WO2022017145A1

WO2022017145A1 - Automatic extendable windshield wiper

Info

Publication number: WO2022017145A1
Application number: PCT/CN2021/103565
Authority: WO
Inventors: 黄骏耀
Original assignee: 黄骏耀
Priority date: 2020-07-21
Filing date: 2021-06-30
Publication date: 2022-01-27
Also published as: CN213473073U

Abstract

An automatic extendable windshield wiper, comprising a main frame (1), an extension frame (2), an extension portion (3), a main scraper bar (4), an extension scraper bar (5), a roller (6), and a connection block (7). An extension chamber (101) is provided inside the main frame (1). A roller recess (201) is provided at an outer side of an upper portion of the extension frame (2). The extension portion (3) is located between a lower inner wall of the extension chamber (101) and a lower end of the extension frame (2). The main scraper bar (4) is fixedly disposed at the bottom of the main frame (1), and the extension scraper bar (5) is fixedly disposed at the bottom of the extension frame (2). The roller (6) is disposed in the roller recess (201). The connection block (7) is fixedly disposed at an upper end of the main scraper bar (4). During scraping and wiping, the overall length of the windshield wiper can be changed at any time, so as to increase scraped and wiped areas on a windshield and reduce blind spots. Each component has a simple structure, can be conveniently installed and removed, is easy to use, and is applicable to vehicles of different sizes. The length of the windshield wiper is changed by means of a mechanical structure, thereby saving energy and facilitating a long service life.

Description

An automatic retractable wiper

technical field

The present application belongs to the technical field of windshield wipers, and more particularly, relates to an automatically retractable wiper.

Background technique

Wiper, also known as wiper, water dial, wiper or windshield wiper, is a device used to wipe off raindrops and dust attached to the windshield of the vehicle to improve the driver's visibility and increase driving safety. Cars almost everywhere have wipers because of legal requirements. Vehicles such as hatchbacks and SUVs also have wipers on the rear windows.

When the existing wiper wipes the windshield, the sweeping trajectory is fan-shaped, so that the corners of the windshield cannot be wiped, which affects the driver's sight while driving, and increases the driving danger.

Existing wipers have different specifications, and the lengths of wipers are also different for different sizes of models. Manufacturers cannot achieve unified production, which puts pressure on manufacturers in production, transportation, storage and management.

Although some of the existing wiper products have the function of length expansion, they all use electric expansion and contraction, which not only costs high production, repair and maintenance, but also contacts with external rain, ice and snow during long-term driving, which affects the quality and life of the motor. created a lot of pressure.

Application content

1. Technical problems to be solved

In view of the problems existing in the prior art, the purpose of the present application is to provide an automatic retractable wiper, which proposes a new technical idea, through the expansion and contraction of the retractable frame, the length of the entire wiper can be changed at any time during sweeping, It increases the swept area of the windshield and reduces the occurrence of swept dead corners. The operating principle is clear, the structure of each component is simple, the disassembly and assembly are convenient, and the operator is convenient to use. It can be applied to different sizes of models and reduce the types of manufacturers. , It has a lot of lean effects on the production and management costs of the enterprise. The length of the wiper can be changed through the mechanical structure, which saves energy and has a longer life.

2. Technical solutions

In order to solve the above problems, the present application adopts the following technical solutions.

An automatic retractable wiper comprises a main frame, a retractable frame, a retractable part, a main wiper, a retractable wiper, a roller and a connecting block.

The upper end of the main frame is provided with a telescopic cavity.

A limit block is fixed at the opening at the upper end of the telescopic cavity.

The lower end of the telescopic frame is fixed with a piston head, the piston head is located in the telescopic cavity, and the piston head is slidably connected with the telescopic cavity.

The dimensions of the piston head are consistent with the telescopic cavity, which can effectively prevent the piston head from shaking when sliding in the telescopic cavity, which affects the efficiency of the telescopic scraper.

The outer side of the upper part of the telescopic frame is provided with a roller groove.

The size of the roller groove is larger than the outer size of the roller, which can effectively prevent the interference between the roller groove and the roller.

The telescopic part is located between the lower inner wall of the telescopic cavity and the lower end of the telescopic frame, and the telescopic part is used for the expansion and contraction of the telescopic frame.

