CN213473073U

CN213473073U - Automatic telescopic windscreen wiper

Info

Publication number: CN213473073U
Application number: CN202021449829.7U
Authority: CN
Inventors: 黄骏耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-06-18
Anticipated expiration: 2030-07-21
Also published as: WO2022017145A1

Abstract

The application discloses wiper that can stretch out and draw back automatically belongs to windscreen wiper technical field. The utility model provides a wiper that can stretch out and draw back automatically, including the main frame, the expansion bracket, the pars contractilis, the main strip of scraping, flexible strip of scraping, gyro wheel and connecting block, the inside flexible chamber of having seted up of main frame, the gyro wheel groove has been seted up in the expansion bracket upper portion outside, flexible position is between inner wall and the expansion bracket lower extreme under the flexible chamber, the main strip of scraping sets firmly in the main frame bottom side, flexible strip of scraping sets firmly in the expansion bracket bottom side, the gyro wheel is located the gyro wheel inslot, the connecting block sets firmly in the main strip upper end of scraping, it provides a new technological thinking, change the length of whole wiper at any time when scraping and sweeping, make windshield be scraped the increase of sweeping area, reduce the production of scraping the dead angle, the application principle is clear, each part structure is simple, easy dismounting, the operator uses conveniently, applicable in the motorcycle type of equidimension not.

Description

Automatic telescopic windscreen wiper

Technical Field

The application belongs to the technical field of wind window wipers, and more particularly relates to a wiper capable of automatically stretching and retracting.

Background

A wiper, also called a wiper, a wiper blade, or a windshield wiper, is a device for wiping off raindrops and dust attached to a windshield of a vehicle, so as to improve visibility of a driver and increase driving safety. Because of legal requirements, almost all motor vehicles come with wipers. The rear windows of vehicles such as hatchbacks and recreational vehicles are also equipped with wipers.

When the existing windscreen wiper scrapes the windshield, the scraping track is fan-shaped, so that the corners of the windshield can not be scraped, the sight line of a driver during driving is influenced, and the driving danger is increased.

The existing windscreen wipers have different specifications, the lengths of the windscreen wipers are different aiming at vehicle types with different sizes, manufacturers cannot achieve unified production, and pressure is generated on the production, transportation, storage and management of the manufacturers.

Although some products of the existing windscreen wipers have the length stretching function, the windscreen wipers all adopt electric stretching, so that the production, maintenance and repair costs are high, and the windscreen wipers are in contact with external rainwater, ice, snow and the like in the long-term driving process, so that not only is the quality of a motor stressed and the service life of the motor stressed.

Content of application

1. Technical problem to be solved

To the problem that exists among the prior art, the aim at of this application provides a wiper that can stretch out and draw back automatically, it has proposed a new technical thought, through the flexible of expansion bracket, change the length of whole wiper at any time when scraping and sweeping, make the area increase of being scraped of windshield, reduce the production of scraping and sweeping the dead angle, the application principle is clear, each part simple structure, easy dismounting, the operator uses conveniently, applicable in the motorcycle type of equidimension not, reduce the kind of producer production, there is not little lean effect to enterprise's production and administrative cost, make wiper length change through mechanical structure, energy saving, the life-span is longer.

2. Technical scheme

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

A windscreen wiper capable of automatically stretching comprises a main framework, a telescopic frame, a telescopic part, a main scraping strip, a telescopic scraping strip, an idler wheel and a connecting block.

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

The opening part at the upper end of the telescopic cavity is fixedly provided with a limiting block.

The piston head is fixedly arranged at the lower end of the telescopic frame and is positioned in the telescopic cavity, and the piston head is in sliding connection with the telescopic cavity.

The overall dimension of the piston head is consistent with that of the telescopic cavity, so that the piston head is effectively prevented from shaking when sliding in the telescopic cavity, and the telescopic scraping strip efficiency is prevented from being influenced.

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 external size of the roller, so that the interference between the roller groove and the roller is effectively prevented.

The telescopic part is positioned between the lower inner wall of the telescopic cavity and the lower end of the telescopic frame and is used for the telescopic frame to stretch.

