阅读说明：本技术 雨刮防护结构 (Windscreen wiper protective structure ) 是由 李宏玲 黄广强 程功 于 2021-07-06 设计创作，主要内容包括：本发明的提供一种雨刮防护结构,杆状骨架上设置有至少一个基座,杆状骨架两侧位置的基座上分别设置有伸缩支腿,伸缩支腿位于高位时其下端高于刮片的下端,伸缩支腿位于低位时与前挡玻璃接触且其下端低于刮片的下端。当雨刮不需要工作时,伸缩支腿伸出抵靠在挡风玻璃上,与伸缩支腿相连的杆状骨架以及刮片便会远离挡风玻璃,这样刮水臂的压合力主要由伸缩支腿承当,橡胶刮片整体呈悬空状态,避免橡胶刮片在非工作状态下受力变形,当需要其工作时伸缩支腿收起,橡胶刮片重新与挡风玻璃进行贴合工作。(The invention provides a windscreen wiper protective structure, wherein at least one base is arranged on a rod-shaped framework, telescopic supporting legs are respectively arranged on the bases at two sides of the rod-shaped framework, the lower ends of the telescopic supporting legs are higher than the lower ends of wiper blades when the telescopic supporting legs are positioned at a high position, the telescopic supporting legs are in contact with front windshield glass when the telescopic supporting legs are positioned at a low position, and the lower ends of the telescopic supporting legs are lower than the lower ends of the wiper blades. When the windscreen wiper does not need to work, the telescopic supporting legs extend out to abut against the windshield, the rod-shaped framework and the scraping blade connected with the telescopic supporting legs can be far away from the windshield, the pressing force of the water scraping arm is mainly borne by the telescopic supporting legs, the whole rubber scraping blade is in a suspended state, the rubber scraping blade is prevented from being stressed and deformed in a non-working state, the telescopic supporting legs are retracted when the windscreen wiper needs to work, and the rubber scraping blade is attached to the windshield again.)

1. The utility model provides a windscreen wiper protective structure which characterized in that: the rod-shaped framework (1) is provided with at least one base (10), the bases (10) at two sides of the rod-shaped framework (1) are respectively provided with a telescopic leg (20), the lower end of the telescopic leg (20) is higher than the lower end of the scraping blade (2) when the telescopic leg is located at a high position, the telescopic leg (20) is in contact with the front windshield and the lower end of the telescopic leg (20) is lower than the lower end of the scraping blade (2) when the telescopic leg is located at a low position.

2. The wiper protection structure of claim 1, wherein: the telescopic supporting leg (20) comprises a vertical rod (21), the length direction of the vertical rod (21) is perpendicular to the windshield surface, a groove (13) for accommodating the vertical rod (21) is formed in the position, corresponding to the vertical rod (21), of the base (10), the direction of a groove opening of the groove (13) is consistent with the length direction of the vertical rod (21), and an electromagnet (11) is arranged at the position of the groove bottom of the groove (13).

3. The wiper protection structure according to claim 2, characterized in that: an iron or magnetic annular table (22) is fixedly arranged on the rod body of the vertical rod (21), and a pressure spring (12) for driving the vertical rod (21) to extend out is arranged between the annular table (22) and the bottom of the groove (13).

4. The wiper protection structure according to claim 2, characterized in that: the lower end of the vertical rod (21) is provided with a transverse supporting leg (23) made of hard sponge, the length direction of the transverse supporting leg (23) is parallel to the length direction of the rod-shaped framework (1), and the cross section of the transverse supporting leg (23) is triangular, and one corner of the triangle faces towards the windshield.

5. The wiper protection structure according to claim 3, characterized in that: the electrifying switch of the electromagnet (11) is related to the starting switch of the wiper.

6. The wiper protection structure according to claim 2, characterized in that: the wiring of the electromagnet (11) on the base (10) is arranged along the water scraping arm, the middle base (10), the back of the rod-shaped framework (1) and the bases (10) at the two ends.

