阅读说明：本技术 一种主动排水的除雾安全雨刷器 (Defogging safety windshield wiper of initiative drainage ) 是由 余淑豪 傅振兴 凌政锋 薛斯岐 周剑花 于 2021-08-23 设计创作，主要内容包括：本发明公开了一种主动排水的除雾安全雨刷器,包括雨刷、水泵及气泵；所述雨刷包括骨架、刷条；所述骨架的两侧分别设有第一水气通道及第二水气通道,且第一水气通道及第二水气通道均包括第一开口及第二开口；所述刷条设于第一水气通道的第一开口和第二水气通道的第一开口之间；所述水泵的进水口、气泵的出气口均与第一水气通道的第二开口、第二水气通道的第二开口连接,且于气泵向第一水气通道的第二开口输气时,水泵通过第二水气通道的第二开口抽水,于气泵向第二水气通道的第二开口输气时,水泵通过第一水气通道的第二开口抽水。刮雨时,能抽吸雨水的同时,减轻刮擦所产生的雾气。本发明具有刮水效率高,避免玻璃起雾的优点。(The invention discloses an actively draining defogging safety windshield wiper which comprises a windshield wiper, a water pump and an air pump, wherein the windshield wiper is arranged on the windshield wiper; the windshield wiper comprises a framework and a wiper strip; a first water-air channel and a second water-air channel are respectively arranged on two sides of the framework, and each of the first water-air channel and the second water-air channel comprises a first opening and a second opening; the brush strip is arranged between the first opening of the first moisture channel and the first opening of the second moisture channel; the water inlet of the water pump and the air outlet of the air pump are connected with the second opening of the first water-air channel and the second opening of the second water-air channel, the water pump pumps water through the second opening of the second water-air channel when the air pump conveys air to the second opening of the first water-air channel, and the water pump pumps water through the second opening of the first water-air channel when the air pump conveys air to the second opening of the second water-air channel. When in rain wiping, the fog generated by wiping can be reduced while rainwater can be sucked. The invention has the advantages of high water scraping efficiency and capability of avoiding the fogging of the glass.)

1. A defogging safety windshield wiper capable of actively draining water is characterized by comprising a windshield wiper, a water pump and an air pump;

the windshield wiper comprises a framework and a wiper strip; a first water-air channel and a second water-air channel are respectively arranged on two sides of the framework, and each of the first water-air channel and the second water-air channel comprises a first opening and a second opening; the brush strip is arranged between the first opening of the first moisture channel and the first opening of the second moisture channel;

the water inlet of the water pump and the air outlet of the air pump are connected with the second opening of the first water-air channel and the second opening of the second water-air channel, the water pump pumps water through the second opening of the second water-air channel when the air pump conveys air to the second opening of the first water-air channel, and the water pump pumps water through the second opening of the first water-air channel when the air pump conveys air to the second opening of the second water-air channel.

2. The active drainage defogging safety windshield wiper device according to claim 1, further comprising a reversing mechanism, wherein the water inlet of the water pump, the air outlet of the air pump, the second opening of the first moisture channel and the second opening of the second moisture channel are connected with the reversing mechanism, the reversing mechanism comprises a first station and a second station which can be alternately switched, the first station is that the air pump is communicated with the second opening of the second moisture channel, the water pump is communicated with the second opening of the first moisture channel, the second station is that the air pump is communicated with the second opening of the first moisture channel, and the water pump is communicated with the second opening of the second moisture channel.

3. The actively draining defogging safety wiper blade according to claim 2, wherein said reversing mechanism includes a first two-position three-way reversing valve, a second two-position three-way reversing valve; a water inlet of the water pump is connected with a second opening of the first water-gas channel and a second opening of the second water-gas channel through a first two-position three-way reversing valve; and the air outlet of the air pump is connected with the second opening of the first water-air channel and the second opening of the second water-air channel through a second two-position three-way reversing valve.

4. The active drainage defogging safety windshield wiper device according to claim 2, wherein the reversing mechanism comprises a two-position four-way reversing valve, and the water inlet of the water pump, the air outlet of the air pump, the second opening of the first water-air channel and the second opening of the second water-air channel are sequentially connected with the port P, the port T, the port A and the port B of the two-position four-way reversing valve.

