High pressure fluid nozzle connection

Abstract

The utility model belongs to the automobile wiper nozzle technical field, concretely relates to high pressure fluid nozzle joint, include: the spray pipe, the inside of spray pipe has the water passageway of internal diameter consistency, the middle part of the outer surface of spray pipe is provided with the locating section, the installation part and the joint groove, the both ends of spray pipe are provided with the water inlet and the water outlet respectively, first whirlwind piece is provided in the water inlet, first whirlwind piece has the first branch hole of making the cleaner liquid flowing into the water inlet accelerated to flow out to separate out the air bubble, second whirlwind piece is provided in the water outlet, second whirlwind piece has the second branch hole of making the air bubble microfine and making the cleaner liquid divide into a plurality of branches by shearing force, the utility model discloses the microbubble generation structure and double whirlwind piece design of setting up in the spray pipe interior make the cleaner liquid accelerated flow and produce microfine air bubble, have the advantage that promote washing liquid utilization rate, strengthen the cleaning effect.

Description

Technical Field

[0001] This utility model belongs to the field of automotive wiper nozzle technology, specifically relating to a high-pressure fluid nozzle connector. Background Technology

[0002] In daily car use, the cleanliness of the windshield directly impacts driving safety. Especially in adverse weather conditions, such as sandstorms, rain, and snow, a large amount of dirt quickly accumulates on the glass surface. Traditional wiper nozzles use a simple straight-through structure, spraying washer fluid in a jet shape, which has significant technical drawbacks: First, the excessive water flow force easily causes washer fluid splashing and waste; second, the insufficient air bubble content in the water flow results in a limited contact area between the liquid and the glass surface, making it difficult to form a uniform wetting layer; third, existing nozzles lack an effective fluid control structure, failing to achieve precise and uniform bubble distribution. These problems lead to low washer fluid utilization and unsatisfactory cleaning results, often requiring repeated sprays to achieve basic cleaning requirements, increasing washer fluid consumption and affecting the immediate restoration of the driver's visibility. Furthermore, the existing nozzle connector installation structure also suffers from inaccurate positioning and poor sealing, easily leading to fluid leakage or spray angle deviation. Utility Model Content

[0003] The purpose of this application is to provide a high-pressure fluid nozzle connector that has the advantages of improving cleaning efficiency through microbubbles, reducing liquid splashing, and enhancing sealing.

[0004] This application provides a high-pressure fluid nozzle connector, installed inside a wiper nozzle, having a microbubble generating structure that causes the cleaning agent to form a large number of microbubbles, comprising: a nozzle, the nozzle having a water passage with a uniform inner diameter inside, a positioning section provided in the middle of the outer surface of the nozzle, and mounting parts provided at both ends of the positioning section, with a snap-fit ​​groove formed between the mounting parts and the positioning section; water inlet and water outlet respectively provided at both ends of the nozzle, the inner diameter of the water inlet and water outlet being larger than the inner diameter of the water passage, forming a positioning step; a first hurricane vane, disposed on the positioning step near the water inlet, the first hurricane vane having a first branch hole that accelerates the flow of cleaning agent liquid flowing into the water inlet to precipitate bubbles; and a second hurricane vane, disposed on the positioning step near the water outlet, the second hurricane vane having a second branch hole that uses shearing force to micronize the bubbles and divide the cleaning agent liquid into multiple branches.

[0005] In one embodiment of this utility model, the depth of the water inlet is greater than the thickness of the first hurricane blade, and the depth of the water spray nozzle is greater than the thickness of the second hurricane blade.

[0006] In one embodiment of this utility model, the first hurricane blade and the second hurricane blade are installed in the nozzle in an interference fit manner.

[0007] In one embodiment of this utility model, the diameter of the water inlet and the water spray nozzle is 3-5mm.

[0008] In one embodiment of this utility model, both the first hurricane blade and the second hurricane blade are provided with a guide cone surface, and the minimum outer diameter of the guide cone surface is greater than the diameter of the water inlet or the water spray nozzle.

