Wiper connection device

Abstract

The present invention relates to a windshield wiper connection device, comprising a base and a connection member, wherein the connection member is connected to a wiper arm, the base is connected to the middle of a wiper strip, a rotation groove is provided on the side of the base facing the connection member, a connection plate embedded in the rotation groove is fixed on the side wall of the connection member, a limit plate for contacting the connection plate is fixed on the inner wall of the rotation groove, and the connection member is fixedly connected to the base through an elastic positioning assembly when the connection member rotates in the rotation groove and contacts the limit plate. The present invention has the following advantages and effects: the scheme utilizes a new mechanical structure to achieve the purpose of facilitating the replacement of the wiper strip.

Description

Technical Field

[0001] The invention relates to a windshield wiper connecting device. Background Art

[0002] Windshield wipers are common components on cars.

[0003] At present, the existing wiper mainly consists of three parts, namely, the scraper strip, the connecting piece and the base. One end surface of the scraper strip is made of rubber material, which is used to contact the glass; the base is fixed to the middle of the scraper strip; the connecting piece is connected to the wiper arm on the car. The connecting piece and the base are usually connected by bolts.

[0004] Since the scraper strip is a consumable part, it is very easy to be damaged after being exposed to the high temperature in summer. Therefore, a screwdriver is needed to unscrew the bolt, which makes replacement inconvenient. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a windshield wiper connecting device, which can facilitate the replacement of the wiper strip by relatively rotating the connecting member and the base to separate them.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wiper connecting device, comprising a base and a connecting member, the connecting member is connected to the wiper arm, the base is connected to the middle part of the wiper strip, a rotation groove is provided on the side of the base facing the connecting member, a connecting plate embedded in the rotation groove is fixed on the side wall of the connecting member, a limiting plate for contacting with the connecting plate is fixed on the inner wall of the rotation groove, and when the connecting member rotates in the rotation groove and contacts with the limiting plate, the connecting member is fixedly connected to the base through an elastic positioning assembly.

[0007] By adopting the above technical solution, the base is aligned with the connecting piece so that the connecting piece is located in the rotating groove, and then the base and / or the connecting piece is rotated to generate relative rotation between the base and the connecting piece, so that the connecting plate and the limit plate are in conflict. At this time, the base and the connecting piece are fixedly connected through the elastic positioning assembly; after the elastic positioning assembly releases the connecting piece, the connecting piece rotates in the opposite direction and can be separated from the base. The operation is simple, and the purpose of facilitating the replacement and installation of the scraper strip is achieved.

[0008] The present invention is further configured as follows: the elastic positioning assembly includes a positioning groove, an elastic plate and a clamping plate, the positioning groove is opened on the inner wall of the rotating groove, one end of the elastic plate is fixed on the connecting piece, and the other end extends in a direction away from the connecting piece, and the clamping plate is fixed on the elastic plate and is used to cooperate with the positioning groove.

[0009] By adopting the above technical solution, the connecting part is placed in the rotating groove, the connecting part is rotated, and the card plate is embedded in the positioning groove. The connecting part is positioned by the card plate contacting the inner wall of the positioning groove and the connecting plate contacting the limit plate, and the operation is simple. When the scraper strip needs to be replaced, the elastic plate is pushed to move the card plate out of the positioning groove, and the connecting part can be rotated.

[0010] The present invention is further configured as follows: a guiding inclined surface for contacting with a side wall of the base is provided on one side of the clamping plate facing the positioning groove.

[0011] By adopting the above technical solution, when the connecting member needs to be connected to the base, the connecting member is rotated, the guiding inclined surface contacts the side wall of the base, the elastic plate bends automatically, and the card plate is placed in the rotating groove. As the connecting member continues to rotate, when the card plate corresponds to the positioning groove, the elastic force of the elastic plate itself can make the card plate embedded in the positioning groove, thereby further achieving the effect of facilitating installation.

[0012] The present invention is further configured such that a guide assembly is provided between the connector and the base to facilitate alignment.

[0013] By adopting the above technical solution, it is possible to easily place the connecting piece in the rotating groove.

[0014] The present invention is further configured as follows: the guide assembly comprises a guide ring and a guide groove, the guide ring is fixed on the rotation groove, the guide groove is provided on the connecting piece, and the guide ring cooperates with the guide groove.

[0015] By adopting the above technical solution, the connecting piece is moved toward the base, and the guide groove is sleeved on the guide ring. The guide ring abuts against the inner wall of the guide groove, so that the connecting piece rotates more smoothly, further achieving the effect of easy installation.

[0016] The present invention is further configured as follows: a guiding arc surface is provided at one end of the guiding ring facing the guiding groove.

[0017] By adopting the above technical solution, it is convenient to insert the guide ring into the guide groove.

[0018] In summary, the present invention has the following beneficial effects:

[0019] Align the base with the connecting piece so that the connecting piece is located in the rotating groove, and then rotate the base and / or the connecting piece to generate relative rotation between the base and the connecting piece, so that the connecting plate and the limit plate are in conflict. At this time, the base and the connecting piece are fixedly connected through the elastic positioning assembly; after the elastic positioning assembly releases the connecting piece, the connecting piece rotates in the opposite direction and can be separated from the base. The operation is simple, and the purpose of facilitating the replacement and installation of the scraper strip is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 A schematic diagram showing the structure of the base;

[0022] Figure 3 A schematic diagram showing the structure of the connecting piece.

