A combined automobile wiper

Abstract

The utility model discloses a combined automobile wiper relates to wiper technical field, including base and upper cover, the one end of upper cover bottom is equipped with the hook of plastic material quality incomplete annular, the bottom of base top is equipped with the rotation groove of corresponding end, and it is installed with the rotation bar in, the outside of rotation bar is equipped with the inclined plane of forming the rotation connection with hook, another end of base and upper cover is equipped with two fixed plate respectively, and two fixed plate between are connected through having detachable fastener. In the utility model, set up hook and rotation bar, utilize the plastic material quality and incomplete shape and inclined plane of hook and make hook elastic card into rotation bar, realize the quick disassembly of base and upper cover, set up fixed plate and detachable fastener and further increase the connection between base and upper cover, use the mode of rotation, compared with traditional plug -in type, can reduce dust accumulation influence use effect, spring piece and positioning block adopt the mode of detachable separate replacement, further reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of windshield wiper technology, and in particular to a combined automotive windshield wiper. Background Technology

[0002] Windshield wipers are an important component of a car, mainly used to clean obstructions (rainwater, snow, dust, mud, etc.) from the windshield. They are mainly composed of a connector, deflector, clip, spring, and rubber strip.

[0003] A search revealed Chinese patent publication number CN222973357U, which discloses a multi-functional connector adapter for windshield wipers. The adapter includes a connector base with a mounting cavity on its surface. A top cover is positioned above the connector base, and the bottom of the top cover interlocks with the mounting cavity. Four steel clips are integrally injection-molded onto the inner wall of the bottom of the connector base, and a clip groove is formed on one side of each of the four steel clips on the surface of the connector base. Bases are provided on both sides of the bottom of the top cover, and these bases are integrally injection-molded with the connector base. The bases fit snugly against the inner wall of the mounting cavity, increasing the stability of the top cover and connector base during installation. Simultaneously, the steel clips and clip grooves cooperate to facilitate the installation of the connector base, solving the problem of bolt fixation required in existing technologies, reducing the labor intensity during wiper adapter installation, and improving the work efficiency during wiper adapter installation.

[0004] However, in actual use, it was found that both the aforementioned patented and traditional wipers are assembled by pressing and snapping, which is prone to wear and tear after long-term use, rendering them unusable. However, they are usually integrated with the connector, so they can only be replaced as a whole. Furthermore, dust easily accumulates at the point where the snapping is released, affecting the snapping accuracy. Summary of the Invention

[0005] The purpose of this utility model is to provide a combined car windshield wiper to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a combined car windshield wiper, comprising a base and a top cover. A partially annular hook made of plastic is installed at one end of the bottom of the top cover. A rotating groove is provided at the corresponding end of the top of the base, in which a rotating rod is installed. An inclined surface is provided on the outer side of the rotating rod to form a rotatable connection with the hook. Two fixing plates are respectively installed at the other ends of the base and the top cover. The two fixing plates are connected by a detachable fastener. A rotating hole is provided between the two fixing plates. The detachable fastener includes a positioning block that passes through the rotating hole. A rotating plate is installed on the top end of the positioning block that extends out of the two fixing plates. An Ω-shaped spring is sleeved on the lower end of the positioning block that extends out of the bottom fixing plate. A positioning groove adapted to the size of the spring is provided at the lower end of the positioning block.

[0007] Preferably, magnets are embedded in the top of the spring sheet and the bottom of the bottom fixing plate.

[0008] Preferably, the top of the spring sheet is further provided with a plurality of mutually symmetrical limiting blocks, and the bottom of the fixing plate is provided with a limiting groove that matches the size of the limiting blocks.

[0009] Preferably, the outer side of the rotating plate is provided with multiple arc-shaped anti-slip grooves in an array, and the lower end of the positioning block is a cone with a gradually decreasing diameter and an arc-shaped transition at the bottom.

[0010] Preferably, the top of the cover has a mounting hole through which the vehicle wiper arm passes, the other end of the top of the base has a hanging groove that matches the size of the vehicle wiper arm, and the sides of the base have grooves that match the size of the cover.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this application, a hook and a rotating rod are provided. The hook is made of plastic and has an incomplete shape and a bevel, so that the hook can be elastically engaged with the rotating rod, which can realize the quick assembly and disassembly of the base and the top cover. This can avoid the problem of needing to replace the whole structure when the local part is damaged, thus reducing maintenance costs.

[0012] 2. In this application, the fixed plate and detachable fasteners further enhance the connection between the base and the top cover. When the spring plate is stuck in the positioning groove of the positioning block, the position of the positioning block is locked and cannot be moved, thus fixing the base and the top cover. When the positioning block is rotated, the spring plate disengages from the positioning groove, thereby releasing the fixing of the base and the top cover. Compared with the traditional plug-in type, the rotation method can reduce dust accumulation and its impact on the use effect. The spring plate and positioning block are detachable and replaceable separately, which can avoid the problem of needing to replace the whole structure when the part is damaged in the traditional integrated structure, further reducing maintenance costs. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown; Figure 2 A bottom view of the top cover structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the base structure provided according to an embodiment of the present utility model is shown; Figure 4 A schematic diagram of the combined assembly structure of the base and the top cover according to an embodiment of the present utility model is shown; Figure 5 A cross-sectional side view of the internal structure of the fixing plate provided according to an embodiment of the present utility model is shown; Figure 6 A schematic diagram of the connection structure between the positioning block and the rotating plate according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of a spring sheet structure according to an embodiment of the present invention is shown.