[0009] In one embodiment of this utility model, the first branch hole is a tapered hole that gradually narrows along the direction of water flow, the minimum diameter of the tapered hole is 1 mm, and the first branch hole is located at the center of the first hurricane blade. Alternatively, the first branch hole may be a plurality of through holes surrounding the center of the first hurricane blade, and the diameter of the first branch hole may be 0.5-1 mm.

[0010] In one embodiment of this utility model, the second branch hole is a plurality of through holes surrounding the center of the second hurricane plate, and the diameter of the second branch hole is 0.5-1mm.

[0011] In one embodiment of this utility model, the axial length of the mounting part is 4-6mm, and the axial width of the snap-fit ​​groove is greater than the axial length of the mounting part.

[0012] In one embodiment of this utility model, the mounting part is configured as a tapered shape with a gradually decreasing end size.

[0013] In one embodiment of this utility model, the outer diameter of the mounting part is smaller than the outer diameter of the positioning section.

[0014] The high-pressure fluid nozzle connector provided by this utility model can achieve the following technical effects: This application provides a high-pressure fluid nozzle connector that uses a microbubble generation structure and a double hurricane blade design inside the nozzle to accelerate the flow of cleaning liquid and generate microbubbles. At the same time, the snap-fit ​​groove and the conical mounting part ensure precise positioning and sealing, which has the advantages of improving the utilization rate of washing liquid, enhancing the cleaning effect, and preventing liquid leakage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram showing the axial view structure of this utility model; Figure 2 A side view of the present invention. Figure 3 A schematic diagram showing the structure of the first hurricane blade and the second hurricane blade of this utility model having the same structure; Figure 4 This is a schematic diagram showing the structure of the present invention when the first branch hole is centered. Figure 5 This is a schematic diagram of the structure of the first hurricane blade according to one embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the second hurricane sheet according to one embodiment of the present invention.

[0017] The symbols in the attached image are explained as follows: 1- Nozzle; 11- Water passage; 12- Positioning section; 13- Mounting part; 14- Snap-fit ​​groove; 2- Water inlet; 3- Water nozzle; 4- First hurricane vane; 41- First branch hole; 5- Second hurricane vane; 51- Second branch hole; 6- Guide cone surface. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figures 1-6 This application provides a high-pressure fluid nozzle connector, installed inside a wiper nozzle, having a microbubble generating structure that causes the cleaning agent to form a large number of microbubbles, including: a nozzle 1, the nozzle 1 having a water passage 11 with a uniform inner diameter inside, a positioning section 12 provided in the middle of the outer surface of the nozzle 1, and mounting portions 13 provided at both ends of the positioning section 12, with a snap-fit ​​groove 14 formed between the mounting portion 13 and the positioning section 12; water inlet 2 and water nozzle 3 respectively provided at both ends of the nozzle 1, the inner diameter of the water inlet 2 and the water nozzle 3 being larger than the inner diameter of the water passage 11, forming a positioning step; a first hurricane blade 4, provided on the positioning step near the water inlet 2, the first hurricane blade 4 having a first branch hole 41 that accelerates the flow of cleaning agent liquid flowing into the water inlet 2 to precipitate bubbles; and a second hurricane blade 5, provided on the positioning step near the water nozzle 3, the second hurricane blade 5 having a second branch hole 51 that micronizes the bubbles and divides the cleaning agent liquid into multiple branches by shearing force.

[0020] Among them, nozzle 1 refers to the tubular structure connecting the water inlet and the water spray channel. The water passage 11 with the same inner diameter can maintain the stability of the water flow. The positioning step is used to fix the hurricane vane. The first hurricane vane 4 refers to the sheet structure with branch holes. It accelerates the water flow by reducing the cross-sectional area of ​​the flow channel and promotes the precipitation of bubbles by using pressure drop. The second hurricane vane 5 refers to the sheet structure with multiple through holes. It generates a shearing effect on the bubbles through the edge of the channel, which further reduces the size of the bubbles. The snap-fit ​​groove 14 refers to the recessed structure formed on the outer surface of nozzle 1, which is used to achieve quick assembly with the nozzle body.

