Multi-rubber-strip three-section type windscreen wiper

Abstract

The invention relates to a multi-rubber-strip three-section type windscreen wiper which comprises windscreen wiper rubber strips, and a wiper blade is arranged on the lower portion of each windscreen wiper rubber strip. The bottom of the guide rail is provided with two or more rubber strip installation grooves, the upper portions of the windscreen wiper rubber strips are embedded into the corresponding rubber strip installation grooves respectively, and the top of the guide rail is provided with side grooves which are opened in the side direction. A plurality of groups of two opposite clamping jaws are arranged on the lever bracket assembly along the length direction of the guide rail, and the plurality of groups of clamping jaws are buckled and connected in the two side grooves; the end buckle cap is buckled at the end part of the guide rail and is used for limiting the windscreen wiper rubber strip to move relative to the guide rail and the guide rail to move relative to the lever bracket assembly along the length direction; according to the guide rail adopted by the windscreen wiper, the number of the rubber strip mounting grooves is increased, two or more windscreen wiper rubber strips can be mounted on the guide rail, the wiping capacity of the windscreen wiper to glass is higher, the guide rail can be directly buckled to the lever support assembly, the structure of the windscreen wiper can be simplified, and the overall mass of the windscreen wiper can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wiper, in particular to a multi-rubber strip three-section wiper. BACKGROUND

[0002] As an indispensable accessory on the car, the wiper is mainly used for scraping the raindrops and dust attached to the windshield of the vehicle, and plays a role in improving the vision in front of the vehicle. The current wiper structure is shown in the end buckle cap structure of the wiper disclosed in Chinese patent document, application number: 202422373221.5, which comprises a car connecting frame, a steel sheet, a bridge support, a connecting rail, a wiping piece and an end buckle cap, etc. During installation, the connecting rail is buckled on the bridge support, and the bridge support is connected to the steel sheet. The wiping piece in the structure is connected to the bottom of the connecting rail. The wiper of this structure can only install one wiping piece on the connecting rail, so its scraping efficiency is low. Moreover, when the wiping piece is deformed or damaged, it will appear to be missed. In addition, the end buckle cap is buckled on the bridge support to limit the position of the wiping piece, which makes the structure of the wiper more complex, difficult to install, and increases the weight of the wiper itself. Therefore, it is necessary to provide a simple structure of multi-rubber strip three-section wiper to solve the above problems. SUMMARY

[0003] The present application aims to solve the above-mentioned problems, and provides a simple and reasonable multi-rubber strip three-section wiper.

[0004] The multi-rubber strip three-section wiper comprises: A wiper rubber strip, which is made of elastic material and has two or more rubber strips, and the lower part of each wiper rubber strip is provided with two or more wiper blades arranged at intervals; A guide rail, which is provided with two or more rubber strip mounting grooves arranged in the horizontal direction at the bottom of the guide rail, and the upper part of each wiper rubber strip is embedded in the corresponding rubber strip mounting groove, and the left and right sides of the top of the guide rail are provided with side grooves which are open to the side; A lever support assembly, which is provided with a plurality of pairs of opposing clamps along the length direction of the guide rail, and the clamps are buckled and connected in the side grooves; An end buckle cap, which is buckled at the end of the guide rail to limit the movement of the wiper rubber strip relative to the guide rail and the guide rail relative to the lever support assembly in the length direction.

[0005] The purpose of the present application can also be solved by the following technical measures: As a more specific scheme, the end buckle cap comprises a cap end wall and a cap side wall arranged on both sides of the cap end wall, the inner side wall of the cap side wall is provided with a anti-dropping barb, and any side groove is provided with a buckle hole on the inner side wall close to the end thereof, and the anti-dropping barb is buckled in the buckle hole.

[0006] As a further solution, the two side grooves are provided with an open-top isolation groove; the inner side wall of the cap end wall extends forward along its symmetry line with an inner support block, which is tightly embedded in the isolation groove.

