displacing along the length direction of the diversion sheath 1'. However, in the wiping process of the windshield wiper, only the positioning block 24 'of the end buckle 2' is abutted and matched with the limiting block 16 'of the diversion sheath 1', so that slight relative displacement occurs between the end buckle 2 'and the diversion sheath 1' along the length direction, and the diversion sheath 1 'is easily separated from the end buckle 2', thereby the windshield wiper cannot be continuously used and the driving safety is affected.

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

Disclosure of Invention

A first object of the present invention is to provide an improved end fastener, which can further effectively limit the relative displacement between the end fastener and the flow guide sheath along the length direction.

A second object of the present invention is to provide a flow guide sheath adapted to the end fastener.

A third object of the present invention is to provide a windshield wiper made of the end fastener and the flow guiding sheath.

In order to achieve the first object of the present invention, the present invention discloses an improved end fastener for a member for locking both ends of an elastic support member and a wiper strip of a frameless wiper; the end buckle forms a first accommodating groove and a second accommodating groove from top to bottom, one end of the first accommodating groove and one end of the second accommodating groove along the length direction are set to be a closed end, the other end of the first accommodating groove and the other end of the second accommodating groove are set to be an insertion end, the first accommodating groove is used for penetrating and arranging the elastic supporting component, and a clamping block used for fixing the elastic supporting component is arranged in the first accommodating groove; the second containing groove is used for penetrating a windshield wiper rubber strip, one side of the two outer side edges of the first containing groove or the second containing groove, which is close to the closed end, is respectively provided with a first positioning baffle which is outwards protruded, and the first positioning baffle and one side of the two outer side edges of the first containing groove or the second containing groove, which is close to the insertion end, form an L-shaped clamping part.

In order to realize the second purpose of the utility model, the utility model also discloses a diversion sheath which is matched with the end fastener, the diversion sheath is in a long strip shape, one end of the diversion sheath along the length direction is a closed end, the other end is an insertion end, the bottom of the diversion sheath is opened, the left side and the right side of the inner cavity of the diversion sheath are provided with second chutes which extend along the length direction of the diversion sheath, and the closed end side of the diversion sheath is provided with a containing groove for embedding the end fastener; the inner side wall of the second chute of the diversion sheath is provided with a limiting lug; when the first positioning baffle plates on the two sides of the end fastener respectively slide into the second chutes on the left side and the right side of the flow guide sheath and are embedded in the containing groove of the flow guide sheath, the L-shaped clamping part A of the end fastener and the limiting lug of the flow guide sheath are clamped with each other, so that the flow guide sheath and the end fastener are limited to generate relative displacement along the length direction, and the flow guide sheath and the end fastener are prevented from being separated from each other.

More preferably, the length X of the L-shaped clamping part A on one side of the outer side edge of the first containing groove or the second containing groove is more than or equal to the length Y of the limiting lug in the flow guide sheath.

When the end buckle is embedded in the containing groove of the diversion sheath, the limiting lug of the diversion sheath can be arranged in the L-shaped clamping part of the end buckle, so that the bearing splicing can be mutually abutted to the end buckle to form seamless connection, the first containing groove on the end buckle is seamlessly connected with the third containing groove on the bearing splicing, and the second containing groove on the end buckle is seamlessly connected with the fourth containing groove on the bearing splicing.

More preferably, the L-shaped clamping part a forms a first inclined plane on the end surface of one side of the first positioning baffle plate facing the insertion end, and the distance L between the two first inclined planes along the connecting line between the width directions of the end fastener gradually increases from the closing end to the insertion end; the limiting convex block is provided with a third inclined surface at one side end surface close to the closed end of the diversion sheath, and the third inclined surface is provided with an inclination matched with the first inclined surface of the end buckle. Through the incline direction of injecing the first inclined plane of L type clamping part A for form the inclined plane of an back-off, and water conservancy diversion sheath forms the second inclined plane of phase-match inclination with it, when the spacing lug of water conservancy diversion sheath was put with it each other the card, the third inclined plane of spacing lug back-off in the first inclined plane of end clasp, spacing lug is difficult to break away from the first inclined plane of end clasp L type clamping part A, further ensure that the water conservancy diversion sheath is difficult to produce the displacement along length direction with the end clasp, thereby further reduce the risk that the water conservancy diversion sheath breaks away from the end clasp.