The main scraping strip is fixedly arranged on the front side of the main framework and covers the front side face of the main framework, so that the scraping area is larger.

The flexible scraping strip is fixedly arranged on the front side of the telescopic frame and covers the front side face of the telescopic frame, so that the scraping area is larger.

The flexible scraping strip is consistent with the main scraping strip in thickness, so that the flexible scraping strip and the main scraping strip can be simultaneously scraped, and the scraping area and the scraping efficiency are improved.

The roller is located the gyro wheel groove, and the gyro wheel rotates with the expansion bracket and is connected, and the gyro wheel contacts with windshield boundary.

The bottom side of the roller is lower than the bottom side of the telescopic scraping strip, so that the telescopic scraping strip and the main scraping strip can be normally scraped.

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

The connecting block sets firmly in main strip upper end of scraping, and the connecting hole has been seted up to the connecting block upper end, and the connecting hole can be dismantled with the windshield wiper rocking arm and be connected.

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

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

Furthermore, grease is coated between the telescopic frame and the telescopic cavity, so that the telescopic frame can slide more smoothly.

Furthermore, the main framework and the telescopic frame are made of rigid materials, so that the main framework is prevented from being bent after being used for a long time, and the scraping efficiency of the main scraping strip and the scraping efficiency of the telescopic scraping strip are reduced.

Furthermore, main scraping strip and flexible scraping strip are elastic material, make main scraping strip and flexible scraping strip more paste windshield, improve and scrape and sweep efficiency.

3. Advantageous effects

Compare in prior art, the advantage of this application lies in:

(1) the scheme provides a new technical idea.

(2) The length of whole wiper is changed at any time when scraping and sweeping through the flexible of expansion bracket to this scheme, makes windshield be scraped the increase of area, reduces the production of scraping and sweeping the dead angle.

(3) The application principle of the scheme is clear, each part is simple in structure, convenient to disassemble and assemble, and convenient to use for operators.

(4) The scheme can be suitable for vehicle types of different sizes, reduces the types of manufacturer production, and has great beneficial effects on enterprise production and management cost.

(5) The length of the windscreen wiper is changed through the mechanical structure, energy is saved, and the service life is long.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present application;

FIG. 2 is a left side cross-sectional structural view of a first embodiment of the present application;

fig. 3 is a schematic perspective view of a main frame according to a first embodiment of the present application;

fig. 4 is a schematic perspective view of an expansion bracket according to a first embodiment of the present application;

fig. 5 is a schematic perspective view of a connection block according to a first embodiment of the present application;

FIG. 6 is a schematic diagram of an initial stage structure of the first embodiment and the second embodiment of the present application;

fig. 7 is a schematic structural diagram of an operation phase of the first embodiment and the second embodiment of the present application.

The reference numbers in the figures illustrate:

the device comprises a main framework 1, a telescopic cavity 101, a limiting block 102, a telescopic frame 2, a roller groove 201, a piston head 202, a telescopic part 3, a main scraping strip 4, a telescopic scraping strip 5, a roller 6, a connecting block 7, a connecting hole 701, a windshield boundary 8, a wiper arm 9 and a motor 10.

Detailed Description

The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The first embodiment is as follows: referring to fig. 1-5, an automatic retractable wiper blade includes a main frame 1, a retractable frame 2, a retractable portion 3, a main wiper strip 4, a retractable wiper strip 5, a roller 6, and a connecting block 7.

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

The opening at the upper end of the telescopic cavity 101 is fixedly provided with a limiting block 102, and the limiting block 102 effectively prevents the telescopic frame 2 from escaping out of the telescopic cavity 101 to be separated.

The lower end of the telescopic frame 2 is fixedly provided with a piston head 202, the piston head 202 is positioned in the telescopic cavity 101, and the piston head 202 is connected with the telescopic cavity 101 in a sliding manner.

The overall dimension of the piston head 202 is consistent with that of the telescopic cavity 101, so that the piston head 202 is effectively prevented from shaking when sliding in the telescopic cavity 101, and the efficiency of the telescopic scraper bar 5 is influenced.

