Nozzle assembly for windshield washing system

Abstract

The utility model relates to the technical field of automobile windshield cleaning, in particular to a nozzle assembly for a windshield cleaning system, which comprises a nozzle body and an inserting piece, the inserting piece is inserted into a clamping groove arranged at the front end of the nozzle body, and the clamping groove is communicated with a liquid inlet flow channel arranged at the rear end of the nozzle body. Main runners are respectively formed in the upper side and the lower side of the insertion sheet; the front end of the lower side of the insertion piece is provided with a trapezoidal opening communicated with the main flow channel on the same side, and the front end of the upper side of the insertion piece is provided with a straight cylindrical opening communicated with the main flow channel on the same side. The number of the straight-column-shaped openings is two, a straight water column sprayed out of one straight-column-shaped opening is located in the middle of the fan-shaped water mist sprayed out of the trapezoid opening, and a straight water column sprayed out of the other straight-column-shaped opening is located on the outer side of the fan-shaped water mist sprayed out of the trapezoid opening. The fan-shaped water mist spraying device is simple in structural design, liquid spraying amount in the middle of fan-shaped water mist is supplemented, consumption and waste of washing liquid are reduced to the maximum extent, and spraying coverage area is large.

Description

Technical Field

[0001] This utility model relates to the field of automotive windshield cleaning technology, and in particular to a nozzle assembly for a windshield cleaning system. Background Technology

[0002] When a car is driving, it kicks up dust from the road. When this dust adheres to the windshield, it can affect the driver's vision and impair safe driving. Therefore, it is necessary to spray washer fluid to cover the glass surface, and then have the wipers clean the windshield promptly.

[0003] Currently, commonly used nozzles consist of a nozzle body and a blade. The blade enables the nozzle to spray a fan-shaped water mist, allowing the detergent to be sprayed over a large area on the windshield. To further increase the spray area, existing nozzles often have multiple columnar outlets added to the blades, resulting in multiple straight water jets, or a double-layer fan-shaped water mist design. While these designs increase the spray area to some extent, they have the following drawbacks: (1) the placement of the columnar outlets is not targeted, neglecting the issue of insufficient liquid volume in the middle of the fan-shaped water mist; (2) the double-layer fan-shaped water mist consumes a large amount of detergent, leading to significant waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a nozzle assembly for windshield cleaning systems that has a simple structural design, supplements the amount of liquid sprayed in the middle of the fan-shaped water mist, minimizes the consumption and waste of washing liquid, and has a large spray coverage area.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a nozzle assembly for a windshield cleaning system, including a nozzle body and an insert, wherein the insert is inserted into a slot opened at the front end of the nozzle body, and the slot is connected to a liquid inlet channel opened at the rear end of the nozzle body; a main channel is opened on the upper and lower sides of the insert; a trapezoidal opening is opened at the lower front end of the insert and is connected to the main channel on the same side; a straight cylindrical opening is opened at the upper front end of the insert and is connected to the main channel on the same side; there are two straight cylindrical openings, one of which sprays a straight water jet located in the middle of the fan-shaped water mist sprayed from the trapezoidal opening, and the other straight cylindrical opening sprays a straight water jet located outside the fan-shaped water mist sprayed from the trapezoidal opening.

[0006] Furthermore, an oscillation zone is provided in the lower middle part of the insert, and an oscillation structure is provided in the oscillation zone to increase the radiation area of ​​the fan-shaped water mist sprayed from the trapezoidal nozzle. The trapezoidal nozzle is connected to the main channel on the same side through the oscillation zone.

[0007] Furthermore, the oscillation structure includes two opposing flow dividers, with a first internal flow channel formed between the two flow dividers and a second internal flow channel formed between the flow dividers and the inner wall of the oscillation zone.

[0008] Furthermore, the first internal flow channel gradually widens along the direction of liquid flow.

[0009] Furthermore, a flow channel is provided in the lower middle part of the insert, and the second inner flow channel is connected to the main flow channel on the same side through the flow channel.

[0010] Furthermore, the four corners of the oscillation zone are all rounded.

[0011] Furthermore, a drainage channel is provided in the upper middle part of the insert, and the two straight cylindrical openings are respectively connected to the main channel on the same side through the drainage channel.

[0012] Furthermore, the drainage channel gradually narrows along the direction of liquid flow.

[0013] Furthermore, a guide groove is provided in the upper middle part of the insert, and a guide ridge corresponding to the guide groove is provided on the inner top wall of the slot.

[0014] Furthermore, a protrusion is provided on one side of the front end of the insert, and a groove corresponding to the protrusion is provided in the slot of the card slot.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model uses a straight column of water sprayed from a straight column nozzle to be located in the middle of the fan-shaped water mist sprayed from the trapezoidal nozzle, so as to fully compensate for the problem of insufficient liquid sprayed in the middle of the fan-shaped water mist. At the same time, another straight column of water sprayed from a straight column nozzle is located on the outside of the fan-shaped water mist sprayed from the trapezoidal nozzle, close to column A, so as to cover the area that the fan-shaped water mist cannot reach, thereby increasing the spray coverage area and minimizing the consumption and waste of washing liquid.

