CN201102531Y - Air cushion wiper device - Google Patents

Abstract

An air cushion wiping device includes a supporting arm (1) and a suspension. The bottom of the suspension is equipped with a rectangular air bag (4). The bottom face of the air bag (4) is equipped with a narrow slot (4a) along the length direction. A honeycomb duct (5) which is arranged along the same direction with the air bag is arranged above the air bag (4). The honeycomb duct (5) and the air bag (4) are connected through a branch pipe (6). The inner cavities of the honeycomb duct, the air bag and the branch pipe are communicated. The two ends of the honeycomb duct (5) are enclosed. The inner cavity of the honeycomb duct (5) is communicated with an air inlet pipe (7) which is arranged in the supporting arm (1). The utility model makes use of the air cushion suspension principle and adopts high pressure gas which can clean rain water on the surface of a windshield, swashing mud and other filth, thereby avoiding the scratching of the surface of the glass. At the same time, with small load during the working, a wiping motor is uneasy to be damaged and the service life of the wiping motor can be prolonged relatively. The air cushion wiping device can be applied to any vehicle type, even other places requiring the wiping, such as trains, steamboats, aircrafts, etc.

Description

Air cushion wiper device

technical field

The utility model relates to an automobile component, in particular to an air cushion wiper device.

Background technique

The car will inevitably encounter special weather conditions such as rain during driving. Rain, splashed mud and other dirt adhere to the windshield, which will block the driver's sight and affect the normal operation of the driver. This requires the use of rain Scraping device for timely cleaning. The traditional wiper device is composed of a support arm, a suspension and a rubber strip. One end of the support arm is connected to the output shaft of the wiper motor, the other end of the support arm is fixed to the middle of the top surface of the cantilever, and rubber is installed at the bottom of the cantilever. strip, and the bottom surface of the rubber strip is attached to the windshield. When the wiper motor is running, the support arm swings, and the support arm drives the rubber strip to move through the suspension, so that the rubber strip rubs against the surface of the windshield to drain accumulated water and dirt. During the working process of the wiper device, the rubber strip rubs against the glass surface repeatedly for a long time, which will cause adverse effects on the surface of the windshield. For example, when hard objects such as stones are attached to the windshield, it is easy The surface is scratched; at the same time, the friction resistance between the rubber strip and the glass surface is relatively large, so the load on the wiper motor is large, and it is easy to cause damage to the wiper motor after long-term use, and the service life of the wiper motor is not guaranteed. In addition, when there is dry dirt on the windshield, the dirt must be wetted by spraying water through the nozzle, and then rubbed repeatedly by the rubber strip to wipe it off. This process requires a large amount of water spray, and the effect is also not ideal.

Utility model content

The technical problem to be solved by the utility model is to provide an air cushion type wiper device which can prevent the windshield from being scratched and can effectively reduce the motor load.

The technical scheme of the utility model is as follows: an air cushion wiper device, including a support arm and a suspension. Strip-shaped airbag, the bottom surface of the airbag is provided with a slit along its length direction, and there is a guide tube arranged in the same direction above the airbag. The guide tube and the airbag are connected by a branch pipe. communicated; the two ends of the guide tube are closed, and the inner cavity of the guide tube communicates with the air intake tube arranged in the support arm.

Using the above technical scheme, install an air pump at a suitable position on the car, and the air pump supplies air to the intake pipe. Blow out. The utility model adopts the principle similar to the hovercraft, and uses air to form a layer of air cushion between the bottom surface of the airbag and the surface of the windshield, so that the airbag is suspended, and the airbag itself is not in contact with the glass surface. The arm swings back and forth, and the high-speed gas blown from the slits of the airbag continuously blows away the rainwater or dirt on the glass surface, so as to ensure that the driver's sight is not affected. Since there is no direct contact between the airbag and the glass, when there are hard objects such as stones on the surface of the glass, the gas blown out from the slits of the airbag can blow away the hard objects such as stones, effectively preventing the glass surface from being scratched; at the same time, rain The load of the wiper motor is greatly reduced during operation, the wiper motor is not easy to be damaged, and the service life can be extended accordingly.

In order to achieve a better cleaning effect, two strip-shaped airbags are installed side by side at the bottom of the above-mentioned suspension, and a guide pipe is arranged above each airbag, and each guide pipe is equipped with an air intake pipe.

The longitudinal section of the inner cavity of the airbag is funnel-shaped, which can not only guide the gas, but also ensure that the blown gas has sufficient pressure.

In order to make the structure of the whole device more compact, the above-mentioned guide tube is located in the airbag bracket, the bottom end of the airbag bracket is fixedly connected with the top surface of the airbag, and a positioning groove is respectively arranged on both sides of the airbag bracket, and the positioning groove is connected with the suspension bracket. The connecting buckle on the bottom is a snap fit.