Optionally, the width of the first accommodating groove is greater than the width of the second accommodating groove, a width increment region Z exists in the first accommodating groove compared with the second accommodating groove, and at least the width increment region Z of the first accommodating groove is provided with a first sliding groove for supporting and limiting the elastic supporting component; the bottom surface of the second accommodating groove is provided with a crack extending along the length direction; the inner cavities of the first accommodating groove and the second accommodating groove are communicated with each other, so that the first accommodating groove is a C-shaped groove, and the second accommodating groove is a U-shaped groove; or a partition board is formed between the first accommodating groove and the second accommodating groove, so that the first accommodating groove is a first rectangular groove, and the second accommodating groove is a second rectangular groove; the two outer sides of the first accommodating groove are sequentially provided with a first positioning baffle and a limiting groove from the closed end to the insertion end along the length direction of the first accommodating groove, the first positioning baffle and the limiting groove form an L-shaped clamping part A, the first positioning baffle forms a first inclined plane on one side end face facing the insertion end, and the first inclined plane gradually increases from the closed end to the insertion end along the connecting line distance L between the end fastener in the width direction.

Through set up spacing recess in the outside limit of first storage tank, further increase L type stop portion A and be located first locating baffle towards inserting the length of end face of end one side to spacing complex stability between the spacing lug of end closure and water conservancy diversion sheath is further increased.

Furthermore, a positioning block is convexly arranged on the top of the first accommodating groove upwards; a limiting block is convexly arranged on the inner wall of the containing groove of the flow guide sheath at a position corresponding to the positioning block; when the end fastener is embedded in the containing groove of the flow guide sheath, the limiting block of the flow guide sheath is in limit fit with the positioning block of the end fastener, so that the flow guide sheath is further prevented from being difficult to generate relative displacement along the length direction with the end fastener.

Through above-mentioned structure, make the end buckle along width direction formation left side, well, right card stop to respectively with the mutual buckle cooperation of spacing lug and the stopper of water conservancy diversion sheath, further restriction water conservancy diversion sheath and end buckle along the relative displacement of length direction production, make the water conservancy diversion sheath more difficult and the end buckle break away from each other, further promote the stability that water conservancy diversion sheath and end buckle are connected.

In order to realize the third purpose of the utility model, the utility model also discloses a windshield wiper, which comprises a bearing splicing piece, an elastic supporting part, a windshield wiper adhesive tape, a windshield wiper joint, an end buckle and a flow guide sheath;

the bearing connecting piece comprises second positioning baffles extending to two sides along the width direction of the flow guide sheath, and a third accommodating groove for penetrating the elastic supporting part and a fourth accommodating groove for penetrating the rubber strip of the windshield wiper are sequentially arranged from top to bottom;

the elastic supporting parts are provided with notches at the head end and the tail end;

the windshield wiper joint is arranged in the middle of the bearing connecting piece, the bottom of the windshield wiper joint is used for anchoring the bearing connecting piece and the elastic supporting component, and the top of the windshield wiper joint is used for being connected with the windshield wiper arm;

the end buckle is composed of the end buckle with the L-shaped clamping part A;

the diversion sheath is composed of the diversion sheath with the limiting lug;

the first positioning baffle plates on the two sides of the end fastener respectively slide into the second sliding grooves on the left side and the right side of the flow guide sheath and are embedded in the containing groove of the flow guide sheath, and the L-shaped clamping parts of the end fastener and the limiting lugs of the flow guide sheath are mutually clamped, so that the flow guide sheath and the end fastener are prevented from being relatively displaced along the length direction of the flow guide sheath; two second positioning baffles of the bearing connection piece slide into second sliding grooves on the left side and the right side of the flow guide sheath respectively; the elastic support part is sequentially arranged in the third accommodating groove and the first accommodating groove in a penetrating manner, and a notch on the elastic support part is mutually matched with a clamping block in the first accommodating groove in a buckling manner; the windshield wiper rubber strip is sequentially arranged in the fourth accommodating groove and the second accommodating groove in a penetrating mode.