[0017] (2) This utility model uses the combination of guide groove and guide ridge to guide and position the insert during the insertion of the insert into the slot, which increases the ease of installation.

[0018] (3) The present invention prevents the insert and the nozzle body from being installed backwards during assembly by using the combination of protrusion and groove, thus avoiding spraying failure caused by backward installation. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2This is a schematic diagram of the card slot in this utility model;

[0022] Figure 3 This is a schematic diagram of the straight cylindrical opening in this utility model;

[0023] Figure 4 This is a schematic diagram of the trapezoidal opening in this utility model;

[0024] Figure 5 This is a schematic diagram of the oscillation zone in this utility model;

[0025] Figure 6 This is the state when the utility model is in use. Figure 1 ;

[0026] Figure 7 This is the state when the utility model is in use. Figure 2 ;

[0027] Figure 8 This is a schematic diagram of the flow channel in this utility model.

[0028] In the diagram: 100, Nozzle body; 110, Slot; 111, Guide ridge; 112, Groove; 120, Liquid inlet channel; 200, Insert; 210, Main channel; 220, Trapezoidal inlet; 230, Straight cylindrical inlet; 240, Oscillation zone; 250, Diverting channel; 260, Draining channel; 270, Guide groove; 280, Through hole; 300, Oscillation structure; 310, Diverting block; 320, First inner channel; 330, Second inner channel; 400, Protrusion. Detailed Implementation

[0029] The present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] Example 1

[0031] like Figures 1-4 , Figure 6 and Figure 7As shown, a nozzle assembly for a windshield cleaning system includes a nozzle body 100 and an insert 200. The insert 200 is inserted into a slot 110 at the front end of the nozzle body 100, and the slot 110 is connected to a liquid inlet channel 120 at the rear end of the nozzle body 100. Main channels 210 are respectively opened on the upper and lower sides of the insert 200. A trapezoidal opening 220 connected to the main channel 210 on the same side is opened on the lower front end of the insert 200, and a straight cylindrical opening 230 connected to the main channel 210 on the same side is opened on the upper front end of the insert 200. There are two straight cylindrical openings 230. The straight water jet sprayed from one straight cylindrical opening 230 is located in the middle of the fan-shaped water mist sprayed from the trapezoidal opening 220, and the straight water jet sprayed from the other straight cylindrical opening 230 is located outside the fan-shaped water mist sprayed from the trapezoidal opening 220. Specifically, the nozzle body 100 is mounted on the sheet metal part by bolts; the upper main channel 210 is connected to the slot 110; the main channels 210 on the upper and lower sides of the insert 200 are connected by through holes 280 opened on the insert 200; the trapezoidal opening 220 is set between two straight cylindrical openings 230.

[0032] A straight water jet is sprayed from a straight cylindrical nozzle 230 in the middle of the fan-shaped water mist sprayed from the trapezoidal nozzle 220, which fully compensates for the insufficient amount of liquid sprayed in the middle of the fan-shaped water mist. At the same time, another straight cylindrical nozzle 230 sprays a straight water jet on the outside of the fan-shaped water mist sprayed from the trapezoidal nozzle 220, close to column A, to cover the area that the fan-shaped water mist cannot reach, thereby increasing the spray coverage area and minimizing the consumption and waste of detergent.

[0033] like Figure 4 As shown, a vibration zone 240 is provided in the lower center of the insert 200, and a vibration structure 300 is provided within the vibration zone 240 to increase the radiation area of ​​the fan-shaped water mist sprayed from the trapezoidal nozzle 220. The trapezoidal nozzle 220 is connected to the main channel 210 on the same side through the vibration zone 240. Specifically, the four corners of the vibration zone 240 are all rounded. Because the corners of the vibration zone 240 near the trapezoidal nozzle 220 are rounded, the washing liquid in the vibration zone 240 is fully impacted, thereby causing the washing liquid to be instantly atomized, resulting in a wider spray range and more uniform spray.

[0034] like Figure 4 and Figure 5 As shown, the oscillation structure 300 includes two opposing flow dividers 310, forming a first inner flow channel 320 between the two flow dividers 310, and a second inner flow channel 330 between the flow dividers 310 and the inner wall of the oscillation zone 240. The washing liquid flowing in the first inner flow channel 320 merges with the washing liquid flowing in the two second inner flow channels 330 and enters the trapezoidal opening 220, which sprays the washing liquid out in a fan shape. Specifically, the first inner flow channel 320 gradually widens along the liquid flow direction.

[0035] like Figure 3 As shown, a flow channel 260 is provided in the upper middle part of the insert 200, and two straight cylindrical nozzles 230 are connected to the main flow channel 210 on the same side through the flow channel 260. Specifically, the flow channel 260 gradually narrows along the liquid flow direction to ensure sufficient pressure so that the straight cylindrical nozzles 230 eject a straight water column.