[0014] Legend: 1. Base; 101. Rotating groove; 102. Groove; 103. Hanging groove; 2. Top cover; 201. Mounting hole; 3. Hook; 4. Rotating rod; 401. Bevel; 5. Fixing plate; 501. Rotating hole; 502. Limiting groove; 6. Removable fastener; 7. Side plate; 8. Locking block; 9. Positioning block; 901. Positioning groove; 10. Rotating plate; 1001. Anti-slip groove; 11. Spring sheet; 1101. Through hole; 12. Limiting block; 13. Magnet. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6 This utility model provides a technical solution: a combined car windshield wiper, including a base 1 and a top cover 2. A plastic hook 3 in a partially annular shape is installed at one end of the bottom of the top cover 2. A rotating groove 101 is provided at the corresponding end of the top of the base 1, and a rotating rod 4 is installed in it. An inclined surface 401 that forms a rotatable connection with the hook 3 is opened on the outer side of the rotating rod 4. Two fixing plates 5 are respectively installed at the other ends of the base 1 and the top cover 2. The two fixing plates 5 are connected by a detachable fastener 6. A rotating hole 501 is opened between the two fixing plates 5. A through hole 1101 that matches the size of the rotating hole 501 is opened on the spring plate 11 for the positioning block 9 to pass through and press against the inner side of the spring plate 11. The detachable fastener 6 includes a positioning block 9 that passes through the rotating hole 501. A rotating plate 10 is installed on the top end of the positioning block 9 that extends out of the two fixing plates 5. An Ω-shaped spring plate 11 is sleeved on the lower end of the positioning block 9 that extends out of the bottom fixing plate 5. A positioning groove 901 that matches the size of the spring plate 11 is opened at the lower end of the positioning block 9. Traditional connection methods use a one-piece structure, requiring replacement of the entire unit in case of partial damage. To reduce maintenance costs, a combined connection between the base 1 and the top cover 2 is designed. If the hook 3 is damaged, only the top cover 2 needs to be replaced, which is more cost-effective than traditional connection methods. To achieve a detachable rotating connection between the hook 3 and the rotating rod 4, the hook 3 is designed as a partially ring structure. Compared to a fully closed ring structure, the partially ring structure allows for an installation deviation of ±1.5mm, reducing precision machining costs. The elastic deformation of the plastic material enables quick engagement and disengagement. Unlike some wipers that require tools to disassemble, no special tools are needed, allowing for manual operation. To reduce the frictional resistance between the hook 3 and the rotating rod 4, a 401-degree slope is designed to reduce the force required to disassemble the hook 3 (the steeper the slope, the less effort is required). Traditional windshield wipers use a press-and-lock mechanism, which is prone to wear and tear after long-term use, rendering them unusable. However, they are usually connected in one piece with a groove, so the entire wiper must be replaced after wear, which increases maintenance costs. The detachable fastener 6 is designed to be unlocked by rotating. Compared to the traditional plug-in type, the rotating plate 10 always covers the rotating hole 501, which can prevent dust from entering the rotating hole 501 and affecting the performance. The top of the cover 2 has a mounting hole 201 for the vehicle wiper arm to pass through, and the other end of the top of the base 1 has a hanging groove 103 that matches the size of the vehicle wiper arm. The sides of the base 1 have grooves 102 that match the size of the cover 2. The mounting hole 201 and the hanging groove 103 are mainly used for the vehicle wiper arm to pass through and directly connect to the drive end of the wiper. The groove 102 is used to ensure the precise assembly of the base 1 and the upper cover 2, eliminate installation deviation through lateral constraint, and prevent dust accumulation from affecting the engagement accuracy.

[0017] Side plates 7 are installed on both sides of the bottom of the base 1. Two locking blocks 8 are symmetrically installed on the inner side of the side plates 7. The base 1 is slidably set on the outside of the guide plate. The locking blocks 8 and the hooks 3 are made of the same material (plastic nylon). The guide plate has a slot that matches the size of the locking blocks 8. By locking the locking blocks 8 in the slot, the base 1 and the guide plate are fixed.

[0018] The top cover 2, hook 3 and top fixing plate 5 are integrally injection molded, and the base 1, rotating rod 4, bottom fixing plate 5, side plate 7 and clamping block 8 are integrally injection molded. The integral injection molding eliminates the weakness of bolt or buckle connection in traditional assembly, reduces the risk of loosening, cracking or deformation, reduces the number of parts and assembly steps, and directly reduces labor and material costs.

