A wiper with water jet

Abstract

The utility model relates to the technical field of rain wiper, and disclose a rain wiper with water spraying, including first casing, second casing and the scraper installed in the placing groove formed between both, the outside of first casing and second casing all is provided with at least one connecting block. The utility model connecting block slides into the installation groove along the arc surface, and the inclined plane automatically extrudes the guide surface of fixed block, drives the sliding block compression spring, when connecting block is in place completely, the continuous resilience of spring immediately pushes fixed block precision card into fixed groove and completes self -lock, this process completely avoids the repeated friction of screw pair, and the constant compression force provided by spring eliminates the pre -tightening force attenuation, ensures the lasting stable clamping state between first casing and second casing, and the design without thread cooperation not only realizes quick assembly and disassembly, but also eliminates the connection loosening and cooperation gap caused by thread wear, makes the product always keep reliable connection rigidity and operation stability in long -term use.

Description

Technical Field

[0001] This utility model relates to the field of windshield wiper technology, specifically a windshield wiper with a water spray function. Background Technology

[0002] Windshield wipers are devices installed on a car's windshield to remove rainwater, dust, frost, snow, and other contaminants to maintain the driver's clear vision.

[0003] Utility model patent application document with publication number "CN221366914U" discloses a windshield wiper with a water spray function, mainly composed of a first connecting housing, a second connecting housing, a snap-fit ​​block, and a connector. This technical solution controls the flow of water from the water pipe to the hose, causing the water to be sprayed onto the surface of the car window glass through the outlet pipe. Simultaneously, the plastic wiper blade oscillates back and forth, cleaning the surface of the car window glass, thus replacing manual water spraying and saving time and effort.

[0004] The windshield wipers with water spray function disclosed in the aforementioned document have the following defects: In this technical solution, the first connecting housing and the second connecting housing are connected by bolts. During the long-term use of the windshield wipers, the plastic wiper blade, as a wear part, needs to be replaced regularly. This means that the connecting bolts will be frequently disassembled and reassembled. Under the stress cycle of repeated tightening and loosening, the bolt threads will inevitably wear and fatigue, causing their preload to gradually decrease. This decrease in preload will directly cause insufficient clamping force between the two connecting housings, which will lead to loosening of the connection and gaps in the mating surfaces. This may not only cause abnormal vibration and noise during operation, but also affect the stability of the wiper blade movement. Utility Model Content

[0005] The purpose of this utility model is to provide a windshield wiper with a water spray function, which solves the problem that bolt threads inevitably wear and fatigue under the stress cycle of repeated tightening and loosening, resulting in a gradual decrease in their preload. This decrease in preload will directly cause insufficient clamping force between the two connecting shells, leading to loose connection and gaps on the mating surfaces.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a windshield wiper with a water spray function, comprising a first housing, a second housing, and a wiper blade installed in a groove formed between the two. At least one connecting block is provided on the outer side of both the first and second housings. A connecting seat spans the upper ends of the first and second housings, with mounting grooves at both ends for inserting the connecting blocks. Grooves are also provided at both ends of the connecting seat, and a fixing structure is provided within each groove. The fixing structure includes a slider slidably disposed within the groove. One end of the slider has a fixing block, one end of which penetrates the groove and extends into the interior of the mounting groove. A spring is fixedly installed at the other end of the slider, and the other end of the spring is fixedly installed on the inner wall of the groove.

[0007] Furthermore, a cover plate is fixedly installed on the outer side of the connecting seat, and an opening is provided on the cover plate. A lever is fixedly provided on the outer side of the slider, and the lever is located inside the opening.

[0008] Furthermore, a sealing plate is hinged to one side of the opening via a pin.

[0009] Furthermore, the end of the fixing block is formed with an inclined guide surface, and the corresponding position on the connecting block is formed with an arc-shaped surface that mates with the guide surface.

[0010] Furthermore, both ends of the scraper are provided with U-shaped drain pipes, and multiple water outlet pipes are provided on the outside of the U-shaped drain pipes. One end of the water outlet pipe passes through the corresponding first or second housing. The U-shaped drain pipe is connected to the water inlet pipe through a U-shaped connecting pipe.

[0011] Furthermore, a positioning frame is provided on the outer side of the first housing, and a positioning block that cooperates with the positioning frame is provided on the outer side of the second housing.

