CN113428113A

CN113428113A - Windscreen wiper

Info

Publication number: CN113428113A
Application number: CN202110912163.7A
Authority: CN
Inventors: 尤永标
Original assignee: Ningbo Aiduo Automobile Wiper Blade Manufacture Co ltd
Current assignee: Ningbo Aiduo Automobile Wiper Blade Manufacture Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-09-24

Abstract

The invention discloses a windscreen wiper, which comprises a windscreen wiper blade assembly and a joint seat arranged in the middle of the windscreen wiper, wherein the joint seat comprises a base and a connecting seat, a fixing groove used for being connected with the windscreen wiper blade is arranged on the bottom surface of the base, a first groove is arranged on the top surface of the base, a first opening communicated with the first groove is arranged on the front end surface of the base, a clamping groove is arranged on the bottom surface of the first groove, and sliding grooves are respectively arranged on the left inner side wall and the right inner side wall of the first groove; the left side and the right side of the bottom plate of the connecting seat are matched with the sliding grooves, elastic buckles are arranged on the bottom surface, the bottom plate is inserted into the sliding grooves, and the buckles are clamped into the clamping grooves. According to the invention, different connecting seats can be replaced to adapt to wiper arms of different brands and models, so that the universality is improved; and, in the connecting seat inserted the base from the side, it is very convenient to install and dismantle, and the combination between connecting seat and the base is fixed to be realized through the spout, has improved joint strength, and long service life can not become flexible yet for long-time use.

Description

Windscreen wiper

Technical Field

The invention relates to the technical field of wipers, in particular to a wiper.

Background

The windscreen wiper is used for wiping and wiping rain drops and dust attached to a windshield of a vehicle so as to improve the visibility of a driver and increase the driving safety, and is an important device of transportation tools such as automobiles, trains, electric trains, engineering vehicles and the like.

Due to the fact that the wiper arm structures of different transportation tools are different, the joint seat structures of the wiper are also various, and therefore the universality of the wiper is poor.

For this reason, some existing wiper blades are equipped with a universal joint. For example, chinese patent CN107176141A discloses a universal wiper connector, wherein a base is provided with a connecting seat for mounting a wiper seat, one end of the connecting seat is provided with a front card, the other end of the connecting seat is provided with a rear buckle, and two sides of the bottom of the connecting seat are provided with first limiting strips; the base is equipped with the kerve, and the kerve one end of base is equipped with the preceding draw-in groove with the preceding card complex of connecting seat, and the kerve other end is equipped with the back screens with the back buckle complex of connecting seat, and the kerve both sides limit of base is equipped with the spacing strip of the crisscross complex second of first spacing strip bottom the connecting seat. In this scheme, brush first seat can be connected with the car windshield wiper swing arm cooperation of multiple brand model, therefore the commonality is strong. However, in this scheme, there are the following problems:

first, the connecting seat is connected with the base through preceding card and back buckle, and the structure is complicated, though simple to operate, the difficult dismantlement is changed.

Secondly, the connecting seat bears the pulling force of wiper arm by preceding card and back buckle, and bearing area is less, and easy damage, life is low.

In view of this, there is a need to improve the existing wiper blade joint seat to simplify the structural design, facilitate assembly and disassembly, reduce the cost, and prolong the service life.

Disclosure of Invention

In view of the above-mentioned drawbacks, the present invention provides a wiper blade to solve the problems of the existing wiper blade that the connection structure between the connector seat and the base is complex, the installation is convenient, the connector seat is difficult to disassemble and replace, and the connector seat is easy to damage.

Therefore, the windscreen wiper provided by the invention comprises a windscreen wiper assembly and a connector seat arranged in the middle of the windscreen wiper assembly, wherein the windscreen wiper assembly comprises a windscreen wiper blade, two side edges of the middle of the windscreen wiper blade are respectively provided with a positioning groove, and the connector seat comprises:

the bottom surface of the base is provided with a fixing groove used for being connected with the wiper blade, the middle part of the fixing groove is provided with a positioning column, the base is fixed on the wiper blade through the fixing groove, and the positioning column is clamped into the positioning groove; a first groove is formed in the top surface of the base, a first opening communicated with the first groove is formed in the front end surface of the base, a clamping groove is formed in the bottom surface of the first groove, and sliding grooves are formed in the left inner side wall and the right inner side wall of the first groove respectively;

the left side and the right side of the bottom plate of the connecting seat are matched with the sliding grooves, the bottom surface of the bottom plate is provided with an elastic buckle, the left side and the right side of the bottom plate are inserted into the sliding grooves, and the elastic buckle is clamped into the clamping grooves.

