A brush head adaptable to two rocker arms
Patent Information
- Application Number
- CN202522729230.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-23
AI Technical Summary
目前，市面上的汽车雨刷接头普遍采用单一适配结构设计，即一款接头仅能匹配特定车型或特定规格的雨刷摇臂，这种设计在汽车生产及售后市场中存在明显的局限性
[0010]与现有技术相比，本申请的可适配两种摇臂的刷头采用双滑槽与双弹体组合结构，使一款接头可分别稳定适配两种不同规格的汽车雨刷摇臂，无需为不同车型摇臂单独设计接头。这对生产企业而言，可减少研发和模具投入，简化生产线，降低库存压力；对售后市场而言，可减少接头备货品类，提升维修时的适配效率，对终端用户而言，降低了选购难度和更换成本，显著提升了产品的市场适用性。第一摇臂通过第一弹体卡块与插槽的精准卡接，实现刚性定位与柔性配合的结合；第二摇臂通过第二弹体与凹槽的弹性卡接，形成可靠锁合。两种连接方式均能有效抵抗雨刷摆动时的离心力和冲击力，防止接头松动、异响或脱离，确保雨刷始终贴合挡风玻璃，保证刮刷清晰度，提升行车安全。此外，弹体式卡接结构无需专用工具，无论是汽车生产线的批量装配还是售后市场的维修更换，工作人员均可快速完成摇臂的插拔操作，大幅提升装配效率。弹体的弹性形变还能缓冲插拔过程中的冲击力，减少接头与摇臂的磨损，配合耐候性材料选用，可延长接头在户外恶劣环境下的使用寿命，降低售后故障率。
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Figure CN224915883U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of wiper technology, and more specifically, relates to a brush head that can be adapted to two types of rocker arms. Background Technology
[0002] In automotive wiper systems, the wiper connector, as a core adapter component connecting the wiper blade and the wiper arm, directly determines the wiping effect, assembly efficiency, and lifespan of the wiper. Currently, most automotive wiper connectors on the market adopt a single-fit structure design, meaning that one connector can only match a specific car model or a specific size of wiper arm. This design has significant limitations in automotive production and the aftermarket.
[0003] On the one hand, for automobile manufacturers and parts suppliers, adapting to the rocker arm specifications of different car models requires the separate research and development and mold production of various wiper head structures. This not only significantly increases product development costs, mold costs, and manufacturing costs, but also leads to a complex production line, serious inventory backlog, and puts enormous pressure on production scheduling and inventory management. On the other hand, for the automotive aftermarket and end users, replacing wiper heads requires precise matching to the vehicle's rocker arm specifications. If the head and rocker arm do not match, the wiper head cannot be used. This not only increases the difficulty of selection and usage costs for users, but also reduces the convenience and efficiency of after-sales maintenance, especially in emergency replacement scenarios where it can easily delay use. Utility Model Content
[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this application is to provide a brush head that can be adapted to two types of wiper arms. It has a simple and compact structure, can be used with at least two types of wiper arms, is convenient and quick, and improves adaptability and versatility.
[0005] The technical means adopted in this application to solve the above-mentioned technical problems are: This application provides a brush head that can be adapted to two types of rocker arms, including: The main body has a first sliding groove and a second sliding groove along its long axis, and the main body has a first slot communicating with the first sliding groove and a second slot communicating with the second sliding groove. A first projectile is installed in the first slot, and a locking block is provided on the side of the first projectile facing the first slot. The second projectile has one side connected to the side wall of the second slide groove; A first rocker arm is inserted into the first sliding groove. The first rocker arm is provided with a slot corresponding to the locking block, and the locking block is engaged with the slot. The second rocker arm is inserted into the second slide groove. The second rocker arm is provided with a groove corresponding to the second projectile, and the second projectile is engaged in the groove.
[0006] Preferably, the second groove is inclined.
[0007] Preferably, the outer wall of the main body is provided with an indicator arrow.
[0008] Preferably, the outer wall of the second projectile is provided with anti-slip texture.
[0009] Preferably, one end of the first projectile is connected to the first slot, and the other end of the first projectile is provided with a lever.
[0010] Compared with existing technologies, the brush head of this application, which is compatible with two types of wiper arms, adopts a combination structure of double grooves and double springs. This allows one connector to stably adapt to two different specifications of automotive wiper arms, eliminating the need to design separate connectors for different car models. For manufacturers, this reduces R&D and mold investment, simplifies production lines, and reduces inventory pressure. For the aftermarket, it reduces the types of connectors to stock and improves compatibility during repairs. For end users, it reduces the difficulty of selection and replacement costs, significantly improving the product's market applicability. The first wiper arm achieves a combination of rigid positioning and flexible fit through the precise engagement of the first spring block and the slot; the second wiper arm forms a reliable lock through the elastic engagement of the second spring and the groove. Both connection methods effectively resist the centrifugal force and impact force during wiper oscillation, preventing connector loosening, abnormal noise, or detachment, ensuring that the wiper always stays in contact with the windshield, guaranteeing clear wiping, and improving driving safety. Furthermore, the projectile-type snap-fit structure requires no special tools. Whether in mass assembly on an automotive production line or in aftermarket repair and replacement, workers can quickly complete the insertion and removal of the rocker arm, significantly improving assembly efficiency. The elastic deformation of the projectile also buffers the impact force during insertion and removal, reducing wear on the connector and rocker arm. Combined with the selection of weather-resistant materials, this extends the service life of the connector in harsh outdoor environments and reduces aftermarket failure rates. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the structure of the brush head that can be adapted to two types of rocker arms according to this application.