[0007] As a further solution, the guide rail comprises a lower half guide rail body, the two or more rubber strip installation grooves are also T-shaped grooves and are provided on the guide rail body, and the opening of the rubber strip installation groove is provided on the bottom surface of the guide rail body; As a further solution, the guide rail further comprises two upper half inverted L-shaped portions, which are symmetrically arranged and respectively cooperatively define a square side groove with the guide rail body, and cooperatively define an isolation groove with each other.

[0008] As a further solution, the width of the inner support block linearly decreases from the rear end to the front end; the cross section of the isolation groove and the inner support block are isosceles trapezoidal or approximately isosceles trapezoidal, and the long side of the cross section is located at the upper bottom and the short side is located at the lower bottom.

[0009] As a further solution, the anti-detachment hook comprises two groups of end faces; one group of end faces comprises a first inclined guide face and a second inclined guide face, the inclination angles of the first inclined guide face and the second inclined guide face are different; the other group of end faces is an anti-detachment hook face, which is inwardly inclined.

[0010] As a further solution, the bottom of the guide rail is provided with three or more rubber strip installation grooves arranged in the horizontal direction, wherein one rubber strip is embedded in each of the two outermost rubber strip installation grooves, and at least one of the remaining rubber strip installation grooves is embedded with a brush; and the length of the brush is slightly shorter than that of the wiper rubber strip.

[0011] As a further solution, the lever support assembly comprises a yoke-shaped support and two bridge-shaped supports, the two end portions of the yoke-shaped support are provided with a rotating shaft portion, the middle position of the two bridge-shaped supports is rotationally connected to the rotating shaft portion, and each end portion of each bridge-shaped support is provided with a group of clamping claws, and the clamping claws on the bridge-shaped supports form part of the groups of clamping claws.

[0012] As a further solution, the lever support assembly further comprises a middle outer sheath and two end portion outer sheaths, the middle outer sheath is buckled to the outer side of the middle of the yoke-shaped support, the two end portion outer sheaths are rotationally connected to the outer side of the ends of the yoke-shaped support, and the outer end portion of each end portion outer sheath extends a group of clamping claws, and the clamping claws on the end portion outer sheaths form another part of the groups of clamping claws.

[0013] As a further scheme, a buckle inner connecting frame for connecting with the wiper arm is further included, and an open clamping groove is arranged on the buckle inner connecting frame, and a connecting clamping shaft is arranged in the middle of the yoke-shaped support, and the lever support assembly can be detachably connected on the buckle inner connecting frame through the cooperation of the connecting clamping shaft and the open clamping groove.

[0014] The beneficial effects of the present application are as follows: The multi-rubber-strip three-section wiper of the present application adopts a simple guide rail structure, and by increasing the number of rubber strip mounting grooves, two or more wiper rubber strips can be mounted on the guide rail, so that the wiper has stronger glass cleaning ability, avoids the situation of missed cleaning caused by deformation or damage of a single wiper rubber strip, and makes the installation and dismounting of the wiper rubber strip extremely simple and convenient. In addition, the side groove is arranged at the top of the side edge, so that the guide rail has multiple functions and is convenient for buckling on the lever support assembly.

[0015] In addition, the end buckle cap can be directly mounted on the end of the guide rail, thereby simultaneously limiting the movement of the wiper rubber strip relative to the guide rail and the movement of the guide rail relative to the lever support assembly along the length direction, and the inner supporting block on the end buckle cap can be embedded in the isolation groove added on the guide rail, so as to strengthen the strength of the middle isolation groove of the guide rail, ensure the stable hooking of the anti-disengagement barb, and prevent the deformation of the guide rail from causing the lever support assembly to be unable to be effectively buckled on the guide rail. The inner supporting block can be integrally formed with the end buckle cap, the overall structure is simple, production is easy, and additional production processes and substantial production costs are not increased.

[0016] In addition, the lever support assembly is only composed of the yoke-shaped support, the bridge-shaped support, the middle outer sheath and the end outer sheath, the structure is simplified, the overall quality of the wiper can be reduced, the production cost can be reduced, the assembly and production process are simpler, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic diagram of the wiper in the present application.

