Multi-rubber strip three-section type wiper

Abstract

The utility model relates to a multi-rubber strip three-section type rain wiper, which comprises: a rain wiper rubber strip, the lower part of each rain wiper rubber strip is provided with a blade; a guide rail, the bottom of the guide rail is provided with two or more rubber strip mounting grooves, the upper part of the rain wiper rubber strip is embedded in the corresponding rubber strip mounting groove respectively, the top of the guide rail is provided with a lateral groove which is open laterally; a lever support assembly, a plurality of pairs of clamping claws are arranged on the lever support assembly along the length direction of the guide rail, and the clamping claws are connected in the lateral grooves by clamping; an end buckle cap, the end buckle cap is buckled at the end of the guide rail to limit the movement of the rain wiper rubber strip and the guide rail along the length direction relative to the lever support assembly; the guide rail of the rain wiper increases the number of rubber strip mounting grooves, can satisfy the installation of two or more rain wiper rubber strips on the guide rail, makes the rain wiper have stronger cleaning ability for glass, the guide rail can be directly buckled on the lever support assembly, can simplify the structure of the rain wiper, and reduce the overall quality of the rain wiper.

Description

Technical Field

[0001] This utility model relates to the field of windshield wipers, specifically a multi-rubber strip three-section windshield wiper. Background Technology

[0002] Windshield wipers, as an indispensable accessory for automobiles, are mainly used to remove raindrops and dust adhering to the windshield, thereby improving visibility. Currently, the structure of windshield wipers is shown in Chinese patent document, application number 202422373221.5, which discloses components including a car connecting bracket, steel sheet, bridge bracket, connecting rail, wiping element, and end cap. During installation, the connecting rail is fastened to the bridge bracket, which is connected to the steel sheet. The wiping element is connected to the bottom of the connecting rail. This type of wiper can only install one wiping element on the connecting rail, resulting in low wiping efficiency. Furthermore, when the wiping element is deformed or damaged, it may miss areas. The end cap, fastened to the bridge bracket, restricts the position of the wiping element, making the wiper structure more complex, difficult to install, and increasing the weight of the wiper itself. Therefore, there is a need for a simpler multi-strip three-section wiper to solve these problems. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a simple and reasonable multi-strip three-section windshield wiper.

[0004] Multi-rubber strip three-section wiper blades, including: Wiper blades, wherein there are two or more wiper blades and they are made of elastic material, and each wiper blade has two or more blades spaced apart from each other at the bottom. The guide rail has two or more rubber strip mounting slots arranged horizontally at its bottom, and the upper part of each wiper rubber strip is embedded in the corresponding rubber strip mounting slot. The left and right sides of the top of the guide rail have side slots that are open to the side. A lever support assembly, wherein an array of two opposing claws is provided along the length direction of the guide rail, and the array of claws is engaged and connected in the grooves on both sides; An end cap is attached to the end of the guide rail to restrict the movement of the wiper blade relative to the guide rail and the guide rail relative to the lever bracket assembly along the length direction.

[0005] The objective of this utility model can also be achieved by the following technical measures: As a more specific embodiment, the end cap includes an end wall and side walls on both sides of the end wall. The inner side wall of the side wall is provided with a buckle to prevent slippage. Each side groove has a buckle hole on its inner side wall near its end, and the buckle to prevent slippage is fastened into the buckle hole.

[0006] As a further embodiment, an open-top isolation groove is provided between the two side grooves; an inner support block extends forward along its symmetrical line from the inner side wall of the cap end wall, and the inner support block is tightly embedded in the isolation groove.

[0007] As a further embodiment, the guide rail includes a lower half of the guide rail body, and the two or more rubber strip mounting grooves are both T-shaped grooves and are formed on the guide rail body, with the opening of the rubber strip mounting groove formed on the bottom surface of the guide rail body. As a further embodiment, the guide rail also includes two inverted L-shaped portions in the upper half. The two inverted L-shaped portions are symmetrically arranged and each encloses and defines a square side groove with the guide rail body. The two inverted L-shaped portions enclose and define an isolation groove.

[0008] As a further embodiment, the width of the inner support block decreases linearly from the rear end to the front end; the cross-sections of both the isolation groove and the inner support block are equilateral trapezoidal or approximately equilateral trapezoidal, with the long side of the cross-section located at the upper base and the short side located at the lower base.

[0009] As a further embodiment, the anti-detachment hook includes two sets of end faces; one set of end faces includes a first inclined guide surface and a second inclined guide surface, the first inclined guide surface and the second inclined guide surface having different inclination angles; the other set of end faces is an anti-detachment hook surface, the anti-detachment hook surface being inclined inward.

