Windshield wiper and vehicle

Abstract

The present disclosure provides a wiper and a car, belonging to the technical field of automobile parts. The wiper comprises a base, a transmission block, a first swing rod, a transmission frame assembly, a second swing rod and a support plate assembly. The transmission block is rotationally connected with the base, and has a first groove and a second groove in the axial direction. The first end of the first swing rod is sleeved with the transmission block and is slidingly connected with the transmission block. The second swing rod is rotationally connected with the second end of the first swing rod, and the support plate assembly is slidingly connected with the first swing rod. The first end has a limiting protrusion assembly. When the second swing rod is separated from the windshield of the car, the transmission frame assembly drives the limiting protrusion assembly to move out of the first groove. Then the first swing rod is pulled until the limiting protrusion assembly extends into the second groove, at which time the support plate assembly supports the connection between the first swing rod and the second swing rod. In this way, the second swing rod remains parallel to the windshield and is also supported by the support plate assembly, so it is not easily damaged by falling foreign objects.

Description

Technical Field

[0001] This disclosure relates to the field of automotive parts technology, and in particular to a windshield wiper and an automobile. Background Technology

[0002] Windshield wipers are mounted on the front side of a car's windshield to clear rain, snow, and dust from the windshield that obstruct the view.

[0003] In related technologies, a windshield wiper includes a base, a first swivel arm, and a second swivel arm. The base is installed inside the car body, and the first swivel arm is connected to the base. The second swivel arm is rotatably connected to the first swivel arm and is used to mount the wiper blades. In areas with outdoor temperatures below 0°C, such as during heavy snow or rain, after parking the car in an open-air parking lot, most users will pull the second swivel arm upwards to prevent the wiper blades from freezing. This separates the second swivel arm and the wiper from the windshield, at which point the second swivel arm is vertically upwards.

[0004] However, when foreign objects fall (such as tree branches), they may hit the second control arm, causing irreversible damage to the second control arm and wiper blades, resulting in property loss for the user. Summary of the Invention

[0005] This disclosure provides a windshield wiper and an automobile that can solve the technical problems existing in the related art. The technical solutions of the windshield wiper and the automobile are as follows.

[0006] In a first aspect, this disclosure provides a windshield wiper, which includes a base, a transmission block, a first rocker arm, a transmission frame assembly, a second rocker arm, and a support plate assembly;

[0007] The transmission block is rotatably connected to the base, and the transmission block has a first groove and a second groove along the axial direction, with the first groove being closer to the windshield than the second groove.

[0008] The first end of the first rocker arm is provided with a receiving cavity, the receiving cavity is wrapped around the transmission block and is slidably connected to the transmission block along the axial direction, and the interior of the first end has a limiting protrusion assembly, the limiting protrusion assembly extends into the first groove or the second groove;

[0009] The transmission frame assembly is at least partially located inside the receiving cavity, and the transmission frame assembly is used to drive the limiting protrusion assembly to extend and retract radially along the transmission block;

[0010] The second swing arm is rotatably connected to the second end of the first swing arm, and the second swing arm is used to connect to the windshield wiper.

[0011] The support plate assembly is slidably connected to the first swing arm and is located on the side of the first swing arm near the windshield. The support plate assembly is configured to avoid the second swing arm when the limiting protrusion assembly is located in the first groove, and to support the second swing arm when the limiting protrusion assembly is located in the second groove.

[0012] In one possible implementation, the limiting protrusion assembly includes an elastic element, a limiting block, and a protrusion. The inner wall of the receiving cavity is provided with a sliding groove. The limiting block is slidably connected to the sliding groove. The two ends of the elastic element are respectively connected to the bottom of the sliding groove and the limiting block. The protrusion is located on the side wall of the limiting block.

[0013] The transmission frame assembly includes a transmission frame, a button, and a pressure block. The two ends of the transmission frame are respectively connected to the button and the pressure block. The first end has a through hole, and the button extends out of the through hole.