In the above technical scheme, preferably, the bottom surface of bottom plate is equipped with the second recess, the preceding terminal surface of bottom plate be equipped with the second opening of second recess intercommunication, be equipped with the elastic arm on the back wall of second recess, the elastic arm orientation second open-ended direction extends to the outside of bottom plate, be equipped with convex jack catch down on the bottom surface of elastic arm, the elastic arm with the jack catch forms the elasticity buckle.

In the above technical solution, preferably, the jaw has a bar-shaped column at a front end, and two ends of the bar-shaped column are connected with the bottom surface of the elastic arm as a whole through a wedge-shaped portion.

In the above technical solution, preferably, the left and right sides of the outer end of the elastic arm extend to the left and right respectively to form an operation portion, and the top surface of the outer end of the operation portion is arc-shaped.

In the above technical scheme, preferably, the top surface of the bottom plate is provided with a connecting block, connecting shafts are respectively convexly arranged on the front side and the rear side of the middle part of the connecting block, one end of the connecting block is further provided with a connecting groove, and a notch communicated with the connecting groove is arranged on the top surface of the connecting block.

In the above technical solution, preferably, the clamping groove is adapted to the shape of the clamping jaw.

In the above technical solution, preferably, the sliding groove is perpendicular to a front end surface of the base.

In the above technical solution, preferably, the sliding groove is disposed to be inclined with a front end surface of the base.

In above-mentioned technical scheme, preferably, be equipped with the bar groove that runs through along left right direction on the bottom surface of base, be equipped with the third recess on the bottom surface in bar groove, the fixed slot sets up on the lateral wall in bar groove, on the diapire in bar groove with the relative position of reference column is equipped with the breach.

According to the technical scheme, the windscreen wiper provided by the invention solves the problems that the connector base is inconvenient to disassemble and replace and the buckle is easy to damage in the prior art. Compared with the prior art, the invention has the following beneficial effects:

different connecting seats can be replaced to adapt to automobile wiper arms of different brands and models, so that the universality of the wiper is improved; and, the connecting seat inserts in the base from the side, only fixed through an elastic buckle and base screens, and installation and dismantlement are all very convenient, and the combination between connecting seat and the base is fixed to be realized through the spout, rather than being undertaken by elastic buckle, has improved the joint strength of joint carrier and base, and long-time the use can not become flexible yet, can guarantee that the windscreen wiper piece presses well on glass, improves the windscreen wiper effect, and not fragile, long service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described and explained. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic view of a wiper blade according to the present invention;

FIG. 2 is a schematic view of the wiper blade of FIG. 1 shown assembled with a wiper blade;

fig. 3 is a schematic structural view of a joint base according to an embodiment 1 of the present invention;

fig. 4 is an exploded view of the joint base according to embodiment 1;

fig. 5 is a bottom view of the connecting socket according to embodiment 1;

FIG. 6 is a bottom view of the base according to embodiment 1;

FIG. 7 is an enlarged view of portion A of FIG. 6;

fig. 8 is a schematic view of an embodiment 2 of a joint base according to the present invention;

fig. 9 is an exploded view of the socket according to embodiment 2.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

In order to make the technical solution and implementation of the present invention more clearly explained and illustrated, several preferred embodiments for implementing the technical solution of the present invention are described below.

It should be noted that the terms of orientation such as "inside, outside", "front, back" and "left and right" are used herein as reference objects, and it is obvious that the use of the corresponding terms of orientation does not limit the scope of protection of the present invention.

As shown in fig. 1, the wiper blade of the present invention includes a wiper blade assembly 100 and a socket 200 disposed at a central portion of the wiper blade assembly 100.

The wiper blade assembly 100 has the same composition and structure as those of the prior art, and includes a wiper blade 110, and positioning grooves 111 are symmetrically formed on the middle side edges of the wiper blade 110. The joint seat 200 is composed of a detachable base 10 and a connecting seat 20, and a fixing groove matched with the wiper blade 110 is formed on the bottom surface of the base 10, fixed on the wiper blade 110 through the fixing groove, and positioned through the positioning groove 111. The connecting base 20 is inserted into the base 10 from the side and is locked and fixed with the base 10 by the elastic buckle 23.

According to the windscreen wiper provided by the invention, the connecting seat 20 is inserted into the base 10 from the side surface, and is clamped and fixed with the base 10 only through the elastic buckle 23, so that the mounting and dismounting are very convenient; in addition, different connecting seats 20 can be replaced to adapt to automobile wiper arms of different brands and models, the universality of the wiper is improved, and the cost is reduced.

