Windscreen wiper rubber strip mounting mechanism

Abstract

The invention discloses a windscreen wiper rubber strip mounting mechanism which comprises an elastic steel sheet and a plurality of sets of fixers. The fixer comprises fixing claws which are arranged in pairs, and the upper end of each fixing claw is provided with an upper abutting table and a lower abutting table which are arranged in parallel; the lower end of the fixing claw is provided with a claw part for fixing a windscreen wiper rubber strip; according to the windscreen wiper rubber strip mounting mechanism, the windscreen wiper rubber strip and the elastic steel sheet are assembled and fixed through the fixing device, each pair of fixing claws of the fixing device are matched and fixed through the upper abutting table and the lower abutting table, meanwhile, an integrated structure is formed through the welding technology, it is ensured that the integrity of the windscreen wiper rubber strip is higher after connection, and the installation efficiency of the windscreen wiper rubber strip is improved. The windscreen wiper rubber strip can be kept stable after being used for a long time, the elastic force of the elastic steel sheet on the windscreen wiper rubber strip is more uniform, and the water wiping effect is better when the windscreen wiper is used.

Description

Technical Field

[0001] The present invention relates to the technical field of windshield wipers, and in particular to a windshield wiper rubber strip mounting mechanism. Background Art

[0002] A windshield wiper is a tool used to simply clean the windshield of a motor vehicle to prevent rain and other debris from obstructing vision. The elastic steel sheet in the wiper allows the wiper strip to adhere tightly to the window glass, ensuring effective cleaning. Existing wipers often have a narrow slit machined into the middle of the sheet, with the wiper strip clamped within it. This requires a custom stamping die, which is expensive to manufacture and wastes the steel material. Furthermore, stress concentration occurs in the punched area of ​​the sheet, resulting in unconcentrated elastic force applied by the sheet to the strip.

[0003] Chinese invention patent CN101977800B discloses a wiper blade in which the ends of spring strips are connected by a bridge member to form a modular steel sheet. The bridge member is secured to the elastic steel sheet by a support arm below an angled member or a hook at the free end of the arm. However, this secure fixation is insufficient, and the bridge member can easily fall off during the intermediate process, causing the elastic steel sheet to scatter and hindering subsequent assembly. There is only one fixed point between the bridge member and each elastic steel sheet, which easily causes wobble between the two, causing the wiper blade to wobble during operation, affecting cleaning effectiveness.

[0004] In view of this, it is necessary to improve the existing wipers to strengthen the reliability and firmness of the elastic steel sheet, rubber strip and fixing structure, maintain the stability of the fixing parts and the elastic steel sheet in the intermediate process, and avoid the rubber strip shaking during the operation of the wiper. Summary of the Invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a wiper strip installation mechanism, which adopts an integrated structure for installing the wiper strip and the elastic steel sheet, ensuring that it is more stable during use and has a better wiping effect.

[0006] The technical solution adopted by the present invention is: a wiper rubber strip installation mechanism, including an elastic steel sheet and multiple groups of fixers arranged on the elastic steel sheet; the fixers include fixing claws arranged in pairs, and the upper end of each fixing claw is provided with an upper abutment platform and a lower abutment platform arranged in parallel, and each pair of fixing claws is located on both sides of the elastic steel sheet in the long direction and arranged opposite to each other, so that the upper abutment platform on one of the fixing claws can abut and fix with the upper end of the lower abutment platform of the other fixing claw; the lower end of the fixing claw is provided with a claw portion for fixing the wiper rubber strip, and a wiper rubber installation space is formed between the claw portions of each pair of fixing claws.

[0007] The elastic steel sheet in the wiper strip installation mechanism provided in the present technical solution is connected to the wiper strip through multiple sets of fixers. On the one hand, each pair of fixing claws of the fixer are fixed to each other through the upper abutment platform and the lower abutment platform, and on the other hand, are fixed to the wiper strip through the clamping claw part at the lower end. This not only ensures the stability of the connection between the elastic steel sheet and the wiper strip, but also makes the elastic steel sheet and the wiper strip more integrated after being connected. The wiper strip is more evenly affected by the elastic force of the elastic steel sheet, and the wiping effect is better during use.

