CN215590692U - Novel scrape mounting structure of arm and doctor-bar - Google Patents
Novel scrape mounting structure of arm and doctor-bar Download PDFInfo
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- CN215590692U CN215590692U CN202121325105.6U CN202121325105U CN215590692U CN 215590692 U CN215590692 U CN 215590692U CN 202121325105 U CN202121325105 U CN 202121325105U CN 215590692 U CN215590692 U CN 215590692U
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Abstract
The utility model discloses a novel mounting structure of a scraping arm and a scraping blade, which comprises the scraping arm, a connecting piece, a fixed seat, a spring piece and a scraping blade rubber strip, wherein the connecting piece comprises a hinged part hinged with the fixed seat and a decorative cap head connected with the hinged part into a whole; an elastic deformation part which is elastically deformed under the action of external force is arranged on a hinged top surface of the connecting piece connected with the tops of the two hinged side surfaces, an elastic deformation part accommodating notch is arranged at the position of the cap head close to the hinged part, the elastic deformation part extends into the elastic deformation part accommodating notch on the cap head, a pressing unlocking part is arranged at the part of the elastic deformation part extending into the elastic deformation part accommodating notch, a stopping boss is arranged on the elastic deformation part, and a stopping groove is arranged between the stopping boss and the cap head; the end part of the top arm connected with the scraping arm and the two side arms close to the cap head is provided with a buckle boss. The utility model has the advantages of simple structure and assembly, and can not hurt the appearance of the scraping arm and the connecting piece cap head.
Description
Technical Field
The utility model relates to the technical field of windscreen wipers, in particular to a novel mounting structure of a wiper arm and a wiper blade.
Background
The connecting piece between the arm of scraping and the doctor-bar in current windscreen wiper is not convenient, and the structure is also more complicated. In addition, when the scraping arm is assembled with the connecting piece on the scraping blade, the appearance of the scraping arm and the connecting piece is easily scratched, and the appearance quality of the windscreen wiper is influenced. At present in order to scrape connecting piece easy dismounting on arm and the doctor-bar, some windscreen wiper producers in the industry just set up an elastic button on the connecting piece, seted up the button window on scraping the arm, when will scraping the arm and insert the connecting piece on, the elastic button compresses the back and inserts in the button window at elasticity. When the scraping arm needs to be disassembled, the elastic button is pressed down and then the scraping arm is pulled out. The windscreen wiper with the structure is provided with the button window with a certain depth on the wiping arm, so that the mould structure is complex, and the button window can be formed only by the side core-pulling mechanism.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a novel installation structure of the wiper arm and the wiper blade, which has simple structure and assembly and can not damage the complete wiper arm during assembly, aiming at the defects of the existing wiper blade.
The technical problem to be solved by the utility model can be realized by the following technical scheme:
a novel installation structure of a scraping arm and a scraping blade comprises the scraping arm, a connecting piece, a fixed seat, a spring piece and a scraping blade rubber strip, wherein the scraping blade rubber strip is installed on the fixed seat through the spring piece, and the fixed seat is hinged on the connecting piece and can drive the scraping blade rubber strip to swing around a hinged point of the fixed seat and the connecting piece; the connecting piece is characterized by comprising a hinge part hinged with the fixed seat and a decorative cap head connected with the hinge part into a whole; an elastic deformation part which is elastically deformed under the action of external force is arranged on a hinged top surface of the connecting piece connected with the tops of the two hinged side surfaces, an elastic deformation part accommodating notch is arranged at a position, close to the hinged part, of the cap head, the elastic deformation part extends into the elastic deformation part accommodating notch on the cap head, a pressing unlocking part is arranged at a part, extending into the elastic deformation part accommodating notch, of the elastic deformation part, a stopping boss is arranged on the elastic deformation part, and a distance is formed between the stopping boss and the cap head and forms a stopping groove; a clamping boss is arranged at the end part, close to the cap head, of the top arm connected with the scraping arm and the two side arms; the scraping arm and the connecting piece are assembled in the following mode: inserting the hinge part of the connecting piece into the scraping arm from the end of the scraping arm close to the cap head, and applying a deforming force to the anti-return boss when the buckle boss meets the anti-return boss in the inserting process to force the elastic deformation part to deform so that the buckle boss passes over the anti-return boss and enters the anti-return groove to insert the connecting piece into position; the two side arms of the scraping arm are matched with the two hinged side surfaces on the connecting piece to limit in the X-axis direction and the Y-axis direction, and the stopping boss on the connecting piece is matched with the buckle boss on the scraping arm and the cap head on the connecting piece to limit in the Z-axis direction; when the scraping arm is detached, the pressing unlocking part is pressed down to enable the elastic deformation part to deform, the stopping boss is driven to be separated from the blocking of the buckle boss, and the connecting piece can be pulled out from the scraping arm.