7. The wiper protection structure of claim 1, wherein: the base (10) is arranged at two ends and/or the middle part of the rod-shaped framework (1).

8. The wiper protection structure of claim 7, wherein: the base (10) in the middle of the rod-shaped framework (1) is provided with a mounting position connected with the water scraping arm.

Technical Field

The invention relates to the technical field of automobile parts, in particular to a windscreen wiper protection structure.

Background

The wiper is a rod-blade structure arranged in front of the windshield and mainly used for sweeping rain, snow and dust which obstruct the view on the windshield.

The motor drives the water scraping arm to swing, and the water scraping arm drives the water scraping blade assembly to be attached to the front windshield for scraping. The structure of the wiper blade assembly comprises a rod-shaped framework, a rubber strip-shaped wiper blade with the length direction consistent with the length direction of the rod-shaped framework is embedded into the rod-shaped framework, a sheet-shaped scraper is protruded towards the front windshield, and the sheet-shaped scraper is pressed on the front windshield in a scraping mode through swinging. However, rubber is easy to age, the scraping blade belongs to a wearing part, the wiper can be used only when raining, the wiper is in a non-working state under normal conditions, the scraping blade of the rubber part is pressed on glass by the scraping arm for a long time and is seriously deformed, when the wiper does not work for a long time, the rubber strip can be permanently deformed, abnormal sound can be generated when the wiper scrapes the glass, the cleaning effect is poor, the scraping blade needs to be replaced at this time, and the service life of the scraping blade is seriously influenced.

Disclosure of Invention

The invention aims to provide a wiper protection structure which can effectively prevent a wiper blade of a wiper from being pressed on a windshield in a non-working state.

In order to achieve the purpose, the invention adopts the following technical scheme that the windscreen wiper protection structure is characterized in that at least one base is arranged on a rod-shaped framework, telescopic supporting legs are respectively arranged on the bases at two sides of the rod-shaped framework, the lower ends of the telescopic supporting legs are higher than the lower ends of wiper blades when the telescopic supporting legs are located at a high position, the telescopic supporting legs are in contact with front windshield glass when the telescopic supporting legs are located at a low position, and the lower ends of the telescopic supporting legs are lower than the lower ends of the wiper blades.

When the windscreen wiper does not need to work, the telescopic supporting legs stretch out to abut against the windshield, the rod-shaped framework and the scraping blade which are connected with the telescopic supporting legs can be far away from the windshield, the pressing force of the water scraping arm is mainly borne by the telescopic supporting legs, the whole rubber scraping blade is in a suspended state, the rubber scraping blade is prevented from being stressed and deformed in a non-working state, the telescopic supporting legs are retracted when the windscreen wiper needs to work, and the rubber scraping blade is attached to the windshield again.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIGS. 2 and 3 are views showing the construction of the middle and both ends of the present invention;

fig. 4 and 5 are sectional views of the present invention in two working states.

Detailed Description

A wiper protection structure is characterized in that at least one base 10 is arranged on a rod-shaped framework 1, telescopic supporting legs 20 are respectively arranged on the bases 10 at two sides of the rod-shaped framework 1, the lower ends of the telescopic supporting legs 20 are higher than the lower ends of wiper blades 2 when the telescopic supporting legs 20 are located at a high position, the telescopic supporting legs 20 are in contact with front windshield glass when the telescopic supporting legs 20 are located at a low position, and the lower ends of the telescopic supporting legs are lower than the lower ends of the wiper blades 2.

