Connecting structure of windscreen wiper and windscreen wiper arm
By introducing a snap-fit design of wiper arm end plate and non-metallic materials into the connection structure between the wiper and the wiper arm, the problems of complex and easily damaged traditional connection structures are solved, achieving a high-efficiency and low-cost connection effect.
Patent Information
- Application Number
- CN202520094932.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The connection structure between traditional windshield wipers and wiper arms is complex and can easily cause damage to the surface of the parts.
By introducing a wiper arm end plate and designing a unique connection structure, the connection is achieved by using a snap-fit method between non-metallic materials such as plastic parts and by the cooperation of positioning protrusions and grooves.
It improves assembly efficiency and quality, avoids or reduces damage to parts surfaces, simplifies the process, and reduces costs.
Smart Images
Figure CN223764405U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to a connection structure between a windshield wiper and a wiper arm. Background Technology
[0002] Windshield wipers are an essential accessory for automobiles, installed on the front and / or rear windows. When the windshield or rear window is obscured by rain, snow, dust, or other debris, wiping it away with the wipers allows occupants to see the outside environment. For drivers, the importance of windshield wipers is self-evident; their performance directly affects driving safety.
[0003] The traditional method of connecting the wiper arm and wiper blade involves first assembling the wiper assembly with the connector, and then assembling the wiper arm with the connector. However, the existing connection structure is complex. Since the wiper arm is a metal part and the connector is generally a plastic part, the difference in materials between the two parts can cause scratches on the snap-fit surface during the fastening process, resulting in cosmetic problems. Utility Model Content
[0004] This utility model provides a connection structure between a windshield wiper and a wiper arm to solve the technical problems of complex existing connection structures between windshield wipers and wiper arms, which can easily cause damage to the surface of parts during installation.
[0005] According to the connection structure between the wiper and the wiper arm provided in the embodiment of this utility model, the connection structure between the wiper and the wiper arm includes:
[0006] The wiper arm has an inverted U-shaped cross-section at its free end. The free end includes a horizontal part and two support parts. The angles between each support part and the horizontal part may be the same or different. A first positioning protrusion or a first positioning groove is provided on the horizontal part.
[0007] Wiper arm end plate, the wiper arm end plate is engaged with the wiper arm, the wiper arm end plate is provided with a second positioning groove or a second positioning protrusion, the first positioning protrusion is engaged with the second positioning groove for positioning or the first positioning groove is engaged with the second positioning protrusion for positioning;
[0008] A windshield wiper, the windshield wiper including a wiper blade assembly and a connector, the connector being connected to the wiper blade assembly, and the wiper arm end plate being engaged with the connector.
[0009] In some embodiments, the portion of the wiper arm end plate that adapts to the free end of the wiper arm includes at least an inverted U-shaped structure, and the inverted U-shape of the free end of the wiper arm adapts to the inverted U-shaped structure.
[0010] In some embodiments, the wiper arm end plate extends beyond the free end of the wiper arm.
[0011] In some embodiments, the connector is provided with a third positioning groove or a third positioning protrusion, and the end of the wiper arm end plate is provided with a fourth positioning protrusion or a fourth positioning groove, wherein the third positioning groove engages with the fourth positioning protrusion for positioning, or the third positioning protrusion engages with the fourth positioning groove for positioning.
[0012] In some embodiments, the first positioning protrusion, the second positioning protrusion, the third positioning protrusion, and the fourth positioning protrusion are respectively I-shaped or square-shaped, and the first positioning groove, the second positioning groove, the third positioning groove, and the fourth positioning groove are square through grooves or square blind grooves.
[0013] In some embodiments, the wiper arm end plate and the connector are made of non-metallic materials.
[0014] In some embodiments, the wiper arm end plate and the connector are both plastic parts.
[0015] In some embodiments, a water pipe receiving cavity is provided on one side of the inverted U-shaped structure of the wiper arm end plate for accommodating a water pipe for conveying glass cleaning fluid.
[0016] In some embodiments, the wiper arm end plate is also provided with reinforcing ribs or reinforcing ribs.
[0017] In some embodiments, the scraper assembly includes two brackets, two springs, an adhesive strip, and two end caps. The two brackets are respectively engaged on both sides of the connector, the adhesive strip is engaged with the inner grooves of the brackets by the two springs, and the two end caps are fastened to the two ends of the scraper assembly.