[0019] Specifically, such as Figure 5 and Figure 7As shown, magnets 13 are embedded at the top of the spring sheet 11 and the bottom of the bottom fixing plate 5. The addition of magnets 13 plays an auxiliary role in positioning, reducing the difficulty of manual alignment during disassembly and assembly, and improving operational efficiency.

[0020] Specifically, such as Figure 5 and Figure 7 As shown, a plurality of mutually symmetrical limiting blocks 12 are also installed on the top of the spring plate 11. The bottom end of the bottom fixing plate 5 is provided with a limiting groove 502 that matches the size of the limiting block 12. The symmetrical limiting blocks 12 on the top of the spring plate 11 and the limiting groove 502 at the bottom end of the bottom fixing plate 5 cooperate with each other to limit the lateral displacement of the spring plate 11 through mechanical engagement, ensuring that it maintains a stable position under vehicle vibration or dynamic load, and avoiding fastening failure due to displacement.

[0021] Specifically, such as Figure 5 and Figure 6 As shown, multiple arc-shaped anti-slip grooves 1001 are installed in an array on the outer side of the rotating plate 10. The anti-slip grooves 1001 increase the surface friction coefficient and improve the anti-slip performance during operation, ensuring that the rotating plate is not easy to slip or slip when manually rotating. The bottom of the positioning block 9 is a cone with a gradually decreasing diameter and an arc transition at the bottom. This geometric design can effectively reduce the contact resistance with the spring plate 11 when pressed.

[0022] In summary, the combined car windshield wiper provided in this embodiment, when assembling the upper cover 2: the upper cover 2 is placed on the base 1 so that it is located in the groove 102 of the base 1, and then the base 1 is pressed. The hook 3 at the bottom of the base 1 contacts the inclined surface 401 of the rotating rod 4 and is deformed by compression to fit on the outside of the rotating rod 4, thereby completing the assembly of the upper cover 2 and the base 1. When assembling the detachable fastener 6: first close the top cover 2 and the base 1, then place the spring plate 11 at the bottom end of the bottom fixing plate 5. The magnet 13 on the bottom fixing plate 5 and the spring plate 11 attract each other. Then rotate the spring plate 11 so that the limiting block 12 is aligned with the limiting groove 502 at the bottom end of the bottom fixing plate 5 to complete the installation of the spring plate 11. Then insert the positioning block 9 into the rotating hole 501 of the top and bottom fixing plates 5 in sequence. At this time, the tapered area at the bottom of the positioning block 9 is pressed and contacted with the spring plate 11, and the spring plate 11 is fixed in the positioning groove 901, thereby completing the assembly of the detachable fastener 6. Disassembly: When disassembling the detachable fastener 6, rotate the rotating plate 10. The rotating plate 10 drives the positioning block 9 to rotate. The positioning block 9 squeezes the spring sheet 11 to unfold and release the limitation on the positioning block 9. At this time, move the rotating plate 10 upward to pull out the positioning block 9 for separate disassembly. Repeat the reverse steps of the above operation to disassemble the spring sheet 11 and the top cover 2.

[0023] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined automotive windshield wiper, characterized in that, The device includes a base (1) and a top cover (2). One end of the bottom of the top cover (2) is equipped with a plastic hook (3) that is not completely circular. The top of the base (1) is provided with a rotating groove (101) and a rotating rod (4) is installed inside it. The outer side of the rotating rod (4) is provided with an inclined surface (401) that forms a rotatable connection with the hook (3). The other ends of the base (1) and the top cover (2) are respectively equipped with two fixing plates (5). The two fixing plates (5) are connected by a detachable fastener (6). A rotating hole (501) is provided between the two fixing plates (5). The detachable fastener (6) includes a positioning block (9) that passes through the rotating hole (501). A rotating plate (10) is installed on the top of the positioning block (9) that extends out of the two fixing plates (5). An Ω-shaped spring plate (11) is sleeved on the bottom end of the positioning block (9) that extends out of the bottom fixing plate (5). A positioning groove (901) that matches the size of the spring plate (11) is provided at the bottom end of the positioning block (9).

2. The combined car windshield wiper according to claim 1, characterized in that, Magnets (13) are embedded in the top of the spring sheet (11) and the bottom of the bottom fixing plate (5).

3. A combined automotive windshield wiper according to claim 2, characterized in that, The top of the spring sheet (11) is also equipped with a plurality of mutually symmetrical limiting blocks (12), and the bottom of the fixing plate (5) is provided with a limiting groove (502) that matches the size of the limiting block (12).

4. A combined automotive windshield wiper according to claim 1, characterized in that, The outer side of the rotating plate (10) is equipped with multiple arc-shaped anti-slip grooves (1001) in an array. The bottom of the positioning block (9) is a cone with a gradually decreasing diameter and an arc-shaped transition at the bottom.

5. A combined automotive windshield wiper according to claim 1, characterized in that, The top of the cover (2) has an installation hole (201) through which the vehicle wiper arm passes, and the other end of the top of the base (1) has a hanging groove (103) that matches the size of the vehicle wiper arm. The two sides of the base (1) have grooves (102) that match the size of the cover (2).

Images