Adopt above-mentioned structure, the L type that the spacing lug through the water conservancy diversion sheath detained with the end is blocked each other and is put, prevents to produce between water conservancy diversion sheath and the end and follows its length direction relative displacement for the windshield wiper can not cause the shake at the both ends of water conservancy diversion sheath, thereby can not influence the scraping cleanliness factor of windshield wiper. Meanwhile, the diversion sheath is provided with a containing groove which can be internally provided with an end buckle, the end buckle is internally provided with the containing groove, meanwhile, the bearing splicing is also arranged in the sliding groove of the diversion sheath in a penetrating way and is mutually abutted against the end buckle, the diversion sheath is arranged in the end buckle and the bearing splicing, the elastic supporting component is arranged in the third containing groove of the bearing splicing and the first containing groove of the end buckle in a penetrating way, meanwhile, the notch of the elastic supporting component is utilized to be mutually buckled and matched with the clamping block in the first containing groove of the end buckle, the elastic supporting component is used as a supporting framework to enable the end buckle to be mutually fastened and connected with the bearing splicing, the diversion sheath is arranged in the end buckle, the whole shape of the windshield wiper is simpler, the product can attract the.

On this basis, the utility model also discloses a windshield wiper, the top of the first storage tank of end knot is equipped with the locating piece to the epirelief, the storage tank inner wall of water conservancy diversion sheath is equipped with one and is used for preventing to produce the stopper along its length direction relative displacement between water conservancy diversion sheath and the end knot for the position of locating piece is protruding, inlays in the storage tank of water conservancy diversion sheath when the end knot, the stopper of water conservancy diversion sheath and the locating piece of end knot are spacing cooperation each other to further prevent to produce between water conservancy diversion sheath and the end knot and follow its length direction relative displacement.

Drawings

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

fig. 1 is a perspective view of a conventional wiper blade body;

FIG. 2-1 is a perspective view of a prior art end clasp;

FIG. 2-2 is a schematic view of a prior art end clip and deflector sheath assembly;

FIG. 3 is a schematic view of a first embodiment of an end clasp of the present invention;

FIG. 4 is a schematic view of a second embodiment of an end clasp of the present invention;

FIG. 5 is a schematic view of a third embodiment of an end clasp according to the present invention;

fig. 6 is a perspective view of the flow guide sheath of the present invention;

fig. 7 is a horizontal cross-sectional view of the flow guide sheath of the present invention;

fig. 8 is a schematic view of the assembly of the diversion sheath and the end fastener of the present invention;

fig. 9 is a partial cross-sectional view of the flow guide sheath of the present invention when assembled with an end button;

fig. 10 is an exploded perspective view of the wiper of the present invention;

fig. 11 is an assembly view of the wiper of the present invention;

fig. 12 is a partial cross-sectional view of the wiper tip of the present invention.

Description of the figure numbers:

end buckles

1a,1b and 1c, first accommodating

grooves

11a and 11b, first sliding

grooves

111a and 111b, second

accommodating grooves

12a and 12b, a crack 121, a closed end 13, an insertion end 14, a clamping block 15, a through groove 151, a first positioning baffle 16, a first inclined plane 161, a fourth inclined plane 162, an L-shaped clamping part A, a limiting groove 17 and a positioning block 18;

the flow guide sheath 2, the opening 21, the second sliding groove 22, the accommodating groove 23, the limiting bump 24, the second inclined surface 241, the third inclined surface 242 and the limiting block 25;

the bearing sheet 3, the second positioning baffle 31, the third accommodating groove 32 and the fourth accommodating groove 33;

the elastic support part 4, the notch 41;

a windshield wiper rubber strip 5, a windshield wiper joint 6 and a clapboard 10.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present invention.