[0021] Specifically, when the washing liquid enters the nozzle 1 from the inlet 2, it first accelerates its flow through the branch hole of the first hurricane vane 4, and the internal pressure of the liquid decreases, causing dissolved gas to precipitate and form initial bubbles. After the water flow continues to pass through the equal-diameter water passage 11 and remains stable, when it reaches the branch hole of the second hurricane vane 5, the high-speed flowing liquid and the hole wall generate a shearing effect, cutting the initial bubbles into microbubbles. Finally, the liquid containing microbubbles is sprayed out from the nozzle 3, forming a uniformly covered mist-like water flow.

[0022] Compared with existing technologies, existing nozzles rely on a single channel to spray liquid, which cannot form effective bubbles. This solution uses two-stage hurricane blades to achieve bubble generation and refinement respectively. By utilizing the synergistic effect of accelerated flow and shearing action, the bubbles are smaller and more evenly distributed. The positioning stepped structure ensures that the hurricane blades are installed in a precise position, avoiding water flow turbulence from affecting the bubble generation effect.

[0023] Through the above technical solution, this application enables the washing liquid to form a large number of microbubbles before being sprayed, thereby improving the uniformity of liquid coverage on the glass surface; the microbubbles can enhance the contact area between the liquid and the stains, thereby improving cleaning efficiency; at the same time, the bubble refinement process can reduce the liquid spray speed, reduce liquid splashing loss, and improve the utilization rate of the washing liquid.

[0024] In one embodiment of the present invention, the depth of the water inlet 2 is greater than the thickness of the first hurricane blade 4, and the depth of the water nozzle 3 is greater than the thickness of the second hurricane blade 5.

[0025] In one embodiment of the present invention, the first hurricane blade 4 and the second hurricane blade 5 are installed in the nozzle 1 in an interference fit manner.

[0026] Specifically, at the positioning steps set at both ends of the nozzle 1, the first hurricane blade 4 and the second hurricane blade 5 are pressed into the corresponding installation positions of the water inlet 2 and the water nozzle 3 by interference fit; when the cleaning agent liquid flows through the nozzle 1, the radial pressure generated by the interference fit makes the hurricane blade form a sealed contact with the inner wall of the nozzle 1, preventing the liquid from leaking from the assembly gap; at the same time, the friction force generated by mechanical interference can prevent the hurricane blade from axial displacement under the impact of water flow, ensuring that the branch hole structure is always in the predetermined working position.

[0027] Through the above technical solution, this application achieves stable fixation of the hurricane sheet under high-pressure water flow environment, prevents the reduction of microbubble generation efficiency caused by component displacement, and enables the cleaning agent to be fully converted into a uniformly distributed microbubble flow.

[0028] In one embodiment of this utility model, the diameters of the water inlet 2 and the water spray nozzle 3 are 3-5 mm.

[0029] Specifically, when the diameter of the inlet 2 is controlled within the range of 3-5mm, the cleaning agent can enter the water passage 11 at an appropriate flow rate, avoiding insufficient pressure due to excessive diameter or increased flow resistance due to excessively small diameter; the diameter of the spray nozzle 3 is simultaneously set to 3-5mm, which can maintain a stable shearing effect when the water flows through the second hurricane blade 5 before being sprayed out, thereby promoting the micronization of bubbles.

[0030] Through the above technical solution, this application can optimize the flow state of the cleaning agent in the nozzle, enhance the stability of bubble generation, and make the sprayed cleaning agent cover the glass surface more evenly, while avoiding the risk of clogging caused by too small a diameter or the problem of insufficient atomization caused by too large a diameter.

[0031] In one embodiment of this utility model, both the first hurricane blade 4 and the second hurricane blade 5 are provided with a guide cone surface 6, and the minimum outer diameter of the guide cone surface 6 is greater than the diameter of the water inlet 2 or the water spray nozzle 3.