The above-mentioned suspension is composed of an upper bracket and two lower brackets, wherein the middle part of the top surface of the upper bracket is connected with the support arm, the two ends of the upper bracket are respectively fixed with the tops of the two lower brackets, and there are two pairs of right-angled brackets at the bottom of the lower bracket. Shaped connecting buckle, the transverse edge of this connecting buckle is positioned at the locating groove of described airbag bracket side, is connected reliably like this between the airbag bracket and the lower bracket, and dismounting is convenient.

In order to make the gas entering the draft tube continuous and uniform, the above-mentioned air intake pipe is arranged along the arm, the outlet of the air intake pipe communicates with the middle part of the diversion pipe, and the two ends of the diversion pipe are connected with the top surface of the diversion pipe.

A water inlet pipe is arranged beside the air inlet pipe, and the outlet of the water inlet pipe communicates with the inner cavity of the air inlet pipe. Install a water spray pump at a suitable position on the car, and the water spray pump is connected to the water inlet pipe. When the dry dirt needs to be cleaned, the water spray pump turns on the water supply, and the water enters the intake pipe through the water inlet pipe, and is atomized under the action of high-pressure gas , forming mist, the mist acts on the surface of the windshield through the slits of the airbag, which can quickly decompose and blow away the dried dirt, not only requires less water spray, but also has good results.

Beneficial effects: the utility model utilizes the principle of air cushion suspension, and adopts high-pressure gas to clean up the rainwater, splashed mud and other dirt on the surface of the windshield, thereby avoiding the glass surface from being scratched; at the same time, the wiper motor works The load is small, the wiper motor is not easily damaged, and the service life can be extended accordingly. The utility model can be applicable to any vehicle type, even trains, ships, airplanes and other places where wiper work is required.

Description of drawings

Fig. 1 is the structure diagram of the utility model, also is the structure diagram of embodiment 1.

Fig. 2 is an enlarged view of part B of Fig. 1 .

Fig. 3 is a schematic diagram of the connection of the gas circuit in the utility model.

FIG. 4 is an enlarged cross-sectional view along line A-A of FIG. 1 .

FIG. 5 is a schematic structural diagram of Embodiment 2.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment 1, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, an air-cushion wiper device is composed of a support arm 1, a suspension, an air bag 4, a guide pipe 5, a branch pipe 6, an air intake pipe 7, The airbag bracket 8, the shunt pipe 9 and the water inlet pipe 10 are composed of components, wherein the suspension is composed of an upper bracket 2 and two lower brackets 3, the upper bracket 2 is arranged in the same direction as the support arm 1, and the top surface of the upper bracket 2 is Arched surface, the middle part of the arched surface is fixedly connected with the small end of the support arm 1, and the large end of the support arm 1 can be connected with the output shaft of the wiper motor (not shown in the figure). Driven by the wiper motor, The support arm 1 swings left and right with the wiper motor as the center. The two lower brackets 3 are arched, arranged side by side below the upper bracket 2, and the lower bracket 3 is arranged in the same direction as the upper bracket 2, and the two ends of the upper bracket 2 are fixed to the tops of the two lower brackets 3 respectively.

It can be seen from Fig. 1 and Fig. 4 that the airbag 4 is elongated and arranged in the same direction as the support arm 1. The bottom surface of the airbag 4 is provided with a slit 4a along its length direction, and the longitudinal section of the inner chamber of the airbag 4 is a funnel. shape. Air bag support 8 is positioned at the top of air bag 4, and the length of both is substantially equal, and the longitudinal section of air bag support 8 is " door " shape, has a top plate and two side plates, wherein the bottom of two side plates is fixed with the top surface of air bag 4 Connect, respectively offer a positioning groove on the outer surface of airbag bracket 8 both side plates. Correspondingly, one end of the lower bracket 3 is turned vertically downwards, and the flange is attached to the end of the corresponding end of the airbag bracket 8. A pair of connecting buckles are integrally formed at the place near the flange of the lower bracket 3 and at the other end of the lower bracket 3. 3a, the connecting buckle 3a is in the shape of a right angle, and the lateral side of the connecting buckle 3a is located in the positioning groove on the side of the airbag bracket 8, so that the airbag bracket 8 and the lower bracket 3 are engaged by snap-fitting.