The main scraper is fixed on the front side of the main frame, and the main scraper covers the front side of the main frame to make the sweeping area larger.

The telescopic scraper is fixed on the front side of the telescopic frame, and the telescopic scraper covers the front side of the telescopic frame to make the scraping area larger.

The thickness of the telescopic scraper is the same as that of the main scraper, so that the telescopic scraper and the main scraper can scrape at the same time, improving the scraping area and the scraping efficiency.

The roller is located in the roller groove, the roller is rotatably connected with the telescopic frame, and the roller is in contact with the boundary of the windshield.

The bottom side of the roller is lower than the bottom side of the telescopic scraper, so that the telescopic scraper and the main scraper can be cleaned normally.

The upper end of the roller is higher than the upper end of the telescopic frame, so that the roller can smoothly contact the boundary of the windshield.

The connecting block is fixed on the upper end of the main wiper strip, the upper end of the connecting block is provided with a connecting hole, and the connecting hole is detachably connected with the wiper rocker arm.

Further, the telescopic part is a spring, one end of the spring is fixedly connected to the lower inner wall of the telescopic cavity, the other end of the spring is fixedly connected to the lower end of the telescopic frame, the spring is always in a compressed state, and when the roller rolls along the boundary of the windshield, the tension state of the spring changes accordingly. .

Further, the telescopic part includes an upper magnet and a lower magnet, the upper magnet is fixedly connected to the lower inner wall of the telescopic cavity, the lower magnet is fixedly connected to the lower end of the telescopic frame, the opposite ends of the upper magnet and the lower magnet are magnetic poles with the same magnetism, and the roller is along the boundary of the windshield. When rolling, the distance between the upper and lower magnets changes accordingly.

Further, grease is coated between the telescopic frame and the telescopic cavity, so that the telescopic frame slides more smoothly.

Further, the main frame and the telescopic frame are made of rigid materials, which reduces the bending of the main frame after long-term use, resulting in a reduction in the sweeping efficiency of the main scraper and the telescopic scraper.

Further, the main wiper strip and the telescopic wiper strip are made of elastic materials, so that the main wiper strip and the telescopic wiper strip are more closely attached to the windshield, and the sweeping efficiency is improved.

3. Beneficial effects

Compared with the prior art, the advantages of the present application are:

(1) This scheme proposes a new technical idea.

(2) In this solution, the length of the entire wiper can be changed at any time during the sweeping through the expansion and contraction of the telescopic frame, so as to increase the swept area of the windshield and reduce the occurrence of the dead angle of sweeping.

(3) The application principle of this scheme is clear, the structure of each component is simple, the disassembly and assembly are convenient, and the operator is convenient to use.

(4) This solution can be applied to models of different sizes, reducing the types of manufacturers' production, and has a lot of lean effects on the production and management costs of enterprises.

(5) This scheme changes the length of the wiper through the mechanical structure, saves energy and has a longer life.

Description of drawings

1 is a schematic three-dimensional structure diagram of a specific embodiment 1 of the application;

Fig. 2 is the left side sectional structural schematic diagram of the specific embodiment one of the application;

3 is a schematic three-dimensional structure diagram of the main skeleton of the specific embodiment 1 of the application;

FIG. 4 is a schematic three-dimensional structure diagram of the telescopic frame according to the specific embodiment 1 of the application;

FIG. 5 is a schematic three-dimensional structural diagram of a connection block according to a specific embodiment of the present application;

6 is a schematic structural diagram of the initial stage of the specific embodiment 1 and the specific embodiment 2 of the application;

FIG. 7 is a schematic structural diagram of a working stage of the specific embodiment 1 and the specific embodiment 2 of the present application.

Description of the labels in the figure:

Main frame 1, telescopic cavity 101, limit block 102, telescopic frame 2, roller groove 201, piston head 202, telescopic part 3, main scraper 4, telescopic scraper 5, roller 6, connecting block 7, connecting hole 701, Windshield border 8, wiper rocker arm 9, motor 10.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The embodiments in the present application and all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "provided with", "sleeve/connection", "connection", etc., should be understood in a broad sense, such as " Connection", which can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components. of connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

Specific embodiment 1: Please refer to an automatic retractable wiper blade shown in FIGS. 1-5 , which includes a main frame 1 , a telescopic frame 2 , a telescopic part 3 , a main scraper 4 , a telescopic scraper 5 , a roller 6 and a connecting block 7 .

