Length-adjustable automobile windscreen wiper

Abstract

The utility model relates to the technical field of automobile parts, in particular to a length-adjustable automobile windscreen wiper. The automobile windscreen wiper with the adjustable length comprises a rotating shaft, a connecting ring, a rotating rod, a sliding rod, a supporting frame, a scraping plate and a mounting base, the connecting ring is connected to the rotating shaft in a sliding mode, the rotating rod is connected to the left side of the connecting ring in a rotating mode, the sliding rod is connected to the interior of the rotating rod in a sliding mode, and the mounting base is connected to the left side of the interior of the sliding rod in a sliding mode. A supporting frame is mounted at the bottom of the mounting base, and a scraper is fixedly connected to the bottom of the supporting frame. The clamping state of the clamping block and the clamping strip is controlled through the pulling plate, flexible adjustment of the length of the windscreen wiper arm is achieved, and the problems that the length of an existing automobile windscreen wiper arm is fixed, the wiping range cannot be flexibly adjusted, the wiping effect is poor, the sight of a driver is affected, in addition, sizes of windshields of different automobile types are different, and the size of the windscreen wiper arm cannot be adjusted flexibly are solved. And the windscreen wiper with the fixed length is difficult to meet diversified use requirements.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to an adjustable-length automotive windshield wiper. Background Technology

[0002] Windshield wipers are devices installed on the windshields of vehicles such as cars and trains. Their main function is to use an electric motor to drive the wiper blades to reciprocate on the glass, thereby effectively removing rainwater, snow, dust, mud and other debris from the windshield, providing the driver with a clear view and ensuring driving safety. Different types of vehicles may be equipped with different specifications and forms of windshield wipers, the most common being framed wipers and frameless wipers.

[0003] Although existing car windshield wipers are widely used, they still have some drawbacks and limitations. For example, the wiper arm length of existing car windshield wipers is fixed, which cannot flexibly adjust the wiping range, resulting in poor wiping effect and affecting the driver's vision. In addition, the windshield sizes of different car models are different, and fixed-length wipers cannot meet diverse usage needs.

[0004] Therefore, there is a need to design an adjustable-length car windshield wiper. Utility Model Content

[0005] To overcome the shortcomings of existing car windshield wipers with fixed wiper arm lengths, which cannot flexibly adjust the wiping range, resulting in poor wiping performance and affecting the driver's vision, and the fact that windshield sizes vary between different car models, making it difficult for fixed-length wipers to meet diverse usage needs, this utility model provides a car windshield wiper with adjustable length.

[0006] The technical solution is as follows: An adjustable-length car windshield wiper includes a rotating shaft, a connecting ring, a rotating rod, a sliding rod, a support frame, a wiper blade, a mounting base, a locking strip, a locking block, a connecting rod, a pull plate, and a return spring. A connecting ring is slidably connected to the rotating shaft. A rotating rod is rotatably connected to the left side of the connecting ring. A sliding rod is slidably connected inside the rotating rod. A mounting base is slidably connected to the left side of the sliding rod. A support frame is mounted at the bottom of the mounting base. A wiper blade is fixedly connected to the bottom of the support frame. A locking strip is fixedly connected to the top of the sliding rod. A connecting rod is slidably connected to the left side of the rotating rod. A pull plate is fixedly connected to the top of the connecting rod. A locking block is fixedly connected to the bottom of the connecting rod. The locking block engages with the locking strip. A return spring connects the rotating rod and the locking block.

[0007] In a preferred embodiment of the present invention, a pressing block and a return spring are also included. The pressing block is slidably engaged with the top left side of the sliding rod, the lower end of the pressing block is slidably connected to the mounting base, and a return spring is connected between the mounting base and the pressing block.

[0008] In a preferred embodiment of the present invention, a lead screw is further included, and the lead screw is rotatably connected inside the rotating shaft, with a connecting ring threadedly connected to the lead screw.

[0009] In a preferred embodiment of the present invention, a rotating block is also included, with the rotating block fixedly connected to the top of the lead screw.

[0010] In a preferred embodiment of this utility model, both the rotating rod and the sliding rod are made of aluminum alloy.

[0011] In a preferred embodiment of this utility model, the scraper is made of rubber.

