A new type of wiper extension arm for automobiles

By designing an adjustable wiper extension arm, the problem of limited wiping range caused by the fixed length of traditional wipers is solved, achieving clear visibility and convenient maintenance in different vehicle models and conditions, and improving driving safety.

CN224311728UActive Publication Date: 2026-06-02NANJING EASY-WIN AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING EASY-WIN AUTO PARTS CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional windshield wiper extension arms are of a fixed length and cannot be adjusted, resulting in a limited wiping range on different vehicle models and under different driving conditions, which affects driving safety and cannot ensure clear visibility for the driver.

Method used

A novel wiper extension arm, comprising a fixed wall and an adjustment assembly, has been designed. The length can be adjusted by moving the sliding block and the sliding arm via an electric actuator. A sealing plate prevents dust and debris from entering and facilitates the replacement of the sliding arm.

Benefits of technology

It enables adaptive adjustment of the windshield wipers for different vehicle models and driving conditions, ensuring clear visibility for the driver and facilitating quick replacement of the sliding arms, thereby improving safety and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224311728U_ABST
    Figure CN224311728U_ABST
Patent Text Reader

Abstract

This utility model belongs to the field of windshield wiper technology, specifically a novel windshield wiper extension arm for automobiles. It includes a fixed wall with a wiper mechanism mounted on it. The wiper mechanism includes: an extension component with a sliding groove at the bottom of the fixed wall, a sliding block slidably connected within the sliding groove, a fixed groove on the side wall of the sliding block, and a sliding arm connected to the fixed groove via a fixed component. One end of the sliding arm is fixedly connected to a windshield wiper. An adjustment component is located at the top of the fixed wall for adjusting the position of the sliding block. This addresses the problem that traditional windshield wiper extension arms are typically of a fixed length and cannot be adjusted, resulting in limited wiping range under different vehicle models and driving conditions, affecting driving safety and failing to ensure clear driver visibility.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of windshield wiper technology, specifically a novel windshield wiper extension arm for automobiles. Background Technology

[0002] A windshield wiper is a cleaning device installed on the windshield of a car to remove rainwater and debris from the glass in rainy or inclement weather, ensuring the driver has a clear view. It mainly consists of a motor, a linkage mechanism, and a wiper blade. The motor drives the linkage mechanism to swing, causing the wiper blade to move back and forth across the glass surface, thus achieving the wiping function.

[0003] In existing technologies, traditional windshield wiper extension arms are usually of a fixed length and cannot be adjusted. This results in a limited wiping range for windshield wipers under different vehicle models and driving conditions, affecting driving safety and failing to ensure clear visibility for the driver.

[0004] Therefore, this utility model provides a novel windshield wiper extension arm for automobiles. Utility Model Content

[0005] To address the shortcomings of existing technology and solve the problem that traditional windshield wiper extension arms are usually of a fixed length and cannot be adjusted, resulting in limited wiping range of the wipers under different vehicle models and driving conditions, affecting driving safety and failing to ensure clear driver visibility.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A novel windshield wiper extension arm for automobiles, comprising a fixed wall, on which a wiper mechanism is provided, the wiper mechanism comprising:

[0007] The extension component includes a sliding groove at the bottom of a fixed wall, a sliding block slidably connected in the sliding groove, a fixed groove on the side wall of the sliding block, a sliding arm connected in the fixed groove through a fixed component, and a windshield wiper fixedly connected to one end of the sliding arm.

[0008] An adjustment component, located at the top of the fixed wall, is used to adjust the position of the sliding block.

[0009] Preferably, the adjustment component includes a rectangular through groove opened at the top of the fixed wall, and a first fixed block is fixedly connected to the top of the sliding block, and the first fixed block is slidably connected in the rectangular through groove.

[0010] Preferably, a second fixing block is fixedly connected to the top of the fixing wall, and an electric actuator is fixedly connected to the side wall of the second fixing block. The telescopic end of the electric actuator is fixedly connected to the side wall of the first fixing block.

[0011] Preferably, a closed groove is provided at one end of the fixed wall, and a closed plate is fixedly connected to both sides of the first fixed block, and a pair of closed plates are slidably connected in the closed groove.

[0012] Preferably, the fixing component includes a pair of locking holes respectively opened on both sides of the sliding block, a rectangular block is fixedly connected to one end of the sliding arm near the sliding block, and grooves are opened on both sides of the rectangular block, with locking blocks fixed to the bottom of the grooves by a first spring.