In the present invention, the terms "first", "second" 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 first embodiment:

as shown in fig. 3, the present invention discloses a first end fastener 1a, the end fastener 1a is used for locking the elastic supporting component 4 of the frameless windshield wiper and the two ends of the rubber strip 5 of the windshield wiper, a first accommodating groove 11a and a second accommodating groove 12a are formed from top to bottom, and one end of the first accommodating groove 11a and one end of the second accommodating groove 12a along the length direction are set as a closed end 13, and the other end is set as an insertion end 14; the width of the first receiving groove 11a is greater than the width of the second receiving groove 12a, and the first receiving groove 11a has a width increment region Z compared with the second receiving groove 12a, and the width increment region Z of the first receiving groove 11a is provided with a first sliding groove 111a, in this embodiment, the first receiving groove 11a is a C-shaped groove with a downward opening, and is used for penetrating the elastic supporting member 4, specifically, a clamping block 15 (as shown in fig. 12) is arranged in the first receiving groove 11a, both ends of the head and the tail of the elastic supporting member 4 are provided with notches 41, the elastic supporting member 4 penetrates the first receiving groove 11a, and is mutually buckled and matched with the clamping block 15 in the first receiving groove 11a through the notches 41, so that the elastic supporting member 4 is fixed in the first receiving groove 11 a; a positioning block 18 is convexly arranged upwards at the top center of the first accommodating groove 11a at one side of the insertion end 14; the two side edges of the first accommodating groove 11a are sequentially provided with a first positioning baffle 16 and a limiting groove 17 from the closed end 13 to the insertion end 14 along the length direction thereof, and the first positioning baffle 16 and one side of the two outer side edges of the first accommodating groove 11a, which is close to the insertion end 14, form an L-shaped clamping part A.

As shown in fig. 6-10, a diversion jacket 2 is disclosed, the diversion jacket 2 is made of a flexible plastic or rubber with an elastic margin, and is strip-shaped, one end of the diversion jacket 2 in the length direction is a closed end, the other end is an insertion end, the bottom of the diversion jacket 2 is opened 21, the left side and the right side of the inner cavity of the diversion jacket 2 are provided with second chutes 22 extending in the length direction of the diversion jacket 2, the inner side walls of the second chutes 22 are provided with limit protrusions 24, the closed end of the diversion jacket 2 is provided with containing grooves 23 embedded with the end fasteners 1a, the inner side walls of the second chutes 22 of the diversion jacket 2 are provided with limit protrusions 24, and the inner walls of the containing grooves 23 of the diversion jacket 2 are convexly provided with limit blocks 25 at positions corresponding to; when the end fastener 1a is embedded in the receiving groove 23 of the diversion sheath 2, the limit projection 24 and the limit block 25 of the diversion sheath 2 are respectively in limit fit with the L-shaped clamping part a and the locating block 18 corresponding to the end fastener 1a, so as to limit the displacement between the diversion sheath 2 and the end fastener 1a along the length direction thereof.

More preferably, as shown in fig. 9, the first positioning baffle 16 of the L-shaped locking portion a of the end buckle 1a forms a first inclined surface 161 on the end surface of one side facing the insertion end 14, the distance between two first inclined surfaces 161 along the connecting line between the width directions of the end buckle 1a gradually increases from the insertion end 13 to the insertion end 14, specifically, the distance between the end points of two first inclined surfaces 161 located near the insertion end 14 along the connecting line between the width directions of the end buckle 1a is L1, the distance between the end points of two first inclined surfaces 161 located near the insertion end 13 along the connecting line between the width directions of the end buckle 1a is L2, and the distance between L2 and L1 gradually increases, that is, the first inclined surfaces 161 form a reverse inclined surface; meanwhile, the length X of the L-shaped clamping part A on the side of the outer side edge of the first containing groove 11a is more than or equal to the length Y of the limiting lug 24 in the flow guide sheath 2.