[0010] As a further embodiment, the inner support block is located on the inner side wall of the upper half of the cap end wall, and the top surface of the inner support block is flush with the top surface of the end cap. The inner side wall of the lower half of the cap end wall stops outside the port of the rubber strip mounting groove.

[0011] As a further embodiment, the lever support assembly includes a yoke support and two bridge supports. Both ends of the yoke support are provided with a pivot, and the middle position of the two bridge supports is rotatably connected to the pivot. Each bridge support is provided with a set of claws at both ends, and the claws on the bridge supports form part of an array of claws.

[0012] As a further embodiment, the lever support assembly also includes a middle outer sheath and two end outer sheaths. The middle outer sheath is fastened to the middle outer side of the yoke support, and the two end outer sheaths are rotatably connected to the outer sides of the ends of the yoke support. Each end outer sheath has a set of claws extending from its outer end, and the claws on the end outer sheaths form another part of the array of claws.

[0013] As a further solution, an inner connecting bracket for connecting with the wiper arm is also included. The inner connecting bracket has an open slot, and a connecting shaft is provided in the middle of the yoke bracket. Through the cooperation of the connecting shaft and the open slot, the lever bracket assembly can be detachably connected to the inner connecting bracket.

[0014] The beneficial effects of this utility model are as follows: This utility model relates to a multi-strip three-section windshield wiper. The wiper uses a simple guide rail structure design. By increasing the number of rubber strip mounting slots, it can accommodate two or more wiper rubber strips on the guide rail, making the wiper more effective at cleaning the glass and preventing missed wiping when a single wiper rubber strip is deformed or damaged. It also makes the installation and removal of the wiper rubber strips extremely simple and convenient. In addition, a side groove is provided at the top, allowing the guide rail to have multiple functions and making it easy for the guide rail to be fastened to the lever bracket assembly.

[0015] In addition, the end cap can be directly installed on the end of the guide rail, thereby simultaneously restricting the movement of the wiper blade relative to the guide rail and the guide rail relative to the lever bracket assembly along the length direction. The inner support block on the end cap can be embedded in the isolation groove added to the guide rail, which can strengthen the strength of the isolation groove in the middle of the guide rail, ensure the stability of the anti-detachment hook, and prevent the guide rail from deforming and causing the lever bracket assembly to fail to effectively fasten to the guide rail. The inner support block can be integrally formed with the end cap, resulting in a simple overall structure, easy production, and no additional production processes or significant increase in production costs.

[0016] Furthermore, the lever bracket assembly consists of only a yoke bracket, a bridge bracket, an intermediate outer sheath, and an end outer sheath, which simplifies the structure, reduces the overall weight of the wiper, and lowers production costs. The assembly process is also simpler, improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the windshield wiper structure in this utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the guide rail in this utility model.

[0019] Figure 3 This is a schematic diagram of the wiper blade mounting structure in this utility model.

[0020] Figure 4 This is a schematic diagram of the mid-end buckle structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the buckle hole structure in this utility model.

[0022] Figure 6 This is a top view of the structure of the mid-section buckle cap of this utility model.

[0023] Figure 7 This is a schematic diagram of the shape and structure of the inner support block in this utility model.

[0024] Figure 8 for Figure 6Enlarged structural diagram at point B.

[0025] Figure 9 This is an exploded structural diagram of the present invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] refer to Figures 1 to 9 As shown, the multi-rubber strip three-section windshield wiper includes: Wiper blade 1, wherein there are two or more wiper blades 1 and they are made of elastic material, and each wiper blade 1 has two or more blades 101 arranged at intervals at the bottom. The guide rail 2 has two or more rubber strip mounting grooves 21 arranged horizontally at its bottom. The upper part of the wiper rubber strip 1 is embedded in the corresponding rubber strip mounting groove 21. The left and right sides of the top of the guide rail 2 have side grooves 22 that are open to the side. Lever support assembly 3, wherein an array of two opposing claws 301 are provided on the lever support assembly 3 along the length direction of the guide rail 2, and the array of claws 301 are fastened and connected in the two side grooves 22; End cap 4 is fastened to the end of guide rail 2 to restrict the wiper blade 1 from moving relative to guide rail 2 and guide rail 2 from moving relative to lever bracket assembly 3 along the length direction.