5. The actively draining defogging safety wiper blade according to claim 2, wherein said reversing mechanism includes a valve body, a rotor, a drive mechanism;

the valve body is tubular, a first water pumping channel, a second gas transmission channel and a first gas transmission channel are sequentially arranged on the side wall of the valve body along the circumferential direction, a water inlet of the first water pumping channel, a water inlet of the second water pumping channel, a gas outlet of the second gas transmission channel and a gas outlet of the first gas transmission channel penetrate through the outer side wall of the valve body, and a water outlet of the first water pumping channel, a water outlet of the second water pumping channel, a gas inlet of the second gas transmission channel and a gas inlet of the first gas transmission channel penetrate through the inner side wall of the valve body;

the water inlet of the first water pumping channel and the air outlet of the first air transmission channel are connected with the second opening of the first water vapor channel; the water inlet of the second water pumping channel and the air outlet of the second air transmission channel are connected with a second opening of the second air transmission channel;

the rotor is axially and rotatably arranged in the valve body, the rotor is provided with a third water pumping channel and a third gas transmission channel, a water outlet of the third water pumping channel and a gas inlet of the third gas transmission channel penetrate through the end face of the rotor, and a water inlet of the third water pumping channel and a gas outlet of the third gas transmission channel penetrate through the side wall of the rotor; the water inlet of the water pump is connected with the water outlet of the third water pumping channel, and the air outlet of the air pump is connected with the air inlet of the third air conveying channel;

the driving mechanism is in transmission connection with the rotor to drive the rotor to axially rotate and synchronously change the direction with the windshield wiper so as to alternately switch the first station and the second station; the first station is that the water inlet of the third water pumping channel is communicated with the water outlet of the first water pumping channel, and the air outlet of the third air transmission channel is communicated with the air inlet of the second air transmission channel; the second station is that the water inlet of the third pumping channel is communicated with the water outlet of the second pumping channel, and the air outlet of the third air transmission channel is communicated with the air inlet of the first air transmission channel.

6. The actively draining defogging safety windshield wiper according to claim 5, wherein said windshield wiper further comprises a bracket, one end of said bracket is connected with the middle portion of the skeleton, the other end of the bracket is connected with the outer sidewall of the valve body;

the valve body still includes the elastic component, rotor and valve body are connected to the elastic component, actuating mechanism includes crank and motor, the motor is articulated with articulate one end, and the articulate other end is articulated with the rotor, and when the output of motor was rotatory, the crank drove rotor axial rotation to drive the valve body corotation through the elastic component, with the drive windshield wiper, and under brush strip and windshield's resistance effect, make rotor and valve body produce the deflection, in order to rotate to being in first station or second station, when the output switching-over rotation of motor, rotor, valve body, windshield wiper all commutate, and switch over the station.

7. The actively draining defogging safety windshield wiper device according to claim 5, wherein the water inlet of the first water pumping channel and the air outlet of the first air delivery channel are respectively connected with the second opening of the first water vapor channel through the first water pumping pipeline and the first air delivery pipeline, and the first water pumping pipeline and the first air delivery pipeline are both connected with the second opening of the first water vapor channel through the first check valve assembly, the first check valve assembly is used for limiting water from entering the first air delivery channel and limiting air from entering the first water pumping channel;

the water inlet of the second water pumping channel and the gas outlet of the second gas transmission channel are respectively connected with a second opening of the second water gas channel through a second water pumping pipeline and a second gas transmission pipeline, the second water pumping pipeline and the second gas transmission pipeline are respectively connected with the second opening of the second water gas channel through a second check valve assembly, and the second check valve assembly is used for limiting water from entering the second gas transmission channel and limiting gas from entering the second water pumping channel.

8. The actively draining defogging safety wiper as recited in claim 5 wherein said valve body further defines a first exhaust passage and a second exhaust passage; the air outlet of the first exhaust channel and the air outlet of the second exhaust channel penetrate through the outer side wall of the valve body, and the air inlet of the first exhaust channel and the air inlet of the second exhaust channel penetrate through the inner side wall of the valve body;

the first exhaust channel is located between the first water pumping channel and the second water pumping channel, the second exhaust channel is located between the second gas transmission channel and the first gas transmission channel, and in the station switching process, a gas inlet of the first exhaust channel and a gas inlet of the second exhaust channel are respectively communicated with a water inlet of the third water pumping channel and a gas outlet of the third gas transmission channel.