[0018] Compared with the prior art, the embodiments of this utility model have the following advantages:
[0019] The wiper and wiper arm connection structure provided in this embodiment of the utility model introduces a wiper arm end plate and designs a unique connection structure, which ensures assembly efficiency and quality, and avoids or reduces damage to the wiper arm end plate and connector surface during installation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the connection structure between the windshield wiper and the wiper arm provided in some embodiments of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure of a wiper arm provided in some embodiments of this utility model;
[0022] Figure 3This is a schematic diagram of the structure of the wiper arm end plate provided in some embodiments of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the wiper arm and wiper arm end plate after they are engaged according to some embodiments of this utility model;
[0024] Figure 5 yes Figure 4 A schematic diagram of the AA direction in the middle;
[0025] Figure 6 yes Figure 4 A schematic diagram of the structure viewed from below;
[0026] Figure 7 This is a schematic diagram of the connector structure provided in some embodiments of this utility model;
[0027] Figure 8 yes Figure 7 A schematic diagram of the horizontal structure of the DD;
[0028] Figure 9 yes Figure 7 A longitudinal cross-sectional view of the connector in the connected state;
[0029] Figure 10 This is a schematic diagram of the connection between the wiper assembly and the connector provided in some embodiments of this utility model;
[0030] Figure 11 yes Figure 10 Exploded view;
[0031] Figure 12 yes Figure 10 A schematic diagram of the EE direction in the diagram;
[0032] Figure 13 yes Figure 10 A schematic diagram of the FF direction in the diagram.
[0033] Attached image annotations:
[0034] 1. Wiper arm, 11. Free end, 12. Horizontal part, 13. Support part, 14. First positioning groove, 15. Connecting end; 2. Wiper arm end plate, 21. Inverted U-shaped structure, 22. Water pipe receiving cavity, 23. Second positioning protrusion, 24. Fourth positioning groove, 25. Reinforcing rib, 26. Lock, 27. Connecting end; 3. Connector, 31. Connector body, 32. Third positioning protrusion, 33. Inner groove; 4. Wiper assembly, 41. Bracket, 42. Spring, 43. Rubber strip, 44. End cap. Detailed Implementation
[0035] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0036] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0038] In the description of this utility model, the reference to terms such as "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model.
[0039] See Figure 1-13 As shown, an embodiment of this utility model discloses a connection structure between a windshield wiper and a wiper arm, comprising:
[0040] Wiper arm 1, according to Figure 2 and Figure 5 As shown, the cross-section of the free end 11 of the wiper arm is an inverted U-shape. The free end, i.e. the inverted U-shape mentioned above, includes a horizontal part 12 and two support parts 13. The angle between each support part 13 and the horizontal part 12 may be the same or different. The horizontal part 12 is provided with a first positioning protrusion or a first positioning groove 14.
[0041] Wiper arm end plate 2, which is engaged with wiper arm 1, is provided with a second positioning groove or a second positioning protrusion 23. The first positioning protrusion is engaged with the second positioning groove for positioning, or the first positioning groove 14 is engaged with the second positioning protrusion 23 for positioning. It should be noted that the shape and size of the above-mentioned protrusion and groove are mutually matched, and the two are connected together by engagement, and the engagement needs to ensure good connection strength.
[0042] Windshield wipers, combined Figure 9-12As shown, the windshield wiper includes a wiper blade assembly 4 and a connector 3. The connector 3 is connected to the wiper blade assembly 4, and the wiper arm end plate 2 is engaged with the connector 3. The wiper blade assembly has a rubber strip 43 for scraping foreign objects on the windshield or rear windshield of the vehicle. The connector 3 is used to connect the wiper blade assembly 4 and the wiper arm or wiper arm end plate.
[0043] The connection structure between the wiper and the wiper arm 1 provided in this embodiment of the utility model, in particular, introduces the wiper arm end plate 2 and designs the specific connection structure as described above, which ensures the efficiency and quality of assembly and avoids damage to the wiper arm end plate and connector surface during installation.
[0044] Combination Figure 3 , Figure 5 and Figure 6 As shown, the portion of the wiper arm end plate that is adapted to the free end of the wiper arm includes at least an inverted U-shaped structure 21, and the free end of the wiper arm is adapted to the inverted U-shaped structure.
