Anti-backflow fan-shaped water spraying assembly and windscreen wiper

Abstract

The utility model relates to an anti-backflow fan-shaped water spraying assembly and a windscreen wiper. Belongs to the technical field of windscreen wipers and comprises a water spraying device connected with a hook plate, the water spraying device comprises a water spraying body, an insertion piece and a one-way valve, a clamping groove used in cooperation with the insertion piece is formed in one side of the water spraying body, and a water inlet hole is formed in the water spraying body; a central channel and at least two water outlets are formed in the insertion sheet; the central channel is communicated with the water inlet hole; the one-way valve is mounted in the central channel and used for blocking the water inlet hole; and a water channel is communicated between the plurality of water outlets and the central channel. According to the utility model, the waterway design of the water spraying main body is optimized, each mold stripping direction of the mold is reduced, the mold is simplified, the product cost is reduced, the design of the water spraying main body is optimized, a simpler one-way valve structure is additionally arranged, water in the water pipe is prevented from falling down, water is kept in the water pipe, and the water spraying and quick cleaning can be started; the water spraying assembly has the good cost advantage.

Description

Technical Field

[0001] This utility model relates to the field of windshield wiper technology, specifically to an anti-backflow fan-shaped water spray assembly and a windshield wiper. Background Technology

[0002] Currently, windshield washer fluid wipers on the market have complex structures and relatively high costs. Furthermore, the water spray is mostly in the form of a jet, which has a limited spray range and often cannot fully cover the brushing area, requiring multiple jets to achieve coverage. The most common type of windshield washer fluid wiper on the market uses a metal ball head device. The main washer assembly has at least two machined ball heads assembled within the washer fluid unit. Machined ball heads are expensive, and assembly and adjustment of the spray angle are also costly. Additionally, most washer fluid units incorporate one-way valves, which are complex and costly. The following are some problems with windshield washer fluid wipers on the market:

[0003] 1. The water spray assembly has a complex structure, including small parts such as one-way valves, which makes assembly difficult and requires additional welding or gluing, resulting in a high cost for the entire water spray assembly.

[0004] 2. Because most of the water outlets on the market are made of metal ball heads, the spray angle needs to be adjusted manually, which is difficult and has high production costs.

[0005] 3. High-end cars have higher requirements for water spray systems, which need to have a one-way valve to prevent water backflow and to ensure that the water can be sprayed onto the glass quickly. Currently, the structures with one-way valves on the market are relatively complex and costly. Utility Model Content

[0006] This utility model aims to solve the above-mentioned technical problems by providing an anti-backflow fan-shaped water spray assembly and a windshield wiper.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0008] In a first aspect, the present invention provides a backflow prevention fan-shaped water spray assembly for a windshield wiper, including a water spray assembly connected to a hook plate. The water spray assembly includes a water spray body, a blade, and a one-way valve. A slot for cooperating with the blade is provided on one side of the water spray body, and a water inlet is installed on the water spray body.

[0009] The insert has a central channel and at least two outlets;

[0010] The central channel is connected to the water inlet, and a one-way valve is installed in the central channel to block the water inlet;

[0011] A water channel connects the multiple water outlets and the central channel.

[0012] In the preferred embodiment of the aforementioned anti-backflow fan-shaped water spray assembly, the plurality of water outlets are on the side facing the wiper direction.

[0013] In the preferred technical solution of the above-mentioned anti-backflow fan-shaped water spray assembly, when there are three sets of water outlets, the water spray directions of the water outlets are respectively the front, rear and middle sections of the wiper.

[0014] In the preferred embodiment of the aforementioned anti-backflow fan-shaped water spray assembly, the width of the plurality of water outlets gradually increases, and the water channel connecting the plurality of water outlets becomes increasingly narrow.

[0015] In the preferred embodiment of the above-mentioned anti-backflow fan-shaped water spray assembly, the insert and the slot are interference fit structures and can ensure that there is no water leakage after assembly.

[0016] In the preferred embodiment of the above-mentioned anti-backflow fan-shaped water spray assembly, a water channel is provided on the main body of the water spray, and the central channel and the water inlet are connected by the water channel.