The upper part, the lower part and the height in the scheme take the surface of the windshield as a reference surface, when the wiper does not need to work, the telescopic supporting legs 20 extend out to abut against the windshield, the rod-shaped framework 1 and the wiper blade 2 are driven to be far away from the windshield, so that the wiper blade 2 and the windshield form a certain interval, and the interval distance is the height difference between the lower end of the wiper blade 2 and the lower end of the telescopic supporting legs 20. The pressfitting power of the wiper arm is mainly born by the telescopic supporting legs 20, the whole rubber wiper blade 2 is in a suspended state, the rubber wiper blade 2 is prevented from being stressed and deformed in a non-working state, the telescopic supporting legs 20 are folded when the wiper arm needs to work, the rubber wiper blade 2 is attached to a windshield again, then the windscreen wiper starts to swing, and the rubber wiper blade 2 rubs on the glass to clean rainwater.

The telescopic supporting leg 20 comprises a vertical rod 21, the length direction of the vertical rod 21 is perpendicular to the windshield surface, a groove 13 for accommodating the vertical rod 21 is formed in the position, corresponding to the vertical rod 21, of the base 10, the direction of a groove opening of the groove 13 is consistent with the length direction of the rod of the vertical rod 21, and an electromagnet 11 is arranged at the position of the groove bottom of the groove 13. The arrangement of the groove 13 can effectively prevent the vertical rod 21 and the electromagnet 11 from being exposed to the outside too much, and the probability of aging or damage of the vertical rod 21 and the electromagnet is reduced. Meanwhile, the telescopic supporting leg 20 is contracted by electrifying the electromagnet 11, and when the telescopic supporting leg 20 contains magnetic materials, the telescopic supporting leg 20 can be extended by electrifying the electromagnet 11 with reverse current.

An iron or magnetic annular table 22 is fixedly arranged on the rod body of the vertical rod 21, and a pressure spring 12 for driving the vertical rod 21 to extend out is arranged between the annular table 22 and the bottom of the groove 13. When the electromagnet 11 is powered off, the vertical rod 21 can be driven to extend by the pressure spring 12, so that the electromagnet 11 is electrified only when the windscreen wiper works, the working time of the windscreen wiper is far shorter than the non-working time, and a vehicle can also start to work when the windscreen wiper works, so that the power shortage of a vehicle battery caused by the long-time electrification of the electromagnet 11 is avoided.

The lower end of the vertical rod 21 is provided with a transverse supporting leg 23 made of hard sponge, the length direction of the transverse supporting leg 23 is parallel to the length direction of the rod-shaped framework 1, and the cross section of the transverse supporting leg 23 is triangular, and one corner of the triangle faces towards the windshield. Avoid flexible landing leg 20 to cause great impact to windshield when stretching out, horizontal stabilizer blade 23 arrange also can effectively increase with windshield's area of contact simultaneously, can effectively reduce pressure, and the purpose that horizontal stabilizer blade 23 cross-section is triangle-shaped can utilize triangle-shaped pointed end to extrude debris, avoids having debris to hinder horizontal stabilizer blade 23 and windshield laminating on the windshield of horizontal stabilizer blade 23 corresponding position.

The energization switch of the electromagnet 11 is associated with a start switch of the wiper blade. Therefore, when the wiper is started, the electromagnet 11 can be synchronously started to retract the telescopic supporting leg 20.

The wiring of the electromagnet 11 on the base 10 is arranged along the water scraping arm, the middle base 10, the back of the rod-shaped framework 1 and the bases 10 at the two ends. The wiring mode is that wiring is nearby and the wiring can be hidden by utilizing the inner space of the rod-shaped framework 1.

The bases 10 are arranged at both ends and/or in the middle of the rod-shaped framework 1. The middle part of the rod-shaped framework 1 is provided with a base 10 for the stress center, so that the rod-shaped framework 1 is integrally far away from a windshield rather than tilting, the same purpose is achieved by arranging the bases 10 at the two ends of the rod-shaped framework 1, and in order to avoid the rod-shaped framework 1 from being bent when suspended, the bases 10 are preferably arranged at the two ends and the middle part of the rod-shaped framework 1.

The base 10 in the middle of the rod-shaped framework 1 is provided with a mounting position connected with the water scraping arm. The wiper arm is directly connected with the base 10, so that the wiring is convenient and additional parts are not required.