The third inclined plane 242 is arranged on the side end face of the limiting convex block 24 close to the closed end of the diversion sheath 2, the third inclined plane 242 has an inclination matched with the first inclined plane 161 of the end fastener 1a, when the end fastener 1a is embedded into the containing groove 23 of the diversion sheath 2, the first inclined plane 161 of the L-shaped clamping part A of the end fastener 1a and the third inclined plane 242 of the limiting convex block 24 of the diversion sheath 2 are reversely buckled with each other, and the relative displacement between the diversion sheath 2 and the end fastener 1a along the length direction of the diversion sheath is further limited. Meanwhile, the design is that the limiting bump 24 is arranged in the L-shaped clamping part A in the outer side edge of the first accommodating groove 11a, so that when the assembly is carried out, the bearing connection piece 3 and the end buckle 1a can be abutted against each other to realize seamless connection, and the wiper rubber strip 5 is ensured to be in seamless connection at the joint of the bearing connection piece 3 and the end buckle 1a, so that the wiping effect of the wiper rubber strip 5 cannot be influenced.

Preferably, in order to facilitate the end fastener 1a to slide into the accommodating groove 23 of the diversion sheath 2, a side end surface of the first positioning baffle 16 of the end fastener 1a, which is close to the closed end 13 of the end fastener 1a, has a fourth inclined surface 162, and a side end surface of the limiting protrusion 24 of the diversion sheath 2, which is far from the closed end of the diversion sheath 2, has a second inclined surface 241.

The specific structural features of the end clasp 1a disclosed in the present embodiment relating to the positioning block 18 and the latch block 15 can be referred to the patent document CN108657127A, and will not be described herein again.

As shown in fig. 9 to 12, the present invention further discloses a windshield wiper 100 using the end fastener 1a and the flow guiding sheath 2, which further comprises a bearing connecting piece 3, an elastic supporting component 4, a windshield wiper rubber strip 5 and a windshield wiper joint 6;

as shown in fig. 10, the bearing connecting piece 3 includes second positioning baffles 31 extending to both sides along the width direction of the flow guide sheath 2, and a third accommodating groove 32 for accommodating the elastic supporting member 4 and a fourth accommodating groove 33 for accommodating the wiper rubber strip 5 are sequentially formed from top to bottom, where the third accommodating groove 32 is a C-shaped groove with an upward opening, and the fourth accommodating groove 33 is a C-shaped groove with a downward opening.

The elastic supporting parts 4 are provided with notches at the head end and the tail end, and the notches are preferably unilateral transverse notches, so that the elastic supporting parts are convenient to process and manufacture.

The wiper rubber strip 5 is sequentially inserted into the fourth receiving groove 33 of the bearing connecting piece 3 and the second receiving groove 12a of the end buckle 1 a.

The wiper blade attachment 6 is arranged in the middle of the carrier web 3, with its bottom serving for anchoring the carrier web 3 and the elastic support part 4 and its top serving for connection to a wiper arm (not shown).