[0012] Beneficial effects: 1. By controlling the engagement state of the locking block and the locking strip through the pull plate, the length of the wiper arm can be flexibly adjusted, which solves the problem that the existing car wiper arm length is fixed and cannot flexibly adjust the wiping range, resulting in poor wiping effect and affecting the driver's vision. In addition, the windshield size varies from car model to car model, and the fixed length wiper cannot meet the diverse needs of use.

[0013] 2. This utility model is designed with a support frame, scraper, mounting base, extrusion block and return spring. The extrusion block and return spring work together to allow for easy disassembly of the mounting base by pressing the extrusion block, which enables quick replacement of the support frame and scraper. The operation is simple and efficient. Attached Figure Description

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

[0015] Figure 2 This is a three-dimensional structural diagram of the rotating shaft, connecting ring, and rotating rod of this utility model.

[0016] Figure 3 This is a partial sectional view of the rotating shaft component of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the sliding rod, support frame, scraper, and other components of this utility model.

[0018] Figure 5 This is a three-dimensional structural masked view of the components of this utility model, such as the locking strip, locking block, and connecting rod.

[0019] Figure 6 This is a partial sectional view of the sliding rod and mounting base components of this utility model.

[0020] Figure 7 This is a three-dimensional structural masked view of the support frame, extrusion block, and return spring of this utility model.

[0021] Wherein: 1-rotating shaft, 2-connecting ring, 3-rotating rod, 4-sliding rod, 5-support frame, 6-scraper, 7-mounting seat, 8-pressing block, 9-return spring, 10-positioning strip, 11-positioning block, 12-connecting rod, 13-pull plate, 14-return spring, 15-lead screw, 16-rotating block. Detailed Implementation

[0022] Example: An adjustable-length car windshield wiper, such as Figures 1-7 As shown, the wiper arm includes a rotating shaft 1, a connecting ring 2, a rotating rod 3, a sliding rod 4, a support frame 5, a wiper blade 6, a mounting base 7, a locking strip 10, a locking block 11, a connecting rod 12, a pull plate 13, and a return spring 14. The connecting ring 2 is slidably connected to the rotating shaft 1. The rotating rod 3 is rotatably connected to the left side of the connecting ring 2. The sliding rod 4 is slidably connected inside the rotating rod 3. Both the rotating rod 3 and the sliding rod 4 are made of aluminum alloy, possessing high strength and hardness, ensuring that the wiper arm is not easily deformed during use, can withstand various stresses during wiping, and has good corrosion resistance. After anodizing treatment, its corrosion resistance can be further improved, adapting to the complex external environment of the car. The sliding rod 4 is slidably connected to the left side of its interior. Mounting bracket 7 has a support frame 5 installed at its bottom. A scraper 6 is glued to the bottom of the support frame 5. The scraper 6 is made of rubber and can better fit the windshield surface during wiping, thereby removing rainwater, dust and other debris from the windshield. A locking strip 10 is welded to the top of the sliding rod 4. A connecting rod 12 is slidably connected to the left side of the rotating rod 3. A pull plate 13 is welded to the top of the connecting rod 12. A locking block 11 is welded to the bottom of the connecting rod 12. The locking block 11 engages with the locking strip 10. A return spring 14 is connected between the rotating rod 3 and the locking block 11, thereby realizing the adjustment of the wiper length, improving the wiping effect of the wiper on the windshield in different weather conditions and on different vehicle models, and ensuring the driver's driving safety.

[0023] like Figure 6 and Figure 7 As shown, it also includes a squeezing block 8 and a return spring 9. The squeezing block 8 is slidably engaged with the top left side of the sliding rod 4. The lower end of the squeezing block 8 is slidably connected to the mounting base 7. The return spring 9 is connected between the mounting base 7 and the squeezing block 8, so that the old scraper 6 can be removed and replaced with a new scraper 6, which is convenient for subsequent cleaning of the windshield surface.

[0024] like Figure 2 and Figure 3 As shown, it also includes a lead screw 15 and a rotating block 16. The lead screw 15 is rotatably connected inside the rotating shaft 1, and the connecting ring 2 is threadedly connected to the lead screw 15. The rotating block 16 is welded to the top of the lead screw 15, thereby driving the entire wiper to adjust its axial position to adapt to different installation positions and usage requirements.