[0028] This wiper uses a simple guide rail structure design. By increasing the number of rubber strip mounting slots 21, it can accommodate two or more wiper rubber strips 1 on the guide rail 2. Each wiper rubber strip 1 has two or more wiper blades 101, which can further improve the wiping ability of the wiper rubber strip, making the wiper stronger in wiping the glass and avoiding the situation of missed wiping when a single wiper rubber strip 1 is deformed or damaged. Furthermore, the upper part of the wiper blade is provided with a fixing groove 102, and the upper part of the wiper blade 1 is slidably engaged in the blade mounting groove 22 through the fixing groove 102, making the installation and removal of the wiper blade 1 extremely simple and convenient. In addition, a side groove is provided at the top, which allows the guide rail to have multiple functions at the same time, and makes it easier for the guide rail 2 to be fastened to the lever bracket assembly 3.

[0029] The end cap 4 includes an end wall 41 and side walls 42 on both sides of the end wall 41. The inner side wall of the side wall 42 is provided with a hook 43 to prevent detachment. Each side groove 22 has a buckle hole 221 on its inner side wall near its end. The hook 43 is fastened in the buckle hole 221. The end cap 4 is fastened to the buckle hole 221 by the hook 43 to achieve assembly connection. The end cap 4 blocks the wiper blade 1 to prevent the wiper blade 1 from detaching. Compared to the prior art, the end cap 4 can be directly installed at the end of the guide rail 2, and the cap sidewall 42 cooperates with the outermost claw 301 to stop, thereby simultaneously restricting the wiper blade 1 from moving relative to the guide rail 2 and the guide rail 2 from moving relative to the lever bracket assembly 3 along the length direction, which can simplify the wiper structure and reduce the overall weight of the wiper.

[0030] An open-top isolation groove 23 is provided between the two side grooves 22; an inner support block 44 extends forward along its symmetrical line from the inner side wall of the cap end wall 41, and the inner support block 44 is tightly embedded in the isolation groove 23; the inner support block 44 can strengthen the strength of the isolation groove 23 in the middle of the guide rail 2, ensure the stability of the anti-detachment hook 43, and prevent the guide rail 2 from deforming, so that the lever support assembly 34 cannot be effectively fastened to the guide rail 2; In addition, the inner support block 44 can be integrally formed with the end cap 4, resulting in a simple overall structure that is easy to manufacture without adding extra production processes or significantly increasing production costs.

[0031] The guide rail 2 includes a lower half of the guide rail body 2a. The two or more rubber strip mounting grooves 21 are T-shaped grooves and are formed on the guide rail body 2a. The opening 211 of the rubber strip mounting groove 21 is formed on the bottom surface of the guide rail body 2a. The guide rail 2 also includes two inverted L-shaped parts 2b in the upper part. The two inverted L-shaped parts 2b are symmetrically arranged and respectively enclose and define square side grooves 22 between the guide rail body 2a. The two inverted L-shaped parts 2b enclose and define an isolation groove 23. The isolation groove 23 is mainly used after the end cap 4 is installed in place. The inner support block 44 on the end cap 4 can be embedded in the isolation groove 23 to support the inverted L-shaped parts 2b on the left and right sides and prevent the two inverted L-shaped parts 2b from easily deforming after being fastened.

[0032] The cross-section of the guide rail body 2a is rectangular. The shape of the main body of the rubber strip mounting groove 21 matches that of the guide rail body 2a. A wall is formed on the guide rail body 2a surrounding the rubber strip mounting groove 21. The wall thickness of the wall is uniformly or evenly set. The guide rail 2 is made of profile material, and its wall thickness is relatively thin. Therefore, setting the wall thickness uniformly or evenly can prevent any position of the guide rail 2 from being easily deformed.

[0033] The connection point A between the two inverted L-shaped parts 2b and the guide rail body 2a corresponds to the middle position of the adjacent rubber strip mounting groove 21; the lower half of the guide rail 2 has the same width; thus widening the distance between the two side grooves 22, making it easier for the claws 301 to engage and connect.

[0034] The width of the inner support block 44 decreases linearly from the rear end to the front end. After assembly, the rear end of the inner support block 445 can be clearance-fitted or interference-fitted with the isolation groove 23 to achieve a supporting function. The cross-sections of the isolation groove 23 and the inner support block 44 are both in the shape of an equilateral trapezoid or approximately an equilateral trapezoid, with the long side of the cross-section located at the upper base and the short side located at the lower base. After the inner support block 44 is assembled in place, it can be ensured that the left and right sides of the inner support block 44 can abut against the two sides of the isolation groove 23, ensuring the support effect.