In a preferred embodiment of the present invention, at least one convex strip parallel to the length direction of the doctor blade rubber strip is respectively disposed on two hinged side surfaces of the hinged portion parallel to the length direction of the doctor blade rubber strip; the inner side surfaces of the connecting positions of the two side arms of the scraping arm and the hinged part of the connecting piece are respectively provided with at least one groove parallel to the length direction of the scraping piece adhesive tape, and in the inserting process, the convex strips on the two hinged side surfaces of the connecting piece can enable the two side arms of the scraping arm to expand outwards, so that the convex strips can smoothly enter the grooves; after the connecting piece is inserted in place, the convex strips on the two hinged side surfaces of the hinged part fall into the grooves corresponding to the scraping arms; in the process of pulling out, the convex strips on the two hinged side surfaces of the connecting piece can enable the two side arms of the scraping arm to expand outwards, so that the convex strips exit from the grooves; the scraping arm and the connecting piece are matched with each other through the convex strips and the grooves to limit the Y-axis direction.
In a preferred embodiment of the present invention, after the connecting member is inserted into position, a gap between the snap boss and the backstop boss is greater than 0mm and less than 1 mm.
In a preferred embodiment of the present invention, the height of the catching boss is greater than the height of the backstop boss.
In a preferred embodiment of the utility model, the rib is in clearance fit with the groove.
In a preferred embodiment of the utility model, the number of the protruding strips on each hinge side is two, and the two protruding strips are parallel to each other; the number of the grooves on each side arm is also two, and the two grooves are parallel to each other.
In a preferred embodiment of the present invention, a surface of the snap boss facing the cap head is an inclined surface, and a surface of the retaining boss facing away from the cap head is also an inclined surface.
Due to the adoption of the technical scheme, the utility model has the advantages of simple structure and assembly, and meanwhile, the appearance of the wiper arm and the appearance of the cap head of the connecting piece can not be damaged in the process of inserting and extracting the connecting piece into and from the wiper arm, so that the appearance quality of the whole wiper is improved. The utility model particularly does not need to arrange a button window on the scraping arm, so that the scraping arm forming die is simpler in structure.
Drawings
FIG. 1 is a perspective view of the assembly among the connecting member, the fixing base and the doctor blade rubber strip of the present invention.
FIG. 2 is an assembly front view of the connecting member, the fixing seat and the doctor blade rubber strip of the present invention.
Fig. 3 is a sectional view taken along line G-G of fig. 2.
Fig. 4 is a top view of the connector of the present invention.
Fig. 5 is a cross-sectional view taken along line D-D of fig. 4.
Fig. 6 is a sectional view F-F of fig. 5.
Fig. 7 is a side view of the wiper arm of the present invention.
Fig. 8 is a cross-sectional view C-C of fig. 7.
Fig. 9 is an enlarged schematic view of fig. 8 at E.
Fig. 10 is a schematic view showing a process of inserting the connecting member into the wiper arm according to the present invention.
Fig. 11 is a schematic view of the connector of the present invention fully inserted into the wiper arm.
Fig. 12 is a top view of fig. 11.
Fig. 13 is a sectional view taken along line B-B of fig. 11.
Fig. 14 is a sectional view a-a of fig. 12.
Detailed Description
The utility model is further described below in conjunction with the appended drawings and detailed description.
Referring to the attached drawings, the novel installation structure of the scraping arm and the scraping blade comprises a scraping arm 10, a connecting piece 20, a fixed seat 30, a spring piece 40, a scraping blade rubber strip 50 and two end covers 60.
Referring to fig. 1 to 3 in particular, the doctor blade rubber strip 50 is mounted on the fixing seat 30 through the spring plate 40, and the fixing seat 30 is hinged to the connecting member 20 and can drive the doctor blade rubber strip 50 to swing around a hinge point 31 between the fixing seat 30 and the connecting member 20; two end covers 60 are installed at two ends of the fixing base 30 to axially limit the spring piece 40 and the doctor blade rubber strip 50. These are no differences from the prior art.
The utility model is characterized in that:
referring to fig. 4 to 6, the connecting member 20 includes a hinge portion 21 hinged to the holder 30 and a visor head 22 integrally connected to the hinge portion 21.
Two convex strips 21aa and 21ba parallel to the longitudinal direction of the blade rubber strip 50 are provided on the two hinge side surfaces 21a and 21b of the hinge portion 21 parallel to the longitudinal direction of the blade rubber strip 50, respectively, and the two convex strips 21aa and 21ba are also parallel to each other. Of course, only one rib may be provided.
