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 2021-06-09 设计创作，主要内容包括：一种适配器,其作为雨刷组件与驱动臂之间的连接件；所述的适配器包括两个侧壁和一个顶壁,该两侧壁设有枢轴连接部,所述的适配器内嵌于驱动臂连接部,所述适配器的后端具有一个让位部,其两侧壁由前至后分别设有第一限位部和第二限位部,且在侧壁或顶壁上设有第三限位部；所述的第一限位部能在在锁固状态时,限位槽的下切口边缘卡接,其限制了驱动臂连接部相对于适配器的向上位移；所述的第二限位部为固设在两侧壁的第一限位凸点,藉由该第一限位凸点与限位卡槽的左侧切口边缘相互卡接,从而限制驱动臂连接部相对于适配器的向后及向上的位移；所述的第三限位部用于限制驱动臂连接部相对于适配器的向前位移。(An adapter as a connection between a wiper assembly and a drive arm; the adapter comprises two side walls and a top wall, the two side walls are provided with pivot connection parts, the adapter is embedded in the driving arm connection part, the rear end of the adapter is provided with a relief part, the two side walls of the adapter are respectively provided with a first limiting part and a second limiting part from front to back, and the side walls or the top wall are provided with a third limiting part; when the first limiting part is in a locking state, the lower notch edge of the limiting groove is clamped, and the upward displacement of the driving arm connecting part relative to the adapter is limited; the second limiting part is a first limiting salient point fixedly arranged on two side walls, and the first limiting salient point is mutually clamped with the edge of the left side cut of the limiting clamping groove so as to limit the backward and upward displacement of the connecting part of the driving arm relative to the adapter; the third limiting part is used for limiting the forward displacement of the connecting part of the driving arm relative to the adapter.)

1. An adapter (2 a, 2b, 2c, 2d, 2 e) as a connection between a wiper assembly and a drive arm; the front end of the driving arm is provided with a driving arm connecting part (1), the driving arm connecting part (1) is a U-shaped groove component, two sides of the front end of the driving arm connecting part are provided with limiting grooves (11) with forward openings, and the rear end of each limiting groove (11) is provided with a limiting clamping groove (12) with a downward opening; the adapter (2 a, 2b, 2c, 2d, 2 e) comprises two side walls (22) and a top wall (21), the two side walls (22) are provided with pivot connection parts (23), the adapter (2 a, 2b, 2c, 2d, 2 e) can swing up and down along the length direction of the adapter by using the pivot connection parts (23) as rotation fulcrums through the pivot connection parts (23), the adapter (2 a, 2b, 2c, 2d, 2 e) is embedded in the driving arm connection part (1), and the side walls (22) and the top wall (21) are used as bearing and supporting surfaces of the driving arm connection part (1), and the adapter is characterized in that:

the rear end of the adapters (2 a, 2b, 2c, 2d, 2 e) is provided with a yielding part (27), two side walls (22) of the yielding part are respectively provided with a first limiting part (24 a, 24b, 24 c) and a second limiting part (25) from front to back, and the side walls (22) or the top wall (21) are provided with third limiting parts (28 a, 28b, 28 c); when the front end of the driving arm connecting part (1) upwarps, the abdicating part (27) is convenient for the limiting clamping groove (12) to be clamped and limited with the second limiting part (25);

the first limiting parts (24 a, 24b and 24 c) can be switched between an unlocking state and a locking state, and in the locking state, the first limiting parts (24 a, 24b and 24 c) are clamped with the lower notch edge (111) of the limiting groove (11) and limit the upward displacement of the driving arm connecting part (1) relative to the adapters (2 a, 2b, 2c, 2d and 2 e); when the locking mechanism is in an unlocked state, the first limiting parts (24 a, 24b and 24 c) and the lower notch edge (111) of the limiting groove (11) are retracted, so that the driving arm connecting part (1) is displaced upwards relative to the adapters (2 a, 2b, 2c, 2d and 2 e);

the second limiting part (25) is a first limiting salient point (251) fixedly arranged on two side walls (22), and the first limiting salient point (251) is mutually clamped with a left side cut edge (121) of the limiting clamping groove (12), so that the backward and upward displacement of the driving arm connecting part (1) relative to the adapters (2 a, 2b, 2c, 2d and 2 e) is limited;

the third limiting parts (28 a, 28b, 28 c) are arranged at the front end of the top wall (21) and/or on the two side walls (22) and are positioned at the rear end of the second limiting part (25), and the third limiting parts (28 a, 28b, 28 c) limit the forward displacement of the driving arm connecting part (1) relative to the adapters (2 a, 2b, 2c, 2d, 2 e).

2. The adapter (2 a, 2b, 2c, 2 d) according to claim 1, wherein the third position-limiting portion (28 a) is a second position-limiting protrusion (252) fixed on the two side walls (22), the second position-limiting protrusion (252) is horizontally disposed at the rear end of the first position-limiting protrusion (251), and the position-giving portion (27) disposed at the rear end of the adapter (2 a, 2b, 2c, 2 d) ensures that the second position-limiting protrusion (252) is preferentially caught at the right cut-out edge (122) of the position-limiting catching groove (12) when the front end of the driving arm connecting portion (1) is mounted in an upturned manner.

3. The adapter (2 a, 2b, 2c, 2 d) according to claim 2, wherein the relief (27) is a chamfered surface provided at the rear end of the top wall (21) and having a height gradually decreasing from front to rear, and the second limit projection (252) is provided in a vertically downward projected area of the chamfered surface.

4. The adapter (2 a, 2b, 2c, 2 d) according to claim 2, wherein the first restraining bump (251) and the second restraining bump (252) are interconnected to form a racetrack-type restraining bump (254).