[0032] Among them, the guide cone surface 6 refers to the conical transition structure set on the edge of the hurricane vane. This structure plays a guiding role during installation, so that the hurricane vane and the nozzle 1 form a self-centering effect. The minimum outer diameter refers to the minimum diameter of the end of the guide cone surface 6, which is obtained by measuring the cross-section of the end of the cone surface. This dimension is designed to be larger than the inner diameter of the inlet 2 or the nozzle 3, so that the cone surface will preferentially contact the nozzle when it is inserted into the nozzle 1, and achieve an interference fit through elastic deformation. Specifically, during the assembly process, the guide cone 6 first contacts the edge of the inlet 2 or nozzle 3 of the nozzle 1; as the hurricane vane is pressed into the nozzle 1, the cone surface undergoes radial compression deformation until the hurricane vane is fully embedded in the positioning step; the dimensional difference between the cone surface and the outer circumference of the hurricane vane and the nozzle forms an interference fit, ensuring that the hurricane vane does not undergo axial displacement under the impact of high-speed water flow; the guiding effect of the cone surface keeps the two hurricane vanes coaxial, avoiding misalignment of the branch holes that could cause water flow turbulence; the diameter control at the end of the cone surface can prevent burrs or debris from being generated during installation, ensuring that the water passage 11 is unobstructed.

[0033] Through the above technical solution, this application realizes rapid and non-destructive assembly of the hurricane blade, ensures precise alignment of the branch hole axis with the water flow direction, and reduces the requirements of the assembly process on operational precision, which is conducive to improving production efficiency and product consistency.

[0034] In one embodiment of the present invention, the first branch hole 41 is a tapered hole that gradually narrows along the direction of water flow, the minimum diameter of the tapered hole is 1 mm, and the first branch hole 41 is located at the center of the first hurricane blade 4. Alternatively, the first branch hole 41 may be a plurality of through holes surrounding the center of the first hurricane blade 4, and the diameter of the first branch hole 41 may be 0.5-1 mm.

[0035] Among them, the tapered hole that gradually narrows along the direction of water flow refers to a structure in which the cross-sectional area of ​​the channel decreases linearly with the direction of water flow. Specifically, it can be implemented by using conical or pyramidal channels, which generate a negative pressure area by accelerating the flow of fluid in the contraction section; the multiple through holes around the center refer to a group of channels distributed in a ring array around the central axis. Specifically, it can be implemented by using circular or elliptical holes evenly distributed around the circumference, which generate a vortex effect by diverting the liquid.

[0036] Specifically, when a conical orifice structure is used, the water flow velocity increases as it passes through the gradually narrowing orifice. According to Bernoulli's principle, a low-pressure zone is formed at the end of the orifice, which promotes the precipitation of gas dissolved in the detergent to form initial bubbles. When a multi-circular through-hole structure is used, the water flow is divided into multiple streams. These streams collide with each other at the orifice outlet to form turbulence, which enhances the internal shearing of the liquid and promotes the separation of gas from the solution. Both structures induce bubble generation by changing the flow state of the fluid. The conical orifice structure focuses on accelerating gas precipitation, while the porous structure focuses on dispersing gas production. The implementation method can be selected according to different working conditions.

[0037] Through the above technical solution, this application can significantly increase the amount of bubbles generated during the spraying of cleaning agents, so that the liquid and air are fully mixed to form a cluster of microbubbles; when the cleaning agent containing a large number of bubbles impacts the glass surface, the mechanical action generated by the bursting of bubbles can enhance the removal effect of stains, and at the same time, the cluster of bubbles covers the glass surface to form a uniform cleaning layer, thereby improving the utilization rate of the cleaning liquid.

[0038] In one embodiment of the present invention, the second branch hole 51 is a plurality of through holes surrounding the center of the second hurricane plate 5, and the diameter of the second branch hole 51 is 0.5-1mm.

[0039] In one embodiment of the present invention, the axial length of the mounting part 13 is 4-6 mm, and the axial width of the snap-fit ​​groove 14 is greater than the axial length of the mounting part 13.

[0040] Specifically, the mounting part 13 is constructed as a columnar structure with a defined axial length, which is controlled within the range of 4-6 mm, for example, 5 mm. This ensures the contact area with the external pipe fittings while avoiding assembly interference due to excessive length. The width of the snap-fit ​​groove 14 is set to be greater than the length of the mounting part 13. For example, when the length of the mounting part 13 is 5 mm, the width of the snap-fit ​​groove 14 can be 6 mm. This allows the snap-fit ​​component to be fully embedded in the groove when the nozzle 1 is assembled with the outer housing, generating a stable radial clamping force through elastic deformation.