[0023] Figure numerals: 11, base; 111, card slot; 12, connecting piece; 21, rotating slot; 22, connecting plate; 23, limiting plate; 3, elastic positioning assembly; 31, positioning slot; 32, elastic plate; 33, card plate; 34, mounting slot; 4, guide slope; 5, convex portion; 61, guide ring; 62, guide slot; 7, guide arc surface. DETAILED DESCRIPTION

[0024] The present invention will be further described with reference to the accompanying drawings.

[0025] like Figures 1 to 3 As shown, a windshield wiper connection device includes a base 11 and a connection member 12. The connection member 12 is connected to the wiper arm; the base 11 is connected to the middle of the wiper strip. A card slot 111 for fixed connection with the wiper strip is provided on the side of the base 11 facing away from the connection member 12.

[0026] A rotation groove 21 is provided on the side of the base 11 facing the connecting member 12, so that a U-shaped structure is formed on the surface of the base 11. A connecting plate 22 embedded in the rotation groove 21 is fixed on the side wall of the connecting member 12. A limiting plate 23 for contacting the connecting plate 22 is fixed on the inner wall of the rotation groove 21, and the one-way rotation and installation of the connecting member 12 are realized through the limiting plate 23.

[0027] When the connecting member 12 rotates in the rotating groove 21 and contacts the limiting plate 23 , the connecting member 12 is aligned with the base 11 . At this time, the connecting member 12 is fixedly connected to the base 11 through the elastic positioning assembly 3 .

[0028] The elastic positioning assembly 3 includes a positioning groove 31, an elastic plate 32 and a clamping plate 33. The positioning groove 31 is formed on the inner wall of the rotating groove 21. A mounting groove 34 is formed on the side wall of the connecting member 12, one end of the elastic plate 32 is fixed on the mounting groove 34, and the other end extends away from the connecting member 12. The clamping plate 33 is fixed on the elastic plate 32 and is used to cooperate with the positioning groove 31.

[0029] A guide slope 4 for contacting with the side wall of the base 11 is formed on one side of the clamping plate 33 facing the positioning groove 31 .

[0030] When in use, the base 11 and the connecting member 12 are arranged in a cross shape, so that the connecting member 12 is located in the rotating groove 21, and then the base 11 and / or the connecting member 12 are rotated to generate relative rotation between the base 11 and the connecting member 12. Until the connecting plate 22 conflicts with the limiting plate 23. At the same time, the guiding slope 4 on the card plate 33 conflicts with the side wall of the base 11 and bends the elastic plate 32 to generate elastic force, and the card plate 33 is placed in the rotating groove 21. When the connecting plate 22 conflicts with the limiting plate 23, the card plate 33 is embedded in the positioning groove 31 through the elastic force of the elastic plate 32, so that the base 11 and the connecting member 12 are fixedly connected and aligned, that is, the scraper strip is installed. The elastic plate 32 extends from the surface of the base 11 and forms a convex portion 5.

[0031] When the scraper strip needs to be replaced, the protrusion 5 is moved to bend the elastic plate 32 and move the clamping plate 33 out of the positioning groove 31. Then, the connecting member 12 and the base 11 are relatively rotated, and the connecting plate 22 is separated from the limiting plate 23. When the connecting plate 22 is rotated out of the rotating groove 21, the connecting member 12 can be separated from the base 11, which is easy to operate.

[0032] In order to facilitate the alignment of the connecting member 12 with the base 11 so that the connecting plate 22 is placed in the rotating groove 21 , a guide component is provided between the connecting member 12 and the base 11 for facilitating alignment.

[0033] The above-mentioned guide assembly includes a guide ring 61 and a guide groove 62. The guide ring 61 is fixed on the rotation groove 21; the guide groove 62 is opened on the connecting member 12, and the guide ring 61 and the guide groove 62 are matched.

[0034] One end of the guide ring 61 facing the guide groove 62 is provided with a guide arc surface 7 .

[0035] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A wiper connection device, comprising a base and a connecting piece, wherein the connecting piece is connected to the wiper arm, and the base is connected to the middle of the wiper strip, wherein: The base is provided with a rotation groove on one side facing the connecting member, a connecting plate embedded in the rotation groove is fixed on the side wall of the connecting member, a limiting plate used to interfere with the connecting plate is fixed on the inner wall of the rotation groove, and the connecting member is fixedly connected to the base through an elastic positioning component when the connecting member rotates in the rotation groove and interferes with the limiting plate. The elastic positioning component includes a positioning groove, an elastic plate and a clamping plate. The positioning groove is provided on the inner wall of the rotation groove, one end of the elastic plate is fixed on the connecting member, and the other end extends in a direction away from the connecting member, the clamping plate is fixed on the elastic plate and is used to cooperate with the positioning groove, and the clamping plate faces A guiding slope for interfering with the side wall of the base is provided on one side of the positioning groove, and a guiding assembly for facilitating alignment is provided between the connecting piece and the base, and the guiding assembly includes a guiding ring and a guiding groove, the guiding ring is fixed on the rotating groove, and the guiding groove is provided on the connecting piece, the guiding ring cooperates with the guiding groove, and the elastic plate extends from the surface of the base to form a convex portion. When the scraper strip needs to be replaced, the convex portion is moved to bend the elastic plate and move the card plate out of the positioning groove, and then the connecting piece and the base are rotated relative to each other, and the connecting plate is separated from the limiting plate. When the connecting plate is screwed out of the rotating groove, the connecting piece can be separated from the base.

2. A wiper connection device according to claim 1, characterized in that: One end of the guide ring facing the guide groove is provided with a guide arc surface.

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