The coupling structure of the base 10 and the coupling socket 20 can be realized by the following two embodiments.

Example 1.

Referring to fig. 3 and 4, fig. 3 is a schematic view of a connector housing according to an embodiment 1 of the present invention;

fig. 4 is an exploded view of the socket shown in fig. 3.

As shown in fig. 3 and 4, the connector holder according to embodiment 1 of the present invention includes a base 10 and a connecting holder 20.

As shown in fig. 4, a fixing groove 11 for connecting with a wiper blade is provided on the bottom surface of the base 10, a first groove 12 is provided on the top surface, and a first opening communicating with the first groove 12 is provided on the front side surface of the base 10, and the width of the first opening is the same as that of the first groove 12. A clamping groove 13 is arranged on the bottom surface of the first groove 12, the clamping groove 13 is close to the front end surface of the base 10, and two inner side walls (left and right side walls) of the first groove 12 are respectively provided with a sliding groove 14.

As shown in fig. 4 and 6, the connecting base 20 has a bottom plate 21, and a connecting block 22 is provided at the center of the top surface of the bottom plate 21, and the connecting block 22 is used for connecting a wiper arm.

Two side surfaces (left and right side surfaces) of the bottom plate 21 are matched with the sliding grooves 14 on the base 10, and the bottom surface of the bottom plate 21 is provided with an elastic buckle 23.

The left and right lateral surfaces of the bottom plate 21 are inserted into the sliding grooves 14 from the front to the back from the first opening respectively, and after the sliding grooves are inserted into the deepest part, the elastic buckles 23 are clamped into the clamping grooves 13, so that the connecting seat 20 is clamped and fixed on the base 10.

Please refer to fig. 7 again to describe the detailed structure of the elastic buckle 23. As shown in fig. 7, the bottom surface of the bottom plate 21 is provided with a second groove 24, the front end surface of the bottom plate 21 is provided with a second opening communicated with the second groove 24, the upper end of the rear wall of the second groove 24 is provided with an elastic arm 25 horizontally arranged, the elastic arm 25 extends towards the second opening, the outer end of the elastic arm extends out of the bottom plate 21, the outer end of the bottom surface of the elastic arm 25 is provided with a jaw protruding downwards, the jaw has a bar-shaped column 261 at the front end, the left end and the right end of the bar-shaped column 261 are respectively connected with the bottom surface of the elastic arm 25 into a whole through a wedge portion 262, and the elastic arm 25 and the jaw form an elastic buckle 23. The clamping groove 13 is matched with the shape of the clamping jaw.

The left and right sides of the outer end of the elastic arm 25 extend to the left and right to form an operation part 251, the top surface of the outer end of the operation part 251 is arc-shaped, and a strip-shaped column 261 is arranged on the bottom surface of the operation part. Due to the structural design, the width of the inner end of the elastic arm 25 is small, the elasticity is increased, the operating part 251 is wide, the lifting operation is convenient, the strength is improved, the elastic arm is not easy to break, and the service life is prolonged. In addition, the bar-shaped columns 261 are provided on the bottom surface of the operating part 251, so that the bar-shaped columns 261 have a long width, and the strength of the jaws and the locking force are improved.

Referring to fig. 4, the connecting shaft 221 is protruded from the front and rear side surfaces of the middle portion of the connecting block 22, the connecting groove 222 is further disposed at one end of the connecting block 22, a notch communicated with the connecting groove 222 is disposed on the top surface of the connecting block 22, and the connecting shaft 221 and the connecting groove 222 are used for connecting the wiper arm.

As shown in fig. 5, a strip-shaped groove 15 penetrating in the left-right direction is formed in the bottom surface of the base 10, and a third groove 16 is formed in the bottom surface of the strip-shaped groove, so that the contact area between the base and the wiper blade is reduced, and the mounting is convenient. The front side wall and the rear side wall of the strip-shaped groove 15 are provided with fixing grooves 17 for mounting the wiper blade, the middle part of the fixing groove 17 is provided with a positioning column 18 which is matched with a positioning groove 111 in the middle part of the wiper blade 110, and the bottom wall of the fixing groove 17 is provided with a notch 19 at a position opposite to the positioning column 18. When the base 10 is installed with the wiper blade, the front and rear side walls of the base 10 are pulled outward, the positioning column 18 is clamped in the positioning groove, and the two side edges of the wiper blade are clamped in the fixing groove 17. Through the positioning column 18 and the positioning groove, the base 10 can be ensured to be positioned in the middle of the wiper blade. The setting of breach is convenient for observe installation reference column 18 on the one hand, and on the other hand has also increased the elasticity of the lateral wall of bar groove 15.