9. The actively draining defogging safety windshield wiper as recited in claim 1 wherein a plurality of said first openings of said first moisture passage are provided and are arranged in series along the length direction of said wiper strip; the first opening of second aqueous vapor passageway is equipped with a plurality of, and sets gradually along the length direction of brush strip.

Technical Field

The invention relates to the field of automobile wipers, in particular to an actively draining defogging safety wiper.

Background

In-process of driving the car in rainy day, need strike off the rainwater on the windshield through wiper usually to guarantee that driver's field of vision is clear, but traditional wiper generally can't strike off all water, all have the part to remain on the windshield, strike off inefficiency, in addition, wiper can cause glass to haze in scraping the windshield, can carry out the secondary to the driver field of vision and shelter from, be not convenient for provide stable safe driveability.

Disclosure of Invention

Therefore, a defogging safety windshield wiper with active drainage is needed to be provided to solve the problems that the windshield wiper in the prior art is low in wiping efficiency and the glass is easily fogged.

In order to achieve the aim, the inventor provides a defogging safety windshield wiper capable of actively draining water, which comprises a windshield wiper, a water pump and an air pump;

the windshield wiper comprises a framework and a wiper strip; a first water-air channel and a second water-air channel are respectively arranged on two sides of the framework, and each of the first water-air channel and the second water-air channel comprises a first opening and a second opening; the brush strip is arranged between the first opening of the first moisture channel and the first opening of the second moisture channel;

the water inlet of the water pump and the air outlet of the air pump are connected with the second opening of the first water-air channel and the second opening of the second water-air channel, the water pump pumps water through the second opening of the second water-air channel when the air pump conveys air to the second opening of the first water-air channel, and the water pump pumps water through the second opening of the first water-air channel when the air pump conveys air to the second opening of the second water-air channel.

As a preferable structure of the invention, the water pump further comprises a reversing mechanism, the water inlet of the water pump, the air outlet of the air pump, the second opening of the first water-air channel and the second opening of the second water-air channel are connected with the reversing mechanism, the reversing mechanism comprises a first station and a second station which can be switched alternately, the first station is that the air pump is communicated with the second opening of the second water-air channel, the water pump is communicated with the second opening of the first water-air channel, and the second station is that the air pump is communicated with the second opening of the first water-air channel, and the water pump is communicated with the second opening of the second water-air channel.

As a preferred structure of the invention, the reversing mechanism comprises a first two-position three-way reversing valve and a second two-position three-way reversing valve; a water inlet of the water pump is connected with a second opening of the first water-gas channel and a second opening of the second water-gas channel through a first two-position three-way reversing valve; and the air outlet of the air pump is connected with the second opening of the first water-air channel and the second opening of the second water-air channel through a second two-position three-way reversing valve.

As a preferable structure of the invention, the reversing mechanism comprises a two-position four-way reversing valve, and a water inlet of the water pump, a gas outlet of the air pump, a second opening of the first water-gas channel and a second opening of the second water-gas channel are sequentially connected with a port P, a port T, a port A and a port B of the two-position four-way reversing valve.

As a preferred structure of the present invention, the reversing mechanism includes a valve body, a rotor, and a driving mechanism;

the valve body is tubular, a first water pumping channel, a second gas transmission channel and a first gas transmission channel are sequentially arranged on the side wall of the valve body along the circumferential direction, a water inlet of the first water pumping channel, a water inlet of the second water pumping channel, a gas outlet of the second gas transmission channel and a gas outlet of the first gas transmission channel penetrate through the outer side wall of the valve body, and a water outlet of the first water pumping channel, a water outlet of the second water pumping channel, a gas inlet of the second gas transmission channel and a gas inlet of the first gas transmission channel penetrate through the inner side wall of the valve body;

the water inlet of the first water pumping channel and the air outlet of the first air transmission channel are connected with the second opening of the first water vapor channel; the water inlet of the second water pumping channel and the air outlet of the second air transmission channel are connected with a second opening of the second air transmission channel;

the rotor is axially and rotatably arranged in the valve body, the rotor is provided with a third water pumping channel and a third gas transmission channel, a water outlet of the third water pumping channel and a gas inlet of the third gas transmission channel penetrate through the end face of the rotor, and a water inlet of the third water pumping channel and a gas outlet of the third gas transmission channel penetrate through the side wall of the rotor; the water inlet of the water pump is connected with the water outlet of the third water pumping channel, and the air outlet of the air pump is connected with the air inlet of the third air conveying channel;

the driving mechanism is in transmission connection with the rotor to drive the rotor to axially rotate and synchronously change the direction with the windshield wiper so as to alternately switch the first station and the second station; the first station is that the water inlet of the third water pumping channel is communicated with the water outlet of the first water pumping channel, and the air outlet of the third air transmission channel is communicated with the air inlet of the second air transmission channel; the second station is that the water inlet of the third pumping channel is communicated with the water outlet of the second pumping channel, and the air outlet of the third air transmission channel is communicated with the air inlet of the first air transmission channel.

