Car washer nozzle

Abstract

A vehicle washing nozzle comprises a nozzle body, a nozzle ball and a nozzle core, wherein the nozzle core is fixed in the nozzle ball, the nozzle ball is fixed on the nozzle body, the nozzle core comprises a bottom plate, an upper liquid inlet island and a lower liquid inlet island, an upper drainage island and a lower drainage island are symmetrically arranged in sequence along the center line of the bottom plate on one side of the bottom plate, an upper impact wall perpendicular to the liquid inlet channel and a lower impact wall perpendicular to the liquid inlet channel are arranged in sequence, and the flow channel at the water outlet of the nozzle is a trumpet shape with a small inside and a large outside, and a middle island is arranged along the center line of the bottom plate, the middle island and the upper liquid inlet island on the upper side form an upper liquid inlet flow channel, the middle island and the upper drainage island on the upper side form an upper liquid injection flow channel, the middle island and the lower liquid inlet island on the lower side form a lower liquid inlet flow channel, the middle island and the lower drainage island on the lower side form a lower liquid injection flow channel, the extension line of the center line of the upper liquid injection flow channel is located on the lower impact wall, and the extension line of the center line of the lower liquid injection flow channel is located on the upper impact wall. It can increase the spray area of ​​the nozzle and achieve a better washing effect.

Description

Technical Field

[0001] The invention relates to a nozzle for washing a vehicle. Background Art

[0002] The liquid sprayed by the existing vehicle washing nozzles, whether in a columnar or fan-shaped shape, falls on a small area of ​​the object to be cleaned, and the cleaning area of ​​the object to be cleaned is limited, making it difficult to clean it thoroughly. For example, when the vehicle washing nozzle is used to clean the windshield of a vehicle, the nozzle sprays water on a limited area of ​​the windshield, resulting in dry scraping of the wiper blades, causing damage to the wiper blades and affecting the cleaning effect, and also causing damage to the windshield, which will ultimately directly affect the driver's vision and cause driving safety hazards. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a nozzle for washing a vehicle with a larger spraying area in view of the existing technical conditions.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A vehicle washing nozzle comprises a nozzle body, a nozzle ball and a nozzle core, wherein the nozzle core is fixed in the nozzle ball, the nozzle ball is fixed on the nozzle body, the nozzle core comprises a bottom plate, an upper liquid inlet island and a lower liquid inlet island, an upper drainage island and a lower drainage island, an upper impact wall perpendicular to the liquid inlet channel and a lower impact wall perpendicular to the liquid inlet channel are symmetrically arranged in sequence along the center line of the bottom plate on one side of the bottom plate, the flow channel at the water outlet of the nozzle is a trumpet shape that is small inside and large outside, a middle island is arranged along the center line of the bottom plate, the middle island and the upper liquid inlet island on the upper side form an upper liquid inlet flow channel, the middle island and the upper drainage island on the upper side form an upper injection flow channel, the middle island and the lower liquid inlet island on the lower side form a lower liquid inlet flow channel, the middle island and the lower drainage island on the lower side form a lower injection flow channel, the extension line of the center line of the upper injection flow channel is located on the lower impact wall, and the extension line of the center line of the lower injection flow channel is located on the upper impact wall.

[0006] Preferably, the line connecting the upper outlet of the upper liquid injection channel and the lower inlet of the nozzle outlet channel is parallel to the center line, so that the liquid ejected from the upper liquid injection channel will basically collide with the lower impact wall, which can better expand the downward swing of the liquid.

[0007] Preferably, the line connecting the lower outlet of the lower injection flow channel and the upper inlet of the flow channel at the nozzle outlet is parallel to the center line, so that the liquid ejected from the lower injection flow channel will basically collide with the upper impact wall, which can better expand the upward swing of the liquid.

[0008] Preferably, the liquid inlet island is arranged at the rear of the bottom plate, and the impact wall is arranged at the head of the bottom plate.