The specific assembly mode of the windshield wiper is as follows: firstly, the elastic support part 4 is arranged in a third containing groove 32 on the bearing connecting piece 3 in a penetrating way, then the wiper rubber strip 5 is arranged in a fourth containing groove 33 on the bearing connecting piece 3 in a penetrating way, then the end buckles 1a are arranged at the two ends of the bearing connecting piece 3, so that the elastic support part 4 is inserted into a first containing groove 11a of the end buckle 1a, the wiper rubber strip 5 is arranged in a second containing groove 12a of the end buckle 1a in a penetrating way, at the moment, the notch 41 on the elastic support part 4 is mutually buckled and matched with the clamping block 15 in the first containing groove 11a of the end buckle 1a, so that the end buckle 1a and the elastic support part 4 are mutually locked, the bearing clamping piece 3 is mutually abutted against the end buckle 1a, if the bearing clamping piece 3 is designed in an integrated way, the bottom of the wiper joint 6 needs to be mutually anchored with the bearing connecting piece 3 and the elastic support part 4, at the moment, the bearing clamping piece 3 is provided with a, if the carrying clamping pieces 3 are designed in a sectional manner, namely two carrying clamping pieces 3 are respectively arranged at two sides of the windshield wiper joint 3, the bottom of the windshield wiper joint 3 is directly anchored with the elastic supporting part 4; then, the first positioning baffles 16 on the two sides of the end fastener 1a and the two second positioning baffles 31 of the bearing connecting piece 3 respectively slide into the second chutes 22 on the left and right sides of the diversion sheath 2, so that the end fastener 1a is embedded in the accommodating groove 23 of the diversion sheath 2, the L-shaped clamping part a of the end fastener 1a is in limit fit with the limit bump 24 of the diversion sheath 2, and thus the diversion sheath 2 is prevented from being difficult to generate relative displacement with the end fastener 1a along the length direction, and meanwhile, the limit block 25 of the diversion sheath 2 is in limit fit with the positioning block 18 of the end fastener 1a, so that the diversion sheath 2 is further prevented from being difficult to generate relative displacement with the end fastener 1a along the length direction, and thus the assembly of the whole windshield wiper is completed.

The second embodiment:

as shown in fig. 4, the present invention further discloses a second end fastener 1b, the structure of the end fastener 1b is substantially the same as that of the first embodiment, only a partition board 10 is formed between the first accommodating groove 11b and the second accommodating groove 12b, the partition board 10 makes the first accommodating groove be a first rectangular groove, the second accommodating groove be a second rectangular groove, the flow guide sheath 2 adapted to the end fastener 1b and the assembled wiper are the same as those of the first embodiment, and the installation manner of the wiper is also the same as that of the first embodiment, which is not repeated.

Third embodiment:

as shown in fig. 5, the utility model discloses a third kind of end fastener 1c, its structure is the same basically with the end fastener 1a of the first embodiment, the only difference lies in, in this embodiment, logical groove 151 has been added between the both sides limit of above-mentioned fixture block 15 and the top end face of first storage tank 11a respectively, make fixture block 15 become a cantilever, increase the elasticity of fixture block 15, be convenient for with the mutual joint cooperation of elastic support component 4, be used for with the water conservancy diversion sheath 2 of end fastener 1c adaptation and the wiper after the assembly unanimous with the first embodiment, and the mounting means of wiper is also the same with above-mentioned first embodiment, just not being repeated.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes and modifications may be made by one of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An improved end buckle is used for a component for locking two ends of an elastic supporting part (4) and a wiper rubber strip (5) of a frameless wiper, wherein the end buckle (1a,1b, 1c) forms a first accommodating groove (11a,11b) and a second accommodating groove (12a,12b) from top to bottom, one end of the first accommodating groove (11a,11b) and one end of the second accommodating groove (12a,12b) along the length direction is provided with a closed end (13), the other end of the first accommodating groove is provided with an insertion end (14), the first accommodating groove (11a,11b) is used for penetrating the elastic supporting part (4), and a clamping block (15) for fixing the elastic supporting part (4) is arranged in the first accommodating groove (11a,11 b); the second containing groove (12a,12b) is used for penetrating the rubber strip (5) of the windshield wiper, and is characterized in that: the flow guide sleeve is characterized in that a first positioning baffle (16) is arranged at one side, close to the closed end (13), of two outer side edges of the first accommodating groove (11a,11b) or the second accommodating groove (12a,12b) in an outward protruding mode respectively, one side, close to the insertion end (14), of the two outer side edges of the first positioning baffle (16) and the first accommodating groove (11a, 111b) or the second accommodating groove (12a,12b) in an outward protruding mode forms an L-shaped clamping portion A, the L-shaped clamping portion A is used for being clamped with a limiting protruding block (24) in the flow guide sleeve (2) mutually, and the flow guide sleeve (2) is limited to relatively move along the length direction of the flow guide sleeve relative to the end fastener (1a,1b, 1 c).