It can be further seen from Fig. 1, Fig. 2, Fig. 3 and Fig. 4 that the guide tube 5 is located in the air bag bracket 8, the two ends of the guide tube 5 are closed, and the bottom surface is connected with the air bag 4 through a plurality of branch tubes 6, and the inside of the three The cavities are connected. The air intake pipe 7 is arranged along the support arm 1, part of the body of the air intake pipe 7 is located in the support arm 1, one end of the air intake pipe 7 is drawn downward from the position close to the big end of the support arm 1, and the other end passes through the upper bracket 2 and the shunt pipe The middle part of 9 communicates, and the two ends of the shunt pipe 9 are connected with the top surface of the flow guide pipe 5, so that the shunt pipe 9 communicates with the inner chamber of the flow guide pipe 5. A water inlet pipe 10 is arranged beside the air inlet pipe 7 , the outlet of the water inlet pipe 10 communicates with the inner chamber of the air inlet pipe 7 , and the connection is close to the outlet of the air inlet pipe 7 .

Embodiment 2, as shown in Fig. 5 and in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, in this embodiment, two airbags 4 are arranged side by side, and a longitudinal section in the shape of a "door" is fixed above the two airbags 4. Airbag bracket 8, and each airbag 4 is equipped with a guide tube 5, an air inlet pipe 7, a shunt pipe 9 and a water inlet pipe 10, and the rest of the structure of this embodiment is the same as that of Embodiment 1.

The utility model works like this: an air pump and a water spray pump are installed in suitable positions on the automobile, and the air pump supplies air to the intake pipe 7, and the water spray pump supplies water to the water inlet pipe 10. Start the switch of the wiper motor, the arm 1 swings left and right with the wiper motor as the center, and at the same time turn on the air pump, the high-pressure gas passes through the intake pipe 7 and the shunt pipe 9, enters the guide pipe 5, and then enters the air bag 4 through the branch pipe 6 Finally, the air is blown out from the slit 4a at the bottom of the airbag 4, and the air forms a layer of air cushion between the bottom surface of the airbag 4 and the surface of the windshield to suspend the airbag 4. The airbag 4 itself does not contact the glass surface, so that the 1 During the reciprocating swing process, the high-speed gas blown from the airbag slit 4a continuously blows away the rainwater or dirt on the glass surface, so as to ensure that the driver's sight is not affected. When the water spray pump is turned on for water supply, water enters the intake pipe 7 through the water inlet pipe 10, and is atomized under the action of high-pressure gas to form mist, which acts on the surface of the windshield through the airbag slit 4a, and can quickly remove the dried dirt Breaks down and blows away, requires less water spray and works well.

Claims (7)

1, a kind of air-cushion type Wiping device, comprise support arm (1) and suspension, one end of support arm (1) is connected with the middle part of suspension end face, it is characterized in that: strip shape air bag (4) is installed in the bottom of described suspension, the bottom surface of this air bag (4) is provided with a finedraw (4a) along its length direction, have the mozzle of arranging in the same way with it (5) in the top of air bag (4), be connected by arm (6) between this mozzle (5) and the air bag (4), three's inner chamber communicates; The closed at both ends of described mozzle (5), the inner chamber of mozzle (5) air inlet pipe (7) interior with being arranged on described support arm (1) is communicated with.

2, air-cushion type Wiping device according to claim 1, it is characterized in that: two strip shape air bags (4) are installed side by side in the bottom of described suspension, the top of each air bag (4) is provided with mozzle (5), and each root mozzle (5) is equipped with an air inlet pipe (7).

3, air-cushion type Wiping device according to claim 1 and 2 is characterized in that: the longitudinal cross-section of described air bag (4) inner chamber is infundibulate.

4, air-cushion type Wiping device according to claim 1 and 2, it is characterized in that: described mozzle (5) is arranged in air-bag support (8), captive joint with the end face of air bag (4) in the bottom of this air-bag support (8), in the two sides of air-bag support (8) positioning groove is set respectively, this positioning groove cooperates with the junction button clamping of suspension bottom.

5, air-cushion type Wiping device according to claim 4, it is characterized in that: described suspension is made of a upper bracket (2) and two lower brackets (3), wherein the middle part of upper bracket (2) end face is connected with support arm (1), the two ends of upper bracket (2) are fixed with the top of two lower brackets (3) respectively, have two pairs of junction buttons that are rectangular in shape (3a) in the bottom of lower bracket (3), the horizontal edge of this junction button (3a) is arranged in the positioning groove of described air-bag support (8) side.

6, air-cushion type Wiping device according to claim 1 and 2, it is characterized in that: described air inlet pipe (7) is arranged along support arm (1), the outlet of this air inlet pipe (7) communicates with the middle part of isocon (9), and two of isocon (9) is connected with the end face of mozzle (5).

7, air-cushion type Wiping device according to claim 1 and 2 is characterized in that: be provided with coolant inlet pipe (10) on the next door of described air inlet pipe (7), the outlet of this coolant inlet pipe (10) communicates with the inner chamber of air inlet pipe (7).

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