[0009] Preferably, the nozzle ball fixing cavity at the nozzle body head is provided with an elastic sealing ring, and an annular groove is opened between the sealing ring and the nozzle body head outside the nozzle ball fixing cavity, so that the elastic sealing ring can radially expand and contract, thereby achieving a better seal between the nozzle body head and the nozzle ball.

[0010] Preferably, the widths of the upper liquid ejection channel and the lower liquid ejection channel are respectively smaller than the widths of the upper liquid inlet channel and the lower liquid inlet channel.

[0011] Preferably, the surface of the middle island facing the flow channel at the water outlet of the nozzle is an arc-shaped surface.

[0012] Preferably, the upper reflow surface of the upper drainage island is consistent with the tangent surface at the outlet of the upper injection flow channel, and the lower reflow surface of the lower drainage island is consistent with the tangent surface at the outlet of the lower injection flow channel.

[0013] Preferably, the nozzle ball is also provided with a tool adjustment hole, and a tool is positioned on the adjustment hole, and then the nozzle ball is rotated by the tool to adjust the angle of the spray area to adapt to changes in the position of the object to be cleaned during actual use.

[0014] Compared with the prior art, the advantages of the present invention are: by setting two liquid inlet channels in the nozzle, the two liquid columns generated in the two liquid inlet channels in the nozzle can collide with each other, and form a swinging liquid column sprayed out at the liquid outlet of the nozzle, thereby increasing the spray area of ​​the nozzle and achieving a better washing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereoscopic diagram of a vehicle washing nozzle according to an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the exploded structure of the vehicle washing nozzle according to an embodiment of the present invention.

[0017] Figure 3 It is a schematic structural diagram of a vehicle washing nozzle according to an embodiment of the present invention.

[0018] Figure 4 It is a schematic diagram of the nozzle body structure of the vehicle washing nozzle according to an embodiment of the present invention.

[0019] Figure 5 It is a stereoscopic view of the nozzle ball of the vehicle washing nozzle according to an embodiment of the present invention.

[0020] Figure 6 It is a schematic diagram of the nozzle ball structure of the vehicle washing nozzle according to an embodiment of the present invention.

[0021] Figure 7 It is a three-dimensional diagram of the nozzle core of the vehicle washing nozzle according to an embodiment of the present invention.

[0022] Figure 81. It is a top view of the nozzle core of the vehicle washing nozzle according to an embodiment of the present invention.

[0023] Fig. 9 - Fig.13 It is a schematic diagram of the liquid spraying process of the vehicle washing nozzle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the embodiments of the accompanying drawings.

[0025] like Figure 1-3 As shown, the vehicle washing nozzle is composed of a nozzle body 10 , a nozzle ball 20 and a nozzle core 30 .

[0026] The nozzle core 30 is fixed in the nozzle ball 20 , and the nozzle ball 20 is fixed on the nozzle body 10 .

[0027] The head of the nozzle body 10 is provided with a nozzle ball fixing cavity 101 for accommodating and fixing the nozzle ball 20 .

[0028] An elastic sealing ring portion 102 is provided in the nozzle ball fixing cavity 101 at the head of the nozzle body 10, and an annular groove 105 is opened between the sealing ring portion 102 and the head of the nozzle body outside the nozzle ball fixing cavity 101, so that the elastic sealing ring portion 102 can radially expand and contract; during the process of installing the nozzle ball 20 into the nozzle ball fixing cavity 101, the elastic sealing ring portion 102 elastically deforms along the radial outer side, so that the nozzle ball 20 enters the nozzle ball fixing cavity 101. After the nozzle ball 20 is installed, the elastic sealing ring portion 102 retracts and fixes and seals the nozzle ball 20 to prevent leakage between the head of the nozzle body 10 and the nozzle ball 20.