5. The adapter (2 a, 2b, 2c, 2 d) according to claim 2, wherein the side wall (22) is formed with a notch between the first limit projection (251) and the second limit projection (252).

6. The adapter (2 a, 2b, 2c, 2 d) according to claim 5, characterized in that an elastic connection (253) is added between the side walls (22) where the first limit bump (251) and the second limit bump (252) are located.

7. An adapter (2 a, 2b, 2c, 2 d) according to claim 6, wherein said elastic connection (253) is a transversely arranged V-shaped connection.

8. The adapter (2 a, 2b, 2c, 2d, 2 e) according to claim 1, wherein the top wall (21) is provided with a hollow (26) at a position opposite to the pivot connection (23), the hollow (26) providing a space for the adapter (2 a, 2b, 2c, 2d, 2 e) to swing up and down along the length direction thereof with the pivot connection (23) as a rotation fulcrum.

9. The adapter (2 a) according to any one of claims 1 to 8, wherein the first position-limiting portion (24 a) is a side wall hook (2415), the bottom end of the side wall hook (2415) forms a hook surface (2418), and the side wall hook (2415) has a margin elastically deformable toward the inner end of the side wall (22) and is switchable between a locked state and an unlocked state, and in the locked state, the side wall hook (2415) is correspondingly engaged with the undercut edge (111) of the position-limiting groove (11) of the driving arm connecting portion (1) for limiting the position by the hook surface (2418) at the bottom end of the side wall hook (2415).

10. The adapter (2 b, 2c, 2 e) according to any one of claims 1-8, wherein the front end of the adapter (2 b, 2 c) forms an end cap (241), the end cap (241) is formed by at least a top surface (2411) and two side surfaces (2412), the side surfaces (2412) are arranged at intervals outside the side walls (22) of the adapter (2 b, 2c, 2 e), the side surfaces (2412) are provided with a limit block (2419) so as to form a first limit portion (24 b), the bottom end of the limit block (2419) is provided with a limit surface (24192), and the limit surface (24192) is correspondingly clamped and limited with the lower notch edge (111) of the limit groove (11) of the driving arm connecting portion (1).

11. The adapter (2 b, 2c, 2 e) according to claim 10, wherein the position-limiting blocks (2419) on both sides of the side surface (2412) have first inclined surfaces (24191), and the distance between the two first inclined surfaces (24191) is gradually increased from top to bottom.

12. The adapter (2 b, 2c, 2 e) according to claim 10, wherein the inner walls of the two sides (2412) of the end cap (241) respectively form a second inclined plane (2414), and the distance between the two second inclined planes (2414) is gradually increased from top to bottom.

13. The adapter (2 b, 2c, 2 e) according to claim 10, wherein the top surface (2411) of the end cap (241) is at a different height from the top wall (21) and is connected to the top wall by a vertical connecting surface (2413), the side surface (2412) has a step surface (2428) at the front end of the limit stop (2419), and the vertical connecting surface (2413) can be used as a third limit portion (28 b) to abut against the front end surface of the driving arm connecting portion (1) when installed.

14. The adapter (2 b, 2c, 2 e) according to claim 10, wherein the side surface (2412) is provided with a slit (2416) at the front end of the limit block (2419), and a pressing portion (2417) is formed between the slit (2416) and the limit block (2419).

15. The adapter (2 b, 2c, 2 e) according to claim 10, wherein the side wall (22) of the adapter (2 b, 2c, 2 e) extends forward to the inner wall of the top surface (2411) of the end cap (241), and the side wall (22) and the side surface (2411) of the end cap (241) have an overlapping area (3) therebetween, such that the side wall (22) supports the two side surfaces (2411) of the end cap (241).

16. The adapter (2 d) according to any of claims 1-8, wherein the top wall (21) of the adapter (2 d) has a cantilever (211) at the front end, the free end of the cantilever (211) is provided with a limit stop (212), the adapter (2 d) further comprises an end cap (242), the end cap (242) is formed by surrounding at least two side plates (2422) and a top plate (2421), the top plate (2421) has a positioning hole (2423), the two side plates (2422) protrude toward the adapter (2 d) to form an extension section (2426) which forms a first limit portion (24 c); when the lock is in an unlocked state, the end cover (242) is far away from the front end part of the adapter (2 d), and the positioning hole (2423) and the limiting clamping point (212) on the adapter (2 d) are separated from each other; when the end cover is in a locked state, the end cover (242) is close to the front end of the adapter (2 d), the positioning hole (2423) and the limiting clamping point (212) are mutually nested and matched to realize the fixation of the end cover (242) and the adapter (2 d), the extension section (2426) and the limiting groove (11) on the driving arm connecting part (1) are mutually clamped and matched, the top plate (2421) and the top wall (21) of the adapter (2 d) have a height difference, the top plate (2421) can be used as a third limiting part (28 c), and one side end surface (2427) facing the driving arm connecting part (1) can be abutted and limited with the front end surface of the driving arm connecting part (1).

17. The adapter (2 d) according to claim 16, wherein the two side plates (2422) of the end cap (242) have horizontal guiding ribs (2424) on the inner side, each guiding rib (2424) forms a barb (2425) towards the side where the adapter (2 d) is inserted, the two side walls (22) of the adapter (2 d) are provided with grooves (221) at positions corresponding to the guiding ribs (2424), each groove (221) is provided with a limiting latch (222) at the front end of the adapter (2 d), and the end cap (242) can be mounted on the adapter (2 d) by the cooperation of the guiding ribs (2424) and the grooves (221).