[0014] When the button is pressed, the pressure block drives the limiting block to move out of the first groove or the second groove through the protrusion; when the button is released, the elastic element drives the limiting block to extend into the first groove or the second groove.

[0015] In one possible implementation, the transmission frame includes a ring and a plurality of connecting rods;

[0016] The circular ring encircles the transmission block, and the plurality of connecting rods are evenly arranged along the circumference of the transmission block. The two ends of the connecting rods are respectively connected to the circular ring and the button.

[0017] The pressure block is fixed to the side of the ring opposite to the connecting rod.

[0018] In one possible implementation, the end of the receiving cavity away from the base has a first magnet;

[0019] The transmission frame assembly has a second magnet at one end away from the base, and the first magnet and the second magnet attract each other.

[0020] In one possible implementation, the base has a third magnet on the side near the first swing arm;

[0021] The first end of the first pendulum has a fourth magnet on the side near the base, and the third magnet and the fourth magnet attract each other.

[0022] In one possible implementation, the support plate assembly includes a drive device and a support plate;

[0023] The driving device is used to drive the support plate to slide along the length direction of the first rocker arm.

[0024] In one possible implementation, the drive device includes a first gear, a second gear, and a transmission chain, wherein the first gear and the second gear are connected by the transmission chain.

[0025] The first gear is rotatably connected to the first end, and the transmission block has a first sawtooth structure, with the first gear meshing with the first sawtooth structure;

[0026] The second gear is rotatably connected to the second end, and the support plate has a second serrated structure, which meshes with the second gear.

[0027] In one possible implementation, the second end of the first pendulum has a slide bar, which is parallel to the length direction of the first pendulum.

[0028] The support plate is looped around the slide rod and is slidably connected to the slide rod.

[0029] In one possible implementation, the support plate includes a first plate body and two second plate bodies;

[0030] The second plate is connected to the side of the first plate near the first swing arm. The length direction of the second plate is the same as the length direction of the first swing arm, and the length direction of the first plate is perpendicular to the length direction of the second plate.

[0031] In a second aspect, this disclosure provides an automobile that includes windshield wipers as described in any of the first aspects.

[0032] The technical solution provided in this disclosure includes at least the following beneficial effects:

[0033] This disclosure provides a windshield wiper that, when it is necessary to separate the second swivel arm from the windshield, pushes the transmission frame assembly, causing the limiting protrusion assembly to move out of the first groove. Then, pull the first swivel arm until the limiting protrusion assembly extends into the second groove, thereby separating the first swivel arm from the windshield. At this time, the support plate assembly supports the connection between the first and second swivel arms, so the second swivel arm can separate from the windshield under the action of the first swivel arm and the support plate assembly, thus preventing the second swivel arm from freezing to the windshield. In this way, after the second swivel arm is separated from the windshield, it remains parallel to the windshield rather than vertically upward, and is still supported by the support plate assembly, making it less susceptible to damage from falling foreign objects.

[0034] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings:

[0036] Figure 1 This is a schematic diagram of the structure of a windshield wiper according to an embodiment of the present disclosure;

[0037] Figure 2 This is a schematic diagram of the structure of a windshield wiper according to an embodiment of the present disclosure;

[0038] Figure 3 This is a schematic diagram of the structure of a windshield wiper according to an embodiment of the present disclosure;

[0039] Figure 4 This is a partial structural schematic diagram of a windshield wiper according to an embodiment of the present disclosure;

[0040] Figure 5 This is an enlarged view of a partial structure of a windshield wiper according to an embodiment of this disclosure;

[0041] Figure 6 This is a schematic diagram of the structure of a windshield wiper according to an embodiment of the present disclosure;

[0042] Figure 7 This is a schematic diagram of the structure of a windshield wiper according to an embodiment of the present disclosure;

[0043] Figure 8 This is a partial structural schematic diagram of a windshield wiper according to an embodiment of the present disclosure;

[0044] Figure 9 This is a partial structural schematic diagram of a windshield wiper according to an embodiment of the present disclosure.

