Novel windscreen wiper structure

By using a crank and connecting rod structure driven by a servo motor, the wiper blades are driven to perform rectangular reciprocating motion on the glass surface, solving the problem that traditional wipers cannot provide full coverage. This achieves full-coverage wiping, ensuring clear visibility for the driver and improving driving safety.

CN223658131UActive Publication Date: 2025-12-12HANGCHA GRP +1
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Patent Information

Application Number
CN202422403146.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-12-12
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

Traditional windshield wipers' fan-shaped brushes cannot completely cover rectangular glass, leading to poor driver visibility and safety hazards if not cleaned for extended periods.

Method used

The structure employs a servo motor-driven crank, connecting rod, and wiper blade. The crank drives the connecting rod and slider to slide on the guide rail, and the connecting rod drives the wiper blade to perform rectangular reciprocating motion on the glass surface. Combined with a limit spring and baffle, the opening of the wiper blade is limited to ensure the maximum wiping area.

Benefits of technology

It achieves full coverage of the windshield surface by the wiper blades, preventing rainwater accumulation, ensuring clear visibility for the driver, and improving driving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel windscreen wiper structure, which relates to the technical field of windscreen wipers, and comprises a servo motor and a guide rail, the output end of the servo motor is fixedly connected with a crank, the crank is internally provided with a first rotating groove, the first rotating groove is internally and rotatably connected with a first rotating shaft, and the first rotating shaft is fixedly connected with the guide rail. A connecting rod is rotatably connected to the outer side of the first rotating shaft, a third rotating groove is formed in the connecting rod, a sliding block is rotatably connected to the interior of the third rotating groove, a first sliding groove is formed in the guide rail, the sliding block is slidably connected to the interior of the first sliding groove, and a connecting rod is fixedly connected to one end of the sliding block; the windscreen wiper has the advantages that the surface of an air window can be wiped in a rectangular mode through cooperation of the crank, the first rotating shaft, the connecting rod, the guide rail, the connecting rod, the fourth rotating shaft, the first wiper blade and the second wiper blade.
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Description

Technical Field

[0001] This utility model relates to the field of windshield wiper technology, specifically a novel windshield wiper structure. Background Technology

[0002] Windshield wipers are an important accessory installed on the windshield. Their function is to clear rain, snow, and dust from the windshield that obstruct the view. Therefore, they play an important role in driving safety. Windshield wipers generally include vacuum wipers, electric wipers, and wipers with electronic control units.

[0003] Traditional windshield wiper blades are basically fan-shaped, while glass is mostly rectangular. As a result, there are many areas that the wipers cannot reach after wiping. If these areas are not cleaned for a long time, they will affect the driver's visibility and create safety hazards. Therefore, we have proposed a new type of windshield wiper structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel wiper structure that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel wiper structure includes a servo motor and a guide rail. A crank is fixedly connected to the output end of the servo motor. A first rotating groove is formed inside the crank. A first rotating shaft is rotatably connected inside the first rotating groove. A connecting rod is rotatably connected to the outer side of the first rotating shaft. A third rotating groove is formed inside the connecting rod. A slider is rotatably connected inside the third rotating groove. A first sliding groove is formed inside the guide rail. The slider is slidably connected inside the first sliding groove. A connecting rod is fixedly connected to one end of the slider. A fourth rotating shaft is fixedly connected to one end of the connecting rod. A first wiper blade is rotatably connected to the outer side of the fourth rotating shaft. A second wiper blade is rotatably connected to the outer side of the fourth rotating shaft.

[0006] Preferably, the connecting rod has a second rotating groove inside, and the first rotating shaft is rotatably connected to the inside of the second rotating groove. Through the cooperation of the first rotating shaft, the second rotating groove, and the connecting rod, the crank can drive the first rotating shaft to move, thereby driving the connecting rod to move, thus ensuring the normal operation of the new wiper structure.

[0007] Preferably, a limiting spring is provided between the first wiper blade and the second wiper blade. One end of the limiting spring is fixedly connected to one side of the first wiper blade, and the other end of the limiting spring is fixedly connected to the other side of the second wiper blade. The limiting spring can limit the first wiper blade and the second wiper blade to prevent them from moving upwards due to friction, thus ensuring the normal operation of the first wiper blade and the second wiper blade.

[0008] Preferably, a baffle is fixedly connected to the top of the first wiper blade. The baffle cooperates with the first and second wiper blades. The baffle can limit the first and second wiper blades, thereby preventing them from opening too wide when they move downwards on the windshield surface to wipe the rain, which could damage the limiting spring. At the same time, it can limit the first and second wiper blades to their maximum wiping area, ensuring the wiping effect.