18. A wiper blade, characterized in that it comprises an adapter (2 a, 2b, 2c, 2d, 2 e) according to any of claims 1-17, said adapter (2 a, 2b, 2c, 2d, 2 e) being adapted to enable connection of the wiper blade assembly to the drive arm.

Technical Field

The invention relates to the technical field of wipers, in particular to an adapter on a wiper and a wiper with the adapter.

Background

In the patent document CN104925030A, a driving arm is disclosed, which comprises a driving arm connecting part, as shown in fig. 1, which is U-shaped in cross section, and has a first limiting part 5 'with a forward opening on both sides of the front end and a second limiting part 6' with a downward opening on both sides of the rear end, and an adapter adapted to the driving arm connecting part has two kinds of snap structures on both sides, respectively a front snap 3 'and a rear snap 4', the snap 3 'is a semicircular protrusion disposed on both sides of the front end of the adapter, the snap 4' is a cantilever device disposed at the rear end of the adapter, when the driving arm is installed, the driving arm is moved by pressing the snap 4 'until the snap 4' is aligned with the second limiting part 6 ', and when in use, due to a swinging force during wiping, it applies a backward force to the snap 4, which may cause the elastic snap 4' to elastically descend, causing the drive arm and adapter to disengage.

Patent document No. CN211364499U also discloses an adapter for adapting such a driving arm, in which, as shown in fig. 2, the adapter has a pressing piece 23 'for adapting to the second stopper portion 6' of the driving arm, and since the pressing piece 23 'has elasticity, it also causes an elastic drop phenomenon after a long period of use, and the pressing piece 23' is easily separated from the driving arm, and stable connection between the adapter and the driving arm cannot be achieved.

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

Disclosure of Invention

A first object of the present invention is to provide an adapter capable of stably connecting with a driving arm connecting portion, which prevents a wiper driving arm connecting portion from being displaced rearward relative to the adapter.

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

In order to achieve the first object of the present invention, the present invention discloses an adapter as a connecting member between a wiper blade assembly and a driving arm; the front end of the driving arm is provided with a driving arm connecting part, the driving arm connecting part is a U-shaped groove component, two sides of the front end of the driving arm connecting part are provided with limiting grooves with forward openings, and the rear ends of the limiting grooves are provided with limiting clamping grooves with downward openings; the adapter comprises two side walls and a top wall, the two side walls are provided with pivot connection parts, the adapter can swing up and down along the length direction of the adapter by using the pivot connection parts as rotation fulcrums, the adapter is embedded in the connection part of the driving arm, and the side walls and the top wall of the adapter are used as bearing support surfaces of the connection part of the driving arm;

the rear end of the adapter is provided with a yielding part, two side walls of the adapter are respectively provided with a first limiting part and a second limiting part from front to back, and the side wall or the top wall is provided with a third limiting part, so that when the front end of the connecting part of the driving arm is upwarped through the yielding part, the limiting clamping groove is conveniently clamped and limited to be matched with the second limiting part;

the first limiting part can be switched between an unlocking state and a locking state at least, the first limiting part is clamped with the lower incision edge of the limiting groove in the locking state and limits the upward displacement of the driving arm connecting part relative to the adapter, and the first limiting part and the lower incision edge of the limiting groove are mutually abducted in the unlocking state to enable the driving arm connecting part to be displaced upward relative to the adapter; the second limiting part is a first limiting convex point fixedly arranged on two side walls, and the first limiting convex point is mutually clamped with the edge of the left side cut of the limiting clamping groove, so that the backward and upward displacement of the connecting part of the driving arm relative to the adapter is limited;

the third limiting part is arranged at the front end of the top wall and/or on the two side walls and is positioned at the rear end of the second limiting part, and forward displacement of the driving arm connecting part relative to the adapter is limited by the third limiting part.

By adopting the structure, because the rear end of the adapter is provided with the yielding part, when the driving arm connecting part is close to the rear end of the adapter in an upturned mode, the inner top wall of the driving arm connecting part can not interfere with the top wall and the side wall of the rear end of the adapter, the limiting clamping groove can be smoothly clamped and limited and matched with the second limiting part, meanwhile, because the first limiting convex point is arranged on the side wall of the adapter, and the side wall of the adapter is taken as an integral component, the side wall has stronger bending resistance and is not easy to bend inwards, even if the driving arm connecting part drives the windshield wiper to scrape and brush in a reciprocating way through the adapter, the left side notch edge of the driving arm connecting part can apply a backward acting force to the first limiting convex point, the structural strength of the integral side wall of the adapter ensures that the first limiting convex point is not easy to bend inwards and deform, so that the driving arm connecting part is not easy to be separated from the adapter, ensuring the stability of installation between the adapter and the connecting part of the driving arm.

Optionally, the third limiting part is a second limiting bump fixedly arranged on two side walls, the second limiting bump is horizontally arranged at the rear end of the first limiting bump, and the abdicating part arranged at the rear end of the adapter ensures that the second limiting bump is preferentially clamped on the right incision edge of the limiting clamping groove when the front end of the driving arm connecting part is installed in an upturned mode.

Further, let the position portion for setting up the scarf at roof rear end, this scarf highly gradually hangs down from preceding back, the spacing bump setting of second in the vertical downward projection region of scarf. When can realize the above perk mode of actuating arm connecting portion and install with the adapter through this scarf, the required design of stepping down of adapter can make again this part of stepping down better with the whole molding looks adaptation of adapter, makes the product have better industrial design aesthetic feeling.