[0036] like Figure 2 and Figure 3 As shown, a guide groove 270 is provided in the upper center of the insert 200, and a guide ridge 111 corresponding to the guide groove 270 is provided on the inner top wall of the slot 110. Specifically, the guide groove 270 is located between the two drainage channels 260. Through the cooperation of the guide groove 270 and the guide ridge 111, the insert 200 is guided and positioned during insertion into the slot 110, increasing the ease of installation.

[0037] like Figure 2 and Figure 3 As shown, a protrusion 400 is provided on one side of the front end of the insert 200, and a groove 112 corresponding to the protrusion 400 is provided in the slot of the slot 110. The cooperation between the protrusion 400 and the groove 112 prevents the insert 200 from being installed backwards when it is assembled with the nozzle body 100, thus avoiding spraying failure caused by backward installation.

[0038] In use, the washing liquid enters the slot 110 from the inlet channel 120, then enters the upper main channel 210 from the slot 110, and simultaneously enters the lower main channel 210 through the through hole 280. Within the upper main channel 210, the washing liquid flows through the guide channel 260 and, under pressure, is ejected as two straight jets of water from two cylindrical nozzles 230. Within the lower main channel 210, the washing liquid enters the oscillation zone 240, where it undergoes periodic oscillation through the oscillation structure 300. Under pressure, it is then ejected as a fan-shaped water mist from the trapezoidal nozzle 220. The periodic oscillation of the washing liquid within the oscillation zone 240 via the oscillation structure 300 is existing technology, and its specific principle will not be described in detail here.

[0039] Example 2

[0040] like Figure 8 As shown, this embodiment adds a diversion channel 250 to the basic embodiment 1. The diversion channel 250 is formed in the lower middle part of the insert 200, and the second inner flow channel 330 is connected to the main flow channel 210 on the same side through the diversion channel 250. The diversion channel 250 increases the flow rate of the second inner flow channel 330, further ensuring that the washing liquid in the oscillation zone 240 fully impacts each other.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A nozzle assembly for a windshield cleaning system, comprising a nozzle body (100) and an insert piece (200), the insert piece (200) being inserted into a clamping groove (110) formed at a front end of the nozzle body (100), the clamping groove (110) being in communication with a liquid inlet channel (120) formed at a rear end of the nozzle body (100); characterized in that: The upper and lower sides of the insert piece (200) are respectively provided with main flow channels (210); the lower side of the front end of the insert piece (200) is provided with a trapezoidal port (220) in communication with the same side main flow channel (210), and the upper side of the front end of the insert piece (200) is provided with a straight column-shaped port (230) in communication with the same side main flow channel (210); the straight column-shaped port (230) is two, one of which sprays a straight water column in the middle of the fan-shaped water mist sprayed by the trapezoidal port (220), and the other sprays a straight water column on the outside of the fan-shaped water mist sprayed by the trapezoidal port (220).

2. The nozzle assembly for a windscreen washing system of claim 1, wherein: The lower middle part of the insert piece (200) is provided with an oscillation area (240), and the oscillation area (240) is provided with an oscillation structure (300) to improve the radiation area of the fan-shaped water mist sprayed by the trapezoidal port (220); the trapezoidal port (220) is in communication with the same side main flow channel (210) through the oscillation area (240).

3. The nozzle assembly for a windscreen washing system of claim 2, wherein: The oscillation structure (300) comprises two oppositely arranged flow dividing blocks (310), and a first inner flow channel (320) is formed between the two flow dividing blocks (310); a second inner flow channel (330) is formed between the flow dividing blocks (310) and the inner side wall of the oscillation area (240).

4. The nozzle assembly for a windscreen washing system of claim 3, wherein: The first inner flow channel (320) gradually widens along the liquid flow direction.

5. The nozzle assembly for a windscreen washing system of claim 3, wherein: The lower middle part of the insert piece (200) is provided with a flow dividing channel (250), and the second inner flow channel (330) is in communication with the same side main flow channel (210) through the flow dividing channel (250).

6. The nozzle assembly for a windscreen washing system of claim 2, wherein: The four corners of the oscillation area (240) are all arc transitions.

7. The nozzle assembly for a windscreen washing system of claim 1, wherein: The upper middle part of the insert piece (200) is provided with a flow guiding channel (260), and the two straight column-shaped ports (230) are respectively in communication with the same side main flow channel (210) through the flow guiding channel (260).

8. The nozzle assembly for a windscreen washing system of claim 7, wherein: The flow guiding channel (260) gradually narrows along the liquid flow direction.

9. The nozzle assembly for a windscreen washing system of claim 7, wherein: The upper middle part of the insert piece (200) is provided with a guide groove (270), and the inner top wall of the clamping groove (110) is provided with a guide rib (111) corresponding to the guide groove (270).

10. The nozzle assembly for a windscreen washing system of claim 1, wherein: The front end side of the insert piece (200) is provided with a protrusion (400), and the slot opening of the clamping groove (110) is provided with a groove (112) corresponding to the protrusion (400).

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