[0013] Preferably, square holes are provided on both sides of the fixed wall, and concave blocks are fixedly connected to both sides of the fixed wall. A guide rod is slidably connected to the concave block through a guide hole. A pressing block is fixedly connected to one end of the guide rod near the fixed wall. The pressing block is connected to the concave block through a second spring.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The novel windshield wiper extension arm for automobiles described in this utility model can move a sliding block by setting an adjustment component, thereby moving a sliding arm connected to a fixed component. This solves the problem that in the prior art, traditional windshield wiper extension arms are usually of a fixed length and cannot be adjusted, resulting in a limited wiping range of the wiper under different vehicle models and driving conditions, affecting driving safety and failing to ensure clear visibility for the driver.

[0016] 2. The novel wiper extension arm for automobiles described in this utility model allows the extrusion block to pass through the square hole and compress the locking block by simultaneously pressing a pair of guide rods. This causes the locking block to retract under push, thereby releasing the locking block's fixation on the rectangular block and allowing the sliding arm to be removed for replacement. This facilitates quick replacement after the sliding arm is damaged. Furthermore, during installation, it can be automatically fixed simply by inserting it into the fixing slot. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the sliding block in this utility model;

[0020] Figure 3 This is a schematic diagram of the rectangular block in this utility model;

[0021] Figure 4 This is a schematic diagram of the enclosed plate in this utility model;

[0022] Figure 5 yes Figure 1 Enlarged view of A in the middle;

[0023] In the diagram: 1. Fixed wall; 2. Sliding groove; 3. Sliding block; 4. Fixed groove; 5. Sliding arm; 6. Wiper; 7. Rectangular through groove; 8. First fixed block; 9. Second fixed block; 10. Electric actuator; 11. Enclosed groove; 12. Enclosed plate; 13. Locking hole; 14. Rectangular block; 15. Groove; 16. First spring; 17. Locking block; 18. Square hole; 19. Concave block; 20. Guide rod; 21. Pressing block; 22. Second spring. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figures 1 to 5 As shown in the figure, a novel windshield wiper extension arm for automobiles according to an embodiment of the present invention includes a fixed wall 1, on which a wiper mechanism is provided. The wiper mechanism includes: an extension component, including a sliding groove 2 opened at the bottom of the fixed wall 1, a sliding block 3 slidably connected in the sliding groove 2, a fixed groove 4 opened on the side wall of the sliding block 3, a sliding arm 5 connected in the fixed groove 4 through a fixed component, and a wiper 6 fixedly connected to one end of the sliding arm 5; and an adjustment component, which is provided at the top of the fixed wall 1 for adjusting the position of the sliding block 3.

[0026] During operation, the sliding block 3 is moved by the set adjustment component, which in turn moves the sliding arm 5 connected by the fixed component. This solves the problem that in the existing technology, the extension arm of the traditional windshield wiper 6 is usually of a fixed length and cannot be adjusted, resulting in a limited wiping range of the windshield wiper 6 under different vehicle models and driving conditions, which affects driving safety and cannot ensure clear visibility for the driver.

[0027] The adjustment component includes a rectangular through groove 7 opened at the top of the fixed wall 1, and a first fixed block 8 fixedly connected to the top of the sliding block 3, and the first fixed block 8 is slidably connected in the rectangular through groove 7.

[0028] A second fixing block 9 is fixedly connected to the top of the fixing wall 1, and an electric push rod 10 is fixedly connected to the side wall of the second fixing block 9. The telescopic end of the electric push rod 10 is fixedly connected to the side wall of the first fixing block 8.

[0029] During operation, the electric actuator 10 drives the first fixed block 8 to move, which in turn drives the sliding block 3 to move, thereby enabling the sliding arm 5 connected by the fixed component to move, thus improving its adaptability.

[0030] A closed groove 11 is provided at one end of the fixed wall 1, and a closed plate 12 is fixedly connected to both sides of the first fixed block 8, and a pair of closed plates 12 are slidably connected in the closed groove 11.

[0031] During operation, a pair of sealing plates 12 move together with the first fixed block 8 and are slidably connected in the sealing groove 11. This allows the rectangular through groove 7 to be sealed regardless of the position of the sliding arm 5, preventing dust and debris from entering and affecting the sliding.

[0032] The fixing component includes a pair of locking holes 13 opened on both sides of the sliding block 3, and a rectangular block 14 fixed to one end of the sliding arm 5 near the sliding block 3. The rectangular block 14 has grooves 15 on both sides, and a locking block 17 is fixed to the bottom of the groove 15 by a first spring 16.

[0033] During operation, a locking block 17 is fixed to the bottom of the groove 15 by a first spring 16. When the rectangular block 14 is inserted into the fixing groove 4, the locking block 17 is pushed into the locking hole 13 by the elastic force of the first spring 16 for fixing.