By adopting the structure, because the inclined plane is additionally arranged and the second limit salient point is arranged in the vertical projection area of the inclined plane, when in installation, the front end of the connecting part of the driving arm only needs to be upwarped, the second limit salient point of the adapter can be conveniently and preferentially clamped at the right side incision edge of the limit clamping groove, then the connecting part of the driving arm takes the second limit salient point as a rotating fulcrum, and the front end of the connecting part of the driving arm is downwards overturned, so that the first limit part and the first limit salient point of the adapter are respectively correspondingly clamped at the lower incision edge of the limit groove and the left side incision edge of the limit clamping groove, and the displacement of the connecting part of the driving arm relative to the adapter in the length direction is limited by the matching of the first limit salient point and the second limit salient point on the adapter and the limit clamping groove on the connecting part of the driving arm, because the distance between the two sides far away from the first limit salient point and the second limit salient point is larger than the opening width of the limit clamping groove on the connecting part of the driving arm, the matching between the limiting clamping groove and the first limiting salient point and the second limiting salient point also limits the upward displacement of the rear end of the connecting part of the driving arm relative to the adapter; meanwhile, the upward displacement of the front end of the connecting part of the driving arm relative to the adapter is limited through the matching of the first limiting part and the limiting groove of the connecting part of the driving arm.

Optionally, the first limit bump and the second limit bump are connected with each other to form a runway-type limit bump.

Optionally, the side wall forms a notch between the first limit bump and the second limit bump, and the elastic allowance between the first limit bump and the second limit bump along the length direction of the adapter is increased by additionally arranging the notch, so that the limit clamping groove of the connecting portion of the driving arm can clamp the first limit bump and the second limit bump into the notch.

Furthermore, an elastic connecting piece is additionally arranged between the side wall where the first limit salient point and the second limit salient point are arranged.

Furthermore, the elastic connecting piece is a V-shaped connecting piece which is transversely arranged.

Elastic allowance along the length direction of the adapter between the first limit convex point and the second limit convex point can be better adjusted by adding the elastic connecting piece, groove-lacking bending deformation is effectively avoided, and the service life of the adapter is prolonged.

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

The adapter is used for solving the problem that the adapter is not suitable for the traditional adapter, and the adapter is suitable for the adapter in the prior art.

Adopt above-mentioned structure, through the undercut edge joint that will have elastic side wall hook and spacing groove for the upward displacement of restriction actuating arm connecting portion for the adapter.

The adapter is used for solving the problem that the adapter is not suitable for the first limiting part, and is characterized in that the front end of the adapter is provided with an end cap which is at least formed by encircling a top surface and two side surfaces, the side surfaces are arranged on the outer side of the side wall of the adapter at intervals, a limiting clamping block is arranged on each side surface, so that the side surface becomes the first limiting part, the bottom end of each limiting clamping block is provided with a limiting surface, and the limiting surface is correspondingly clamped and limited with the lower notch edge of a limiting groove of the connecting part of the driving arm.

Furthermore, the limiting clamping blocks on the two sides of the side face are provided with first inclined planes, the distance between the two first inclined planes is gradually wide from top to bottom, and the first inclined planes are used for enabling the two sides of the connecting part of the driving arm to better slide downwards to the bottom ends of the limiting clamping blocks.

Further, the lower part forms a second inclined plane respectively in the middle part of end cap both sides face inner wall, two top-down distance between the second inclined plane is gradually wide, through the setting on second inclined plane, make interval top-down between end cap both sides face to the lateral wall progressively increase, increase the inside angle scope of bending deformation in end cap both sides face bottom, thereby can make the distance between lateral wall to the end cap both sides face reduce as far as possible, can conveniently increase the wall thickness of lateral wall like this, increase the structural strength of this adapter, also be convenient for simultaneously have more sufficient space to carry out structural design in lateral wall inside, such as pivot connection portion's setting etc..

Furthermore, there is the difference in height between the top surface of end cap and the roof, and it links to each other through a vertical connection face, the side on lie in spacing fixture block's front end have a step face, this vertical connection face can support when installing with the preceding terminal surface of actuating arm connecting portion as the spacing portion of third and support, support through the preceding terminal surface of vertical connection face with actuating arm connecting portion and support, it can restrict actuating arm connecting portion and shift in length direction.

Through the structure, through being connected the face setting as the spacing portion of third with vertical connection, it both can with the cooperation of the spacing bump of second, further limit the displacement forward of actuating arm connecting portion for the adapter, also can be used for limiting the displacement forward of actuating arm connecting portion for the adapter as the spacing portion of third alone, make actuating arm connecting portion only need aim at spacing draw-in groove with first spacing bump when the installation, use first spacing bump as rotatory fulcrum, then with the rotatory installation downwards of actuating arm front end, can install actuating arm connecting portion to the adapter, the mounting means is simple.

Furthermore, the side is provided with a crack at the front end of the limiting clamping block, and a pressing part is formed between the crack and the limiting clamping block.

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

The adapter is characterized in that a cantilever is arranged at the front end of the top wall of the adapter, a limit clamping point is arranged at the free end of the cantilever, the adapter also comprises an end cover, the end cover is at least formed by two side plates and a top plate in a surrounding mode, a positioning hole is formed in the top plate, the two side plates protrude towards the adapter, an extending section is formed in the two side plates, the extending section forms a first limit part, the position, far away from the front end part of the adapter, of the end cover is located at the position, away from the limit clamping point on the adapter, of the positioning hole and the limit clamping point on the adapter are mutually separated, the position, close to the front end part of the adapter, of the end cover is located at the position, close to the front end part of the adapter, of the positioning hole and the limit clamping point are mutually nested and matched to fix the end cover and the adapter, the extending section and the limit groove on the connecting part of the driving arm are mutually clamped and matched, and a height difference exists between the top plate and the top wall of the adapter, the top plate can be used as a third limiting part to be abutted against and limited by the front end surface of the connecting part of the driving arm.