In the present embodiment 1, the sliding grooves 14 on the base 10 are respectively provided perpendicularly to the front end surface of the base 10, whereby the connecting holder 20 is inserted into the base 10 in a direction perpendicular to the wiper blade axis.

Example 2.

As shown in fig. 8 and 9, the embodiment 2 of the joint base of the present invention is different from the embodiment 1 mainly in that the sliding grooves 14 on the left and right side walls of the first groove 12 are respectively disposed obliquely to the front side of the base 10, and correspondingly, the left and right sides of the bottom plate 21 are also disposed obliquely.

Thereby, the connecting holder 20 is inserted into the base 10 in a direction inclined to the axis of the wiper blade. Due to the design, the pulling force of the wiper arm can be borne by a part of the side wall of the first groove 12 instead of being exerted on the jaws completely, so that the stress of the jaws is reduced, the connecting seat 20 can be prevented from being separated under the pulling of the wiper arm on one hand, and the service life of the jaws is prolonged on the other hand.

The invention provides a wiper, and a method for mounting and dismounting a joint seat comprises the following steps:

during installation, the two side edges of the bottom plate of the joint seat are inserted into the sliding grooves in the base, the joint seat is pushed inwards until the elastic buckle is clamped into the clamping groove in the base, and installation is completed.

When the connector is disassembled, the elastic buckle is lifted upwards by hand to enable the clamping jaw to be separated from the clamping groove, and then the connector seat is pulled outwards.

With the above description of the specific embodiments, compared with the prior art, the joint seat of the wiper blade provided by the invention has the following advantages:

firstly, can be through changing the car windscreen wiper arm of different brand models with the adaptation through changing different connecting seats, improved the commonality of windscreen wiper, the cost is reduced.

Secondly, the connecting seat is inserted into the base from the side, and is fixed with the base screens only through an elastic buckle, and the installation and the dismantlement are all very convenient.

Third, the combination between connecting seat and the base is fixed to be realized through the spout, rather than being undertaken by elastic buckle, has improved the joint strength of joint seat with the base, and is not fragile, long service life.

Fourthly, the sliding groove in the base and the front side face of the base are obliquely arranged, the connecting base is inserted into the base in the direction oblique to the axis of the wiper blade, and the pulling force of the wiper arm can be born by the side wall of the first groove instead of being completely applied to the clamping jaw, so that the stress of the clamping jaw is reduced, and the service life is prolonged.

Fifthly, the operation part of the elastic claw has larger width, convenient operation and high strength.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.

Claims

1. The utility model provides a wiper, is in including wiper blade assembly and setting the connector seat at the middle part of wiper blade assembly, wiper blade assembly includes the wiper blade, the middle part both sides limit of wiper blade is equipped with the constant head tank respectively, its characterized in that, the connector seat includes:

2. The wiper blade of claim 1, wherein a second groove is formed in the bottom surface of the base plate, a second opening communicated with the second groove is formed in the front end surface of the base plate, an elastic arm is arranged on the rear wall of the second groove, the elastic arm extends to the outside of the base plate towards the second opening, a claw protruding downwards is arranged on the bottom surface of the elastic arm, and the elastic arm and the claw form the elastic buckle.

3. The wiper blade of claim 2, wherein said latch has a front bar-shaped post, and both ends of said bar-shaped post are integrally connected to the bottom surface of said elastic arm by a wedge-shaped portion.

4. The wiper blade of claim 2, wherein the left and right sides of the outer end of the spring arm extend left and right to form an operating portion, and the top surface of the outer end of the operating portion is curved.

5. The wiper blade of claim 1, wherein the top surface of the base plate is provided with a connecting block, the front and rear side surfaces of the middle part of the connecting block are respectively provided with a connecting shaft in a protruding manner, one end of the connecting block is further provided with a connecting groove, and the top surface of the connecting block is provided with a notch communicated with the connecting groove.

6. The wiper blade of claim 2, wherein said engaging groove is adapted to the shape of said pawl.

7. The wiper blade of claim 1, wherein said sliding channel is disposed perpendicular to a front face of said base.

8. The wiper blade of claim 1, wherein said sliding groove is disposed obliquely to the front surface of said base.

9. The wiper blade of claim 1, wherein a strip-shaped groove penetrating in the left-right direction is formed in the bottom surface of the base, a third groove is formed in the bottom surface of the strip-shaped groove, the fixing groove is formed in the side wall of the strip-shaped groove, and a notch is formed in the bottom wall of the strip-shaped groove and is opposite to the positioning column.