[0045] Specifically, in combination Figure 5 and Figure 6 As shown, the ends of the wiper arm 1 and wiper arm end plate 2 that connect to the connector 3 (free end 11) each have an inverted U-shape (structure). The two inverted U-shapes (structures) engage with each other. The bottom end of the inverted U-shape structure of the wiper arm end plate 2 has a latch 26 to facilitate locking them together. It should be noted that the wiper arm also has a connecting end 15 at the end away from the free end 11, which is connected to the driver that drives the wiper arm to move.
[0046] According to one embodiment of the present invention, the connection structure mainly utilizes the wiper arm end plate 2 to connect with the connector 3. At this time, the wiper arm end plate 2 extends beyond the free end of the wiper arm 1. That is, at the free end of the wiper arm 1, the wiper arm end plate 2 is longer than the wiper arm 1, thereby utilizing the extended end of the wiper arm end plate 2 to connect with the connector 3.
[0047] In specific connection methods, combined with Figure 6 and Figure 7 As shown, the connector is provided with a third positioning groove or a third positioning protrusion 32, and the end of the wiper arm end plate is provided with a fourth positioning protrusion or a fourth positioning groove 24. The third positioning groove and the fourth positioning protrusion are engaged for positioning, or the third positioning protrusion 32 and the fourth positioning groove 24 are engaged for positioning. Optionally, the connecting end 27 of the wiper arm end plate is also snap-fitted to the wiper arm 1.
[0048] It should be noted that the shape and structure of the protrusions and grooves are not specifically limited in this utility model. Any protrusions, grooves or similar structures that can achieve the above functions are within the protection scope of this utility model.
[0049] In some optional embodiments, the first positioning protrusion, the second positioning protrusion 23, the third positioning protrusion 32 and the fourth positioning protrusion are respectively I-shaped or square-shaped, and the first positioning groove 14, the second positioning groove, the third positioning groove and the fourth positioning groove 24 are square through grooves or square blind grooves, and the size of the above-mentioned I-shaped or square shape is adapted to the size of the above-mentioned through grooves or blind grooves. The I-shaped design reduces the possibility of surface damage while ensuring connection strength.
[0050] It should be emphasized that the wiper arm end plate 2 and the connector 3 described in the embodiments of this utility model are made of non-metallic materials, including but not limited to polymer materials, wood or fiber materials.
[0051] In some optional embodiments, the wiper arm end plate 2 and the connector 3 are both plastic parts, which can be formed by extrusion, injection molding, calendering, blow molding, thermoforming, compression molding, transfer molding, etc.
[0052] In addition, according to Figure 6 As shown, a water pipe receiving cavity 22 is provided on one side of the inverted U-shaped structure 21 of the wiper arm end plate 2, which is used to contain the water pipe for conveying glass washing liquid for the front or rear windshield.
[0053] Optionally, the wiper arm end plate is further provided with reinforcing ribs 25 or reinforcing ribs, depending on... Figure 6 As shown, the reinforcing rib 25 is disposed on the inner side of the wiper arm end plate, and is specifically disposed within the water pipe receiving cavity 22.
[0054] Figure 7 , Figure 8 and Figure 9 The specific structure of the connector is shown. The connector 3 includes a connector body 31 and a third positioning protrusion 32 disposed on the connector body 31. The connector 3 also includes an inner groove 33 located at its bottom, which is used to accommodate and connect the scraper assembly 4.
[0055] Specifically, according to Figure 9 The longitudinal cross-sectional view of the connector shown also illustrates the positional relationship between the wiper arm 1, the wiper arm end plate 2, and the connector 3 in the connected state according to one embodiment.
[0056] According to some embodiments of this utility model, see Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the scraper assembly 4 includes two brackets 41, two springs 42, a rubber strip 43, and two end caps 44. The two brackets 41 are respectively engaged on both sides of the connector 3. The rubber strip 43 is engaged on the inner groove 33 of the bracket or the connector by the two springs 42. The two end caps 44 are fastened to the two ends of the scraper assembly 4.