Furthermore, horizontal guide protruding strips are respectively arranged on the inner sides of the two side plates of the end cover, a barb is formed at one end, inserted towards the adapter, of each guide protruding strip, grooves are formed in the positions, corresponding to the guide protruding strips, of the two side walls of the adapter, a limiting block is arranged at the front end, located at the adapter, of each groove, and the end cover can be installed on the adapter through the matching of the guide protruding strips and the grooves.

Further, the stiff end setting of cantilever at adapter roof front end, just spacing stuck point be equipped with a direction inclined plane in the one side towards the stiff end.

Adopt above-mentioned structure, through on installing the end cover to the adapter, the spacing groove cooperation on extension section on the end cover and the actuating arm connecting portion to restricted actuating arm connecting portion and leaned on for the displacement that makes progress of adapter, the roof supports with the preceding terminal surface of actuating arm connecting portion, has restricted actuating arm connecting portion and has leaned on for the ascending displacement of adapter in the forward direction.

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

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

Drawings

FIG. 1 is a schematic view of a drive arm connection and adapter disclosed in publication No. CN 104925030A;

FIG. 2 is a schematic view of a drive arm connection and adapter disclosed in publication No. CN 211364499U;

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

FIGS. 4 and 5 are schematic views of an adapter according to a second embodiment of the present invention;

FIG. 6 is a cross-sectional view of a second embodiment of the present invention;

figure 7 is an exploded view of an adapter and drive arm connection portion according to a second embodiment of the present invention;

figure 8 is a combination view of an adapter and drive arm connection portion according to a second embodiment of the present invention;

FIG. 9 is a schematic view of an adapter according to a third embodiment of the present invention;

FIG. 10 is a schematic bottom view of an adapter according to a third embodiment of the present invention;

figure 11 is a combination view of an adapter and drive arm connection portion according to a third embodiment of the present invention;

FIG. 12 is an exploded view of an end cap and adapter according to a fourth embodiment of the present invention;

FIG. 13 is a schematic view of an end cap according to a fourth embodiment of the present invention;

FIG. 14 is a combination end cap and adapter of a fourth embodiment of the present invention;

figure 15 is a combination view of an adapter and drive arm connection portion according to a fourth embodiment of the present invention;

FIG. 16 is a schematic view of the installation procedure of the third embodiment of the present invention;

FIG. 17 is a schematic view of an adapter of a fifth embodiment of the present invention;

fig. 18 is a schematic view of the installation procedure of the fifth embodiment of the present invention.

Reference numerals

Left side edge 121 of lower notch edge 111 of limiting groove 12 of limiting groove 11 of driving arm connecting part 1

Right side cut edge 122

Hollow 26 of pivotal connection 23 of side wall 22 of top wall 21 of adapters 2a, 2b, 2c, 2d, 2e

The relief portion 27, the first stopper portions 24a, 24b, 24c, and the second stopper portion 25

Third position-limiting portions 28a, 28b, 28c end cap 241 top surface 2411 side surface 2412 vertical connection surface 2413 (28 b) side surface hook 2415 seam 2416 pressing portion 2417 hook surface 2418 position-limiting fixture block 2419 first inclined surface 24191 position-limiting surface 24192 second inclined surface 2414 end cap 242 top plate 2421 (28 c) side plate 2422 positioning hole 2423 guide projection 2424 barb 2425 cantilever 211 position-limiting fixture point 212 groove 221 position-limiting block 222 extension section 2426 first position-limiting convex point 251 second position-limiting convex point 252 (28 a) elastic connection 253

The limiting bump 254 positions the front end surface 2427 of the overlapping area 3 and the step surface 2428 of the reference surface 223.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Before describing the specific embodiment of the present invention, a brief description is first given to the driving arm connecting portion 1 adapted to the present invention, and the specific structure of the driving arm connecting portion 1 can refer to the patent document with the publication number CN104925030A in detail, and is not repeated in detail here, so that only a part of the structural features of the driving arm connecting portion 1 will be described briefly to facilitate the subsequent description, as shown in fig. 7, the driving arm connecting portion 1 is a U-shaped groove member, the front ends of the two side walls 22 thereof are respectively provided with a limiting groove 11 with a forward opening, and the rear end of the limiting groove 11 is provided with a limiting clamping groove 12 with a downward opening.

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

First embodiment of the adapter:

as shown in fig. 3, the present invention discloses an adapter 2a as a connecting member between a wiper assembly and a driving arm, wherein the adapter 2a includes two side walls 22 and a top wall 21, a pivot connection portion 23 is disposed in the two side walls 22, the adapter 2a can swing up and down along the length direction thereof by using the pivot connection portion 23 as a rotation fulcrum, preferably, a hollow portion 26 is disposed on the top wall 21 at a position opposite to the pivot connection portion 23, and the hollow portion 26 provides a space for the pivot connection portion 23 to swing up and down along the length direction thereof by using the pivot connection portion 23 as a rotation fulcrum.

The adapter 2a is embedded in the driving arm connecting portion 1, the side wall 22 and the top wall 21 of the adapter are used as bearing and supporting surfaces of the driving arm connecting portion 1, and a plurality of positioning reference surfaces 223 are arranged on the outer end surfaces of the two side walls 22 along the length direction of the side walls and are in transition fit with the two inner sides of the driving arm connecting portion 1. Only the machining precision of the positioning reference surface 223 needs to be guaranteed at the moment, the adapter 2a and the adapter 2a of the driving arm connecting portion 1 can be achieved, the machining difficulty of the adapter 2a is greatly reduced, and finally the manufacturing cost of an enterprise is reduced.