[0029] like Figure 3 , 4 As shown, a primary flow channel 104 and a main flow channel 103 connected to each other are provided in the nozzle body 10, wherein the axis of the main flow channel 103 and the center line of the nozzle core 30 remain concentric in a normal state, and in an adjustment state, the two maintain a small angle to reduce the loss of water pressure and ensure the kinetic energy required for high-frequency oscillation.

[0030] like Figure 5 , 6 As shown, a nozzle core fixing cavity 202 is provided at the center of the nozzle ball 20. The nozzle core fixing cavity 202 of this embodiment is square, and the corresponding nozzle core 30 is also square. The nozzle core 30 is fixed in the nozzle core fixing cavity 202 to form a nozzle.

[0031] A conical surface 2021 is provided at the entrance of the nozzle core fixing cavity 202 to facilitate the insertion of the nozzle core 30 .

[0032] A flow channel 204 is provided at the outlet of the nozzle core fixing cavity 202 , and the liquid from the nozzle core 30 is sprayed out from the flow channel 204 .

[0033] The nozzle ball 20 is also provided with an upper adjustment hole 201 and a lower adjustment hole 203. A tool is used to position the nozzle ball 20 on the upper adjustment hole 201 and the lower adjustment hole 203. The nozzle ball 20 is then rotated by the tool to adjust the angle of the spraying area to adapt to changes in the position of the object to be cleaned during actual use. For example, if the position of the glass to be cleaned is offset due to installation errors, the position of the nozzle ball 20 needs to be adjusted.

[0034] like Figure 7 , 8 As shown, the nozzle core 30 includes a bottom plate 300, and an upper liquid inlet island 301 and a lower liquid inlet island 302, an upper drainage island 303 and a lower drainage island 304, an upper impact wall 305 perpendicular to the liquid inlet channel, and a lower impact wall 306 perpendicular to the liquid inlet channel are symmetrically arranged in sequence on one side of the bottom plate 300 along both sides of the center line of the bottom plate 300. The upper and lower liquid inlet islands are arranged at the tail of the bottom plate, and the upper and lower impact walls 305 and 306 are arranged at the head of the bottom plate, so that a nozzle water inlet flow channel 3011 of the nozzle core 30 is formed between the upper liquid inlet island 301 and the lower liquid inlet island 302, and a nozzle water outlet flow channel 3012 is formed between the upper impact wall 305 and the lower impact wall 306.

[0035] The flow channel 3012 at the water outlet of the nozzle is in the shape of a trumpet that is small inside and large outside. In this way, the sprayed water flow area is larger, and the water flow can swing up and down, and the amplitude of the water flow swing is limited by the trumpet shape.

[0036] The bottom plate 300 is provided with a middle island 307 along the center line. The middle island 307 and the upper liquid inlet island 301 on the upper side form an upper liquid inlet channel 3013 . The middle island 307 and the upper drainage island 303 on the upper side form an upper liquid ejection channel 3015 .

[0037] The above-mentioned middle island 307 and the lower liquid inlet island 302 on the lower side form a lower liquid inlet channel 3014, and the middle island 307 and the lower drainage island 304 on the lower side form a lower liquid injection channel 3016.

[0038] The extension line of the center line 30151 of the above-mentioned upper liquid injection channel 3015 is located on the lower impact wall 306. It is best that the line 30152 connecting the upper outlet of the upper liquid injection channel 3015 and the lower inlet of the nozzle outlet channel 3012 is parallel to the center line 30151. In this way, the liquid sprayed from the upper liquid injection channel 3015 will basically collide with the lower impact wall 306, which can better expand the downward swing of the liquid.

[0039] The extension line of the center line 30161 of the above-mentioned lower ejection channel 3016 is located on the upper impact wall 305. It is best that the connecting line 30162 between the lower outlet of the lower ejection channel 3016 and the upper inlet of the nozzle outlet channel 3012 is parallel to the center line 30161. In this way, the liquid ejected from the lower ejection channel 3016 will basically collide with the upper impact wall 305, which can better expand the upward swing of the liquid.