The upper end of the main frame 1 is provided with a telescopic cavity 101 .

A limit block 102 is fixed at the upper end opening of the telescopic cavity 101 , and the limit block 102 effectively prevents the telescopic frame 2 from jumping out of the telescopic cavity 101 and being separated.

A piston head 202 is fixed at the lower end of the telescopic frame 2 , the piston head 202 is located in the telescopic cavity 101 , and the piston head 202 is slidably connected with the telescopic cavity 101 .

The outer dimensions of the piston head 202 are consistent with the telescopic cavity 101 , which effectively prevents the piston head 202 from shaking when sliding in the telescopic cavity 101 , which affects the efficiency of the telescopic scraper 5 .

Grease is applied between the piston head 202 and the telescopic cavity 101 to make the telescopic frame 2 slide more smoothly.

The outer side of the upper part of the telescopic frame 2 is provided with a roller groove 201 .

The size of the roller groove 201 is larger than the outer dimension of the roller 6 , which effectively prevents the roller groove 201 from interfering with the roller 6 .

The telescopic part 3 is a spring, one end of the spring is fixedly connected to the lower inner wall of the telescopic cavity 101, the other end of the spring is fixedly connected to the lower end of the telescopic frame 2, the spring is always in a compressed state, so that the telescopic frame 2 has a tendency to be away from the main frame 1, and the roller 6 moves along the block As the windshield boundary rolls, the spring tension changes accordingly.

The main scraper 4 is fixed on the front side of the main frame 1, and the main scraper 4 covers the front side of the main frame 1, so that the sweeping area is larger.

The telescopic scraper 5 is fixed on the front side of the telescopic frame 2, and the telescopic scraper 5 covers the entire front side of the telescopic frame 2, so that the scraping area is larger.

The telescopic scraper 5 and the main scraper 4 have the same thickness, so that the telescopic scraper 5 and the main scraper 4 can be scraped at the same time, thereby improving the scraping area and the scraping efficiency.

The roller 6 is located in the roller groove 201, the roller 6 is rotatably connected with the telescopic frame 2, and the roller 6 is in contact with the boundary block of the windshield.

The bottom side of the roller 6 is lower than the bottom side of the telescopic scraper 5, so that the telescopic scraper 5 and the main scraper 4 can be cleaned normally.

The upper end of the roller 6 is higher than the upper end of the telescopic frame 2, so that the roller 6 can smoothly contact the boundary 8 of the windshield.

The connecting block 7 is fixed on the upper end of the main wiper strip 4 , and the upper end of the connecting block 7 is provided with a connecting hole 701 , and the connecting hole 701 is detachably connected with the wiper rocker arm 9 .

The main frame 1 and the telescopic frame 2 are rigid materials, which can reduce the bending of the main frame 1 after long-term use, resulting in a reduction in the sweeping efficiency of the main scraper 4 and the telescopic scraper 5 .

The main wiper strip 4 and the telescopic wiper strip 5 are made of elastic materials, so that the main wiper strip 4 and the telescopic wiper strip 5 are closer to the windshield and improve the sweeping efficiency.

Specific embodiment 2: the telescopic part 3 includes an upper magnet and a lower magnet, the upper magnet is fixedly connected to the lower inner wall of the telescopic cavity 101, the lower magnet is fixedly connected to the lower end of the telescopic frame 2, the opposite ends of the upper magnet and the lower magnet are the same magnetic poles, the upper A repulsive force is generated between the magnet and the lower magnet, so that the telescopic frame 2 tends to move away from the main frame 1. When the roller 6 rolls along the boundary 8 of the windshield, the distance between the upper magnet and the lower magnet changes accordingly.

Working principle: The roller 6 is in contact with the boundary of the windshield of the automobile, and the telescopic part 3 is compressed, so that the telescopic frame 2 always has a tendency to move away from the main frame 1 , and the telescopic frame 2 always slides in the telescopic cavity 101 .