[0017] In the preferred embodiment of the aforementioned anti-backflow fan-shaped water spray assembly, the one-way valve includes a plug that can move within the central channel and block the water passage. The lower end of the plug is connected to an elastic body, and the central channel is fixedly connected to a guide post for guiding the direction of the elastic body.

[0018] In a first aspect, the present invention also provides a windshield wiper, which includes the aforementioned anti-backflow fan-shaped water spray wiper assembly.

[0019] With the above structure, this utility model has the following advantages:

[0020] This invention optimizes the water channel design of the main water spray unit, reduces the number of different ejection directions of the mold, simplifies the mold, and reduces product costs. The optimized design of the main water spray unit uses a plug-in structure, making assembly simpler and meeting the requirements of the main water spray unit. This invention also adds a simpler one-way valve structure to prevent water from dripping in the water pipe and to keep water in the water pipe, enabling water to spray immediately upon startup for rapid cleaning. The water spray component of this invention has a good cost advantage.

[0021] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an exploded view of this utility model;

[0024] Figure 2 This is a cross-sectional view of the water spray assembly of this utility model;

[0025] Figure 3 This is a schematic diagram of the waterway channel of this utility model;

[0026] Figure 4 This is a schematic diagram of the water spraying component of this utility model.

[0027] As shown in the figure: 1. Hook plate; 2. Water spray assembly; 201. Water spray body; 202. Insert plate; 203. Slot; 204. Central channel; 3. Water inlet; 4. Water outlet; 5. Water channel; 6. Water passage; 7. One-way valve; 701. Plug; 702. Elastomer; 703. Guide post. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] The present invention will now be described in further detail in conjunction with the full text.

[0031] Combined with appendix Figures 1-3A backflow prevention fan-shaped water spray assembly includes a water spray assembly 2 connected to a hook plate 1. The water spray assembly 2 includes a water spray body 201, a insert 202 and a one-way valve. A slot 203 for use with the insert 202 is opened on one side of the water spray body 201. A water inlet 3 is installed on the water spray body 201. A central channel 204 and at least two water outlets 4 are opened on the insert 202.

[0032] In specific implementation of this utility model, such as Figure 1 and Figure 4 As shown. Multiple water outlets 4 face the side facing the wiper direction. When there are three sets of water outlets 4, the water spraying directions of the water outlets 4 are the front, rear, and middle sections of the wiper, respectively. When there are three sets of water outlets 4, the water spraying directions of the water outlets 4 are the front, rear, and middle sections of the wiper, respectively. The insert 202 has at least two water outlets 4, which spray water in different directions. The optimal spraying direction for one is towards the front half of the wiper, and it is on the side facing the wiper direction. The optimal spraying direction for another is towards the rear half of the wiper, and it is on the side facing the wiper direction. The additional spraying direction is towards the middle of the wiper, and it is on the side facing the wiper direction. This water outlet 4 is long and narrow, and the sprayed water forms a diffused water area.

[0033] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown. The central channel 204 is connected to the water inlet 3 and a one-way valve 7 is installed in the central channel 204 to block the water inlet 3; multiple water outlets 4 are connected to the central channel 204 via a water passage 5.

[0034] The width of the multiple water outlets 4 gradually increases, while the water channel 5 connecting the multiple water outlets 4 becomes narrower and narrower. This creates a water pressurization effect, so the water can be fully filled when passing through the water outlets 4, and thus spray out in a fan-shaped water jet pattern after being pressurized.

[0035] A water channel 6 is opened on the main body of the water spray 201, and the central channel 204 and the water inlet 3 are connected through the water channel 6.

[0036] The one-way valve 7 includes a plug 701 that can move within the central channel 204 and block the water passage 6. The lower end of the plug 701 is connected to an elastomer 702. The central channel 204 is fixedly connected to a guide post 703 for guiding the direction of the elastomer 702.