[0025] When the wiper length needs to be adjusted, pull the pull plate 13 upwards. The pull plate 13 moves upwards, causing the connecting rod 12 to move upwards. This causes the locking block 11 to move upwards and disengage from the locking strip 10. The return spring 14 is compressed, allowing the sliding rod 4 to slide freely within the rotating rod 3 as needed. After adjusting to the appropriate length, release the pull plate 13. The return spring 14 returns to its original position under its own elasticity, and the locking block 11 moves downwards, engaging with the locking strip 10 again. This completes the initial adjustment of the wiper length, improving the wiping effect of the wipers on the windshield in different weather conditions and for different vehicle models, ensuring driver safety. By rotating the rotating block 16, the rotation of the rotating block 16 drives the lead screw 15 to rotate, causing the connecting ring 2 to slide up and down along the axial direction of the rotating shaft 1. This adjusts the axial position of the entire wiper to adapt to different installation positions and usage needs. When this device is working, the drive source drives the rotating shaft 1 to rotate. The rotating shaft 1 drives the rotating rod 3 to swing through the connecting ring 2. Since the sliding rod 4, mounting base 7, support frame 5 and scraper 6 are connected in sequence, the swing of the rotating rod 3 can drive the scraper 6 to perform reciprocating scraping motion on the windshield surface, thereby removing rainwater, dust and other debris from the windshield. If the scraper 6 needs to be replaced, the rotating rod 3 is rotated on the connecting ring 2 until it is perpendicular to the connecting ring 2. The pressing block 8 is then pressed down. Under the pressure, the pressing block 8 slides down into the mounting base 7 inside the sliding rod 4. The return spring 9 is compressed, and the mounting base 7 along with the support frame 5 can be pulled out from the sliding rod 4. After removing the old scraper 6 and replacing it with a new scraper 6, it is convenient to clean the windshield surface subsequently. The mounting base 7 is then slid back into the sliding rod 4, and the pressing block 8 and return spring 9 return to their original positions, thus completing the use of this device.

Claims

1. An adjustable length automotive wiper, characterized by: The utility model provides a kind of rotary shaft (1), connecting ring (2), rotating rod (3), sliding rod (4), support frame (5), scraper (6), mounting seat (7), clamping strip (10), clamping block (11), connecting rod (12), pull plate (13) and return spring (14) are included, rotary shaft (1) is slidably connected with connecting ring (2), connecting ring (2) left side is rotatably connected with rotating rod (3), rotating rod (3) is slidably connected with sliding rod (4) inside, sliding rod (4) left side is slidably connected with mounting seat (7) inside, mounting seat (7) bottom is equipped with support frame (5), support frame (5) bottom is fixedly connected with scraper (6), sliding rod (4) top is fixedly connected with clamping strip (10) inside, rotating rod (3) left side is slidably connected with connecting rod (12) inside, connecting rod (12) top is fixedly connected with pull plate (13), connecting rod (12) bottom is fixedly connected with clamping block (11), clamping block (11) and clamping strip (10) are connected with return spring (14) between clamping block (11) and rotating rod (3).

2. A length adjustable automotive wiper according to claim 1, characterized in that: Still include extrusion block (8) and return spring (9), sliding rod (4) top left side is slidably connected with extrusion block (8), extrusion block (8) lower end and mounting seat (7) are slidably connected, mounting seat (7) and extrusion block (8) are connected with return spring (9).

3. A length adjustable automotive wiper according to claim 2, wherein: Still include screw rod (15), rotary shaft (1) is rotatably connected with screw rod (15) inside, connecting ring (2) and screw rod (15) are threadedly connected.

4. A length adjustable motor vehicle windscreen wiper according to claim 3, characterized in that: Still include spin block (16), screw rod (15) top is fixedly connected with spin block (16).

5. A length adjustable motor vehicle windscreen wiper according to claim 4, characterized in that: Rotating rod (3) and sliding rod (4) are all aluminium alloy material.

6. An adjustable length automotive wiper blade as defined in claim 5, wherein: Scraper (6) is rubber material.

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