2. The improved end clasp of claim 1, wherein: the length X of the L-shaped clamping part A on one side of the outer side edge of the first containing grooves (11a,11b) or the second containing grooves (12a,12b) is more than or equal to the length Y of the limiting lug (24) in the flow guide sheath (2).

3. The improved end clasp of claim 1, wherein: the L-shaped clamping stop part A is provided with a first inclined surface (161) at one side end surface of the first positioning baffle plate (16) facing the insertion end (14), and the distance L of the two first inclined surfaces (161) along the connecting line between the width directions of the end buckles (1a, 1b) gradually increases from the closed end (13) to the insertion end (14).

4. The improved end clasp of claim 1, wherein: the width of the first accommodating grooves (11a,11b) is larger than that of the second accommodating grooves (12a,12b), width increment areas Z exist in the first accommodating grooves (11a,11b) compared with the second accommodating grooves (12a,12b), and first sliding grooves (111a, 111b) for supporting and limiting the elastic supporting component (4) are arranged in the width increment areas Z of the first accommodating grooves (11a,11 b); the bottom surfaces of the second accommodating grooves (12a,12b) are provided with gaps (121) extending along the length direction; the inner cavities of the first accommodating groove (11a) and the second accommodating groove (12a) are communicated with each other, so that the first accommodating groove (11a) is a C-shaped groove, and the second accommodating groove (12a) is a U-shaped groove; or a partition plate (10) is formed between the first accommodating groove (11b) and the second accommodating groove (12b), so that the first accommodating groove (11b) is a first rectangular groove, and the second accommodating groove (12b) is a second rectangular groove.

5. Improved end clasp (1a,1b, 1c) according to claim 4, characterized in that: the first accommodating groove (11a,11b) is provided with a first positioning baffle (16) and a limiting groove (17) in sequence from the closed end (13) to the insertion end (14) along the length direction of the two side edges, and the first positioning baffle (16) and the limiting groove (17) form an L-shaped clamping part A.

6. An improved end clasp (1a,1b, 1c) according to any of claims 1 or 5, wherein: the top of the first containing grooves (11a,11b) is provided with a positioning block (18) in an upward protruding manner.

7. A flow-guiding sheath (2) adapted to the end fastener (1a,1b, 1c) of any one of claims 1 to 5, wherein the flow-guiding sheath (2) is long, one end of the flow-guiding sheath is a closed end, the other end of the flow-guiding sheath is an inserted end, the bottom of the flow-guiding sheath (2) is open (21), the left and right sides of the inner cavity of the flow-guiding sheath are provided with second sliding grooves (22) extending along the length direction of the flow-guiding sheath (2), and the closed end side of the flow-guiding sheath (2) is provided with a containing groove (23) for embedding the end fastener (1a,1b, 1 c); the method is characterized in that: the inside wall of water conservancy diversion sheath (2) second spout (22) is equipped with spacing lug (24), when end fastener (1a,1b, 1c) embedded in water conservancy diversion sheath (2) storage tank (23), spacing lug (24) can with the L type of end fastener (1a,1b, 1c) block portion A spacing cooperation each other to guarantee that water conservancy diversion sheath (2) are difficult to produce relative displacement along length direction with the end fastener.

8. The flow directing sheath (2) of claim 7, wherein: the limiting bump (24) is provided with a second inclined surface (241) on the end surface of one side far away from the closed end of the diversion sheath (2), and is provided with a third inclined surface (242) on the end surface of one side close to the closed end of the diversion sheath (2); the second inclined surface (241) of the diversion jacket (2) is provided with a first positioning baffle (16) which is convenient for the end fasteners (1a,1b, 1c) to slide into the containing groove (23) of the diversion jacket (2) when being abutted against and contacted with the second inclined surface (241); the end face of one side of the two first positioning baffle plates (16) facing the insertion end (14) is provided with a first inclined surface (161), the third inclined surface (242) of the limiting convex block (24) is provided with an inclination matched with the first inclined surface (161) of the end buckle (1a,1b, 1c), and the guide sheath (2) is not easy to generate relative displacement with the end buckle (1a,1b, 1c) along the length direction.