[0008] Preferably, the upper surface of the elastic steel sheet and the contact surface of the fixing claw are fixed by ultrasonic welding.

[0009] Preferably, a snap hole is provided on the upper abutment platform of the fixing claw, and a snap protrusion is provided on the lower abutment platform. Each pair of fixing claws is relatively arranged on both sides of the elastic steel sheet in the long direction so that the snap protrusions and the snap holes can be snapped and matched in pairs.

[0010] Preferably, each pair of fixed claws abut against the upper abutment platform and the lower abutment platform are provided with mutually adapted matching inclined surfaces.

[0011] Preferably, the fixing claw is provided with an embedding groove on one side corresponding to the length direction of the elastic steel sheet, and the edge of the elastic steel sheet on one side in the length direction can be stuck in the embedding groove.

[0012] Preferably, the elastic steel sheet is provided with positioning grooves on both sides of the length direction which are adapted to the width of the fixing claws, and the positioning grooves are provided with fixing protrusions which can be snapped into the fixing grooves provided on the sides of the fixing claws.

[0013] The beneficial effects of the present invention are as follows: the elastic steel sheet in the wiper strip installation mechanism provided by the present invention is connected to the wiper strip via multiple sets of fixators. Each pair of fixing claws of the fixator is fixed to the wiper strip via an upper abutment platform and a lower abutment platform, and is fixed to the wiper strip via the claw portion at its lower end. This not only ensures the stability of the connection between the elastic steel sheet and the wiper strip, but also enhances the integrity of the connection between the elastic steel sheet and the wiper strip. The elastic force of the elastic steel sheet is more evenly applied to the wiper strip, resulting in a better wiping effect during use. The invention has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is a three-dimensional diagram of a wiper strip installation mechanism provided in an embodiment of the present invention.

[0016] Figure 2 This is a structural diagram of the elastic steel sheet of the wiper strip installation mechanism provided in an embodiment of the present invention.

[0017] Figure 3 This is a three-dimensional diagram of the fixing claw of the wiper strip installation mechanism provided in an embodiment of the present invention.

[0018] Figure 4 This is a stereoscopic diagram of the assembly of the fixing claws of the wiper strip installation mechanism provided in an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the wiper strip installation mechanism provided in an embodiment of the present invention.

[0020] Figure numerals: elastic steel sheet 100, positioning groove 110, fixing protrusion 120, fixing claw 200, upper abutment platform 210, lower abutment platform 220, claw portion 230, snap hole 240, snap protrusion 250, matching inclined surface 260, embedding groove 270, fixing groove 280, wiper rubber strip 300. DETAILED DESCRIPTION

[0021] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0022] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0023] like Figures 1 to 5 As shown, a first embodiment of the present invention provides a wiper rubber strip installation mechanism, which is used to install the wiper rubber strip. After installation, the overall structure has the characteristics of good integrity and high stability in use; it specifically includes an elastic steel sheet 100 and a plurality of sets of fixers arranged on the elastic steel sheet 100; the fixers include fixed claws 200 arranged in pairs, and the upper end of each fixed claw 200 is provided with an upper abutment platform 210 and a lower abutment platform 220 arranged in parallel. Each pair of fixed claws 200 is located on both sides of the elastic steel sheet 100 in the long direction and is arranged opposite to each other, so that the upper abutment platform 210 on one fixed claw 200 can be abutted and fixed with the upper end of the lower abutment platform 220 of the other fixed claw 200; the lower end of the fixed claw 200 is provided with a claw portion 230 for fixing the wiper rubber strip 300, and an installation space for installing the wiper rubber is formed between the claw portions 230 of each pair of fixed claws 200.