Grease is coated between the piston head 202 and the telescopic cavity 101, so that the telescopic frame 2 can 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 external size of the roller 6, so that the interference between the roller groove 201 and the roller 6 is effectively prevented.

The expansion part 3 is a spring, one end of the spring is fixedly connected with the lower inner wall of the expansion cavity 101, the other end of the spring is fixedly connected with the lower end of the expansion bracket 2, the spring is always in a compression state, the expansion bracket 2 has a trend of being far away from the main framework 1, and when the roller 6 rolls along the boundary of the windshield, the tension state of the spring changes accordingly.

The main scraping strip 4 is fixedly arranged on the front side of the main framework 1, and the main scraping strip 4 covers the front side face of the main framework 1, so that the scraping area is larger.

The flexible scraping strip 5 is fixedly arranged on the front side of the telescopic frame 2, and the flexible scraping strip 5 covers the front side face of the telescopic frame 2, so that the scraping area is larger.

The thickness of the telescopic scraping strip 5 is consistent with that of the main scraping strip 4, so that the telescopic scraping strip 5 and the main scraping strip 4 can be used for simultaneously scraping and sweeping, and the scraping area and the scraping and sweeping efficiency are improved.

The roller 6 is positioned in the roller groove 201, the roller 6 is rotatably connected with the expansion bracket 2, and the roller 6 is contacted with the boundary stop block of the windshield.

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

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 with the boundary 8 of the windshield.

The connecting block 7 is fixedly arranged at the upper end of the main scraping strip 4, a connecting hole 701 is formed in the upper end of the connecting block 7, and the connecting hole 701 is detachably connected with the wiper rocker arm 9.

Main framework 1 and expansion bracket 2 are rigid material, reduce main framework 1 and produce the bending after long-term the using, lead to main scraping strip 4 and the 5 scraping efficiency reductions of flexible scraping strip.

The main scraping strip 4 and the telescopic scraping strip 5 are made of elastic materials, so that the main scraping strip 4 and the telescopic scraping strip 5 are more attached to the windshield, and the scraping efficiency is improved.

The second embodiment is as follows: the expansion part 3 comprises an upper magnet and a lower magnet, the upper magnet is fixedly connected with the lower inner wall of the expansion cavity 101, the lower magnet is fixedly connected with the lower end of the expansion frame 2, the opposite ends of the upper magnet and the lower magnet are magnetic poles with the same magnetism, repulsive force is generated between the upper magnet and the lower magnet, the expansion frame 2 has the trend of being far away from the main framework 1, and when the roller 6 rolls along the windshield boundary 8, the distance between the upper magnet and the lower magnet changes accordingly.

The working principle is as follows: the roller 6 contacts with the boundary of the automobile windshield, the telescopic part 3 is compressed, the telescopic frame 2 always has the trend of being far away from the main framework 1, and the telescopic frame 2 always slides in the telescopic cavity 101.

In the initial state, see fig. 6, the compression state of the telescopic part 3 is the tightest, the distance between the telescopic frame 2 and the lower inner wall of the telescopic cavity 101 is the shortest, along with the work of the motor 10, the swing arm 9 of the windshield wiper swings, the telescopic frame 2 rotates clockwise around the center of the connecting hole 701, the roller 6 rolls along the boundary 8 of the windshield, the potential energy of the telescopic part 3 is released, the telescopic frame 2 is far away from the main framework 1, the extending effect is realized, see fig. 7, and the dead angle of scraping and sweeping is reduced.

The swing arm 9 of the windshield wiper resets after swinging to the limit, the expansion bracket 2 rotates counterclockwise around the center of the connecting hole 701, the roller 6 rolls along the boundary 8 of the windshield, the potential energy of the expansion part 3 is accumulated, the expansion bracket 2 is close to the main framework 1, the shortening effect is realized, and the expansion bracket 2 is enabled to reset smoothly.

On the motorcycle type of equidimension not, windshield size is inconsistent, uses the wiper of this application, and applicable on the windshield of various sizes.

