A fixing structure facilitating replacement of a wiper blade

Through the innovative design of the clip and elastic component, the steel sheet is positioned and limited by the L-shaped rod and square block, which solves the problem of inconvenient fixation of the wiper balance plate and realizes tool-free replacement and stable fixation.

CN224409180UActive Publication Date: 2026-06-26NANJING 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
2025-07-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing wiper balance blade fixing structure is not simple enough, requiring the use of tools such as screwdrivers for disassembly and installation, making replacement inconvenient.

Method used

The design employs a clamping sleeve and elastic components, using an L-shaped rod and a square block to lock and limit the steel sheet. Combined with the cooperation of a sliding block and a connecting rod, tool-less replacement is achieved.

Benefits of technology

It enables convenient replacement of wiper blade balances, improving replacement efficiency, and the spring design ensures stability during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to windshield wiper technical field, concretely is a kind of fixed structure that it is convenient for windshield wiper balance piece replacement, including the sleeve, sleeve bottom is fixedly connected with a pair of sheath, a pair of sheath bottom is connected with steel sheet by the fixed structure of setting, the fixed structure includes: the clamping position subassembly, including the square block of sheath bottom fixedly connected, a pair of square holes are set in the steel sheet, the both sides of sheath are respectively equipped with a pair of first rectangular through slot, first rectangular through slot opposite side wall between rotationally connected with L-shaped link by first rotating shaft, the sheath top is provided with the adjusting subassembly for driving a pair of L-shaped link rotation;Elastic component is set on sleeve for promoting adjusting subassembly position, to solve the problem that windshield wiper balance piece is not enough simple and convenient in fixed aspect, generally fixed by screw, so that it when replacing balance piece, generally need to use screwdriver or other tools to disassemble and install screw.
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Description

Technical Field

[0001] This utility model belongs to the field of windshield wiper technology, specifically a fixing structure that facilitates the replacement of windshield wiper balance blades. Background Technology

[0002] Wiper blade balances are also commonly referred to as "spring steel blades" or "intelligent adaptive spring steel blades." In frameless wiper systems, these blades play a crucial role. By evenly distributing pressure, they balance the force on all parts of the wiper blade, resulting in better contact with the windshield and avoiding problems such as incomplete wiping, water streaks, and noise caused by uneven pressure in traditional framed wipers.

[0003] In the existing technology, the wiper balance blade is not easy to fix. It is generally fixed by screws, which means that when replacing the balance blade, screws usually need to be removed and installed by screwdrivers or other tools.

[0004] Therefore, this utility model provides a fixing structure that facilitates the replacement of wiper balance blades. Utility Model Content

[0005] To address the shortcomings of existing technology and solve the problem of the inconvenience of fixing wiper blades, which are generally fixed with screws, it is usually necessary to use a screwdriver or other tools to remove and install the screws when replacing the wiper blades.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A fixing structure for easy replacement of windshield wiper blades, comprising a retainer, a pair of protective sleeves fixedly connected to the bottom of the retainer, and a steel sheet connected to the bottom of the pair of protective sleeves via a fixing structure. The fixing structure includes:

[0007] The positioning assembly includes a square block fixed to the bottom of the sheath, a pair of square holes on the steel sheet, a pair of first rectangular through slots on both sides of the sheath, an L-shaped rod rotatably connected between the opposite sidewalls of the first rectangular through slots via a first rotating shaft, and an adjustment assembly for driving the pair of L-shaped rods to rotate on the top of the sheath.

[0008] The elastic component is located on the sleeve and is used to push the adjustment component to adjust its position.

[0009] Preferably, the adjustment component includes a slide rail fixed to the top of the sheath, a sliding block slidably connected on the slide rail, and a second rectangular through groove on both sides of the sliding block.

[0010] Preferably, a first connecting rod is rotatably connected between the opposite sidewalls of the second rectangular through groove via a second rotating shaft, and a rotating rod is rotatably connected to the bottom of the other end of the first connecting rod, the bottom of which is fixed to the top of the L-shaped rod.

[0011] Preferably, the elastic component includes a groove on the top of the sleeve, a circular block is fixed to the bottom of the groove by a spring, and a pair of third rectangular through slots are provided on the top of the sleeve, and the pair of third rectangular through slots are connected to the groove.

[0012] Preferably, a pair of first concave blocks are fixedly connected to the circular block, and the pair of first concave blocks are symmetrically arranged about the circular block. A second connecting rod is rotatably connected between the opposite sidewalls of the first concave blocks through a third rotating shaft.