As a preferable structure of the invention, the windshield wiper further comprises a support, one end of the support is connected with the middle part of the framework, and the other end of the support is connected with the outer side wall of the valve body;

the valve body still includes the elastic component, rotor and valve body are connected to the elastic component, actuating mechanism includes crank and motor, the motor is articulated with articulate one end, and the articulate other end is articulated with the rotor, and when the output of motor was rotatory, the crank drove rotor axial rotation to drive the valve body corotation through the elastic component, with the drive windshield wiper, and under brush strip and windshield's resistance effect, make rotor and valve body produce the deflection, in order to rotate to being in first station or second station, when the output switching-over rotation of motor, rotor, valve body, windshield wiper all commutate, and switch over the station.

As a preferred structure of the present invention, the water inlet of the first water pumping channel and the air outlet of the first air transmission channel are respectively connected to the second opening of the first water vapor channel through a first water pumping pipeline and a first air transmission pipeline, and the first water pumping pipeline and the first air transmission pipeline are both connected to the second opening of the first water vapor channel through a first check valve assembly, the first check valve assembly is configured to limit water from entering the first air transmission channel and limit air from entering the first water pumping channel;

the water inlet of the second water pumping channel and the gas outlet of the second gas transmission channel are respectively connected with a second opening of the second water gas channel through a second water pumping pipeline and a second gas transmission pipeline, the second water pumping pipeline and the second gas transmission pipeline are respectively connected with the second opening of the second water gas channel through a second check valve assembly, and the second check valve assembly is used for limiting water from entering the second gas transmission channel and limiting gas from entering the second water pumping channel.

As a preferable structure of the invention, the valve body is further provided with a first exhaust passage and a second exhaust passage; the air outlet of the first exhaust channel and the air outlet of the second exhaust channel penetrate through the outer side wall of the valve body, and the air inlet of the first exhaust channel and the air inlet of the second exhaust channel penetrate through the inner side wall of the valve body;

the first exhaust channel is located between the first water pumping channel and the second water pumping channel, the second exhaust channel is located between the second gas transmission channel and the first gas transmission channel, and in the station switching process, a gas inlet of the first exhaust channel and a gas inlet of the second exhaust channel are respectively communicated with a water inlet of the third water pumping channel and a gas outlet of the third gas transmission channel.

As a preferable structure of the invention, a plurality of first openings of the first moisture channel are arranged and are sequentially arranged along the length direction of the brush strip; the first opening of second aqueous vapor passageway is equipped with a plurality of, and sets gradually along the length direction of brush strip.

Compared with the prior art, the defogging safety windshield wiper with active drainage in the technical scheme can suck water into the framework and convey air into the framework through the water pump and the air pump; because the two sides of the framework are respectively provided with the first water-air channel and the second water-air channel, and the first water-air channel and the second water-air channel respectively comprise a first opening and a second opening; the brush bar is arranged between the first opening of the first water-gas channel and the first opening of the second water-gas channel, so that when the brush bar moves towards the direction of the second water-gas channel, the air pump can deliver air to the second opening of the first water-gas channel, and the water pump can pump water through the second opening of the second water-gas channel; can the brush yoke when moving towards the direction at first aqueous vapor passageway place, the air pump is defeated gas simultaneously to the second opening of second aqueous vapor passageway, the water pump draws water through the second opening of first aqueous vapor passageway, one side that the brush yoke can ponding promptly can draw water, the opposite side can blow, when striking off the rainwater on the windshield, in the time of can sucking the rainwater on the windshield, can alleviate the produced fog of scraping, it is efficient to scrape water, can avoid glass to haze, guarantee that the driver field of vision does not receive the sheltering from, be convenient for provide stable safe driveability.