[0045] Legend:

[0046] 1. Base; 11. Mounting bracket; 12. Drive rod; 13. Support bracket;

[0047] 2. Transmission block; 21. First groove; 22. Second groove; 23. First sawtooth structure;

[0048] 3. First swing rod; 30. Receiving cavity; 301. First end; 3010. Through hole; 302. Second end; 303. Slide groove; 31. Limiting protrusion assembly; 311. Elastic element; 312. Limiting block; 313. Protrusion; 32. Slide rod.

[0049] 4. Transmission frame assembly; 41. Transmission frame; 411. Ring; 412. Connecting rod; 4121. First rod body; 4122. Second rod body; 42. Button; 43. Pressure block;

[0050] 5. Second swing arm;

[0051] 6. Support plate assembly; 61. Drive device; 611. First gear; 612. Second gear; 613. Transmission chain; 62. Support plate; 620. Second sawtooth structure; 621. First plate body; 622. Second plate body.

[0052] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings.

[0054] The terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0055] Windshield wipers are mounted on the front side of a car's windshield to clear rain, snow, and dust from the windshield that obstruct the view.

[0056] In related technologies, a windshield wiper includes a base, a first swivel arm, and a second swivel arm. The base is installed inside the car body, and the first swivel arm is connected to the base. The second swivel arm is rotatably connected to the first swivel arm and is used to mount the wiper blades. In areas with outdoor temperatures below 0°C, such as during heavy snow or rain, after parking the car in an open-air parking lot, most users will pull the second swivel arm upwards to prevent the wiper blades from freezing. This separates the second swivel arm and the wiper from the windshield, at which point the second swivel arm is vertically upwards.

[0057] However, when foreign objects fall (such as tree branches), they may hit the second control arm, causing irreversible damage to the second control arm and wiper blades, resulting in property loss for the user.

[0058] In view of the above-mentioned technical problems, this disclosure provides a windshield wiper that can prevent damage from falling foreign objects. The implementation of the windshield wiper is described below by way of example.

[0059] like Figures 1-3 As shown, the windshield wiper includes a base 1, a transmission block 2, a first swing arm 3, a transmission frame assembly 4, a second swing arm 5, and a support plate assembly 6. The transmission block 2 is rotatably connected to the base 1 and has a first groove 21 and a second groove 22 along its axial direction. The first groove 21 is closer to the windshield than the second groove 22. The first end 301 of the first swing arm 3 has a receiving cavity 30, which surrounds the transmission block 2 and is slidably connected to it along its axial direction. The interior of the first end 301 has a limiting protrusion assembly 31 that extends into either the first groove 21 or the second groove 22. The transmission frame assembly 4 is at least partially located inside the receiving cavity 30 and is used to drive the limiting protrusion assembly 31 to extend and retract radially along the transmission block 2. The second swing arm 5 is rotatably connected to the second end 302 of the first swing arm 3 and is used to connect the windshield wiper. The support plate assembly 6 is slidably connected to the first swing arm 3 and is located on the side of the first swing arm 3 closest to the windshield. The support plate assembly 6 is configured to avoid the second rocker arm 5 when the limiting protrusion assembly 31 is located in the first groove 21, and to support the second rocker arm 5 when the limiting protrusion assembly 31 is located in the second groove 22.

[0060] The base 1 includes a mounting base 11, a drive rod 12, and a support base 13. The mounting base 11 is installed inside the vehicle. The two ends of the drive rod 12 are connected to the mounting base 11 and the support base 13, respectively. The drive rod 12 is rotatably connected to the mounting base 11 and is used to drive the first swing arm 3 to rotate. The first swing arm 3 is located on the side of the support base 13 away from the mounting base 11.

[0061] The axis of rotation between the second pendulum 5 and the second end 302 of the first pendulum 3 is perpendicular to the axis of rotation between the first pendulum 3 and the base 1.

