Connecting rod assembly of automobile windscreen wiper

Abstract

The utility model relates to the technical field of automobile accessories, in particular to an automobile windscreen wiper connecting rod assembly which comprises a driving rod and a main rod hinged to the driving rod, a rack meshed with a transmission gear in a transmission mode is connected into the main rod in a sliding mode, and a limiting assembly is arranged at the upper end of the main rod and comprises a cover plate. And the cover plate is in threaded connection with the main rod through a plurality of bolts. According to the limiting assembly, a bolt is screwed down, then a cover plate is taken down, and then the supporting base and the rack can be taken out, so that the rack is conveniently cleaned and overhauled, and the situation that dust or impurities enter the rack, and consequently a transmission gear and the rack cannot be in meshed transmission is avoided; the connecting rod assembly adopts single-rack transmission, so that the size of the main rod is reduced, and the main rod is lighter.

Description

Technical Field

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

[0002] Windshield wipers, also known as wipers or windshield wipers, are devices used to remove rainwater and dust adhering to the windshield. This improves the driver's visibility and increases driving safety.

[0003] For example, the application publication number "CN108001413A" is named "Automotive Wiper Linkage Assembly." Through the linkage of transmission gears and racks, it is not only stable and has a low failure rate, but also has a simple structure. The swing assembly has a simple structure and is relatively easy to process and assemble.

[0004] The above and existing technologies have the following defects: the rack inside the main rod of the connecting rod assembly is not easy to remove for maintenance; if dust or impurities enter the rack, the transmission gear cannot mesh with the rack for transmission. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an automotive windshield wiper linkage assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The design includes a windshield wiper linkage assembly, comprising a drive rod and a main rod hinged to the drive rod. A drive motor is mounted on one side surface of the main rod, and a mounting block is integrally formed on one side surface of the main rod. A transmission gear is rotatably connected inside the mounting block, and the transmission gear is fixedly connected to the output shaft of the drive motor. A rack is slidably connected inside the main rod, meshing with the transmission gear. A support seat is provided at the upper end of the rack, and a support foot is provided on the upper surface of the support seat. An adjusting rod is hinged to the upper end of the support foot, and a main body with a wiper blade is provided at the upper end of the adjusting rod. A limiting assembly is provided at the upper end of the main rod, and the limiting assembly includes a cover plate, which is threadedly connected to the main rod by multiple bolts.

[0008] Preferably, the cover plate has a plurality of first concealed grooves corresponding one-to-one with the bolts, the upper part of the bolts is disposed in the first concealed grooves, and a waterproof cover is threadedly connected to the inner wall of the first concealed grooves.

[0009] Preferably, the waterproof cover has a handle on its upper surface.

[0010] Preferably, a second concealed groove is provided on the lower surface of the cover plate, and a sealing gasket is provided inside the second concealed groove.

[0011] Preferably, the main rod has protrusions on both the front and rear inner walls, and the rack has first grooves on both the front and rear surfaces, with the protrusions extending into the first grooves.

[0012] Preferably, the front and rear surfaces of the support base are provided with second sliding grooves, and the protrusion extends into the second sliding grooves.

[0013] The advantages of the car wiper linkage assembly proposed in this utility model are as follows: the setting of the limiting component allows the support seat and rack to be removed by unscrewing the bolts and then taking off the cover plate, which facilitates the cleaning and maintenance of the rack and prevents dust or impurities from entering the rack, causing the transmission gear and rack to fail to mesh and transmit power; this linkage assembly is a single rack and pinion drive, which reduces the volume of the main rod and makes the main rod lighter. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is an enlarged view of position A in this utility model;

[0017] Figure 4 This is a schematic diagram of the main rod structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the rack structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the support structure of this utility model.

[0020] In the diagram: Drive rod 1, main rod 2, drive motor 3, mounting block 4, transmission gear 5, rack 6, support base 7, support foot 8, adjusting rod 9, wiper blade 10, main body 11, cover plate 12, bolt 13, first concealed groove 14, waterproof cover 15, handle 16, second concealed groove 17, sealing gasket 18, protrusion 19, first sliding groove 20, second sliding groove 21. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-6The car windshield wiper linkage assembly includes a drive rod 1 and a main rod 2 hinged to the drive rod 1. A drive motor 3 is provided on one side surface of the main rod 2, and an mounting block 4 is integrally formed on one side surface of the main rod 2. A transmission gear 5 is rotatably connected inside the mounting block 4. The transmission gear 5 is fixedly connected to the output shaft of the drive motor 3. A rack 6 that meshes with the transmission gear 5 is slidably connected inside the main rod 2. A support seat 7 is provided at the upper end of the rack 6. A support foot 8 is provided on the upper surface of the support seat 7. An adjustment rod 9 is hinged to the upper end of the support foot 8. A main body 11 with a wiper blade 10 is provided at the upper end of the adjustment rod 9. The wiper blade 10 of the main body 11 can remove dirt. A limiting component is provided at the upper end of the main rod 2. The limiting component includes a cover plate 12. The cover plate 12 is threadedly connected to the main rod 2 by multiple bolts 13.