[0035] The wall surface of the inverted L-shaped part 2b that defines the isolation groove 23 is inclined, and the width of the isolation groove 23 decreases linearly from top to bottom through two inclined surfaces. This structure allows the width of the inverted L-shaped part 2b to increase from top to bottom, making the connection between the inverted L-shaped part 2b and the guide rail body 2a stronger and making the inverted L-shaped part 2b less prone to deformation.

[0036] The anti-detachment hook 43 includes two sets of end faces; one set of end faces includes a first inclined guide surface 431 and a second inclined guide surface 432, the first inclined guide surface 431 and the second inclined guide surface 432 have different inclination angles; the other set of end faces is the anti-detachment hook surface 433, the anti-detachment hook surface 433 is inclined inward. The first inclined guide surface 431 and the second inclined guide surface 432 help the inner support block 44 to be embedded in the isolation groove 23, while the anti-disengagement surface 43 is set in the opposite direction, making the end cap 4 more secure and less likely to be loosened by impact.

[0037] The inner support block 44 is located on the inner side wall of the upper half of the cap end wall 41, and the anti-detachment hook 43 is located on the inner side wall of the upper half of the cap side wall 42. The top surface of the inner support block 44 is flush with the top surface of the end cap 4. The inner side wall of the lower half of the cap end wall 41 stops outside the port of the rubber strip mounting groove 21. After the end cap 4 is assembled in place, it keeps the top surface of the guide rail 2 smooth, making the wiper more aesthetically pleasing.

[0038] The gap width H between the two cap sidewalls 42 decreases linearly from the side closer to the cap end wall 41 to the side farther away from the cap end wall 41; the minimum position of the gap width H is less than the width between the side grooves 22, so that the two cap sidewalls 42 can be elastically opened and then inserted into the end of the guide rail 2, improving the connection strength and making the anti-loosening hook 43 more stable when it is fastened into the buckle hole 221.

[0039] The extension length of the inner support block 44 is approximately half the length of the cap sidewall 42; and there is a gap between the cap sidewall 42 and the anti-slip hook 43. This structure allows the inner support block 44 to avoid obstructing the anti-slip hook 43 from fastening into the buckle hole 221.

[0040] The inner sidewall of the cap sidewall 42 is provided with a cap guide rail 45 along its length direction, and the anti-slip hook 43 is provided on the outer end side of the cap guide rail 45; to ensure the connection strength between the cap 4 and the guide rail 2, and to prevent the two from shaking up and down.

[0041] The inner support block 44 is disposed between the two cap guide rails 45, and there is a gap between the inner support block 44 and the cap guide rails 45 on the left and right sides.

[0042] The lever support assembly 3 includes a yoke support 31 and two bridge supports 32. Both ends of the yoke support 31 are provided with a pivot 321. The middle position of the two bridge supports 32 is rotatably connected to the pivot 321. Each bridge support 32 is provided with a set of claws 301 at both ends. The claws 301 on the bridge supports 32 form part of the array of claws 301.

[0043] The lever support assembly 3 also includes a middle outer sheath 33 and two end outer sheaths 34. The middle outer sheath 33 is fastened to the middle outer side of the yoke support 31, and the two end outer sheaths 34 are rotatably connected to the end outer side of the yoke support 31. Each end outer sheath 34 has a set of claws 301 extending from its outer end. The claws 301 on the end outer sheath 34 form another part of the array of claws 301.

[0044] The lever bracket assembly consists of a yoke bracket 31, a bridge bracket 32, an intermediate outer sheath 33, and an end outer sheath 34. The structure is simplified, which can reduce the overall weight of the wiper and reduce production costs. The assembly process is also simpler, improving production efficiency.

[0045] It also includes a snap-fit ​​inner connecting frame 5 for connecting with the wiper arm 6. The snap-fit ​​inner connecting frame 5 is provided with an open slot 51. The yoke-shaped bracket 31 is provided with a connecting shaft 311 in the middle. Through the cooperation of the connecting shaft 311 and the open slot 51, the lever bracket assembly 3 can be detachably connected to the snap-fit ​​inner connecting frame 5. The snap-fit ​​inner connecting frame 5 allows the entire lever bracket assembly 3 to be detached from the wiper arm 6, which is convenient for disassembly and replacement.