An elastic deformation portion 21ca that elastically deforms under an external force is provided on a hinge top surface 21c of the link 20 connected to the top portions of the two hinge side surfaces 21a, 21 b.
An elastic deformation portion receiving notch 22a is provided at a position of the cap head 22 adjacent to the hinge portion 21, and an elastic deformation portion 21ca is extended into the elastic deformation portion receiving notch 22a on the cap head 22 and a press unlocking portion 21cb is provided at a portion where the elastic deformation portion 21ca is extended into the elastic deformation portion receiving notch 22 a.
The elastic deformation portion 21ca is provided with a retaining boss 21cc, and the retaining boss 21cc is spaced from the cap head 22 by a distance constituting a retaining groove 21 cd. The side 21cca of the backstop boss 21cc far from the cap head 22 is a slope.
Referring to fig. 7 to 9 in particular, two grooves 11a and 12a parallel to the longitudinal direction of the blade rubber strip 50 are provided on the inner side surfaces of the connecting positions of the side arms 11 and 12 of the wiper arm 10 and the hinge portion 21 of the connecting member 20, respectively, and the grooves 11a and 12a are also parallel to each other, but only one groove 11a and 12a may be provided.
A clamping boss 13a is arranged at the end part of the top arm 13, which is connected with the two side arms 11 and 12, of the scraping arm 10 and is close to the cap head 22; the height H of the catch projection 13a is greater than the height H1 of the backstop projection 21 cc. The side 13aa of the snap boss 13a facing the cap head 22 is also an inclined surface, which cooperates with the inclined surface on the retaining boss 21cc to apply a downward force to the retaining boss 21 cc.
Referring to fig. 10 to 14, the wiper arm 10 of the present invention is assembled with the connecting member 20 as follows:
the hinge portion 21 of the attachment 20 is inserted into the wiper arm 10 from the end of the wiper arm 10 adjacent to the cap head 22, and during the insertion, when the catch projection 13a encounters the backstop projection 21cc, a force deforming downward (downward in the drawing) is applied to the backstop projection 21cc, forcing the elastic deformation portion 21ca to deform downward as a whole, so that the catch projection 13a passes over the backstop projection 21cc and enters the backstop groove 21cd to insert the attachment 20 into position. After the connector 20 is inserted into position, a gap X greater than 0mm and less than 1mm is formed between the snap boss 13a and the backstop boss 21 cc. Meanwhile, a gap which is larger than 0mm and smaller than 1mm is formed between the bottom surface of the buckling boss 13a and the groove bottom of the retaining groove 21 cd. The specific size of the gap can be set as required, so long as the snap boss 13a is conveniently pulled out of the retaining groove 21 cd.
In addition, during the insertion process, the protruding strips 21aa, 21ba on the two hinged sides 21a, 21b of the connecting element 20 will cause the two side arms 11, 12 of the scraping arm 10 to expand outwardly, so that the protruding strips 21aa, 21ba can smoothly enter the corresponding grooves 11a, 12 a.
After the connecting element 20 is inserted into position, the protruding strips 21aa, 21ba on the two hinge sides 21a, 21b of the hinge portion 21 fall into the corresponding recesses 11a, 12a of the wiper arm 10, and the protruding strips 21aa, 21ba are in clearance fit with the corresponding recesses 11a, 12 a. This facilitates the movement of the ribs 21aa, 21ba into and out of the grooves 11a, 12 a.
After the scraper arm 10 and the connecting piece 20 are assembled, the scraper arm 10 and the connecting piece 20 are limited in the Y-axis direction through the matching of the convex strips 21aa and 21ba and the grooves 11a and 12a, the two side arms 11 and 12 of the scraper arm 10 are matched with the two hinged side surfaces 21a and 21b on the connecting piece 20 to be limited in the X-axis direction, and the stopping boss 21cc on the connecting piece 20 is matched with the buckling boss 13a on the scraper arm 10 and the cap head 22 on the connecting piece 20 to be limited in the Z-axis direction.
When the scraping arm 10 is disassembled, the unlocking part 21cb is pressed downwards, so that the elastic deformation part 21ca is deformed downwards, the backstop boss 21cc is driven to move downwards, the stopping of the buckle boss 13a is released, and the connecting piece 20 can be pulled out from the scraping arm 10; during the pulling-out process, the protruding strips 21aa, 21ba on the two hinged sides 21a, 21b of the connecting element 20 will cause the two side arms 11, 12 of the scraping arm 10 to expand outwardly, so that the protruding strips 21aa, 21ba exit the grooves 11a, 12 a.