[0040] The width L1 of the upper liquid injection channel 3015 and the lower liquid injection channel 3016 is respectively smaller than the width L2 of the upper liquid inlet channel 3013 and the lower liquid inlet channel 3014 , so that the water outlet pressure of the upper liquid injection channel 3015 and the lower liquid injection channel 3016 can be increased.

[0041] The surface 3071 of the intermediate island 307 relative to the flow channel 3012 at the water outlet of the nozzle is an arc-shaped surface, which can better guide the colliding and refluxed liquid to another liquid column.

[0042] The upper return surface 3031 of the upper drainage island 303 is preferably consistent with the tangent surface 30153 at the outlet of the upper injection channel 3015, so that the liquid injected from the lower injection channel 3016 to the upper collision wall 305 can be guided to the outlet of the upper injection channel 3015. Figure 8 , more effectively changing the direction of the liquid column ejected from the upper injection channel 3015.

[0043] The lower return surface 3041 of the lower drainage island 304 is preferably consistent with the tangent surface 30163 at the outlet of the lower injection channel 3016, so that the liquid injected from the upper injection channel 3015 to the lower collision wall 306 can be guided to the outlet of the lower injection channel 3016. Figure 8 , more effectively changing the direction of the liquid column ejected from the lower injection channel 3016.

[0044] Working process of the vehicle washing nozzle: After the washing pump is started, pressurized water enters the main flow channel 103 from the primary flow channel 104 of the nozzle body 10, enters the nozzle core 30 through the main flow channel 103, and then flows through the upper liquid inlet flow channel 3013 and the lower liquid inlet flow channel 3014 of the nozzle core 30, and forms two water columns in the upper liquid ejection flow channel 3015 and the lower liquid ejection flow channel 3016 respectively. The two water columns collide, and most of the water is hydrated into one water column and then ejected from the nozzle outlet flow channel 3012. The remaining water is respectively impacted by the upper and lower impact walls on both sides and returns to flow through the drainage island to form a reflux and flows to the two water columns again. Since the water pressure flowing to the two water columns cannot be absolutely balanced, the direction of the two water columns shooting to the water outlet is changed, so that the water column at the water outlet swings outward at a high frequency, thereby expanding the cleaning range.

[0045] The details are as follows: Fig. 9As shown, in the initial state, the water columns ejected from the liquid outlet of the upper liquid ejection channel 3015 and the liquid outlet of the lower liquid ejection channel 3016 converge at the water outlet and are ejected along the center direction of the water outlet.

[0046] like Fig.10 As shown, since the pressures of the water columns ejected from the liquid outlet of the upper liquid injection channel 3015 and the liquid outlet of the lower liquid injection channel 3016 are not equal, there are random differences. If the pressure of the water column from the lower injection port is greater than that from the upper injection port, the confluence position will be offset toward the upper side of the water outlet, and a portion of the confluent water will collide with the upper impact wall 305 and flow toward the upper drainage island 303 to eventually form a backflow, which changes the direction of the water column from the liquid outlet of the upper liquid injection channel 3015, and the water outlet is ejected in the center direction.

[0047] like Fig.11 As shown, the water pressure in the curved surface 3071 area of ​​the middle island 307 gradually increases, gradually pressurizing the water column at the outlet of the upper injection channel 3015 and changing the direction of the water column. The water column at the outlet of the upper injection channel 3015 impacts the water column at the outlet of the lower injection channel 3016, causing the direction of the water column at the outlet of the lower injection channel 3016 to change, and finally causing the outlet to gradually change to spray in the upward direction.

[0048] like Fig.12 As shown, after the water column at the outlet of the upper injection channel 3015 continues to be pressurized, it cuts off the water column at the outlet of the lower injection channel 3016 and moves toward the outlet. During the movement, a part of the water column collides with the lower impact wall 306 and flows to the lower drainage island 304 to eventually form a backflow, which changes the direction of the water column at the outlet of the lower injection channel 3016, and the outlet injection direction gradually changes from upper side injection to injection in the center direction.