[0023] The cover plate 12 has multiple first concealed grooves 14 that correspond one-to-one with the bolts 13. The upper part of the bolts 13 is placed in the first concealed grooves 14, and a waterproof cover 15 is threaded onto the inner wall of the first concealed groove 14. The waterproof cover 15 prevents rainwater from corroding the bolts 13.

[0024] The waterproof cover 15 has a handle 16 on its upper surface. The handle 16 makes it easy to screw the waterproof cover 15.

[0025] A second concealed groove 17 is provided on the lower surface of the cover plate 12, and a sealing gasket 18 is provided inside the second concealed groove 17. The sealing gasket 18 plays a sealing role for the main rod 2.

[0026] Both the front and rear inner walls of the main rod 2 are provided with protrusions 19, and both the front and rear surfaces of the rack 6 are provided with first sliding grooves 20, with the protrusions 19 extending into the first sliding grooves 20. By sliding the protrusions 19 in the first sliding grooves 20, the rack 6 moves more smoothly.

[0027] The support base 7 has a second sliding groove 21 on both its front and rear surfaces, and the protrusion 19 extends into the second sliding groove 21. By sliding the protrusion 19 in the second sliding groove 21, the support base 7 moves more smoothly.

[0028] Working principle: When dirt obstructs the driver's view in the blind spot of the glass, the drive motor 3 is started to rotate the transmission gear 5. The transmission gear 5 meshes with the rack 6, pushing the support seat 7 and causing the adjusting rod 9 to extend outwards towards the main rod 2. The wiper blade 10 on the main body 11 can then clean the dirt. If the area of ​​dirt is large and the adjusting rod 9 extends completely beyond the main rod 2, the support foot 8 can be hinged to the adjusting rod 9, causing the main body 11 to swing, thereby quickly cleaning the dirt. The limiting component is designed so that by unscrewing the bolt 13 and removing the cover plate 12, the support seat 7 and rack 6 can be removed, facilitating the cleaning and maintenance of the rack 6 and preventing dust or impurities from entering the rack 6, which could prevent the transmission gear 5 and rack 6 from meshing. This linkage assembly uses a single rack 6 drive, reducing the size of the main rod 2 and making it lighter.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A windshield wiper linkage assembly, comprising a drive rod (1) and a main rod (2) hinged to the drive rod (1), characterized in that, The main rod (2) has a drive motor (3) on one side surface and an integrally formed mounting block (4) on one side surface. The mounting block (4) has a transmission gear (5) rotatably connected inside. The transmission gear (5) is fixedly connected to the output shaft of the drive motor (3). The main rod (2) has a rack (6) slidably connected inside, which meshes with the transmission gear (5). The rack (6) has a support seat (7) at the upper end. The support seat (7) has a support foot (8) on the upper surface. The support foot (8) has an adjustment rod (9) hinged at the upper end. The adjustment rod (9) has a body (11) with a wiper blade (10) at the upper end. The main rod (2) has a limiting component at the upper end. The limiting component includes a cover plate (12). The cover plate (12) is threadedly connected to the main rod (2) by multiple bolts (13).

2. The automotive wiper linkage assembly according to claim 1, characterized in that, The cover plate (12) has multiple first concealed grooves (14) that correspond one-to-one with the bolts (13). The upper part of the bolts (13) is placed in the first concealed grooves (14), and a waterproof cover (15) is threadedly connected to the inner wall of the first concealed grooves (14).

3. The automotive wiper linkage assembly according to claim 2, characterized in that, The waterproof cover (15) has a handle (16) on its upper surface.

4. The automotive wiper linkage assembly according to claim 1, characterized in that, The cover plate (12) has a second concealed groove (17) on its lower surface, and a sealing gasket (18) is provided inside the second concealed groove (17).

5. The automotive wiper linkage assembly according to claim 1, characterized in that, The main rod (2) has protrusions (19) on both the front and rear inner walls, and the rack (6) has first grooves (20) on both the front and rear surfaces, with the protrusions (19) extending into the first grooves (20).

6. The automotive wiper linkage assembly according to claim 5, characterized in that, The support base (7) has a second groove (21) on both the front and rear surfaces, and the protrusion (19) extends into the second groove (21).

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