[0012] This utility model has the following beneficial effects: (1) The connecting block of this utility model slides into the mounting groove along the arc surface. Its inclined surface automatically squeezes the guide surface of the fixing block, driving the slider to compress the spring. When the connecting block is fully in place, the continuous rebound force of the spring immediately pushes the fixing block to accurately lock into the fixing groove to complete the self-locking. This process completely avoids the repeated friction of the threaded pair. The constant clamping force provided by the spring eliminates the pre-tightening force decay, ensuring a long-lasting and stable clamping state between the first housing and the second housing. The threadless design not only realizes quick disassembly and assembly, but also eliminates the loose connection and fit gap caused by thread wear, so that the product always maintains reliable connection rigidity and operational stability during long-term use.

[0013] (2) In this utility model, cleaning fluid is introduced into the inlet pipe and then diverted to the U-shaped connecting pipes on both sides, filling the entire U-shaped drain pipe. Under the pressure of the external cleaning fluid system, the cleaning fluid is sprayed out synchronously from multiple outlet pipes distributed at intervals along the outside of the U-shaped drain pipe, forming a uniform water curtain covering the entire working width of the scraper. This water curtain wets the glass surface before the scraping action of the scraper, so that the scraper can efficiently complete the cleaning of a large area of ​​glass in one go, effectively eliminating the cleaning blind spots existing in the traditional point spraying method, and significantly improving the cleaning efficiency and effect.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3 This is a cross-sectional view of the connector, connector block, and fixing structure; Figure 4 Exploded view of the connector and the fixed structure; Figure 5 This is a schematic diagram of the structure of a U-shaped drainage pipe, a U-shaped connecting pipe, and a water inlet pipe. The attached diagram lists the components represented by each number as follows: In the diagram: 1. First housing; 101. Positioning frame; 2. Second housing; 201. Positioning block; 3. Scraper; 4. Connecting block; 5. Connecting seat; 6. Fixing structure; 601. Slider; 602. Fixing block; 603. Spring; 604. Toggle block; 7. Cover plate; 8. Sealing plate; 9. U-shaped drain pipe; 901. Water outlet pipe; 10. U-shaped connecting pipe; 11. Water inlet pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-5 As shown, this utility model is a windshield wiper with water spray, including a first housing 1, a second housing 2, and a wiper blade 3 installed in a placement groove formed between the two. At least one connecting block 4 is provided on the outer side of both the first housing 1 and the second housing 2. A connecting seat 5 spans the upper end of the first housing 1 and the second housing 2, and has mounting grooves at both ends for the connecting blocks 4 to be inserted. The connecting seat 5 also has grooves at both ends, and a fixing structure 6 is provided in the groove. The fixing structure 6 includes a slider 601 that is slidably disposed in the groove. One end of the slider 601 is provided with a fixing block 602. One end of the fixing block 602 passes through the groove and extends into the interior of the mounting groove. The other end of the slider 601 is fixedly installed with a spring 603, and the other end of the spring 603 is fixedly installed on the inner wall of the groove. The end of the fixing block 602 is formed with an inclined guide surface, and the corresponding position on the connecting block 4 is formed with an arc-shaped surface that mates with the guide surface; The connecting block 4 slides into the mounting groove along the arc surface, and its inclined surface automatically presses against the guide surface of the fixing block 602, driving the slider 601 to compress the spring 603. When the connecting block 4 is fully in place, the continuous rebound force of the spring 603 immediately pushes the fixing block 602 to accurately lock into the fixing groove to complete the self-locking. This process completely avoids the repeated friction of the threaded pair. The constant clamping force provided by the spring 603 eliminates the preload decay and ensures a long-lasting and stable clamping state between the first housing 1 and the second housing 2. The threadless design not only realizes quick disassembly and assembly, but also eliminates the loosening of the connection and the gap caused by thread wear, so that the product always maintains reliable connection rigidity and operational stability during long-term use. A cover plate 7 is fixedly installed on the outside of the connecting seat 5. The cover plate 7 has an opening. A lever 604 is fixedly installed on the outside of the slider 601. The lever 604 is located inside the opening. A sealing plate 8 is hinged to one side of the opening via a pin; In its natural state, the sealing plate 8 covers the surface of the opening. At the same time, under normal conditions, the slider 601 is locked under the preload of the spring 603. At this time, the lever 604 fixed on it continuously squeezes the sealing plate 8 inside the opening, making it stick tightly to the surface of the opening and preventing it from being accidentally opened, thus forming a stable normally closed seal. When disassembly is required, the sealing plate 8 must be opened first before the lever 604 can be accessed and the slider 601 can be operated to unlock. It achieves a forced seal of the opening through the lock, effectively preventing the sealing plate 8 from being accidentally opened due to vibration or negligence, and ensuring that rainwater, dust and other pollutants are always reliably isolated from the outside of the connecting seat 5, so that it has long-term working reliability and durability in harsh environments. Both ends of the scraper 3 are provided with U-shaped drain pipes 9. Multiple water outlet pipes 901 are provided on the outside of the U-shaped drain pipes 9. One end of the water outlet pipe 901 passes through the corresponding first housing 1 or second housing 2. The U-shaped drain pipe 9 is connected to the water inlet pipe 11 through the U-shaped connecting pipe 10. When the windshield needs cleaning, pressurized cleaning fluid from the external cleaning fluid system is input through the inlet pipe 11, then diverted to the U-shaped connecting pipes 10 on both sides, filling the entire U-shaped drain pipe 9. Under system pressure, the cleaning fluid is simultaneously sprayed out from multiple outlet pipes 901 spaced apart along the outside of the U-shaped drain pipe 9, forming a uniform water curtain covering the entire working width of the scraper 3. This water curtain wets the glass surface before the scraper 3's wiping action, enabling the scraper 3 to efficiently clean a large area of ​​glass in one go, effectively eliminating the cleaning blind spots present in traditional point-spraying methods, and significantly improving cleaning efficiency and effect. A positioning frame 101 is provided on the outer side of the first housing 1, and a positioning block 201 that cooperates with the positioning frame 101 is provided on the outer side of the second housing 2.