[0049] like Fig.13 As shown, the water pressure in the curved surface 3071 area of ​​the middle island 307 gradually increases, gradually pressurizing the water column at the outlet of the lower injection channel 3016 and changing the direction of the water column. The water column at the outlet of the lower injection channel 3016 impacts the water column at the outlet of the upper injection channel 3015, causing the direction of the water column at the outlet of the upper injection channel 3015 to change, and finally causing the outlet to gradually change to spray in the downward direction.

[0050] It should be noted that the directional characters such as up and down and words containing such directional characters mentioned in this embodiment and this application document that indicate directions are only used for the convenience of explanation. They only refer to the specific directions determined during the description and do not constitute a limitation on the content and protection scope of the present invention.

Claims

1. A vehicle washing nozzle, characterized in that: It includes a nozzle body, a nozzle ball and a nozzle core, the nozzle core is fixed in the nozzle ball, the nozzle ball is fixed on the nozzle body, the nozzle core includes a bottom plate, an upper liquid inlet island and a lower liquid inlet island, an upper drainage island and a lower drainage island are symmetrically arranged in sequence along the center line of the bottom plate on one side of the bottom plate, an upper impact wall perpendicular to the nozzle water inlet flow channel and a lower impact wall perpendicular to the nozzle water inlet flow channel, a nozzle water inlet flow channel of the nozzle core is formed between the upper liquid inlet island and the lower liquid inlet island, a nozzle water outlet flow channel is formed between the upper impact wall and the lower impact wall, the nozzle water outlet flow channel is a trumpet shape with a small inside and a large outside, and the bottom plate is provided with a middle island along the center line The middle island and the upper liquid inlet island on the upper side form an upper liquid inlet flow channel, the middle island and the upper drainage island on the upper side form an upper liquid injection flow channel, the middle island and the lower liquid inlet island on the lower side form a lower liquid inlet flow channel, the middle island and the lower drainage island on the lower side form a lower liquid injection flow channel, the extension line of the center line of the upper liquid injection flow channel is located on the lower impact wall, and the extension line of the center line of the lower liquid injection flow channel is located on the upper impact wall; the line connecting the upper outlet of the upper liquid injection flow channel and the lower inlet of the flow channel at the nozzle outlet is parallel to the center line of the upper liquid injection flow channel; the line connecting the lower outlet of the lower liquid injection flow channel and the upper inlet of the flow channel at the nozzle outlet is parallel to the center line of the lower liquid injection flow channel.

2. The vehicle washing nozzle according to claim 1, characterized in that: The nozzle ball fixing cavity at the nozzle body head is provided with an elastic sealing ring portion, and an annular groove is formed between the sealing ring portion and the nozzle body head outside the nozzle ball fixing cavity.

3. The vehicle washing nozzle according to claim 1, characterized in that: The widths of the upper liquid injection flow channel and the lower liquid injection flow channel are respectively smaller than the widths of the upper liquid inlet flow channel and the lower liquid inlet flow channel.

4. The vehicle washing nozzle according to claim 1, characterized in that: The surface of the middle island relative to the flow channel at the water outlet of the nozzle is an arc-shaped surface.

5. The vehicle washing nozzle according to claim 1, characterized in that: The upper reflow surface of the upper drainage island is consistent with the tangent surface at the outlet of the upper injection flow channel, and the lower reflow surface of the lower drainage island is consistent with the tangent surface at the outlet of the lower injection flow channel.

6. The vehicle washing nozzle according to claim 1, characterized in that: The nozzle ball is also provided with a tool adjustment hole, a tool is used to position the nozzle ball on the adjustment hole, and then the tool is used to rotate the nozzle ball.

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