[0013] Figure 2This is an exploded view of the brush head that is compatible with two types of rocker arms according to this application.
[0014] Figure 3 This is a schematic diagram of the brush head structure of this application, which is compatible with two types of rocker arms, from another angle.
[0015] Marker explanation: 1. Main body; 1a. First slide groove; 1b. Second slide groove; 2. First projectile; 3. Second projectile; 4. First rocker arm; 4a. Slot; 5. Second rocker arm; 5a. Groove. Detailed Implementation
[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0017] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. Similar reference numerals and letters denote similar items in the following figures; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0018] like Figures 1-3As shown, this embodiment provides a brush head adaptable to two types of rocker arms, including a main body 1, a first spring 2, a second spring 3, a first rocker arm 4, and a second rocker arm 5. The main body 1 is provided with a first sliding groove 1a and a second sliding groove 1b along its long axis. The main body 1 is provided with a first slot communicating with the first sliding groove 1a and a second slot communicating with the second sliding groove 1b. The first spring 2 is installed in the first slot, and a locking block is provided on the side of the first spring 2 facing the first sliding groove 1a. One side of the second spring 3 is connected to the side wall of the second sliding groove 1b. The first rocker arm 4 is inserted into the first sliding groove 1a, and the first rocker arm 4 is provided with a slot 4a corresponding to the locking block, and the locking block is engaged in the slot 4a. The second rocker arm 5 is inserted into the second sliding groove 1b, and the second rocker arm 5 is provided with a groove 5a corresponding to the second spring 3, and the second spring 3 is engaged in the groove 5a.
[0019] It should be noted that when using the brush head of this application, only one of the first rocker arm 4 and the second rocker arm 5 is inserted into the corresponding groove.
[0020] In some preferred embodiments of this invention, the second groove 1b is inclined. This allows for precise matching between the inclined second groove 1b and the corresponding inclined second rocker arm 5, ensuring the assembled wiper blade fully conforms to the curved surface of the windshield and optimizes the wiping trajectory coverage, especially for vehicles with curved windshields. The inclined rocker arm helps maintain uniform pressure on the wiper blade during up-and-down wiping, preventing blind spots or missed areas and improving wiping clarity in rainy weather. The driving force of the wiper arm needs to be efficiently transmitted to the wiper blade through the connector. The inclined groove design allows the force direction of the rocker arm and connector to better match the reciprocating oscillation trajectory of the wiper, reducing force loss and improving the efficiency of driving force transmission. Simultaneously, the inclined structure reduces frictional resistance when the rocker arm is inserted into the groove, making assembly smoother, especially in low-temperature environments where components may be slightly stiff. Furthermore, the inclined fit disperses radial stress during wiper oscillation, preventing localized stress concentration at the connector. During driving, vehicles encounter bumpy road conditions, requiring the wiper head to withstand additional vibration and impact. The engagement structure between the inclined groove and the second rocker arm 5 creates a wedge-shaped locking effect, which better resists the risk of axial loosening caused by vibration compared to a horizontal groove. Simultaneously, the inclined installation increases the contact area between the rocker arm and the head, resulting in a more uniform stress distribution. This avoids fatigue damage to the head caused by long-term vibration, improving structural reliability under complex road conditions.
[0021] In some preferred embodiments of this invention, the outer wall of the main body 1 is provided with indicator arrows. In this way, given the fast pace of automotive production line assembly and the tight schedule of after-sales maintenance, the indicator arrows can clearly indicate the correct insertion direction and assembly position of the two rocker arms. Workers can quickly complete the assembly without repeatedly checking specifications or consulting manuals, significantly improving operational efficiency. At the same time, it can effectively avoid damage to the connector or rocker arm caused by incorrect insertion, reducing rework costs, and is especially instructive for novice repair personnel. For automotive manufacturers and repair service providers, clear indicator markings can simplify employee training processes and reduce the cost of explaining assembly specifications. For end users who replace connectors themselves, the arrow indicators can reduce operational difficulty, reduce after-sales consultations or returns due to assembly errors, and improve product user experience and market acceptance.