[0019] When in use, the external cleaning fluid is delivered through the inlet pipe 11 and the U-shaped connecting pipe 10 to the U-shaped drain pipes 9 at both ends of the wiper blade 3, and finally sprayed evenly from multiple outlet pipes 901, forming a water curtain covering the entire width of the wiper on the glass surface. Then, the entire wiper swings under the drive mechanism, and the beveled edge of the wiper blade 3 can efficiently remove the water mixed with dirt in one go, achieving large-area cleaning. When it is necessary to replace the worn scraper 3, the operator first opens the sealing plate 8 hinged to the cover plate 7, overcomes the pressure of the spring 603, and pushes the slider 601 inward through the lever 604, so that the fixing block 602 is removed from the fixing groove of the connecting block 4 to release the lock. At this time, the first housing 1 and the second housing 2 can be separated, so that the old scraper 3 can be taken out directly and a new scraper 3 can be inserted. During reassembly, simply align the positioning block 201 on the second housing 2 with the positioning frame 101 on the first housing 1 and insert it. Then, place the connecting seat 5 on the upper end of the first housing 1 and the second housing 2 and push it downward. Under the pressure of the inclined plane, the connecting block 4 will automatically compress the slider 601 until it is fully in place. At this time, the rebound force of the spring 603 will immediately push the fixing block 602 to accurately engage in the fixing groove to complete the self-locking.

[0020] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A windshield wiper with water spray function, comprising a first housing (1), a second housing (2), and a wiper blade (3) installed in a groove formed between the two, characterized in that: At least one connecting block (4) is provided on the outer side of both the first housing (1) and the second housing (2); The connecting seat (5) spans the upper ends of the first housing (1) and the second housing (2), and has mounting grooves at both ends for the connecting block (4) to be inserted. The connecting seat (5) is also provided with grooves at both ends, and a fixing structure (6) is provided in the grooves. The fixing structure (6) includes a slider (601) slidably disposed in the groove. One end of the slider (601) is provided with a fixing block (602). One end of the fixing block (602) passes through the groove and extends into the interior of the mounting groove. The other end of the slider (601) is fixedly installed with a spring (603). The other end of the spring (603) is fixedly installed on the inner wall of the groove.

2. A windshield wiper with water spray function according to claim 1, characterized in that: A cover plate (7) is fixedly installed on the outside of the connecting seat (5). An opening is provided on the cover plate (7). A lever (604) is fixedly provided on the outside of the slider (601). The lever (604) is located inside the opening.

3. A windshield wiper with water spray function according to claim 2, characterized in that: A sealing plate (8) is hinged to one side of the opening via a pin.

4. A windshield wiper with water spray function according to claim 1, characterized in that: The fixed block (602) has an inclined guide surface at its end, and the connecting block (4) has an arc-shaped surface that cooperates with the guide surface at the corresponding position.

5. A windshield wiper with water spray function according to claim 1, characterized in that: Both ends of the scraper (3) are provided with U-shaped drain pipes (9), and multiple water outlet pipes (901) are provided on the outside of the U-shaped drain pipes (9). One end of the water outlet pipe (901) passes through the corresponding first shell (1) or second shell (2). The U-shaped drain pipe (9) is connected to the inlet pipe (11) through the U-shaped connecting pipe (10).

6. A windshield wiper with water spray function according to claim 1, characterized in that: The first housing (1) is provided with a positioning frame (101) on its outer side, and the second housing (2) is provided with a positioning block (201) that cooperates with the positioning frame (101) on its outer side.

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