The front end of the adapter 2a is provided with a first limiting part 24a, when the adapter 2a is embedded in the driving arm connecting part 1, the driving arm connecting part 1 is limited by the first limiting part 24a to move upwards, the first limiting part 24a can be switched between an unlocking state and a locking state, when in the unlocking state, the first limiting part 24a and the lower notch edge 111 of the limiting groove 11 are retracted, when in the locking state, the first limiting part 24a and the lower notch edge 111 of the limiting groove 11 are clamped, and the driving arm connecting part 1 is limited from moving upwards relative to the adapter 2 a. In the embodiment, the first position-limiting portion 24a is formed by disposing an elastic cantilever 224 on the two side walls 22 of the adaptor 2a at a position corresponding to the position of the position-limiting groove 11 of the driving arm connecting portion 1, the elastic cantilever 224 can elastically deform toward the inside of the adaptor, the free end of the elastic cantilever 224 is provided with a protruding hook portion which is a side wall hook 2415, the bottom end of the side wall hook 2415 forms a hook surface 2418, when the adaptor 2a is embedded in the driving arm connecting portion 1, the hook surface 2418 at the bottom end of the side wall hook 2415 and the lower notch edge 111 of the position-limiting groove 11 of the driving arm connecting portion 1 are mutually clamped and limited, so as to limit the position-limiting groove 11 of the driving arm connecting portion 1 to the adaptor 2a along the vertical direction.

In fact, there are various implementations of the side wall hook, and the above embodiment is to arrange the protruding hook part on the elastic cantilever 224, and if the side wall 22 is not provided with the elastic cantilever, the specific structure of the side wall hook can refer to the structure of the side wall hook disclosed in the patent document with the publication number CN109070845A, which can also be used to cooperate with the limiting groove of the driving arm connecting part for limiting the displacement of the driving arm connecting part relative to the adapter in the vertical direction, and will not be described again.

The rear end of the adapter 2a is further provided with a chamfered surface 27 inclined towards the front end, the chamfered surface 27 is gradually higher from back to front, the chamfered surface 27 is used for providing a space for convenient clamping of a limit clamping groove 12 on the driving arm connecting part 1 with a second limit part 25 and a third limit part 28a which are matched when the driving arm connecting part 1 is installed on the adapter 2a, the second limit part 25 is used for being matched with the limit clamping groove 12 on the driving arm connecting part 1 so as to limit the backward displacement of the driving arm connecting part 1 relative to the adapter 2a, the third limit part 28a is used for limiting the forward displacement of the driving arm connecting part 1 relative to the adapter 2a, the second limit part 25 in the embodiment is a first limit salient point 251 used for being clamped with a left cut edge 121 of the limit clamping groove 12, the third limit part 28a is a second limit salient point 252 used for being clamped with a right cut edge 122 of the limit clamping groove 12, and at least the second limit salient point 252 is located in the projection area of the oblique section 27 vertically downward, when the driving arm connecting part 1 is installed on the adapter 2a, the second limit salient point 252 more conveniently enters the limit slot 12 preferentially.

When the device is installed, firstly, the driving arm connecting part 1 is rotated by a certain angle, the limit slot 12 is aligned with the second limit salient point 252, the second limit salient point is sleeved on the right cut edge 122 of the limit slot 12, then the front end of the driving arm connecting part 1 is rotated downwards by taking the second limit salient point 252 as a rotation fulcrum, the first limit salient point 251 is sleeved on the left cut edge 121 of the limit slot 12, at this time, the side wall hook 2415 is extruded by two sides of the driving arm connecting part 1, the elastic cantilever 224 where the side wall hook 2415 is located is deformed inwards, so that the side wall hook 2415 also moves inwards, then the driving arm connecting part 1 is rotated downwards continuously until the driving arm connecting part is rotated in place, at this time, the limit slot 12 is mutually clamped with the first limit salient point 251 and the second limit salient point 252, so as to limit the displacement of the driving arm connecting part 1 relative to the adapter 2a in the front-back direction and the vertical direction, the side wall hook 2415 rebounds to return to the original position, and the hook surface 2418 at the bottom end of the side wall hook 2415 is in mutual clamping connection with the lower notch edge 111 of the limiting groove 11, so that the displacement of the driving arm connecting part 1 relative to the adapter 2a in the vertical direction is limited.

Second embodiment of the adapter:

as shown in fig. 4-8, the adaptor 2b of this embodiment is substantially the same as the first embodiment, and only the structure of the first position-limiting part 24b, the second position-limiting part 25 and the third position-limiting part 28 at the front end of the adaptor 2b are different from the first embodiment, specifically, the front end of the adaptor 2b forms an end cap 241, the end cap 241 is surrounded by at least a top surface 2411 and two side surfaces 2412, there is a height difference between the top surface 2411 and the top wall 21 of the end cap 241, and the top surface and the top wall are connected through a vertical connection surface 2413, the vertical connection surface 2413 can be used as the third position-limiting part 28b, and the third position-limiting part 28b abuts against the front end surface of the driving arm connecting part 1 when being installed, so as to limit the forward displacement of the driving arm connecting part 1 relative to the adaptor 2 b; the top surface 2411 is provided with a side surface 2412 respectively downwards along two sides of the width direction of the adapter 2b, the side surfaces 2412 are arranged at the outer side of the side wall 22 of the adapter 2b at intervals, and the two side surfaces 2412 have certain elastic allowance. As shown in fig. 6, a limiting block 2419 is disposed on the side surface 2412, the limiting block 2419 is a first limiting portion 24b in this embodiment, a limiting surface 24192 is disposed at the bottom end of the limiting block 2419, the limiting surface 24192 is used for being clamped with the lower notch edge 111 of the limiting groove 11 of the driving arm connecting portion 1, a step surface 2428 is disposed at the front end of the limiting block 2419 on the side surface 2412, and the step surface 2428 abuts against the front end surface of the driving arm connecting portion 1 when being installed. Preferably, the limiting blocks 2419 on both sides of the side surface 2412 have first inclined surfaces 24191, and the distance between the two first inclined surfaces 24191 is gradually widened from top to bottom, so that when the driving arm connecting part 1 is mounted on the adapter 2b, both sides of the limiting blocks 2419 are more convenient to extrude the side walls 22 of the limiting blocks 2419.