[0024] like Figures 1 to 5As shown, through the above arrangement, in this embodiment, the elastic steel sheet 100 is connected to the wiper rubber strip 300 through multiple groups of fixers, each group of fixers includes a pair of fixing claws 200, the upper ends of the fixing claws 200 are fixedly connected to the elastic steel sheet 100, and the lower ends form an installation space through the claw parts 230 of adjacent fixing claws 200, which is used to insert the wiper rubber strip 300 into the installation space for fixation; during assembly, each pair of fixing claws 200 is fixed to each other through the upper abutment platform 210 and the lower abutment platform 220 on the one hand, and is clamped into the groove on the side of the wiper rubber strip 300 through the claw parts 230 at their lower ends, which not only ensures the stability of the connection between the elastic steel sheet 100 and the wiper rubber strip 300, but also makes the integrity of the elastic steel sheet 100 and the wiper rubber strip 300 stronger after being connected, and the wiper rubber strip 300 is more evenly subjected to the elastic force of the elastic steel sheet 100, and has a better wiping effect when in use. In actual application, after the fixing claws 200 are installed on both sides of the elastic steel sheet 100, the contact surfaces of the fixing claws 200 and the elastic steel sheet 100 are welded and fixed using an ultrasonic welding process, so that the fixing claws 200 and the elastic steel sheet 100 form an integrated structure. Compared with the technical solutions in the prior art of punching holes on the elastic steel sheet 100 and then installing the wiper strip 300, and slotting the elastic steel sheet 100 to install the strip, the fixing structure provided in this embodiment and the method of fixing the elastic steel sheet 100 are beneficial to further increase the stability of the connection between the elastic steel sheet 100 and the wiper strip 300. In particular, after long-term use, the wiper strip 300 and the elastic steel sheet 100100 can still remain relatively stable, and the wiper strip 300 is more evenly stressed, thereby improving the wiping effect.

[0025] like Figure 3 and Figure 4 As shown, in order to improve the assembly stability of each set of fixers, a snap hole 240 is provided on the upper abutment platform 210 of the fixing claw 200, and a snap protrusion 250 is provided on the lower abutment platform 220. Each pair of fixing claws 200 is relatively arranged on both sides of the elastic steel sheet 100 in the long direction so that the snap protrusions 250 and the snap holes 240 can be snapped and matched in pairs; in addition, a matching inclined surface 26 is provided between the upper abutment platform 210 and the lower abutment platform 220 where each pair of fixing claws 200 abut and fix. 0; In this way, each pair of fixing claws 200 can make the matching inclined surfaces 260 of the upper abutting platform 210 and the lower abutting platform 220 cooperate with each other by plugging. After the upper abutting platform 210 is located above the lower abutting platform 220, the snap protrusions 250 and the snap holes 240 are used to achieve mutual fixation. After the plug-in fixation, the fixing claws 200 are initially fixed to the outside of the elastic steel sheet 100, so that the ultrasonic welding process can be implemented later to firmly install it on the elastic steel sheet 100.

[0026] like Figure 3 and Figure 4As shown, in order to ensure stable fit between the edge of the elastic steel sheet 100 and the fixing claw 200, the fixing claw 200 is provided with an embedding groove 270 on the side corresponding to the length of the elastic steel sheet 100, and the edge of the elastic steel sheet 100 on the length side can be snapped into the embedding groove 270; in this way, when each pair of fixing claws 200 are plug-in installed, the edge of the elastic steel sheet 100 on the length side can be snapped into the embedding groove 270, which can play a positioning and anti-slip effect.

[0027] like Figure 2 As shown, at the same time, this embodiment also provides positioning grooves on both sides of the elastic steel sheet 100 in the longitudinal direction, which are adapted to the width of the fixing claw 200. The positioning grooves are provided with fixing protrusions, which can be snapped into the fixing grooves 280 provided on the sides of the fixing claw 200. In this way, the positioning grooves mainly play a role in the installation and positioning of the fixing claw 200. When the fixing claw 200 is installed in a plug-in manner, it is snapped into the positioning groove position of the elastic steel sheet 100. After being snapped into the positioning groove, the fixing protrusions in the positioning grooves cooperate with the fixing grooves 280 on the sides of the fixing claw 200 to further limit the fixing claw 200, thereby preventing the fixing claw 200 from sliding and deflecting after the plug-in manner, which is conducive to improving the installation stability of the fixing claw 200 and the accuracy of the installation position.