[0041] Through the above technical solution, this application effectively solves the problem of loose connection of nozzle connector caused by vibration during vehicle operation. The matching design of the width of the snap groove 14 and the length of the mounting part 13 significantly improves the impact resistance of the connector.

[0042] In one embodiment of the present invention, the mounting portion 13 is configured as a tapered shape with a gradually decreasing end size.

[0043] Specifically, when the end of the mounting part 13 is set to be conical, during the process of inserting the nozzle 1 into the inner cavity of the nozzle, the conical structure can guide the mounting part 13 to gradually fit against the inner wall of the nozzle. As the insertion depth increases, the contact area between the conical end and the inner wall gradually expands, and finally a stable radial pressure is formed at the predetermined position. The nozzle 1 is fixed by forming a snap-fit ​​structure between the end of the mounting part 13 and the inner cavity of the nozzle.

[0044] In one embodiment of the present invention, the outer diameter of the mounting portion 13 is smaller than the outer diameter of the positioning segment 12.

[0045] Through the above technical solution, this application solves the problem of unstable engagement between the traditional nozzle connector mounting part 13 and the housing. By using the limiting structure formed by the difference in outer diameter, it ensures that the interference fit between the mounting part 13 and the housing reaches the preset compression amount, avoiding the connector from falling off due to vibration or water flow impact, thereby improving the working stability of the wiper nozzle.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-pressure fluid nozzle connector, installed inside a windshield wiper nozzle, characterized in that, It has a microbubble-generating structure that enables the cleaning agent to form a large number of microbubbles, including: The nozzle has a water passage with a uniform inner diameter inside. A positioning section is provided in the middle of the outer surface of the nozzle. Both ends of the positioning section are provided with mounting parts. A snap-fit ​​groove is formed between the mounting parts and the positioning section. The nozzle is provided with an inlet and a spray nozzle at both ends, and the inner diameter of the inlet and the spray nozzle is larger than the inner diameter of the water passage, forming a positioning step. A first hurricane blade is disposed on a positioning step near the water inlet. The first hurricane blade has a first branch hole that accelerates the flow of detergent liquid flowing into the water inlet to precipitate bubbles. The second hurricane blade is disposed on a positioning step near the spray nozzle. The second hurricane blade has a second branch hole that micronizes the bubbles and divides the cleaning agent liquid into multiple branches by shearing force.

2. The high-pressure fluid nozzle connector as described in claim 1, characterized in that, The depth of the water inlet is greater than the thickness of the first hurricane blade, and the depth of the water nozzle is greater than the thickness of the second hurricane blade.

3. The high-pressure fluid nozzle connector as described in claim 1, characterized in that, The first hurricane vane and the second hurricane vane are installed inside the nozzle in an interference fit manner.

4. The high-pressure fluid nozzle connector as described in claim 3, characterized in that, The diameter of the water inlet and the water nozzle is 3-5mm.

5. The high-pressure fluid nozzle connector as described in claim 4, characterized in that, Both the first hurricane blade and the second hurricane blade are provided with a guide cone surface, and the minimum outer diameter of the guide cone surface is greater than the diameter of the water inlet or the water nozzle.

6. The high-pressure fluid nozzle connector as described in claim 1, characterized in that, The first branch hole is a tapered hole that gradually narrows along the direction of water flow. The minimum diameter of the tapered hole is 1 mm, and the first branch hole is located at the center of the first hurricane blade. Alternatively, the first branch hole may be a plurality of through holes surrounding the center of the first hurricane blade, and the diameter of the first branch hole may be 0.5-1 mm.

7. The high-pressure fluid nozzle connector as described in claim 1, characterized in that, The second branch hole consists of multiple through holes surrounding the center of the second hurricane blade, and the diameter of the second branch hole is 0.5-1mm.

8. The high-pressure fluid nozzle connector as described in claim 1, characterized in that, The axial length of the mounting part is 4-6mm, and the axial width of the snap-fit ​​groove is greater than the axial length of the mounting part.

9. The high-pressure fluid nozzle connector as described in claim 1, characterized in that, The mounting section is configured as a tapered shape with a gradually decreasing end size.

10. The high-pressure fluid nozzle connector as described in claim 9, characterized in that, The outer diameter of the mounting part is smaller than the outer diameter of the positioning section.

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