The application provides a new technical thought, through the flexible of expansion bracket 2, change the length of whole wiper at any time when scraping and sweeping, make windshield scrape the increase of sweeping area, reduce and scrape the production at dead angle, the application principle is clear, each part simple structure, easy dismounting, the operator uses conveniently, applicable in the motorcycle type of equidimension not, reduce the kind of producer production, there is not less lean effect to enterprise's production and administrative cost, make wiper length change through mechanical structure, energy saving, the life-span is longer.

The foregoing is only a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any person skilled in the art should be able to cover all equivalent or changes within the technical scope of the present disclosure, which is equivalent to the technical solution and the improvement concept of the present disclosure, and the protection scope of the present disclosure.

Claims

1. The utility model provides a wiper that can stretch out and draw back automatically which characterized in that: comprises a main framework (1), a telescopic frame (2), a telescopic part (3), a main scraping strip (4), a telescopic scraping strip (5), a roller (6) and a connecting block (7);

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

a limiting block (102) is fixedly arranged at an opening at the upper end of the telescopic cavity (101);

the lower end of the telescopic frame (2) is fixedly provided with a piston head (202), the piston head (202) is positioned in the telescopic cavity (101), and the piston head (202) is in sliding connection with the telescopic cavity (101);

the overall dimension of the piston head (202) is consistent with that of the telescopic cavity (101), so that the piston head (202) is effectively prevented from shaking when sliding in the telescopic cavity (101) to influence the efficiency of the telescopic scraping bar (5);

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 external size of the roller (6), so that the interference between the roller groove (201) and the roller is effectively prevented;

the telescopic part (3) is positioned between the lower inner wall of the telescopic cavity (101) and the lower end of the telescopic frame (2), and the telescopic part (3) is used for the telescopic frame (2) to stretch;

the main scraping strip (4) is fixedly arranged on the front side of the main framework (1), and the front side surface of the main framework (1) is covered with the main scraping strip (4), so that the scraping area is larger;

the telescopic scraping strip (5) is fixedly arranged on the front side of the telescopic frame (2), and the front side surface of the telescopic frame (2) is covered with the telescopic scraping strip (5), so that the scraping area is larger;

the thickness of the telescopic scraping strip (5) is consistent with that of the main scraping strip (4), so that the telescopic scraping strip (5) and the main scraping strip (4) can be used for simultaneously scraping, and the scraping area and the scraping efficiency are improved;

the roller (6) is positioned in the roller groove (201), the roller (6) is rotationally connected with the telescopic frame (2), and the roller (6) is contacted with the windshield boundary (8);

the bottom side of the roller (6) is lower than the bottom side of the telescopic scraping strip (5), so that the telescopic scraping strip (5) and the main scraping strip (4) can be normally scraped;

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 with the windshield boundary (8);

the connecting block is fixedly arranged at the upper end of the main scraping strip (4), a connecting hole (701) is formed in the upper end of the connecting block, and the connecting hole (701) is detachably connected with the wiper rocker arm (9).

2. The automatically extendable wiper blade of claim 1, wherein: the telescopic part (3) is a spring, one end of the spring is fixedly connected with the lower inner wall of the telescopic cavity (101), the other end of the spring is fixedly connected with the lower end of the telescopic frame (2), and the spring is always in a compression state.

3. The automatically extendable wiper blade of claim 1, wherein: the telescopic part (3) comprises an upper magnet and a lower magnet, the upper magnet is fixedly connected with the lower inner wall of the telescopic cavity (101), the lower magnet is fixedly connected with the lower end of the telescopic frame (2), and the opposite ends of the upper magnet and the lower magnet are magnetic poles with the same magnetism.

4. The automatically extendable wiper blade of claim 1, wherein: grease is coated between the telescopic frame (2) and the telescopic cavity (101).

5. The automatically extendable wiper blade of claim 1, wherein: the main framework (1) and the telescopic frame (2) are made of rigid materials.

6. The automatically extendable wiper blade of claim 1, wherein: the main scraping strip (4) and the telescopic scraping strip (5) are made of elastic materials.