Drawings

FIG. 1 is a block diagram of an actively draining defogging safety windshield wiper according to an embodiment of the present invention;

fig. 2 is a perspective view of a wiper blade according to an embodiment of the present invention;

fig. 3 is a bottom view of a wiper blade according to an embodiment of the present invention;

fig. 4 is a partial plan view of a wiper blade according to an embodiment of the present invention;

fig. 5 is a partial sectional view of a wiper blade according to an embodiment of the present invention;

FIG. 6 is a block diagram of a reversing mechanism according to an embodiment of the present invention;

FIG. 7 is a vertical cross-sectional view of a reversing mechanism according to an embodiment of the present invention;

FIG. 8 is a transverse cross-sectional view of a reversing mechanism according to an embodiment of the present invention;

FIG. 9 is a connection diagram of the active drain diverter and the wiper according to one embodiment of the present invention;

fig. 10 is a partial view of fig. 9 according to an embodiment of the present invention.

Description of reference numerals:

1. a framework; 100. a second water gas channel; 101. a first moisture passage; 102. a first opening; 103. a second opening;

2. brushing the strip;

300. a valve body; 3000. a first pumping channel; 3001. a second pumping channel; 3002. a second gas transmission channel; 3003. a first gas transmission channel; 3004. a first exhaust passage; 3005. a second exhaust passage; 301. a rotor; 3010. a third pumping channel; 3011. a third gas transmission channel; 302. a crank;

4. a first pumping pipeline;

5. a first gas transmission pipeline;

6. a first one-way valve assembly;

7. a second pumping pipeline;

8. a second gas transmission pipeline;

9. a second one-way valve assembly;

10. a water pump;

11. and (4) a bracket.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

The invention provides an actively-drained safe defogging wiper which is used for scraping rainwater and the like on a windshield of an automobile, particularly can suck the scraped water away and transmit air to the windshield so as to reduce fog generated by scraping of the windshield, can quickly scrape off the rainwater on the windshield and absorb and discharge the rainwater, cannot cause secondary shielding, can maintain the temperature of the outer surface of the windshield and reduce the fogging phenomenon of the glass in the automobile.

Referring to fig. 1, in an embodiment, the safety wiper for defogging with active drainage includes a wiper, a water pump 10 and an air pump; the windshield wiper is a direct execution component for wiping the windshield, the water pump 10 is used for pumping away rainwater scraped by the windshield wiper, and the air pump is used for delivering air to the windshield so as to maintain the surface temperature of the windshield and reduce the fogging of the windshield.

Referring to fig. 2, fig. 3, fig. 4 and fig. 5, the wiper includes a frame 1 and a wiper strip 2; the framework 1 is used for placing the brush strips 2; the brush strip 2 is used for scraping windshield glass and can be a rubber strip, specifically, the brush strip 2 is long strip-shaped, the framework 1 is also corresponding long strip-shaped, and the brush strip 2 is fixed at the framework 1 along the length direction of the framework 1.

The two sides of the framework 1 are respectively provided with a first water-air channel 101 and a second water-air channel 100, the first water-air channel 101 and the second water-air channel 100 can be pipelines fixed on the two sides of the framework 1, and can also be channels formed inside the framework 1, and preferably, the first water-air channel 101 and the second water-air channel 100 are two channels formed inside the framework 1.

The first water gas channel 101 and the second water gas channel 100 both include a first opening 102 and a second opening 103, and the brush bar 2 is disposed between the first opening 102 of the first water gas channel 101 and the first opening 102 of the second water gas channel 100. A plurality of first openings 102 of the first moisture passage 101 may be arranged and are sequentially arranged along the length direction of the framework 1 (i.e. the brush bar 2); the first openings 102 of the second water gas channel 100 are provided in a plurality, and are sequentially arranged along the length direction of the frame 1 (i.e. the brush bar 2). The first openings 102 of the first water vapor channels 101 and the first openings 102 of the second water vapor channels 100 are arranged side by side and located at two sides of the brush bar 2 respectively, specifically, the brush bar 2 is fixed at the bottom of the framework 1, and the first openings 102 of the first water vapor channels 101 and the first openings 102 of the second water vapor channels 100 are also located at the bottom of the framework 1.

The number of the second openings 103 of the first water gas channel 101 is one, and the number of the second openings 103 of the second water gas channel 100 is one, specifically, the second openings 103 of the first water gas channel 101 and the second openings 103 of the second water gas channel 100 are both disposed at the back of the framework 1, and the back of the framework 1 is opposite to the bottom of the framework 1.