[0009] Preferably, rubber strips are provided on both sides of the first and second wiper blades. The rubber strips on the outer sides of the first and second wiper blades can wipe away the rainwater adhering to the windshield surface, thereby ensuring the cleanliness of the windshield surface.

[0010] Preferably, the rubber strip is made of silicone material. Rubber strips made of silicone have better heat and cold resistance and can maintain good elasticity and wiper performance under extreme weather conditions.

[0011] Preferably, both the first and second wiper blades are made of metal. The first and second wiper blades made of metal have better toughness and can withstand a certain degree of deformation. They will not break even in severe weather or after long-term use.

[0012] This utility model provides a novel wiper structure, which has the following beneficial effects:

[0013] 1. This novel wiper structure, through the interaction of a crank, a first rotating shaft, a connecting rod, a guide rail, a connecting rod, a fourth rotating shaft, and a first and second wiper blades, can drive the first and second wiper blades to reciprocate horizontally across the windshield surface, performing rectangular wiping. A servo motor drives the crank to rotate, which in turn drives the connecting rod to cause a slider to reciprocate linearly within a first sliding groove. This, in turn, drives the connecting rod, the fourth rotating shaft, and the first and second wiper blades to reciprocate up and down together, wiping the windshield surface. When the wiper blades move upward, due to friction, the two wiper blades at both ends shift downward around the central fourth rotating shaft. At this time, the bottom limiting spring is compressed, and the two wiper blades at both ends wipe upward at an obtuse angle, causing rainwater to flow down to both sides and preventing rainwater accumulation from affecting the wiping effect. When the wiper blades move downward, due to friction, the first and second wiper blades shift upward around the central fourth rotating shaft. At this time, the bottom limiting spring is reset, and the baffle limits the first and second wiper blades, causing the wiper blades to wipe horizontally downward, ensuring that the wiping area is maximized. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0015] Fig. 2This is a schematic diagram of the crank-slider mechanism of this utility model.

[0016] Fig. 3 This is a schematic diagram of the unfolded wiper blade of this utility model.

[0017] In the diagram: 1. Servo motor; 2. Crank; 3. First rotating groove; 4. First rotating shaft; 5. Second rotating groove; 6. Connecting rod; 7. Third rotating groove; 8. Slider; 9. Guide rail; 10. First sliding groove; 11. Connecting rod; 12. Fourth rotating shaft; 13. First wiper blade; 14. Second wiper blade; 15. Rubber strip; 16. Limiting spring; 17. Baffle; 18. Windshield. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figs. 1 to 3 This utility model provides a technical solution: a novel wiper structure, including a servo motor 1 and a guide rail 9. A crank 2 is fixedly connected to the output end of the servo motor 1. A first rotating groove 3 is formed inside the crank 2. A first rotating shaft 4 is rotatably connected inside the first rotating groove 3. A connecting rod 6 is rotatably connected to the outer side of the first rotating shaft 4. A third rotating groove 7 is formed inside the connecting rod 6. A slider 8 is rotatably connected inside the third rotating groove 7. A first sliding groove 10 is formed inside the guide rail 9. The slider 8 is slidably connected inside the first sliding groove 10. One end of the slider 8 is fixed... A connecting rod 11 is fixedly connected to one end of the connecting rod 11, and a fourth rotating shaft 12 is fixedly connected to one end of the connecting rod 11. A first wiper blade 13 is rotatably connected to the outside of the fourth rotating shaft 12, and a second wiper blade 14 is rotatably connected to the outside of the fourth rotating shaft 12. A second rotating groove 5 is opened inside the connecting rod 6, and the first rotating shaft 4 is rotatably connected to the inside of the second rotating groove 5. Through the mutual cooperation of the first rotating shaft 4, the second rotating groove 5, and the connecting rod 6, the crank 2 can drive the first rotating shaft 4 to move, thereby driving the connecting rod 6 to move, thus ensuring the normal operation of the new wiper structure.