[0034] Square holes 18 are provided on both sides of the fixed wall 1, and concave blocks 19 are fixedly connected to both sides of the fixed wall 1. A guide rod 20 is slidably connected to the concave block 19 through a guide hole. A pressing block 21 is fixedly connected to one end of the guide rod 20 near the fixed wall 1. The pressing block 21 is connected to the concave block 19 through a second spring 22.

[0035] During operation, by pressing a pair of guide rods 20 simultaneously, the compression block 21 can pass through the square hole 18 and compress the locking block 17, causing it to retract under the push, thereby releasing the locking block 17 from fixing the rectangular block 14, allowing the sliding arm 5 to be removed and replaced. This facilitates quick replacement after the sliding arm 5 is damaged. During installation, it can be automatically fixed simply by inserting it into the fixing slot 4.

[0036] Working principle: During operation, the sliding block 3 is moved by the set adjustment component, which in turn moves the sliding arm 5 connected by the fixed component. This solves the problem that in the existing technology, the extension arm of the traditional windshield wiper 6 is usually of a fixed length and cannot be adjusted. As a result, the wiping range of the windshield wiper 6 is limited under different vehicle models and driving conditions, which affects driving safety and cannot ensure clear visibility for the driver.

[0037] By moving the first fixed block 8 through the electric push rod 10, the sliding block 3 can be moved through the first fixed block 8, thereby moving the sliding arm 5 connected by the fixed component, thus improving its adaptability.

[0038] By having a pair of sealing plates 12 move together with the first fixed block 8 and slide in the sealing groove 11, the rectangular through groove 7 can be sealed no matter where the sliding arm 5 is located, preventing dust and debris from entering and affecting the sliding.

[0039] A locking block 17 is fixed to the bottom of the groove 15 by a first spring 16. When the rectangular block 14 is inserted into the fixing groove 4, the locking block 17 is pushed into the locking hole 13 by the elastic force of the first spring 16 for fixing.

[0040] By pressing a pair of guide rods 20 simultaneously, the compression block 21 can pass through the square hole 18 and compress the locking block 17, causing it to retract under the push. This releases the locking block 17 from fixing the rectangular block 14, allowing the sliding arm 5 to be removed and replaced. This facilitates quick replacement of the sliding arm 5 after it is damaged. During installation, it can be automatically fixed simply by inserting it into the fixing slot 4.

[0041] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation 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 limiting the scope of protection of this utility model.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of wiper extension arm for automobiles comprising a fixed wall (1), characterized in that: A wiper mechanism is provided on the fixed wall (1), and the wiper mechanism includes: The extension component includes a sliding groove (2) opened at the bottom of the fixed wall (1), a sliding block (3) is slidably connected in the sliding groove (2), a fixed groove (4) is opened on the side wall of the sliding block (3), a sliding arm (5) is connected in the fixed groove (4) through a fixed component, and a windshield wiper (6) is fixedly connected to one end of the sliding arm (5). An adjustment component is set on top of the fixed wall (1) to adjust the position of the sliding block (3).

2. A new type of wiper extension arm for automobiles as claimed in claim 1, wherein: The adjustment assembly includes a rectangular through groove (7) opened at the top of the fixed wall (1), and a first fixed block (8) is fixedly connected to the top of the sliding block (3), and the first fixed block (8) is slidably connected in the rectangular through groove (7).

3. A new type of wiper extension arm for automobiles as claimed in claim 2, wherein: The top of the fixed wall (1) is fixedly connected to a second fixed block (9), and the side wall of the second fixed block (9) is fixedly connected to an electric push rod (10). The telescopic end of the electric push rod (10) is fixedly connected to the side wall of the first fixed block (8).

4. A new type of wiper extension arm for automobiles as claimed in claim 2, wherein: The fixed wall (1) has a closed groove (11) at one end, and the first fixed block (8) has a closed plate (12) fixed on both sides, and the pair of closed plates (12) are slidably connected in the closed groove (11).

5. A new type of wiper extension arm for automobiles as claimed in claim 1, wherein: The fixing component includes a pair of locking holes (13) opened on both sides of the sliding block (3), and a rectangular block (14) fixed to one end of the sliding arm (5) near the sliding block (3). The rectangular block (14) has grooves (15) on both sides, and a locking block (17) is fixed to the bottom of the groove (15) by a first spring (16).

6. A new type of wiper extension arm for automobiles as claimed in claim 1, wherein: Square holes (18) are provided on both sides of the fixed wall (1). Concave blocks (19) are fixedly connected to both sides of the fixed wall (1). A guide rod (20) is slidably connected to the concave block (19) through a guide hole. A pressing block (21) is fixedly connected to one end of the guide rod (20) near the fixed wall (1). The pressing block (21) is connected to the concave block (19) through a second spring (22).