[0057] In summary, the installation steps of this utility model embodiment include: first, connecting the wiper assembly 4 and the connector 3 together by snapping them together; then, snapping the wiper arm 1 and the wiper arm end plate 2 together; and finally, connecting the wiper arm end plate 2 and the connector 3 together, thereby completing the installation of the wiper.
[0058] Compared with the existing connection structure between the wiper and the wiper arm, this utility model has the following advantages:
[0059] First, this utility model introduces a wiper arm end plate and designs a unique connection structure, which ensures assembly efficiency and quality and avoids surface damage to wiper arm end plates and connectors during installation.
[0060] Furthermore, the connection structure disclosed in the embodiments of this utility model uses the interlocking of non-metallic parts, especially plastic parts, to create a flexible snap-fit structure with adjustable snap-fit strength. The surface quality of the parts is guaranteed by the mold, the process is simple, and the cost is saved. At the same time, it avoids or reduces the problem of surface scratches during assembly.
[0061] Furthermore, the embodiments of this utility model optimize the connection and fit structure between the wiper and the wiper arm, reducing or avoiding the risk of scratches while ensuring the snap-fit strength and simplifying the process.
[0062] It should be noted that although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims of the present invention.
Claims
1. A connection structure of a wiper blade and a wiper arm, characterized by, The connecting structure of the wiper and the wiper arm comprises: The wiper arm, the cross section of the free end of the wiper arm is inverted U-shaped, the free end comprises a horizontal part and two support parts, the included angle of each support part with the horizontal part is the same or different, the horizontal part is provided with a first positioning protrusion or a first positioning groove; The wiper arm end plate is clamped on the wiper arm, the wiper arm end plate is provided with a second positioning groove or a second positioning protrusion, the first positioning protrusion is clamped and positioned with the second positioning groove or the first positioning groove is clamped and positioned with the second positioning protrusion; The wiper comprises a wiper blade assembly and a connector, the connector is connected to the wiper blade assembly, and the wiper arm end plate is clamped on the connector.
2. The connection structure of the rain wiper and the wiper arm according to claim 1, characterized in that, The part of the wiper arm end plate matched with the free end of the wiper arm comprises at least an inverted U-shaped structure, the inverted U-shaped structure is matched with the inverted U-shaped of the free end of the wiper arm.
3. The connection structure of the rain wiper and the wiper arm according to claim 1, characterized in that, The wiper arm end plate extends from the free end of the wiper arm.
4. The connection structure of the rain wiper and the wiper arm according to claim 1, characterized by The connector is provided with a third positioning groove or a third positioning protrusion, the end of the wiper arm end plate is provided with a fourth positioning protrusion or a fourth positioning groove, the third positioning groove is clamped and positioned with the fourth positioning protrusion or the third positioning protrusion is clamped and positioned with the fourth positioning groove.
5. The connection structure of the rain wiper and the wiper arm according to claim 4, characterized in that, The first positioning protrusion, the second positioning protrusion, the third positioning protrusion and the fourth positioning protrusion are respectively I-shaped or square-shaped, and the first positioning groove, the second positioning groove, the third positioning groove and the fourth positioning groove are square-shaped through grooves or square-shaped blind grooves.
6. The connection structure of the rain wiper and the wiper arm according to any one of claims 1 to 5, characterized in that, The materials of the wiper arm end plate and the connector are respectively non-metallic materials.
7. The connection structure of the rain wiper and the wiper arm according to claim 6, characterized in that, The wiper arm end plate and the connector are respectively plastic parts.
8. The connection structure of the rain wiper and the wiper arm according to any one of claims 1 to 5, characterized in that, One side of the inverted U-shaped structure of the wiper arm end plate is provided with a water pipe accommodating cavity for accommodating a water delivery pipe for delivering glass washing liquid.
9. The connection structure of the rain wiper and the wiper arm according to any one of claims 1 to 5, characterized in that, The wiper arm end plate is further provided with reinforcing ribs or reinforcing ribs.
10. The connection structure of the rain wiper and the wiper arm according to any one of claims 1 to 5, characterized in that, The wiper blade assembly comprises two brackets, two spring sheets, a rubber strip and two end covers, the two brackets are respectively clamped on the two sides of the connector, the rubber strip is clamped on the inner recess of the bracket through the two spring sheets, and the two end covers are buckled on the two ends of the wiper blade assembly.