The water inlet of the water pump 10 and the air outlet of the air pump are connected with the second opening 103 of the first water-air channel 101 and the second opening 103 of the second water-air channel 100, and when the air pump conveys air to the second opening 103 of the first water-air channel 101, the water pump 10 pumps water through the second opening 103 of the second water-air channel 100, when the air pump conveys air to the second opening 103 of the second water-air channel 100, the water pump 10 pumps water through the second opening 103 of the first water-air channel 101, namely, when the left side of the brush bar 2 pumps water, the right side of the brush bar 2 blows air, and when the left side of the brush bar 2 blows air, the right side of the brush bar 2 pumps water.

In the actual use process, when the brush bar 2 moves towards the direction of the second water-air channel 100, rainwater is accumulated around the second water-air channel 100, at the moment, the air pump is controlled to deliver air to the second opening 103 of the first water-air channel 101, and simultaneously, the water pump 10 pumps water through the second opening 103 of the second water-air channel 100; when the brush bar 2 moves towards the direction of the first water-air channel 101, rainwater is accumulated around the first water-air channel 101, and at the same time, the air pump is controlled to supply air to the second opening 103 of the second water-air channel 100, and the water pump 10 pumps water through the second opening 103 of the first water-air channel 101. One side that brush strip 2 can ponding promptly can draw water, and one side that can fog can blow, when striking off the rainwater on the windshield, can alleviate the produced fog of scraping when can sucking the rainwater on the windshield, and it is efficient to scrape water, can avoid glass to fog, guarantees that the driver field of vision does not receive the sheltering from, is convenient for provide stable safe driving performance.

In order to change the air delivery path of the air pump and the water pumping path of the water pump 10 when the moving direction of the brush bar 2 is changed, in a further embodiment, the brush bar further comprises a reversing mechanism, the connection of the water inlet of the water pump 10, the air outlet of the air pump, the second opening 103 of the first water-air channel 101 and the second opening 103 of the second water-air channel 100 is connected with the reversing mechanism, the reversing mechanism comprises a first station and a second station which can be switched alternately, the first station is that the air pump is communicated with the second opening 103 of the second water-air channel 100, the water pump 10 is communicated with the second opening 103 of the first water-air channel 101, and the second station is that the air pump is communicated with the second opening 103 of the first water-air channel 101, and the water pump 10 is communicated with the second opening 103 of the second water-air channel 100. Specifically, when the brush bar 2 moves in the direction of the second water gas channel 100, the reversing mechanism is in the second station, and when the brush bar 2 changes to move in the direction of the first water gas channel 101, the reversing mechanism switches the station from the second station to the first station.

The reversing mechanism capable of realizing the alternate switching of the first station and the second station has various types, and in a certain embodiment, the reversing mechanism comprises a first two-position three-way reversing valve and a second two-position three-way reversing valve; the water inlet of the water pump 10 is connected with the second opening 103 of the first water-gas channel 101 and the second opening 103 of the second water-gas channel 100 through a first two-position three-way reversing valve, and the water pump 10 is provided with two water pumping lines which are respectively: a water pumping line for pumping water from the first water-gas channel 101 by the water pump 10 and a water pumping line for pumping water from the second water-gas channel 100 by the water pump 10, wherein the two water pumping lines can be alternately switched; the gas outlet of air pump passes through the second two tee bend switching-over valves and is connected with second opening 103 of first aqueous vapor passageway 101, second opening 103 of second aqueous vapor passageway 100, and the air pump has two air extraction lines, is respectively: the air pump can alternatively switch between an air pumping line for pumping air from the first water-air passage 101 and an air pumping line for pumping air from the second water-air passage 100.

In another embodiment, the reversing mechanism comprises a two-position four-way reversing valve, and the water inlet of the water pump 10, the air outlet of the air pump, the second opening 103 of the first water-air channel 101, and the second opening 103 of the second water-air channel 100 are sequentially connected with the port P, the port T, the port a, and the port B of the two-position four-way reversing valve. The first station is that the air pump is communicated with the second opening 103 of the second water-air channel 100, the water pump 10 is communicated with the second opening 103 of the first water-air channel 101, and the second station is that the air pump is communicated with the second opening 103 of the first water-air channel 101, and the water pump 10 is communicated with the second opening 103 of the second water-air channel 100. When the two-position four-way reversing valve is switched to the first station, the port P is communicated with the port A, and the port T is communicated with the port B; when the two-position four-way reversing valve is switched to the second station, the port P is communicated with the port B, and the port T is communicated with the port A.