[0037] A guide post 703 is installed in the space of the central channel 204, which cooperates with the elastic body 702 to guide the elastic body 702. The elastic body 702 is connected to the plug 701. After assembly, the elastic body 702 is in a compressed and stretched state. The elastic body 702 exerts a compressive force on the plug 701, and the plug 701 blocks the water passage 6 with the water inlet hole 3, so that water cannot flow out and water will not flow back. When the water pump is turned on, under the action of high water pressure, the water pressure in the water inlet hole 3 is greater than the elastic force of the elastic body 702. The plug 701 moves away from the water passage 6, the one-way valve opens, and water is sprayed normally.

[0038] Specifically, a guide groove is provided at the lower end of the insert 202, and a protrusion is installed in the slot 203 of the water spray body 201 to cooperate with the guide groove. The insert 202 is installed in the slot 203 through the guide groove and the protrusion. The guide groove and the protrusion play the role of lateral limiting and guiding.

[0039] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown. A slot 203 is provided on one side of the water spray body 201 to cooperate with the insert 202. The insert 202 is inserted into the slot 203 to form a water spray assembly. The slot 203 and the insert 202 are slightly interference-fitted to ensure that there is no water leakage after assembly. The central channel 204, water outlet 4, water passage 5 and water channel 6 provided in the insert 202 form a closed water channel after assembly, and can be connected to the water inlet 3.

[0040] Specifically, a guide groove is provided at the lower end of the insert 202, and a protrusion is installed in the slot 203 of the water spray body 201 to cooperate with the guide groove. The insert 202 is installed in the slot 203 through the guide groove and the protrusion. The guide groove and the protrusion play the role of lateral limiting and guiding.

[0041] In specific implementation of this utility model, such as Figure 4 As shown, a windshield wiper includes a water spray assembly, a wiper blade, and a wiper arm. Its function is to remove foreign objects and rainwater from the glass. The wiper blade is mounted on the wiper arm, and the wiper arm drives the wiper to brush along the glass in a vertical direction to remove water and stains. The wiper blade has a bracket for fixing a spring clip and an accessory that can rotate around the bracket. The end of the spring clip is connected to a snap-fit. A hook plate 1 is provided on the wiper arm, and a wiper bar is connected to the hook plate 1. The wiper blade is mounted to the hook plate 1 on the wiper arm via the accessory. The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An anti-backflow fan-shaped water spray assembly, characterized in that, The water spraying assembly (2) comprises a water spraying body (201), an insert piece (202) and a one-way valve (7), one side of the water spraying body (201) is provided with a clamping groove (203) for the insert piece (202), and a water inlet hole (3) is installed on the water spraying body (201); The insert piece (202) is provided with a central passage (204) and at least two water outlets (4); The central passage (204) is communicated with the water inlet hole (3), and the one-way valve (7) is installed in the central passage (204) to block the water inlet hole (3); A plurality of water channels (5) are communicated between the central passage (204) and the water outlets (4).

2. The anti-backflow fan-shaped water spray assembly of claim 1, wherein: The plurality of water outlets (4) are arranged on the side facing the direction of the windshield wiper.

3. A backflow resistant fan-spray water distribution assembly according to claim 2, wherein: When the water outlets (4) are three groups, the water spraying directions of the water outlets (4) are respectively the front, rear and middle sections of the windshield wiper.

4. The anti -backflow fan -shaped water spray assembly according to claim 1, characterized in that: The widths of the plurality of water outlets (4) gradually increase, and the water channels (5) are communicated with the plurality of water outlets (4) arranged in a gradually narrower manner.

5. The anti -backflow fan -shaped water spray assembly according to claim 1, wherein: The insert piece (202) and the clamping groove (203) are in an interference fit structure, and can ensure that there is no water leakage after assembly.

6. The anti -backflow fan -shaped water spray assembly according to claim 1, wherein: The water spraying body (201) is provided with a water channel (6), and the central passage (204) and the water inlet hole (3) are communicated through the water channel (6).

7. The anti -backflow fan -shaped water spray assembly according to claim 1, wherein: The one-way valve (7) comprises a plug (701) which can move in the central passage (204) and block the water channel (6), the lower end of the plug (701) is connected with an elastic body (702), and the central passage (204) is fixedly connected with a guide column (703) for guiding the direction of the elastic body (702).

8. A wiper, characterized by The windshield wiper comprises the anti-backflow fan-shaped water spraying assembly according to any one of claims 1-7.

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