[0018] Figure 2 It is a structure schematic diagram of the guide rail cross section in the first embodiment of the present application.

[0019] Figure 3 It is a structure schematic diagram of the rubber strip mounting structure mounted with the wiper rubber strip in the present application.

[0020] Figure 4 It is a structure schematic diagram of the end buckle cap in the present application.

[0021] Figure 5 It is a structure schematic diagram of the buckle hole in the present application.

[0022] Figure 6 It is a top view structure schematic diagram of the end buckle cap in the present application.

[0023] Figure 7 The shape structure diagram of the inner support block in the application.

[0024] Figure 8 The shape structure diagram of the inner support block in the application. Figure 6 The enlarged structure diagram of B in the application.

[0025] Figure 9 The shape structure diagram of the inner support block in the application.

[0026] Figure 10 The shape structure diagram of the inner support block in the application. DETAILED DESCRIPTION

[0027] The application will be further described below in combination with the drawings and embodiments.

[0028] First embodiment: Referring to Figures 1 to 9 The multi-rubber strip three-section type wiper shown in the figure comprises: A wiper rubber strip 1, which is made of elastic material and provided with two strips, and the lower part of each wiper rubber strip 1 is provided with two or more mutually spaced wiper blades 101; A guide rail 2, which is provided at the bottom with two rubber strip mounting grooves 21 arranged in the horizontal direction, the upper part of the wiper rubber strip 1 is respectively embedded in the corresponding rubber strip mounting groove 21, and the left and right sides of the top of the guide rail 2 are provided with side grooves 22 which are open in the lateral direction; A lever support assembly 3, which is provided along the length direction of the guide rail 2 with a plurality of pairs of clamping jaws 301, and the clamping jaws 301 are connected in the two side grooves 22 by clamping; An end clamping cap 4, which is clamped at the end of the guide rail 2 to limit the movement of the wiper rubber strip 1 relative to the guide rail 2 and the movement of the guide rail 2 relative to the lever support assembly 3 in the length direction.

[0029] The guide rail structure of this wiper is simple in design, and by increasing the number of rubber strip mounting grooves 21, two or more wiper rubber strips 1 can be installed on the guide rail 2, each wiper rubber strip 1 is provided with two or more wiper blades 101, which can further improve the cleaning ability of the wiper rubber strip, and the wiper has stronger cleaning ability for glass, avoiding the situation of missing cleaning when a single wiper rubber strip 1 is deformed or damaged. And the upper part of the wiper rubber strip is provided with a fixed clamping groove 102, the upper part of the wiper rubber strip 1 is clamped in the rubber strip mounting groove 22 by sliding through the fixed clamping groove 102, so that the installation and disassembly of the wiper rubber strip 1 are extremely simple and convenient, and in addition, the side grooves are provided on the top, which makes the guide rail have multiple functions, and the guide rail 2 is more easily clamped on the lever support assembly 3.

[0030] The end buckle cap 4 comprises a cap end wall 41 and cap side walls 42 arranged on both sides of the cap end wall 41, and the inner side wall of the cap side wall 42 is provided with a anti-escape hook 43, and the buckle hole 221 is arranged on the inner side wall close to the end of any side groove 22, and the anti-escape hook 43 is buckled in the buckle hole 221, the end buckle cap 4 is buckled on the buckle hole 221 by the anti-escape hook 43, and the assembly connection is realized, and the end buckle cap 4 blocks the wiper rubber strip 1 and prevents the wiper rubber strip 1 from being separated. Compared with the background art, the end buckle cap 4 can be directly installed at the end of the guide rail 2, the cap side wall 42 is in abutment with the outermost claw 301, thereby limiting the movement of the wiper rubber strip 1 relative to the guide rail 2 and the guide rail 2 relative to the lever support assembly 3 along the length direction at the same time, the wiper structure can be simplified, and the overall quality of the wiper can be reduced.