[0028] like Figure 5 As shown, when assembling the wiper rubber strip 300 installation mechanism, first install the two fixing claws 200 of each group of fixers in the positioning grooves on the long edge of the elastic steel sheet 100, so that the fixing protrusions are stuck in the fixing grooves 280, and at the same time, the two fixing claws 200 arranged opposite to each other are fixed after being engaged with each other through the upper abutment platform 210 and the lower abutment platform 220. The assembled fixer is welded and fixed by ultrasonic welding in the area where the fixing claws 200 contact the upper surface of the elastic steel sheet 100; with the help of the ultrasonic welding process, the fixing claws 200 and the elastic steel sheet 100 form an integrated structure, which can ensure that the elastic steel sheet 100 has uniform elastic support force on each area of ​​the wiper rubber strip 300, and the contact surface between each area of ​​the wiper strip and the vehicle's windshield is more uniform; at the same time, the integrated structure will not cause position displacement or shaking and falling off after long-term use. After the installation of the fixer is completed, the wiper rubber strip 300 is passed along one end of the elastic steel sheet 100 into the installation space between the two fixing claws 200 of each fixer below the elastic steel sheet 100, so that the claw portion 230 at the lower end of each fixing claw 200 is inserted into the matching groove on the outside of the wiper rubber strip 300; not only is the installation stability high, but the installation is also more convenient and quick.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A wiper rubber strip installation mechanism, characterized in that: It comprises an elastic steel sheet (100) and a plurality of sets of fixing devices arranged on the elastic steel sheet (100); The fixing device comprises fixing claws (200) arranged in pairs, the upper end of each fixing claw (200) is provided with an upper abutment platform (210) and a lower abutment platform (220) arranged in parallel, each pair of fixing claws (200) is located on both sides of the elastic steel sheet (100) in the long direction and arranged opposite to each other, so that the upper abutment platform (210) on one fixing claw (200) can be abutted and fixed with the upper end of the lower abutment platform (220) of the other fixing claw (200); the lower end of the fixing claw (200) is provided with a clamping claw portion (230) for fixing the wiper rubber strip, and a wiper rubber installation space is formed between the clamping claw portions (230) of each pair of fixing claws (200).

2. The wiper rubber strip installation mechanism according to claim 1, characterized in that: The contact surface between the elastic steel sheet (100) and the fixing claw (200) is fixed by ultrasonic welding.

3. The wiper rubber strip installation mechanism according to claim 1, characterized in that: The upper abutment platform (210) of the fixing claw (200) is provided with a snap hole (240), and the lower abutment platform (220) is provided with a snap protrusion (250). Each pair of fixing claws (200) is relatively arranged on both sides of the elastic steel sheet (100) in the long direction so that the snap protrusions (250) and the snap holes (240) can be snapped and matched in pairs.

4. The wiper rubber strip installation mechanism according to claim 1, characterized in that: A matching inclined surface 260 is provided between the upper abutting platform (210) and the lower abutting platform (220) to which each pair of the fixed claws (200) abut and fix, so that after the upper abutting platform (210) and the lower abutting platform (220) abut up and down, the matching inclined surfaces 260 contact each other.

5. The wiper rubber strip installation mechanism according to claim 1, characterized in that: The fixing claw (200) is provided with an embedding groove (270) on one side corresponding to the lengthwise direction of the elastic steel sheet (100), and an edge of one side in the lengthwise direction of the elastic steel sheet (100) can be inserted into the embedding groove (270).

6. The wiper rubber strip installation mechanism according to claim 1, characterized in that: The elastic steel sheet (100) is provided with positioning grooves adapted to the width of the fixing claw (200) on both sides in the length direction, and a fixing protrusion is provided in the positioning groove, and the fixing protrusion can be inserted into a fixing groove (280) provided on the side of the fixing claw (200).

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