[0013] Preferably, a second concave block is fixed to the side of the sliding block near the sleeve, and the end of the second connecting rod away from the first concave block is rotatably connected between the opposite sidewalls of the second concave block via a fourth rotating shaft.

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

[0015] 1. The present invention provides a fixing structure for easy replacement of windshield wiper balance plates. By using a set of L-shaped rods to lock the steel plate in place and a pair of square blocks to limit the steel plate, the fixing effect can be achieved. This solves the problem that in the prior art, windshield wiper balance plates are not easy to fix, and are generally fixed with screws, which usually requires the use of screwdrivers or other tools to remove and install screws when replacing the balance plate.

[0016] 2. The present invention provides a fixing structure for easy replacement of windshield wiper blades. By using a circular block, pressing the circular block during blade replacement simultaneously moves a pair of sliding blocks, and the L-shaped rod provides limiting and fixing for the blade. Through the cooperation of the first concave block, the second connecting rod, and the second concave block, pressing the circular block causes one end of the second connecting rod to press down, while the other end pushes the sliding blocks, significantly improving the convenience of blade replacement. Furthermore, the spring design ensures that even if the circular block experiences slight vibration, it can quickly return to its original position, ensuring stability during use. 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 sheath in this utility model;

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

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

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

[0023] In the diagram: 1. Sleeve; 2. Sheath; 3. Steel sheet; 4. Square block; 5. Square hole; 6. First rectangular through slot; 7. L-shaped rod; 8. Slide rail; 9. Sliding block; 10. Second rectangular through slot; 11. First connecting rod; 12. Rotating rod; 13. Groove; 14. Spring; 15. Circular block; 16. Third rectangular through slot; 17. First concave block; 18. Second connecting rod; 19. Second concave block. 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, a fixing structure for easy replacement of wiper blades according to an embodiment of this utility model includes a sleeve 1, a pair of protective sleeves 2 fixedly attached to the bottom of the sleeve 1, and a steel plate 3 connected to the bottom of the pair of protective sleeves 2 through a fixing structure. The fixing structure includes: a positioning component, including a square block 4 fixedly attached to the bottom of the protective sleeve 2, a pair of square holes 5 opened on the steel plate 3, a pair of first rectangular through slots 6 respectively opened on both sides of the protective sleeve 2, an L-shaped rod 7 rotatably connected between the opposite side walls of the first rectangular through slots 6 through a first rotating shaft, and an adjustment component for driving the pair of L-shaped rods 7 to rotate on the top of the protective sleeve 2; and a spring component, set on the sleeve 1 for pushing the position of the adjustment component.

[0026] During operation, a set of L-shaped rods 7 are used to lock the steel sheet 3 in place, and a pair of square blocks 4 are used to limit the steel sheet 3. This combination achieves the purpose of fixing the steel sheet, thus solving the problem that in the existing technology, the windshield wiper balance is not easy to fix. It is usually fixed with screws, which means that when replacing the balance, screws usually need to be removed and installed with screws using screwdrivers or other tools.

[0027] The adjustment assembly includes a slide rail 8 fixed to the top of the sheath 2, a sliding block 9 slidably connected to the slide rail 8, and a second rectangular through groove 10 on both sides of the sliding block 9.

[0028] The second rectangular through groove 10 is rotatably connected to the opposite side walls by a second rotating shaft. The other end of the first connecting rod 11 is rotatably connected to a rotating rod 12, and the bottom of the rotating rod 12 is fixed to the top of the L-shaped rod 7.

[0029] During operation, by pushing the sliding block 9 to move on the slide rail 8, the rotating rod 12 can be pushed to move by rotating the connecting rod. The rotating rod 12 is fixed to the top of the L-shaped rod 7, so that the pair of L-shaped rods 7 can limit and fix the steel sheet 3, so that it can be stably fixed.

[0030] The elastic component includes a groove 13 on the top of the sleeve 1, a circular block 15 fixed to the bottom of the groove 13 by a spring 14, and a pair of third rectangular through slots 16 on the top of the sleeve 1, which are connected to the groove 13.

[0031] A pair of first concave blocks 17 are fixedly connected to the circular block 15, and the pair of first concave blocks 17 are symmetrically arranged about the circular block 15. A second connecting rod 18 is rotatably connected between the opposite sidewalls of the first concave blocks 17 through a third rotating shaft.

[0032] The sliding block 9 is fixed to the side of the sleeve 1 with a second concave block 19. The end of the second connecting rod 18 away from the first concave block 17 is rotatably connected between the opposite side walls of the second concave block 19 via a fourth rotating shaft.