[0031] The two side grooves 22 are provided with a top open isolation groove 23; the inner side wall of the cap end wall 41 extends forward along the symmetry line position and has an inner support block 44, and the inner support block 44 is closely embedded in the isolation groove 23; the inner support block 44 can strengthen the strength of the middle isolation groove 23 of the guide rail 2, ensure the stable hooking of the anti-escape hook 43, and prevent the deformation of the guide rail 2 from causing the lever support assembly 34 to be unable to be effectively buckled on the guide rail 2; In addition, the inner support block 44 can be integrally formed with the end buckle cap 4, the overall structure is simple, the production is easy, and the production process is not additionally increased and the production cost is not greatly improved.

[0032] The guide rail 2 comprises a lower half guide rail body 2a, and the two or more rubber strip mounting grooves 21 are also T-shaped grooves and are arranged on the guide rail body 2a, and the opening part 211 of the rubber strip mounting groove 21 is arranged on the bottom surface of the guide rail body 2a; The guide rail 2 further comprises two inverted L-shaped parts 2b in the upper half, the two inverted L-shaped parts 2b are symmetrically arranged and respectively surround the guide rail body 2a to define the square side groove 22, and the two inverted L-shaped parts 2b surround the isolation groove 23; after the end buckle cap 4 is installed in place, the inner support block 44 on the end buckle cap 4 can be embedded in the isolation groove 23 to support the left and right inverted L-shaped parts 2b, and deformation of the two inverted L-shaped parts 2b after buckling is avoided.

[0033] The cross section of the guide rail body 2a is rectangular, the main body of the rubber strip mounting groove 21 is matched with the shape of the guide rail body 2a, a wall part surrounding the rubber strip mounting groove 21 is formed on the guide rail body 2a, and the wall thickness of the wall part is uniformly arranged or uniformly arranged; the guide rail 2 is made of a profile material, the wall thickness of the wall part is relatively thin, therefore, the uniform arrangement or uniform arrangement of the wall thickness can prevent any position of the guide rail 2 from being easily deformed.

[0034] The connecting point A of the two inverted L-shaped parts 2b and the guide rail body 2a corresponds to the middle position of the rubber strip mounting groove 21; the lower half of the guide rail 2 has the same width as the lower half; the spacing of the two side grooves 22 is widened to facilitate the clamping of the pawl 301.

[0035] 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 in clearance fit or interference fit with the isolation groove 23, achieving the supporting effect. The cross section of the isolation groove 23 and the inner support block 44 is in the shape of an isosceles trapezoid or approximately in the shape of an isosceles trapezoid, and the long side in the cross section is located at the upper base and the short side is 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 be supported on the two side faces of the isolation groove 23, ensuring the supporting effect.

[0036] The wall surface of the inverted L-shaped part 2b for defining the isolation groove 23 is inclined. The isolation groove 23 has a linearly decreasing width from top to bottom through the two inclined surfaces. The structure can increase the width of the inverted L-shaped part 2b from top to bottom, increase the strength of the connection between the inverted L-shaped part 2b and the guide rail body 2a, and prevent the deformation of the inverted L-shaped part 2b.

[0037] The anti-disengagement hook 43 includes two groups of end faces. One group of end faces includes a first inclined guide surface 431 and a second inclined guide surface 432, and the inclination angles of the first inclined guide surface 431 and the second inclined guide surface 432 are different. The other group of end faces is an anti-disengagement hook surface 433, which is inclined inwardly. 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, and the anti-disengagement hook surface 43 is arranged in the opposite direction, so that the end cap 4 is more firmly connected and is not easily disengaged by impact.

[0038] The inner support block 44 is located on the inner side wall of the upper half of the cap end wall 41, the anti-disengagement hook 43 is located on the inner side wall of the upper half of the cap side wall 42, 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, and after the end cap 4 is assembled in place, the top surface of the guide rail 2 is kept smooth, making the wiper more beautiful.

[0039] The spacing width H between the two cap side walls 42 decreases linearly from the side close to the cap end wall 41 to the side away from the cap end wall 41. The minimum position of the spacing width H is smaller than the width between the side grooves 22, so that the two cap side walls 42 can be elastically expanded and then clamped into the end of the guide rail 2, improving the connection strength and making the anti-disengagement hook 43 more stably clamped into the clamping hole 221.