Referring to fig. 6, 7, 8 and 9, in a preferred embodiment, the reversing mechanism includes a valve body 300, a rotor 301, and a driving mechanism;

the valve body 300 is tubular, a first water pumping channel 3000, a second water pumping channel 3001, a second gas transmission channel 3002 and a first gas transmission channel 3003 are sequentially arranged on the side wall of the valve body 300 along the circumferential direction, a water inlet of the first water pumping channel 3000, a water inlet of the second water pumping channel 3001, a gas outlet of the second gas transmission channel 3002 and a gas outlet of the first gas transmission channel 3003 all penetrate through the outer side wall of the valve body 300, and a water outlet of the first water pumping channel 3000, a water outlet of the second water pumping channel 3001, a gas inlet of the second gas transmission channel 3002 and a gas inlet of the first gas transmission channel 3003 all penetrate through the inner side wall of the valve body 300;

a water inlet of the first water pumping channel 3000 and a gas outlet of the first gas transmission channel 3003 are both connected with the second opening 103 of the first water gas channel 101; a water inlet of the second water pumping channel 3001 and a gas outlet of the second gas transmission channel 3002 are both connected with the second opening 103 of the second water gas channel 100;

the rotor 301 is columnar, the specific shape and size of the rotor 301 are matched with the interior of the valve body 300, the rotor 301 is axially and rotatably arranged in the valve body 300, the outer side wall of the rotor 301 is in sealing contact with the inner side wall of the valve body 300, the rotor 301 is provided with a third water pumping channel 3010 and a third gas transmission channel 3011, the water outlet of the third water pumping channel 3010 and the gas inlet of the third gas transmission channel 3011 both penetrate through the end face of the rotor 301, and the water inlet of the third water pumping channel 3010 and the gas outlet of the third gas transmission channel 3011 both penetrate through the side wall of the rotor 301; a water inlet of the water pump 10 is connected with a water outlet of the third water pumping channel 3010, and a gas outlet of the gas pump is connected with a gas inlet of the third gas transmission channel 3011;

the driving mechanism is in transmission connection with the rotor 301 to drive the rotor 301 to axially rotate and synchronously change the direction with the windshield wiper, namely when the moving direction of the windshield wiper changes, the driving mechanism drives the rotor 301 to axially rotate in the reverse direction, so that the first station and the second station are alternately switched; in the first station, while the water inlet of the third water pumping channel 3010 is communicated with the water outlet of the first water pumping channel 3000, the air outlet of the third air transmission channel 3011 is communicated with the air inlet of the second air transmission channel 3002; in the second station, while the water inlet of the third water pumping channel 3010 is communicated with the water outlet of the second water pumping channel 3001, the air outlet of the third air transmission channel 3011 is communicated with the air inlet of the first air transmission channel 3003.

The driving mechanism can be a power mechanism independent of driving the windshield wiper to do reciprocating motion, namely, the reversing mechanism and the windshield wiper are respectively provided with a driving mechanism; or a mechanism for driving the windshield wiper to reciprocate in the automobile, namely a reversing mechanism and a common driving mechanism of the windshield wiper. In order to synchronize the switching of the first station and the second station with the switching of the moving direction of the brush bar 2 and realize the station-adaptive switching, it is preferable that the reversing mechanism and the wiper share the driving mechanism, therefore, in a further embodiment, the wiper further comprises a bracket 11, one end of the bracket 11 is connected with the middle part of the framework 1, and the other end of the bracket 11 is connected with the outer side wall of the valve body 300; the valve body 300 further includes an elastic member, which may be a spring, the elastic member connects the rotor 301 and the valve body 300, and the driving mechanism includes a crank 302 and a motor.

The motor is hinged to one end of the crank 302, the other end of the crank 302 is hinged to the rotor 301, when the output end of the motor rotates, the crank 302 drives the rotor 301 to axially rotate and drives the valve body 300 to rotate in the same direction through the elastic piece to drive the windshield wiper, and under the resistance action of the brush strip 2 and the windshield, the rotor 301 and the valve body 300 deflect to rotate to be located at a first station or a second station, and when the output end of the motor rotates in a reversing mode, the rotor 301, the valve body 300 and the windshield wiper all reverse and switch stations.