[0046] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. 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 without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A three-section windshield wiper with multiple rubber strips, characterized in that... ,include: Wiper blade (1), wherein there are two or more wiper blades (1) and they are made of elastic material, and each wiper blade (1) has two or more blades (101) arranged at intervals at the bottom. The guide rail (2) has two or more rubber strip mounting grooves (21) arranged horizontally at its bottom. The upper part of the wiper rubber strip (1) is embedded in the corresponding rubber strip mounting groove (21). The left and right sides of the top of the guide rail (2) are provided with side grooves (22) that are open laterally. Lever support assembly (3), the lever support assembly (3) is provided with an array of two opposing claws (301) along the length direction of the guide rail (2), the array of claws (301) are fastened and connected in the two side grooves (22); End cap (4) is fastened to the end of the guide rail (2) to restrict the wiper blade (1) from moving relative to the guide rail (2) and the guide rail (2) from moving relative to the lever bracket assembly (3) along the length direction.

2. The multi-rubber strip three-section windshield wiper according to claim 1, characterized in that: The end cap (4) includes an end cap wall (41) and a side cap wall (42) on both sides of the end cap wall (41). The inner side wall of the side cap wall (42) is provided with a buckle (43) to prevent slippage. Each side groove (22) has a buckle hole (221) on its inner side wall near its end. The buckle (43) is fastened in the buckle hole (221).

3. The multi-rubber strip three-section wiper according to claim 2, characterized in that: An open-top isolation groove (23) is provided between the two side grooves (22); an inner support block (44) extends forward along its symmetrical line from the inner side wall of the cap end wall (41), and the inner support block (44) is tightly embedded in the isolation groove (23).

4. The multi-rubber strip three-section wiper according to claim 1, characterized in that: The guide rail (2) includes a lower half of the guide rail body (2a), and the two or more rubber strip mounting grooves (21) are T-shaped grooves and are opened on the guide rail body (2a). The opening (211) of the rubber strip mounting groove (21) is opened on the bottom surface of the guide rail body (2a). The guide rail (2) also includes two inverted L-shaped parts (2b) in the upper half. The two inverted L-shaped parts (2b) are symmetrically arranged and respectively enclose and define square side grooves (22) between the guide rail body (2a). The two inverted L-shaped parts (2b) enclose and define isolation grooves (23).

5. The multi-rubber strip three-section wiper according to claim 3, characterized in that: The width of the inner support block (44) decreases linearly from the rear end to the front end; the cross-sections of the isolation groove (23) and the inner support block (44) are both equilateral trapezoidal or approximately equilateral trapezoidal, and the long side of the cross-section is located at the upper base and the short side is located at the lower base.

6. The multi-rubber strip three-section wiper according to claim 2, characterized in that: The anti-detachment hook (43) includes two sets of end faces; one set of end faces includes a first inclined guide surface (431) and a second inclined guide surface (432), the first inclined guide surface (431) and the second inclined guide surface (432) have different inclination angles; the other set of end faces is the anti-detachment hook surface (433), the anti-detachment hook surface (433) is inclined inward.

7. The multi-rubber strip three-section wiper according to claim 3, characterized in that: The inner support block (44) is located on the inner side wall of the upper half of the cap end wall (41), and the top surface of the inner support block (44) is flush with the top surface of the end cap (4). The inner side wall of the lower half of the cap end wall (41) is stopped outside the port of the rubber strip mounting groove (21).

8. The multi-rubber strip three-section windshield wiper according to claim 1, characterized in that: The lever support assembly (3) includes a yoke support (31) and two bridge supports (32). Both ends of the yoke support (31) are provided with a pivot (321). The middle position of the two bridge supports (32) is rotatably connected to the pivot (321). Both ends of each bridge support (32) are provided with a set of claws (301). The claws (301) on the bridge support (32) form part of the array of claws (301).

9. The multi-rubber strip three-section wiper according to claim 8, characterized in that: The lever support assembly (3) also includes a middle outer sheath (33) and two end outer sheaths (34). The middle outer sheath (33) is fastened to the middle outer side of the yoke support (31), and the two end outer sheaths (34) are rotatably connected to the outer side of the end of the yoke support (31). Each end outer sheath (34) has a set of claws (301) extending from its outer end. The claws (301) on the end outer sheaths (34) form another part of the array of claws (301).

10. The multi-rubber strip three-section wiper according to claim 8, characterized in that: It also includes a snap-fit ​​inner connecting frame (5) for connecting with the wiper arm (6), the snap-fit ​​inner connecting frame (5) is provided with an open slot (51), and the middle of the yoke bracket (31) is provided with a connecting pin (311). Through the cooperation of the connecting pin (311) and the open slot (51), the lever bracket assembly (3) can be detachably connected to the snap-fit ​​inner connecting frame (5).

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