[0033] During operation, the circular block 15 can be pressed when replacing the steel sheet 3. This simultaneously moves a pair of sliding blocks 9, and the L-shaped rod 7 limits and fixes the steel sheet 3. Through the cooperation of the first concave block 17, the second connecting rod 18, and the second concave block 19, when the circular block 15 is pressed, one end of the second connecting rod 18 presses down, while the other end pushes the sliding block 9 to move, significantly improving the convenience of replacing the steel sheet 3. In addition, the spring 14 ensures that even if the circular block 15 vibrates slightly, it can quickly return to its original position, ensuring stability during use.

[0034] Working principle: A set of L-shaped rods 7 are used to lock the steel plate 3, and a pair of square blocks 4 are used to limit the steel plate 3. By cooperating, the fixed function can be achieved, thereby solving the problem that the existing technology of windshield wiper balance blades is not simple to fix. Generally, they are fixed with screws, which usually requires the use of screwdrivers or other tools to remove and install screws when replacing the balance blades.

[0035] By pushing the sliding block 9 to move on the slide rail 8, the rotating rod 12 can be pushed to move by rotating the connecting rod. The rotating rod 12 is fixed to the top of the L-shaped rod 7. This combination allows the pair of L-shaped rods 7 to limit and fix the steel sheet 3, making it stable.

[0036] The circular block 15 allows for easy replacement of the steel sheet 3 by pressing it. This simultaneously moves a pair of sliding blocks 9, and the L-shaped rod 7 limits and fixes the steel sheet 3 in place. Through the cooperation of the first concave block 17, the second connecting rod 18, and the second concave block 19, pressing the circular block 15 causes one end of the second connecting rod 18 to press down, while the other end pushes the sliding blocks 9, significantly improving the convenience of steel sheet 3 replacement. Furthermore, the spring 14 ensures that even if the circular block 15 vibrates slightly, it can quickly return to its original position, ensuring stability during use.

[0037] 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.

[0038] 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.

[0039] 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 fixing structure for facilitating replacement of a wiper blade, comprising a sleeve (1), characterized in that: The bottom of the sleeve (1) is fixedly connected to a pair of protective sleeves (2), and the bottom of the pair of protective sleeves (2) is connected to a steel plate (3) through a fixed structure. The fixed structure includes: The positioning assembly includes a square block (4) fixed to the bottom of the sleeve (2), a pair of square holes (5) on the steel sheet (3), a pair of first rectangular through slots (6) on both sides of the sleeve (2), an L-shaped rod (7) rotatably connected between the opposite side walls of the first rectangular through slots (6) through a first rotating shaft, and an adjustment assembly for driving the pair of L-shaped rods (7) to rotate on the top of the sleeve (2). An elastic component is provided on the sleeve (1) to push the position of the adjustment component.

2. The fixing structure for facilitating replacement of a wiper blade tab according to claim 1, characterized in that: The adjustment assembly includes a slide rail (8) fixed to the top of the sleeve (2), and a sliding block (9) is slidably connected on the slide rail (8). A second rectangular through groove (10) is provided on both sides of the sliding block (9).

3. The fixing structure for facilitating replacement of a wiper blade tab according to claim 2, characterized in that: The second rectangular through groove (10) is rotatably connected to the opposite sidewalls by a second rotating shaft with a first connecting rod (11). The bottom of the other end of the first connecting rod (11) is rotatably connected to a rotating rod (12), and the bottom of the rotating rod (12) is fixed to the top of the L-shaped rod (7).

4. The fixing structure for easy replacement of wiper blade balances according to claim 2, characterized in that: The elastic component includes a groove (13) on the top of the sleeve (1), and a circular block (15) is fixed to the bottom of the groove (13) by a spring (14). A pair of third rectangular through slots (16) are provided on the top of the sleeve (1), and the pair of third rectangular through slots (16) are connected to the groove (13).

5. The fixing structure for easy replacement of wiper blade balances according to claim 4, characterized in that: A pair of first concave blocks (17) are fixedly connected to the circular block (15), and the pair of first concave blocks (17) are symmetrically arranged about the circular block (15). A second connecting rod (18) is rotatably connected between the opposite sidewalls of the first concave blocks (17) through a third rotating shaft.

6. The fixing structure for easy replacement of wiper blade balances according to claim 5, characterized in that: The sliding block (9) is fixed to the side of the sleeve (1) with a second concave block (19), and the end of the second connecting rod (18) away from the first concave block (17) is rotatably connected between the opposite side walls of the second concave block (19) through a fourth rotating shaft.