In the initial state, as shown in Fig. 6, the compression state of the telescopic part 3 is the tightest, and the distance between the telescopic frame 2 and the lower inner wall of the telescopic cavity 101 is the shortest. Rotating, the roller 6 rolls along the windshield boundary 8, the potential energy of the telescopic part 3 is released, and the telescopic frame 2 is far away from the main frame 1 to achieve the effect of elongation, see Figure 7, and reduce the dead angle of sweeping.

The wiper swing arm 9 swings to the limit and then resets, the telescopic frame 2 rotates counterclockwise around the center of the connection hole 701, the roller 6 rolls along the windshield boundary 8, the potential energy of the telescopic part 3 accumulates, and the telescopic frame 2 is close to the main frame 1 to achieve the effect of shortening , so that the telescopic frame 2 can be reset smoothly.

On models of different sizes, the size of the windshield is inconsistent, and the wiper of the present application can be applied to windshields of various sizes.

This application proposes a new technical idea. Through the expansion and contraction of the telescopic frame 2, the length of the entire wiper can be changed at any time during sweeping, so as to increase the swept area of the windshield and reduce the generation of dead corners. Clear, simple structure of each component, easy to disassemble and assemble, convenient for operators to use, applicable to different sizes of models, reducing the types of manufacturers, and having a lot of lean effects on the production and management costs of enterprises, the length of the wiper can be changed through the mechanical structure. , save energy, longer life.

The above descriptions are only preferred specific embodiments of the present application; however, the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed in the present application, according to the technical solution of the present application and its improvement ideas, make equivalent replacements or changes, should be covered within the protection scope of the present application.

Claims

An automatic retractable wiper is characterized in that it comprises a main frame (1), a telescopic frame (2), a telescopic part (3), a main wiper (4), a retractable wiper (5), a roller (6) and connection block(7);

The upper end of the main frame (1) is provided with a telescopic cavity (101);

A limit block (102) is fixed at the opening at the upper end of the telescopic cavity (101);

A piston head (202) is fixed at the lower end of the telescopic frame (2), and the external dimensions of the piston head (202) are consistent with the telescopic cavity (101);

The piston head (202) is located in the telescopic cavity (101), and the piston head (202) is slidably connected with the telescopic cavity (101);

A roller groove (201) is provided on the outer side of the upper part of the telescopic frame (2);

The size of the roller groove (201) is larger than the outer size of the roller (6);

The telescopic portion (3) is located between the lower inner wall of the telescopic cavity (101) and the lower end of the telescopic frame (2), and the telescopic portion (3) is used for the expansion and contraction of the telescopic frame (2);

The main scraper (4) is fixed on the front side of the main frame (1), and the main scraper (4) covers the front side of the main frame (1);

The telescopic scraper (5) is fixed on the front side of the telescopic frame (2), and the telescopic scraper (5) covers the front side of the telescopic frame (2);

The thickness of the telescopic scraper (5) is the same as that of the main scraper (4);

The roller (6) is located in the roller groove (201), and the roller (6) is rotatably connected with the telescopic frame (2);

The bottom side of the roller (6) is lower than the bottom side of the telescopic scraper (5);

The upper end of the roller (6) is higher than the upper end of the telescopic frame (2);

The connecting block (7) is fixed on the upper end of the main scraper (4), and the upper end of the connecting block (7) is provided with a connecting hole (701).
An automatic retractable wiper blade according to claim 1, characterized in that: the retractable part (3) is a spring, one end of the spring is fixedly connected to the lower inner wall of the retractable cavity (101), and the other end of the spring is connected to the lower end of the retractable frame (2) With a fixed connection, the spring is always in compression.
An automatic retractable wiper blade according to claim 1, characterized in that: the retractable part (3) comprises an upper magnet and a lower magnet, the upper magnet is fixedly connected to the lower inner wall of the retractable cavity (101), and the lower magnet is connected to the retractable frame (101). 2) The lower end is fixedly connected, and the opposite ends of the upper magnet and the lower magnet have the same magnetic poles.
An automatic retractable wiper blade according to claim 1, characterized in that: grease is applied between the retractable frame (2) and the retractable cavity (101).
An automatic retractable wiper blade according to claim 1, characterized in that: the main frame (1) and the telescopic frame (2) are rigid materials.
An automatic retractable wiper blade according to claim 1, characterized in that: the main wiper strip (4) and the retractable wiper strip (5) are made of elastic materials.