[0062] The technical solution provided in this disclosure involves pushing the transmission frame assembly 4 when it is necessary to separate the second swing arm 5 from the car windshield, causing the limiting protrusion assembly 31 to move out of the first groove 21. Then, the first swing arm 3 is pulled until the limiting protrusion assembly 31 extends into the second groove 22, thereby separating the first swing arm 3 from the car windshield. At this time, the support plate assembly 6 supports the connection between the first swing arm 3 and the second swing arm 5, so the second swing arm 5 can separate from the car windshield under the action of the first swing arm 3 and the support plate assembly 6. In this way, after the second swing arm 5 is separated from the car windshield, it remains parallel to the windshield rather than vertically upward, and it is also supported by the support plate assembly 6, thus making it less susceptible to damage from falling foreign objects.

[0063] In some examples, such as Figures 3-5 As shown, the limiting protrusion assembly 31 includes an elastic element 311, a limiting block 312, and a protrusion 313. The inner wall of the receiving cavity 30 is provided with a sliding groove 303, and the limiting block 312 is slidably connected to the sliding groove 303. Both ends of the elastic element 311 are respectively connected to the bottom of the sliding groove 303 and the limiting block 312, and the protrusion 313 is located on the side wall of the limiting block 312. The transmission frame assembly 4 includes a transmission frame 41, a button 42, and a pressure block 43. Both ends of the transmission frame 41 are respectively connected to the button 42 and the pressure block 43. The first end 301 has a through hole 3010, through which the button 42 extends. When the button 42 is pressed, the pressure block 43 drives the limiting block 312 to move out of the first groove 21 or the second groove 22 via the protrusion 313. When the button 42 is released, the elastic element 311 drives the limiting block 312 to extend into the first groove 21 or the second groove 22.

[0064] When it is necessary to separate the first rocker arm 3 from the windshield, press button 42 to move the transmission frame 41 and the pressure block 43 towards the base 1. During the movement of the pressure block 43, the protrusion 313 is gradually squeezed, causing the protrusion 313 to move away from the transmission block 2. Since the protrusion 313 is connected to the side of the limiting block 312, the protrusion 313 will drive the limiting block 312 out of the first groove 21, at which time the elastic element 311 is compressed in the slide groove 303. Then, pull the first rocker arm 3 outward and release button 42. During the pulling of the first rocker arm 3, the limiting block 312 abuts against the outer wall of the transmission block 2, and the elastic element 311 is always in a compressed state. When the limiting block 312 of the first rocker arm 3 moves to the second groove 22, since there is no compression from the outer wall of the transmission block 2, the elastic element 311 extends out of the slide groove 303, thereby allowing the limiting block 312 to extend into the second groove 22.

[0065] When it is necessary to separate the first lever 3 from the windshield, the operation is similar to the above, so it will not be described again here.

[0066] In some examples, the limiting block 312 has a protrusion 313 on both sides. Correspondingly, the transmission frame assembly 4 has at least two pressure blocks 43 for pressing the protrusions 313. This allows the limiting block 312 to be subjected to more even force, thereby ensuring that the limiting block 312 can be smoothly removed from the first groove 21 or the second groove 22.

[0067] For example, such as Figure 5 As shown, the protrusion 313 is cylindrical, and the axis of the protrusion 313 is perpendicular to the extension and contraction direction of the elastic member 311.

[0068] Of course, in other examples, the protrusion 313 may also be cuboid. This disclosure does not specifically limit the shape and size of the protrusion 313.

[0069] For example, the elastic element 311 is a spring.

[0070] In other examples, the elastic element 311 may also be a flexible rod capable of extension and retraction. This disclosure does not specifically limit the elastic element 311.

[0071] In some examples, such as Figure 3 and Figure 4 As shown, the transmission frame 41 includes a ring 411 and multiple connecting rods 412. The ring 411 surrounds the transmission block 2, and the multiple connecting rods 412 are evenly arranged along the circumference of the transmission block 2. The two ends of the connecting rods 412 are respectively connected to the ring 411 and the button 42. The pressure block 43 is fixed to the side of the ring 411 away from the connecting rods 412.