The utility model has the advantages of simple structure and assembly, and simultaneously, the appearance of the wiper arm and the cap head of the connecting piece can not be damaged in the process of inserting and extracting the wiper arm by the connecting piece, so that the appearance quality of the whole wiper is improved. The utility model particularly does not need to arrange a button window on the scraping arm, so that the scraping arm forming die is simpler in structure.
Claims (6)
1. A novel installation structure of a scraping arm and a scraping blade comprises the scraping arm, a connecting piece, a fixed seat, a spring piece and a scraping blade rubber strip, wherein the scraping blade rubber strip is installed on the fixed seat through the spring piece, and the fixed seat is hinged on the connecting piece and can drive the scraping blade rubber strip to swing around a hinged point of the fixed seat and the connecting piece; the connecting piece is characterized by comprising a hinge part hinged with the fixed seat and a decorative cap head connected with the hinge part into a whole; an elastic deformation part which is elastically deformed under the action of external force is arranged on a hinged top surface of the connecting piece connected with the tops of the two hinged side surfaces, an elastic deformation part accommodating notch is arranged at a position, close to the hinged part, of the cap head, the elastic deformation part extends into the elastic deformation part accommodating notch on the cap head, a pressing unlocking part is arranged at a part, extending into the elastic deformation part accommodating notch, of the elastic deformation part, a stopping boss is arranged on the elastic deformation part, and a distance is formed between the stopping boss and the cap head and forms a stopping groove; a clamping boss is arranged at the end part, close to the cap head, of the top arm connected with the scraping arm and the two side arms; the scraping arm and the connecting piece are assembled in the following mode: inserting the hinge part of the connecting piece into the scraping arm from the end of the scraping arm close to the cap head, and applying a deforming force to the anti-return boss when the buckle boss meets the anti-return boss in the inserting process to force the elastic deformation part to deform so that the buckle boss passes over the anti-return boss and enters the anti-return groove to insert the connecting piece into position; the two side arms of the scraping arm are matched with the two hinged side surfaces on the connecting piece to limit in the X-axis direction and the Y-axis direction, and the stopping boss on the connecting piece is matched with the buckle boss on the scraping arm and the cap head on the connecting piece to limit in the Z-axis direction; when the scraping arm is detached, the pressing unlocking part is pressed down to enable the elastic deformation part to deform, the stopping boss is driven to be separated from the blocking of the buckle boss, and the connecting piece can be pulled out from the scraping arm.
2. The novel installation structure of the scraping arm and the scraping blade as claimed in claim 1, wherein at least one protruding strip parallel to the length direction of the rubber strip of the scraping blade is respectively arranged on two hinged side surfaces of the hinged part parallel to the length direction of the rubber strip of the scraping blade; the inner side surfaces of the connecting positions of the two side arms of the scraping arm and the hinged part of the connecting piece are respectively provided with at least one groove parallel to the length direction of the scraping piece adhesive tape, and in the inserting process, the convex strips on the two hinged side surfaces of the connecting piece can enable the two side arms of the scraping arm to expand outwards, so that the convex strips can smoothly enter the grooves; after the connecting piece is inserted in place, the convex strips on the two hinged side surfaces of the hinged part fall into the grooves corresponding to the scraping arms; in the process of pulling out, the convex strips on the two hinged side surfaces of the connecting piece can enable the two side arms of the scraping arm to expand outwards, so that the convex strips exit from the grooves; the scraping arm and the connecting piece are matched with each other through the convex strips and the grooves to limit the Y-axis direction.
3. The novel installation structure of the scraper arm and the scraper blade as claimed in claim 2, wherein after the connecting piece is inserted in place, a gap between the buckling boss and the retaining boss is larger than 0mm and smaller than 1 mm.
4. The novel wiper arm and wiper blade mounting structure as defined in claim 3 wherein said snap bosses are taller than said backstop bosses.
5. The novel wiper arm and blade mounting arrangement of claim 4 wherein said rib is in clearance fit with said groove.
6. The novel wiper arm and blade mounting arrangement of claim 5 wherein there are two of said ribs on each of said hinged sides, said two ribs being parallel to each other; the number of the grooves on each side arm is also two, and the two grooves are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121325105.6U CN215590692U (en) | 2021-06-15 | 2021-06-15 | Novel scrape mounting structure of arm and doctor-bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121325105.6U CN215590692U (en) | 2021-06-15 | 2021-06-15 | Novel scrape mounting structure of arm and doctor-bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215590692U true CN215590692U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121325105.6U Active CN215590692U (en) | 2021-06-15 | 2021-06-15 | Novel scrape mounting structure of arm and doctor-bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215590692U (en) |
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2021
- 2021-06-15 CN CN202121325105.6U patent/CN215590692U/en active Active
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