[0040] The extension length of the inner support block 44 is about equal to half of the length of the cap side wall 42, and the cap side wall 42 is spaced apart from the front and back of the anti-detachment hook 43, so that the inner support block 44 can avoid blocking the anti-detachment hook 43 from being buckled into the buckle hole 221.

[0041] The inner side wall of the cap side wall 42 is provided with a cap guide rail 45 along the length direction, and the anti-detachment hook 43 is arranged at the outer end side of the cap guide rail 45, so as to ensure the connection strength between the end buckle cap 4 and the guide rail 2 and prevent the two from shaking up and down.

[0042] The inner support block 44 is arranged between the two cap guide rails 45, and the inner support block 44 is spaced apart from the left and right of the cap guide rail 45.

[0043] The lever support assembly 3 comprises a yoke-shaped support 31 and two bridge-shaped supports 32, both ends of the yoke-shaped support 31 are provided with a rotating shaft part 321, and the middle positions of the two bridge-shaped supports 32 are rotationally connected to the rotating shaft part 321, and both ends of each bridge-shaped support 32 are provided with a set of clamping claws 301, and the clamping claws 301 on the bridge-shaped support 32 form part of the sets of clamping claws 301.

[0044] The lever support assembly 3 further comprises a middle outer sheath 33 and two end outer sheaths 34, the middle outer sheath 33 is buckled to the middle outer side of the yoke-shaped support 31, and the two end outer sheaths 34 are rotationally connected to the end outer sides of the yoke-shaped support 31, and the outer end of each end outer sheath 34 extends a set of clamping claws 301, and the clamping claws 301 on the end outer sheath 34 form another part of the sets of clamping claws 301.

[0045] The lever support assembly 3 only comprises the yoke-shaped support 31, the bridge-shaped support 32, the middle outer sheath 33 and the end outer sheath 34, so that the structure is simplified, the overall quality of the wiper is reduced, the production cost is reduced, the assembly and production process is simpler, and the production efficiency is improved.

[0046] Further comprising a buckle inner connecting frame 5 for connecting with the wiper arm 6, the buckle inner connecting frame 5 is provided with an open clamping groove 51, the middle of the yoke-shaped support 31 is correspondingly provided with a connecting clamping shaft 311, the lever support assembly 3 is detachably connected to the buckle inner connecting frame 5 through the cooperation of the connecting clamping shaft 311 and the open clamping groove 51, and the whole lever support assembly 3 can be detached from the wiper arm 6 through the buckle inner connecting frame 5, so that the detachment and replacement are facilitated.

[0047] Second embodiment: The difference between the second embodiment and the first embodiment is that, referring to Figure 10As shown, the bottom of the guide rail 2 is provided with three rubber strip installation grooves 21 arranged in horizontal direction, and one rubber strip 1 is embedded in each of the two outermost rubber strip installation grooves 21, and a brush 7 is embedded in the middle rubber strip installation groove 21. The brush 7 has greater hardness than the rubber strip 1, and can effectively scrape off the dry stains on the glass, so that the glass is cleaned more cleanly. In addition, in the embodiment, the length (marked as W1 in the drawing) of the brush 7 is slightly shorter than the length (marked as W2 in the drawing) of the rubber strip 1. This setting makes the brush 7 not affect the elastic fitting of the rubber strip 1 on the glass, so that the brush 7 and the rubber strip 1 can fully contact the glass, and the functions of stain cleaning and water scraping are realized.

[0048] The above is the preferred embodiment of the present application, which shows and describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-ribbed three-segment wiper blade characterized in that , comprising: A wiper rubber strip (1) is provided with two or more strips made of elastic material, and the lower part of each wiper rubber strip (1) is provided with two or more blades (101) arranged at intervals; A guide rail (2) is provided with two or more rubber strip mounting grooves (21) arranged in the horizontal direction at the bottom, and 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 to the side; A lever support assembly (3) is provided with a plurality of pairs of opposing clamps (301) arranged along the length direction of the guide rail (2), and the clamps (301) are connected in the side grooves (22); An end buckle cap (4) is connected to the end of the guide rail (2) to limit the movement of the wiper rubber strip (1) relative to the guide rail (2) and the guide rail (2) relative to the lever support assembly (3) in the length direction.