The side 2412 of the end cap 241 is provided with a slit 2416 at the front end of the limit fixture block 2419, a pressing part 2417 is formed between the slit 2416 and the limit fixture block 2419, and by additionally arranging the pressing part 2417, when a finger presses the pressing part 2417 inwards, the limit groove 11 of the driving arm connecting part 1 is separated from the adapter 2b, so that the driving arm is separated from the adapter 2b conveniently.

As shown in fig. 6, the side wall 22 of the adaptor 2b extends forward to the inner wall of the top surface 2411 of the end cap 241, and the overlapping area 3 is provided between the side wall 22 of the adaptor 2b and the side surface 2412 of the end cap 241, so that the side wall 22 supports and supports the two side surfaces 2412 of the end cap 241, preferably, the middle lower parts of the inner walls of the two side surfaces 2412 of the end cap 241 are respectively formed with a second inclined surface 2414, the distance between the two second inclined surfaces 2414 is gradually widened from top to bottom, the distance between the two side surfaces 2412 of the end cap 241 is gradually increased from top to bottom through the arrangement of the second inclined surfaces 2414, the angle range of inward bending deformation of the bottoms of the two side surfaces 2412 of the end cap 241 is increased, so that the distance between the side wall 22 and the two side surfaces 2412 of the end cap 241 can be reduced as much as possible, so as to conveniently increase the wall thickness of the side wall 22, increase the structural strength of the adaptor 2b, and facilitate more structural designs inside the side wall 22, such as the provision of pivot connections 23, ribs, etc.

The second position-limiting portion 25 in this embodiment is a first position-limiting protrusion 251, which further has another third position-limiting portion, the third position-limiting portion 28a is a second position-limiting protrusion 252, the first position-limiting protrusion 251 and the second position-limiting protrusion 252 can be connected to each other to form a track-type position-limiting protrusion, and the position-limiting protrusion 254 is used for being engaged with the position-limiting slot 12 on the driving arm connecting portion 1, so as to limit the forward and backward displacement of the driving arm connecting portion 1 relative to the adapter 2b, and also limit the upward displacement thereof.

How the driving arm connecting portion 1 is installed on the first embodiment is basically the same as how the adapter 2b of this embodiment is installed, first the driving arm connecting portion 1 rotates to clamp the limiting clamping groove 12 into one side of the limiting projection 254 at a certain angle, then the right side of the limiting projection 254 is used as a rotation fulcrum, the front end of the driving arm connecting portion 1 continues to rotate downwards, two side surfaces 2412 of the adapter 2b are pressed and abducted by two sides of the driving arm connecting portion 1 until the limiting clamping blocks 2419 on the two side surfaces 2412 rebound from the limiting groove 11, the limiting surfaces 24192 of the limiting clamping blocks 2419 are mutually clamped and limited with the lower notch edge 111 of the limiting groove 11, the limiting projection 254 is mutually clamped with the limiting clamping groove 12, and thus the driving arm connecting portion 1 is fixed on the adapter 2 b.

Third embodiment of the adapter:

as shown in fig. 9 to 11, the adapter 2c of this embodiment is substantially the same as the second embodiment, and only the second limiting portion 25 and the third limiting portion 28a are different, in this embodiment, the second limiting portion 25 is a first limiting protrusion 251, the third limiting portion 28a is a second limiting protrusion 252, the sidewall 22 forms a groove between the first limiting protrusion 251 and the second limiting protrusion 252, an elastic connecting member 253 is additionally arranged between the sidewall 22 where the first limiting protrusion 251 and the second limiting protrusion 252 are located in the middle of the groove, the elastic connecting member 253 is a V-shaped connecting member arranged transversely, and the elastic connecting member 253 is arranged to enable a resilient force to be generated between the sidewall 22 between the first limiting protrusion 251 and the second limiting protrusion 252.

The installation method of the adapter 2c and the driving arm connecting portion 1 of this embodiment is substantially the same as that of the second embodiment, and as shown in fig. 16, the driving arm connecting portion 1 is installed downward by being obliquely aligned with the adapter 2c, at this time, the right cut edge 122 of the limit slot 12 of the driving arm connecting portion 1 is engaged with the second limit bump 252 on the adapter 2c, then the front end of the driving arm connecting portion 1 is further rotated downward by using the second limit bump 252 as a rotation fulcrum, the side wall 22 between the first limit bump 251 and the second limit bump 252 has a notch, the distance between the first limit bump 251 and the second limit bump 252 is shortened along with the rotation of the driving arm connecting portion 1, then the driving arm connecting portion 1 is further rotated downward until the limit fixture block 2419 rebounds from the limit slot 11 and resets, the limit surface 24192 is engaged with the lower cut edge 111 of the limit slot 11, the displacement of the driving arm connecting part 1 relative to the adapter 2c in the vertical direction is limited, the elastic connection piece 253 and the elastic allowance of the notch between the first limit salient point 251 and the second limit salient point 252 enable the first limit salient point 251 and the second limit salient point 252 to return to the original positions, the front-back displacement of the driving arm connecting part 1 relative to the adapter 2c in the length direction and the upward displacement in the vertical direction are limited, and the driving arm connecting part 1 is fixed on the adapter 2 c.