[0020] A limiting spring 16 is provided between the first wiper blade 13 and the second wiper blade 14. One end of the limiting spring 16 is fixedly connected to one side of the first wiper blade 13, and the other end is fixedly connected to the other side of the second wiper blade 14. The limiting spring 16 can limit the first wiper blade 13 and the second wiper blade 14, preventing them from moving upwards due to friction and ensuring their normal operation. A baffle 17 is fixedly connected to the top of the first wiper blade 13, and the baffle 17 cooperates with the first wiper blade 13 and the second wiper blade 14. The baffle 17 can limit the first wiper blade 13 and the second wiper blade 14, thereby preventing the first wiper blade 13 and the second wiper blade 14 from opening too wide when they move downward on the surface of the windshield 18 to wipe the rain, which would damage the limiting spring 16. At the same time, it can limit the first wiper blade 13 and the second wiper blade 14 at the maximum wiping area, ensuring the wiping effect. Rubber strips 15 are provided on both sides of the first wiper blade 13 and the second wiper blade 14. The rubber strips 15 on the outer sides of the first wiper blade 13 and the second wiper blade 14 can wipe away the rainwater attached to the surface of the windshield 18, thereby keeping the surface of the windshield 18 clean.

[0021] The rubber strip 15 is made of silicone. The silicone rubber strip 15 has better heat and cold resistance and can maintain good elasticity and wiping effect under extreme weather conditions. The first wiper blade 13 and the second wiper blade 14 are both made of metal. The metal first wiper blade 13 and the second wiper blade 14 have better toughness and can withstand a certain degree of deformation. They will not break even in bad weather or after long-term use.

[0022] In summary, this new windshield wiper structure, during use, is activated by a controller, which starts a servo motor 1 installed inside the vehicle body to rotate a crank 2. The crank 2 then moves a first rotating shaft 4, which in turn moves a connecting rod 6. The connecting rod 6 then moves a slider 8 back and forth within a guide rail 9 installed inside the vehicle body. The slider 8 then moves a connecting rod 11 back and forth, thereby causing the first wiper blade 13 and the second wiper blade 14 to move back and forth on the surface of the windshield 18. When the first wiper blade 13 and the second wiper blade 14 move upwards, friction... Under the action of force, the wiper blades at both ends shift downward with the fourth rotating shaft 12 in the middle as the center. At this time, the bottom limiting spring 16 is compressed, and the wiper blades at both ends wipe upward at an obtuse angle, causing rainwater to flow down to both sides and preventing rainwater from accumulating and affecting the wiping effect. When the wiper blades are downward, due to the action of friction, the first wiper blade 13 and the second wiper blade 14 shift upward with the fourth rotating shaft 12 in the middle as the center. At this time, the bottom limiting spring 16 is reset, and the baffle 17 limits the first wiper blade 13 and the second wiper blade 14, so that the wiper blades wipe downward horizontally, ensuring that the wiping area is maximized.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel wiper structure, comprising a servo motor (1) and a guide rail (9), characterized in that: The output end of the servo motor (1) is fixedly connected to a crank (2). The crank (2) has a first rotating groove (3) inside. The first rotating groove (3) is rotatably connected to a first rotating shaft (4). The outside of the first rotating shaft (4) is rotatably connected to a connecting rod (6). The connecting rod (6) has a third rotating groove (7) inside. The third rotating groove (7) is rotatably connected to a slider (8). The guide rail (9) has a first sliding groove (10) inside. The slider (8) is slidably connected to the inside of the first sliding groove (10). One end of the slider (8) is fixedly connected to a connecting rod (11). One end of the connecting rod (11) is fixedly connected to a fourth rotating shaft (12). The outside of the fourth rotating shaft (12) is rotatably connected to a first wiper blade (13). The outside of the fourth rotating shaft (12) is rotatably connected to a second wiper blade (14).

2. The novel wiper structure according to claim 1, characterized in that: The connecting rod (6) has a second rotating groove (5) inside, and the first rotating shaft (4) is rotatably connected to the inside of the second rotating groove (5).

3. The novel wiper structure according to claim 1, characterized in that: A limiting spring (16) is provided between the first wiper blade (13) and the second wiper blade (14). One end of the limiting spring (16) is fixedly connected to one side of the first wiper blade (13), and the other end of the limiting spring (16) is fixedly connected to the other side of the second wiper blade (14).

4. The novel wiper structure according to claim 1, characterized in that: A baffle (17) is fixedly connected to the top of the first wiper blade (13), and the baffle (17) cooperates with the first wiper blade (13) and the second wiper blade (14).

5. A novel wiper structure according to claim 1, characterized in that: Rubber strips (15) are provided on both sides of the first wiper blade (13) and the second wiper blade (14).

6. A novel wiper structure according to claim 5, characterized in that: The adhesive strip (15) is made of silicone.

7. The novel wiper structure according to claim 1, characterized in that: Both the first wiper blade (13) and the second wiper blade (14) are made of metal.