2. The multi-ribbed three-stage wiper of claim 1, wherein: The end buckle cap (4) includes a cap end wall (41) and cap side walls (42) on both sides of the cap end wall (41), and the inner side wall of the cap side wall (42) is provided with a non-removal hook (43); any side groove (22) is provided with a buckle hole (221) on the inner side wall close to the end; and the non-removal hook (43) is connected to the buckle hole (221).

3. The multi-strip three-stage wiper of claim 2, wherein: The two side grooves (22) are provided with an isolation groove (23) that is open at the top; the inner side wall of the cap end wall (41) extends forward along the symmetry line position to form an inner support block (44), which is tightly embedded in the isolation groove (23).

4. The multi-ribbed three-stage wiper of claim 1, wherein: The guide rail (2) includes a lower half guide rail body (2a), and the two or more rubber strip mounting grooves (21) are also T-shaped grooves and are arranged on the guide rail body (2a); the opening part (211) of the rubber strip mounting groove (21) is arranged on the bottom surface of the guide rail body (2a); The guide rail (2) further includes two inverted L-shaped parts (2b) in the upper half, which are symmetrically arranged and respectively combined with the guide rail body (2a) to define a square side groove (22), and the two inverted L-shaped parts (2b) are combined to define an isolation groove (23).

5. The multi-ribbed three-segment wiper blade of claim 3, wherein: 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 isosceles trapezoidal or approximately isosceles 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-strip three-stage wiper of claim 2, wherein: The non-removal hook (43) includes two groups of end faces; one group of end faces includes a first inclined guide face (431) and a second inclined guide face (432), and the inclination angles of the first inclined guide face (431) and the second inclined guide face (432) are different; the other group of end faces is a non-removal hook face (433), which is inclined inwardly.

7. The multi-ribbed three-stage wiper of claim 1, wherein: The guide rail (2) is provided with three or more rubber strip installation grooves (21) arranged in horizontal direction, and one rubber strip (1) is embedded in each of the two outermost rubber strip installation grooves (21), and at least one of the remaining rubber strip installation grooves (21) is embedded with a brush (7), and the length of the brush (7) is slightly shorter than that of the rubber strip (1).

8. The multi-ribbed three-stage wiper of claim 1, wherein: The lever support assembly (3) comprises a yoke-shaped support (31) and two bridge-shaped supports (32), the two ends of the yoke-shaped support (31) are provided with rotating shaft portions (321), the middle positions of the two bridge-shaped supports (32) are rotatably connected to the rotating shaft portions (321), and the two ends of each bridge-shaped support (32) are provided with a set of clamping claws (301), and the clamping claws (301) on the bridge-shaped supports (32) form part of the array of clamping claws (301).

9. The multi-ribbed three-stage wiper of claim 8, wherein: The lever support assembly (3) further comprises a middle outer sheath (33) and two end outer sheaths (34), the middle outer sheath (33) is buckled to the outer side of the middle of the yoke-shaped support (31), and the two end outer sheaths (34) are rotatably connected to the outer sides of the ends of the yoke-shaped support (31), and the outer end of each end outer sheath (34) extends a set of clamping claws (301), and the clamping claws (301) on the end outer sheaths (34) form another part of the array of clamping claws (301).

10. The multi-ribbed three-stage wiper of claim 8, wherein: Further comprising a buckle inner connecting frame (5) for connecting with the wiper arm (6), the buckle inner connecting frame (5) is provided with an open clamping groove (51), the middle of the yoke-shaped support (31) is correspondingly provided with a connecting clamping shaft (311), and the lever support assembly (3) can be detachably connected to the buckle inner connecting frame (5) through the cooperation of the connecting clamping shaft (311) and the open clamping groove (51).

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