Fourth embodiment of the adapter:

as shown in fig. 12 to 15, the adaptor 2d of this embodiment is substantially identical to the third embodiment, and there is only a difference between the first position-limiting portion 24c and the third position-limiting portion 28c, specifically, the front end of the top wall 21 of the adaptor 2d of this embodiment has a cantilever 211, the free end of the cantilever 211 is provided with a position-limiting fastening point 212, preferably, the fixed end of the cantilever 211 is provided at the front end of the top wall 21 of the adaptor 2d, and the position-limiting fastening point 212 is provided with a guiding inclined surface at a side facing the fixed end, the adaptor 2d further includes an end cap 242, the end cap 242 is formed by surrounding at least two side plates 2422 and a top plate 2421, the top plate 2421 is provided with a positioning hole 2423, the side plates 2422 are respectively provided with horizontal guiding ribs 2424, each guiding rib 2424 is provided with a barb 2425 at a side inserted towards the adaptor 2d, the side wall 22 of the adaptor 2d is provided with a groove 242221 at a position opposite to the guiding ribs 2424, and a stop block 222 is arranged at the front end of the adapter 2d in each groove 221, the end cap 242 and the adapter 2d are fixed by the fit of the guide convex strip 2424 and the groove 221 and the mutual nesting fit of the stop clamping point 212 and the positioning hole 2423, an extension part 2426 protrudes from the two side plates 2422 towards the adapter 2d and forms a first stop part 24c, when the end cap 242 is mounted on the adapter 2d, the height difference is formed between the top plate 2421 and the top wall 21 of the adapter 2d, the top plate 2421 can be used as a third stop part 28c to abut against and stop the front end surface of the driving arm connecting part 1, and the forward displacement of the driving arm connecting part 1 relative to the adapter 2d is further limited.

The adapter 2d and the driving arm connecting portion 1 of this embodiment are installed in such a manner that the driving arm connecting portion 1 is first installed to be inclined downward in alignment with the adapter 2d, and at this time, the right side cut edge 122 of the limit slot 12 of the driving arm connecting part 1 is mutually clamped with the second limit salient point 252 on the adapter 2d, the front end of the driving arm connecting part 1 continues to rotate downwards by taking the second limit salient point 252 as a rotating fulcrum until the limit slot 12 is clamped with the first limit salient point 251 and the second limit, then, the end cap 242 is mounted toward the adaptor 2d, and the end cap 242 is fixed to the adaptor 2d by the engagement of the positioning hole 2423 with the position-restricting click 212 and the engagement of the guiding protrusion 2424 with the groove 221, and at this time, the extension 2426 of the end cap 242 and the limiting groove 11 of the driving arm connecting portion 1 are engaged with each other, so that the end cap 242 and the driving arm connecting portion 1 are fixed to the adaptor 2 d.

Fifth embodiment of the adapter:

as shown in fig. 17, the adaptor 2e of this embodiment is substantially identical to the adaptor 2b of the second embodiment, and only the difference exists between the third position-limiting portions, the third position-limiting portion 28b in this embodiment is a vertical connecting surface 2413 connected by the height difference existing between the top surface 2411 of the end cap 241 and the top wall 21 of the adaptor 2e, the vertical connecting surface 2413 is used for abutting against the front end surface of the driving arm connecting portion 1, and is used for limiting the forward displacement of the driving arm connecting portion 1 relative to the adaptor 2e, and the second position-limiting portion 25 is a first position-limiting convex point 251 located on the side wall 22.

The installation manner of the driving arm connecting portion 1 and the adapter 2e of this embodiment is as shown in fig. 18, the driving arm connecting portion 1 is obliquely aligned to the adapter 2e, the first limit bump 251 is aligned to the left incision edge 121 of the limit slot 12, then the front end of the driving arm connecting portion 1 is rotated downward, two side surfaces 2412 of the adapter 2e are pressed and abducted by two sides of the driving arm connecting portion 1 until the limit fixture blocks 2419 on the two side surfaces 2412 rebound from the limit slot 11, the limit surface 24192 of the limit fixture block 2419 and the lower incision edge 111 of the limit slot 11 are mutually clamped and limited, the first limit bump 251 is clamped with the left incision edge 121 of the limit slot 12, the front end of the driving arm connecting portion 1 abuts against the vertical connection surface 2413, and the driving arm connecting portion 1 is fixed on the adapter 2 e.

The invention also discloses a windshield wiper, which comprises any one of the adapters 2a, 2b, 2c and 2d, wherein the adapters 2a, 2b, 2c and 2d are used for realizing the connection between the windshield wiper assembly and the driving arm, namely, the windshield wiper of the type is most obviously different from the traditional windshield wiper in that any one of the adapters 2a, 2b, 2c and 2d is adopted, the structure of the windshield wiper assembly used is the structural characteristic known by a person skilled in the art, the traditional known technology is also used for installing the adapters 2a, 2b, 2c and 2d to the windshield wiper assembly, and the adapters 2a, 2b, 2c and 2d can be installed to corresponding positions in an up-down swinging mode along the length direction of the windshield wiper assembly, so that the description is not repeated.

In the description of the present invention, 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, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, 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. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.