[0072] The transmission frame 41 has a hollow structure, which makes the overall weight of the transmission frame 41 relatively low, thus ensuring that the transmission frame 41 can be smoothly reset after the user releases the button 42.

[0073] For example, such as Figure 3 and Figure 4 As shown, the connecting rod 412 includes a first rod body 4121 and a second rod body 4122, which are connected and arranged in a bent manner. The end of the first rod body 4121 is connected to the ring 411, and the end of the second rod body 4122 is connected to the button 42.

[0074] In some examples, the end of the receiving cavity 30 away from the base 1 has a first magnet. The end of the transmission frame assembly 4 away from the base 1 has a second magnet, and the first and second magnets attract each other. Thus, when the user stops pressing the transmission frame assembly 4, the transmission frame assembly 4 will move along the inner wall near the first end 301 under the magnetic force of the first magnet, thereby resetting the transmission frame assembly 4. The second magnet may be located on the second rod 4122 of the connecting rod 412.

[0075] In some examples, the base 1 has a third magnet on the side near the first rocker arm 3. The first end 301 of the first rocker arm 3 has a fourth magnet on the side near the base 1, and the third and fourth magnets attract each other. The third magnet is located on the side of the support 13 away from the mounting base 11. When the limiting protrusion assembly 31 is located in the first groove 21, the first end 301 is in contact with the support 13. Under the magnetic force of the third and fourth magnets, there is a strong connection force between the first end 301 and the support 13, which makes the first rocker arm 3 and the base 1 have a high connection strength, thereby improving the stability after the first rocker arm 3 and the base 1 are connected.

[0076] When the first swing arm 3 separates from the windshield, the support plate assembly 6 supports the connection between the second end 302 of the first swing arm 3 and the second swing arm 5, preventing the second swing arm 5 from rotating in the direction closer to the windshield. The implementation of the support plate assembly 6 will be described below by way of example.

[0077] In some examples, such as Figures 6-8 As shown, the support plate assembly 6 includes a drive device 61 and a support plate 62. The drive device 61 drives the support plate 62 to slide along the length of the first rocker arm 3. When the first rocker arm 3 moves away from the windshield, the drive device 61 drives the support plate 62 to slide away from the first end 301 of the first rocker arm 3. When the first rocker arm 3 moves towards the windshield, the drive device 61 drives the support plate 62 to slide towards the first end 301 of the first rocker arm 3.

[0078] The implementation of the drive device 61 will now be described by way of example.

[0079] In some examples, such as Figure 8 and Figure 9 As shown, the drive device 61 includes a first gear 611, a second gear 612, and a transmission chain 613. The first gear 611 and the second gear 612 are connected by the transmission chain 613. The first gear 611 is rotatably connected to the first end 301, and the transmission block 2 has a first sawtooth structure 23, which meshes with the first gear 611. The second gear 612 is rotatably connected to the second end 302, and the support plate 62 has a second sawtooth structure 620, which meshes with the second gear 612.

[0080] When the first rocker arm 3 moves away from the windshield, it also moves away from the base 1, causing the first gear 611 to move. Since the first gear 611 meshes with the first sawtooth structure 23, it rotates. Simultaneously, the first gear 611 drives the second gear 612 to rotate via the transmission chain 613. Then, the second gear 612 pushes the support plate 62 to move via the second sawtooth structure 620, causing the support plate 62 to move to the connection point between the first rocker arm 3 and the second rocker arm 5.

[0081] Correspondingly, when the first rocker arm 3 moves towards the windshield, it also moves towards the base 1, driving the first gear 611 to move. Since the first gear 611 meshes with the first sawtooth structure 23, it rotates. Simultaneously, the first gear 611 drives the second gear 612 to rotate via the transmission chain 613. Then, the second gear 612 pushes the support plate 62 to move via the second sawtooth structure 620, causing the support plate 62 to no longer support the second rocker arm 5.