[0022] In some preferred embodiments of this invention, the outer wall of the second projectile 3 is provided with anti-slip texture. In automotive repair scenarios, where workers' hands may be contaminated with oil, water, or they may be wearing gloves, the anti-slip texture significantly increases the friction between the fingers and the projectile, preventing slippage when pressing the projectile and ensuring precise force application to deform it, facilitating quick disassembly or adjustment of the rocker arm. Especially during emergency repairs in rainy weather, the anti-slip design improves operational stability and prevents delays caused by slipping. Wiper joints are constantly exposed to the elements, making the projectile susceptible to aging due to UV radiation and rainwater erosion. The anti-slip texture, while increasing friction, forms micro-structural reinforcements on the projectile surface, enhancing its resistance to aging and deformation. Simultaneously, the anti-slip texture design does not affect the projectile's elasticity, reducing wear on the surface from prolonged pressing operations and ensuring reliable engagement even after long-term use, extending the overall lifespan of the joint.
[0023] In some preferred embodiments of this utility model, one end of the first projectile 2 is connected to the first slot, and the other end of the first projectile 2 is provided with a lever. Thus, after long-term use, the engagement point between the projectile and the rocker arm may become tightly fitted due to dust accumulation and slight corrosion, increasing the difficulty of disassembly. The lever provides workers with a clear and concentrated point of force application; a simple flick of the lever can deform the first projectile 2, allowing the locking block to quickly disengage from the rocker arm slot 4a without the need for prying tools, greatly simplifying the disassembly process and improving the efficiency of after-sales maintenance or wiper blade replacement. This is especially suitable for the confined space of the engine compartment wiper installation environment. In traditional projectile disassembly without a lever, workers need to directly pry the projectile body 1, which can easily lead to deformation, breakage, or detachment of the connecting end. The lever makes the force more even and concentrated at the end of the projectile, effectively preventing damage to the projectile body 1 due to uneven force and protecting the integrity of the projectile's elastic structure. Meanwhile, the lever can reduce the frequency of direct hand contact with the projectile, reduce the corrosion of the projectile by sweat and oil, and, together with weather-resistant materials, further extend the service life of the projectile and connector, ensuring connection stability after long-term use.
[0024] Compared with existing technologies, the brush head of this application, which is compatible with two types of wiper arms, adopts a combination structure of double grooves and double springs, allowing one connector to stably adapt to two different specifications of automotive wiper arms without the need to design separate connectors for different car models. For manufacturers, this reduces R&D and mold investment, simplifies production lines, and reduces inventory pressure; for the aftermarket, it reduces the types of connectors to stock and improves compatibility during repairs; for end users, it reduces the difficulty of selection and replacement costs, significantly improving the market applicability of the product. The first wiper arm 4 achieves a combination of rigid positioning and flexible fit through the precise engagement of the first spring 2 and the slot 4a; the second wiper arm 5 forms a reliable lock through the elastic engagement of the second spring 3 and the groove 5a. Both connection methods can effectively resist the centrifugal force and impact force during wiper swing, preventing the connector from loosening, making abnormal noises, or detaching, ensuring that the wiper always keeps in contact with the windshield, guaranteeing clear wiping, and improving driving safety. Furthermore, the projectile-type snap-fit structure requires no special tools. Whether in mass assembly on an automotive production line or in aftermarket repair and replacement, workers can quickly complete the insertion and removal of the rocker arm, significantly improving assembly efficiency. The elastic deformation of the projectile also buffers the impact force during insertion and removal, reducing wear on the connector and rocker arm. Combined with the selection of weather-resistant materials, this extends the service life of the connector in harsh outdoor environments and reduces aftermarket failure rates.
[0025] The above description is merely a specific embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should also be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A brush head adaptable to two types of rocker arms, characterized in that, include: The main body has a first sliding groove and a second sliding groove along its long axis, and the main body has a first slot communicating with the first sliding groove and a second slot communicating with the second sliding groove. A first projectile is installed in the first slot, and a locking block is provided on the side of the first projectile facing the first slot. The second projectile has one side connected to the side wall of the second slide groove; A first rocker arm is inserted into the first sliding groove. The first rocker arm is provided with a slot corresponding to the locking block, and the locking block is engaged with the slot. The second rocker arm is inserted into the second slide groove. The second rocker arm is provided with a groove corresponding to the second projectile, and the second projectile is engaged in the groove.
2. The brush head adaptable to two types of rocker arms according to claim 1, characterized in that, The second chute is inclined.
3. The brush head adaptable to two types of rocker arms according to claim 1, characterized in that, The outer wall of the main body is provided with indicator arrows.
4. The brush head adaptable to two types of rocker arms according to claim 1, characterized in that, The outer wall of the second projectile is provided with anti-slip texture.
5. The brush head adaptable to two types of rocker arms according to claim 1, characterized in that, One end of the first projectile is connected to the first slot, and the other end of the first projectile is provided with a lever.