9. The flow directing sheath (2) of claim 7, wherein: when the top of the first containing groove (11a,11b) of the end buckle (1a,1b, 1c) is provided with the positioning block (18) in an upward protruding manner, the inner wall of the containing groove (23) of the diversion sheath (2) is provided with the limiting block (25) in a protruding manner at a position corresponding to the positioning block (18) for preventing the diversion sheath (2) and the end buckle (1a,1b, 1c) from generating relative displacement along the length direction.

10. A windshield wiper, its characterized in that: the windshield wiper comprises a bearing connecting piece (3), an elastic supporting component (4), a windshield wiper rubber strip (5), a windshield wiper joint (6), end buckles (1a,1b, 1c) and a flow guide sheath (2);

the bearing connecting piece (3) comprises second positioning baffle plates (31) extending to two sides along the width direction of the diversion sheath (2), and a third accommodating groove (32) for penetrating the elastic supporting part (4) and a fourth accommodating groove (33) for penetrating the windshield wiper rubber strip (5) are sequentially arranged from top to bottom;

notches (41) are formed in the head end and the tail end of the elastic supporting component (4);

the windshield wiper joint (6) is arranged in the middle of the elastic supporting part (4), the bottom of the windshield wiper joint is mutually anchored with the bearing connecting sheet (3) and the elastic supporting part (4) or directly mutually anchored with the elastic supporting part (4), and the top of the windshield wiper joint is used for being connected with a windshield wiper arm;

the end button (1a,1b, 1c) is constituted by an end button (1a,1b, 1c) according to any of claims 1-5;

the flow-directing sheath (2) is constituted by a flow-directing sheath (2) according to claim 7 or 8;

the first positioning baffle plates (16) on two sides of the end buckles (1a,1b and 1c) respectively slide into the second sliding grooves (22) on the left side and the right side of the diversion sheath (2) and are embedded into the containing grooves (23) of the diversion sheath (2), the L-shaped clamping parts A of the end buckles (1a,1b and 1c) are mutually in limit fit with the limit lugs (24) of the diversion sheath (2), and therefore the diversion sheath (2) and the end buckles (1a,1b and 1c) are prevented from being relatively displaced along the length direction of the diversion sheath; two second positioning baffles (31) of the bearing connecting piece (3) respectively slide into second sliding grooves (22) on the left side and the right side of the flow guide sheath (2); the elastic support part (4) is sequentially arranged in the third accommodating groove (32) and the first accommodating grooves (11a,11b) in a penetrating manner, and a notch (41) on the elastic support part (4) is mutually matched with a clamping block (15) in the first accommodating groove (11) in a clamping manner; the windshield wiper rubber strip (5) is sequentially arranged in the fourth accommodating groove (33) and the second accommodating grooves (12a,12b) in a penetrating mode.

11. The wiper blade of claim 10, wherein: the top of the first accommodating groove (11a,11b) of the end buckle (1a,1b, 1c) is provided with a positioning block (18) in an upward protruding manner, the inner wall of the accommodating groove (23) of the diversion sheath (2) is provided with a limiting block (25) at a position corresponding to the positioning block (18) in a protruding manner for preventing the diversion sheath (2) and the end buckle (1a,1b, 1c) from relatively moving along the length direction thereof, when the end buckle (1a,1b, 1c) is embedded in the accommodating groove (23) of the diversion sheath (2), the limiting block (25) of the diversion sheath (2) and the positioning block (18) of the end buckle (1a,1b, 1c) are mutually in limiting fit, and further preventing the diversion sheath (2) and the end buckle (1a,1b, 1c) from relatively moving along the length direction thereof.