The brush bar 2 moves towards the direction of the second water-air channel 100 under the driving of the driving mechanism, and simultaneously, the reversing mechanism is switched to a second station, at the moment, the air pump conveys air to the second opening 103 of the first water-air channel 101 and blows air to the periphery of the first water-air channel 101, and the water pump 10 pumps water through the second opening 103 of the second water-air channel 100 to pump away rainwater accumulated around the second water-air channel 100; under the driving of the driving mechanism, the brush bar 2 moves towards the direction of the first water-air channel 101, and meanwhile, the reversing mechanism is also switched to the first station, at the moment, the air pump conveys air to the second opening 103 of the second water-air channel 100 and blows air to the periphery of the second water-air channel 100, and the water pump 10 pumps water through the second opening 103 of the first water-air channel 101 to pump away rainwater accumulated around the first water-air channel 101. Therefore, the wiper can always keep the moving direction side of the wiper as the water suction side and the other side as the air blowing side.

In a further embodiment, the water inlet of the first water pumping channel 3000 and the air outlet of the first air transportation channel 3003 are respectively connected to the second opening 103 of the first air transportation channel 101 through a first water pumping pipe 4 and a first air transportation pipe 5, and the first water pumping pipe 4 and the first air transportation pipe 5 may be connected to the second opening 103 of the first air transportation channel 101 through a tee pipe. In addition, in order to avoid rainwater entering the first air delivery pipe 5 during pumping and to avoid air entering the first pumping pipe 4 during pumping, please refer to fig. 10, in a preferred embodiment, the first pumping duct 4 and the first air delivery duct 5 are both connected to the second opening 103 of the first air delivery passage 101 through a first check valve assembly 6, the first check valve assembly 6 is used for restricting water from entering the first air delivery passage 3003, and restricting air from entering the first pumping passage 3000, specifically, first check valve group can be including two first check valves, and two first check valves are located first pipeline 4, the first gas transmission pipeline 5 department of pumping respectively, and the accessible direction of the first check valve of pipeline 4 department of pumping is first aqueous vapor passageway 101 to the direction of reversing mechanism, and the accessible direction of the first check valve of first gas transmission passageway 3003 department is the direction of reversing mechanism to first aqueous vapor passageway 101.

Likewise, in a further embodiment, the water inlet of the second water pumping channel 3001 and the air outlet of the second air delivery channel 3002 are respectively connected to the second opening 103 of the second water gas channel 100 through a second water pumping pipe 7 and a second air delivery pipe 8, and the second water pumping pipe 7 and the second air delivery pipe 8 may be connected to the second opening 103 of the second water gas channel 100 through a tee. In addition, in order to avoid rainwater entering the second air delivery pipe 8 during pumping and gas entering the second water pumping pipe 7 during pumping, the second water pumping pipe 7 and the second air delivery pipe 8 are both connected with the second opening 103 of the second water gas channel 100 through the second check valve assembly 9, and the second check valve assembly 9 is used for limiting water entering the second air delivery channel 3002 and limiting gas entering the second water pumping channel 3001. Specifically, the second check valve group may include two second check valves, the two second check valves are respectively disposed at the second water pumping pipeline 7 and the second gas transmission pipeline 8, a direction of the second check valve at the second water pumping pipeline 7 is a direction from the second water gas channel 100 to the reversing mechanism, and a direction of the second check valve at the second gas transmission channel 3002 is a direction from the reversing mechanism to the second water gas channel 100.

In order to make the rotor 301 and the valve body 300 rotate axially smoothly with each other, in a further embodiment, the valve body 300 is further opened with a first exhaust passage 3004 and a second exhaust passage 3005; the air outlet of the first exhaust channel 3004 and the air outlet of the second exhaust channel 3005 penetrate through the outer side wall of the valve body 300, and the air inlet of the first exhaust channel 3004 and the air inlet of the second exhaust channel 3005 penetrate through the inner side wall of the valve body 300; first exhaust passage is located between first pumping passage 3000, the second pumping passage 3001, second exhaust passage 3005 is located between second air delivery passageway 3002, the first air delivery passageway 3003, and in the station switching process, the air inlet of first exhaust passage 3004, the air inlet of second exhaust passage 3005 communicate with the water inlet of third pumping passage 3010, the gas outlet of third air delivery passage 3011 respectively to guarantee that the pressure of third air delivery passage 3011, the inside of third pumping passage 3010 is unanimous with the outside air.

It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.