[0082] Of course, in some other examples, the support plate assembly 6 may not include the drive unit 61, and the support plate 62 may be moved manually by the user.

[0083] In some examples, such as Figure 3 and Figure 8 As shown, the second end 302 of the first swing arm 3 has a slide rod 32, which is parallel to the length direction of the first swing arm 3. The support plate 62 is fitted around the slide rod 32 and is slidably connected to the slide rod 32. The side of the second end 302 of the first swing arm 3 facing the base 1 may have a groove, and the slide rod 32 is fixed in the groove.

[0084] In some examples, such as Figure 8 As shown, the support plate 62 includes a first plate 621 and two second plates 622. The second plates 622 are connected to the first plate 621 near the side of the first rocker arm 3. The length direction of the second plates 622 is the same as the length direction of the first rocker arm 3, while the length direction of the first plate 621 is perpendicular to the length direction of the second plates 622. This allows the support plate 62 to be relatively long, exceeding its travel distance. This ensures that when the first rocker arm 3 separates from the windshield, the support plate 62 can support the connection between the first rocker arm 3 and the second rocker arm 5.

[0085] The process of moving the first pendulum 3 will be described below by way of example.

[0086] When the first rocker arm 3 is pulled outward, button 42 is pressed first, causing pressure block 43 to squeeze protrusion 313, thereby removing limiting block 312 from the first groove 21. Then, the first rocker arm 3 is pulled outward while button 42 is released, causing transmission frame assembly 4 to move along the inner wall near the first end 301 under the magnetic force of the first magnet, thereby resetting transmission frame assembly 4. During the outward pulling of the first rocker arm 3, the first gear 611 drives the second gear 612 to rotate through transmission chain 613. At the same time, the second gear 612 pushes the support plate 62 to move away from the first end 301 of the first rocker arm 3 through the second sawtooth structure 620 on the support plate 62. When the limiting block 312 of the first rocker arm 3 extends into the second groove 22, the first rocker arm 3 is fixed, and the support plate 62 moves to the connection between the first rocker arm 3 and the second rocker arm 5.

[0087] When the first rocker arm 3 is pushed inward, button 42 is pressed first, causing pressure block 43 to squeeze protrusion 313, thereby removing limiting block 312 from the second groove 22. Then, the first rocker arm 3 is pushed inward while button 42 is released, causing transmission frame assembly 4 to move along the inner wall near the first end 301 under the magnetic force of the first magnet, thereby resetting transmission frame assembly 4. During the process of pushing the first rocker arm 3 inward, the first gear 611 drives the second gear 612 to rotate through transmission chain 613. At the same time, the second gear 612 pushes the support plate 62 to move along the direction near the first end 301 of the first rocker arm 3 through the second serrated structure 620 on the support plate 62. When the limiting block 312 of the first rocker arm 3 extends into the second groove 22, the first rocker arm 3 is fixed, and the support plate 62 moves to the position of the first rocker arm 3 and only contacts the first rocker arm 3.

[0088] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A windshield wiper, characterized in that, The wiper includes a base (1), a transmission block (2), a first swing arm (3), a transmission frame assembly (4), a second swing arm (5), and a support plate assembly (6); The transmission block (2) is rotatably connected to the base (1). The transmission block (2) has a first groove (21) and a second groove (22) along the axial direction. The first groove (21) is closer to the windshield than the second groove (22). The first end (301) of the first rocker arm (3) is provided with a receiving cavity (30), the receiving cavity (30) surrounds the transmission block (2) and is slidably connected to the transmission block (2) along the axial direction, and the interior of the first end (301) has a limiting protrusion assembly (31), the limiting protrusion assembly (31) extends into the first groove (21) or the second groove (22); The transmission frame assembly (4) is at least partially located inside the receiving cavity (30), and the transmission frame assembly (4) is used to drive the limiting protrusion assembly (31) to extend and retract radially along the transmission block (2); The second swing arm (5) is rotatably connected to the second end (302) of the first swing arm (3), and the second swing arm (5) is used to connect the windshield wiper; The support plate assembly (6) is slidably connected to the first swing arm (3) and is located on the side of the first swing arm (3) near the windshield. The support plate assembly (6) is configured to avoid the second swing arm (5) when the limiting protrusion assembly (31) is located in the first groove (21) and to support the second swing arm (5) when the limiting protrusion assembly (31) is located in the second groove (22).

2. The windshield wiper according to claim 1, characterized in that, The limiting protrusion assembly (31) includes an elastic element (311), a limiting block (312), and a protrusion (313). The inner wall of the receiving cavity (30) is provided with a sliding groove (303). The limiting block (312) is slidably connected to the sliding groove (303). The two ends of the elastic element (311) are respectively connected to the bottom of the sliding groove (303) and the limiting block (312). The protrusion (313) is located on the side wall of the limiting block (312). The transmission frame assembly (4) includes a transmission frame (41), a button (42) and a pressure block (43). The two ends of the transmission frame (41) are connected to the button (42) and the pressure block (43) respectively. The first end (301) has a through hole (3010), and the button (42) extends out from the through hole (3010). When the button (42) is pressed, the pressure block (43) drives the limiting block (312) to move out of the first groove (21) or the second groove (22) through the protrusion (313); when the button (42) is released, the elastic element (311) drives the limiting block (312) to extend into the first groove (21) or the second groove (22).

3. The windshield wiper according to claim 2, characterized in that, The transmission frame (41) includes a ring (411) and multiple connecting rods (412); The ring (411) surrounds the transmission block (2), and the plurality of connecting rods (412) are evenly arranged along the circumference of the transmission block (2). The two ends of the connecting rods (412) are respectively connected to the ring (411) and the button (42). The pressure block (43) is fixed to the side of the ring (411) away from the connecting rod (412).

4. The windshield wiper according to claim 1, characterized in that, The receiving cavity (30) has a first magnet at the end away from the base (1); The transmission frame assembly (4) has a second magnet at one end away from the base (1), and the first magnet and the second magnet attract each other.

5. The windshield wiper according to claim 1, characterized in that, The base (1) has a third magnet on the side near the first rocker arm (3); The first end (301) of the first swing rod (3) has a fourth magnet on the side near the base (1), and the third magnet and the fourth magnet attract each other.

6. The windshield wiper according to claim 1, characterized in that, The support plate assembly (6) includes a drive device (61) and a support plate (62); The driving device (61) is used to drive the support plate (62) to slide along the length direction of the first rocker arm (3).

7. The windshield wiper according to claim 6, characterized in that, The drive device (61) includes a first gear (611), a second gear (612), and a transmission chain (613), wherein the first gear (611) and the second gear (612) are connected by the transmission chain (613); The first gear (611) is rotatably connected to the first end (301), and the transmission block (2) has a first sawtooth structure (23), and the first gear (611) meshes with the first sawtooth structure (23); The second gear (612) is rotatably connected to the second end (302), and the support plate (62) has a second sawtooth structure (620), which meshes with the second gear (612).

8. The windshield wiper according to claim 7, characterized in that, The second end (302) of the first swing rod (3) has a slide rod (32), which is parallel to the length direction of the first swing rod (3); The support plate (62) is wrapped around the slide rod (32) and is slidably connected to the slide rod (32).

9. The windshield wiper according to claim 6, characterized in that, The support plate (62) includes a first plate (621) and two second plates (622); The second plate (622) is connected to the first plate (621) on the side near the first swing rod (3). The length direction of the second plate (622) is the same as the length direction of the first swing rod (3), and the length direction of the first plate (621) is perpendicular to the length direction of the second plate (622).

10. A car, characterized in that, The vehicle includes a windshield wiper as described in any one of claims 1-9.

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