Decontamination device for a vehicle door handle and vehicle

Abstract

This utility model provides a cleaning device for car door handles and a vehicle, relating to the field of vehicle cleaning technology. The cleaning device for car door handles includes: at least one nozzle structure, at least one delivery channel, and a medium pressurizing structure. The medium pressurizing structure pressurizes the cleaning medium and inputs the pressurized cleaning medium into the delivery channel. The first end of the gradually expanding cavity of the nozzle structure is connected to the delivery channel, which inputs the cleaning medium into the gradually expanding cavity through the first end. The second end of the gradually expanding cavity is the outlet end of the cleaning medium, and the diameter of the first end of the gradually expanding cavity is smaller than the diameter of the second end. The extension line of the direction in which the cleaning medium is ejected from the outlet end is parallel or nearly parallel to the outer surface of the car door handle. The cleaning medium ejected through the outlet end is a planar fluid that cleans the outer surface of the car door handle. This solution improves the cleaning efficiency of the outer surface of the car door handle, and the control and cleaning methods are simple and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of vehicle decontamination technology, and in particular to a decontamination device for car door handles and a vehicle. Background Technology

[0002] As an external component of a vehicle, car door handles are constantly exposed to the external environment, and their surfaces are prone to accumulating dirt, bacteria, and viruses. Furthermore, door handles are frequently touched by drivers and passengers, which can easily lead to the spread of dirt, bacteria, and viruses. With the increasing awareness of health, people regularly or frequently clean the surface of car door handles. Moreover, with the development of intelligent technology, cleaning structures for car door handles have gradually become a research hotspot.

[0003] In existing technologies, when cleaning the surface of car door handles, detachable physical structures are usually used, such as a combination of cloth and brush that are paired with the door handle. The surface of the car door handle is cleaned manually by hand. This cleaning method has the problems of inconvenience and incomplete cleaning of the car door handle. Utility Model Content

[0004] This utility model provides a cleaning device and vehicle for car door handles, which solves the problems of inconvenient operation and incomplete cleaning of car door handles when cleaning them.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] In a first aspect, embodiments of the present invention provide a cleaning device for car door handles, comprising:

[0007] At least one nozzle structure, at least one delivery channel, and a medium pressurization structure;

[0008] The medium pressurization structure is used to pressurize the cleaning medium and input the pressurized cleaning medium into the conveying channel;

[0009] The nozzle structure includes a gradually expanding cavity, the first end of which is connected to the delivery channel. The delivery channel is used to input a cleaning medium into the gradually expanding cavity through the first end of the gradually expanding cavity. The second end of the gradually expanding cavity is the outlet end of the cleaning medium. The diameter of the first end of the gradually expanding cavity is smaller than the diameter of the second end of the gradually expanding cavity.

[0010] The spray nozzle is positioned around the outer surface of the door handle, and the extension line of the direction in which the cleaning medium is sprayed from the spray nozzle is parallel or nearly parallel to the outer surface of the door handle; the cleaning medium sprayed through the spray nozzle is a planar fluid to remove dirt from the outer surface of the door handle.

[0011] In some embodiments, the nozzle from which the cleaning medium is ejected has at least one of the following shapes:

[0012] Long and narrow;

[0013] Slit-like;

[0014] Slit-like;

[0015] linear;

[0016] fissure-like;

[0017] Elliptical slit shape;

[0018] Curved slit-like; and

[0019] Wavy, slit-like.

[0020] In some embodiments, the expanding cavity forms an angle with the delivery channel, the angle being between 45° and 90°.

[0021] In some embodiments, a flow diversion structure is provided within the expanding cavity.

[0022] In some embodiments, the diversion structure includes a plurality of diversion columns spaced apart;

[0023] A flow-diverting channel is formed between two adjacent flow-diverting columns;

[0024] The cleaning medium is diverted to the ejection end via the diversion channel.

[0025] In some embodiments, a flow-diverting channel is formed between the first diversion column and the sidewall of the corresponding expanding cavity;

[0026] The first diversion column is the diversion column located at the edge of a plurality of diversion columns arranged at intervals.

[0027] In some embodiments, the diversion structure includes multiple diversion pipes;

[0028] The first end of the diversion pipe extends into the interior of the diffuser cavity, and the second end of the diversion pipe extends into the ejection end; the cleaning medium enters the diversion pipe from the first end of the diversion pipe and is diverted from the second end of the diversion pipe to the ejection end.

[0029] In some embodiments, the outer surface of the door handle is a rounded rectangular structure, and the edge of the rounded rectangular structure includes at least one curved segment and at least one straight segment;

[0030] At least one ejector end is disposed along the curved segment, and / or at least one ejector end is disposed along the straight segment;

[0031] Specifically, when the nozzle end is set along the curved segment, the nozzle structure is curved; when the nozzle end is set along the straight segment, the nozzle structure is straight.

[0032] In some embodiments, the cleaning medium ejected via the ejection end is parallel to the outer surface of the door handle;

[0033] Alternatively, the angle between the cleaning medium sprayed from the nozzle and the outer surface of the door handle is less than a preset angle.

[0034] In some embodiments, a heating structure is provided inside the expanding cavity or the delivery channel, the heating structure being used to heat the cleaning medium.

[0035] Secondly, this utility model embodiment also provides a vehicle, including a cleaning device for a door handle as described in any one of the first aspects.

[0036] The beneficial effects of this utility model are:

[0037] The cleaning device for car door handles provided by this utility model includes at least one nozzle structure, at least one delivery channel, and a medium pressurization structure. The nozzle structure includes a gradually expanding cavity. The delivery channel inputs cleaning medium into the gradually expanding cavity through a first end. The second end of the gradually expanding cavity is the outlet end of the cleaning medium, positioned around the outer surface of the car door handle. The extension line of the direction in which the cleaning medium is ejected from the outlet end is parallel or nearly parallel to the outer surface of the car door handle, thus achieving cleaning of the outer surface of the car door handle by the cleaning medium ejected from the outlet end. Furthermore, a medium pressurization structure is designed to pressurize the cleaning medium. The cleaning medium is pressurized and input into the conveying channel. The nozzle structure is designed to include a gradually expanding cavity, so that the cleaning medium ejected from the spray end of the gradually expanding cavity is a surface fluid and a high-pressure fluid. This can increase the cleaning area of ​​the sprayed cleaning medium and improve the cleaning efficiency on the outer surface of the car door handle. In the cleaning device for car door handles provided by this utility model, it is only necessary to control whether the conveying channel delivers the cleaning medium into the gradually expanding cavity or whether the spray end ejects the cleaning medium to control whether to clean the outer surface of the car door handle. The control method and the cleaning method are simple and easy to operate. Attached Figure Description

[0038] Figure 1 This is one of the front views of the door handle cleaning device provided in this embodiment of the present invention;

[0039] Figure 2 This is one of the cross-sectional views of the door handle cleaning device provided in this embodiment of the present invention;

[0040] Figure 3A second front view of the door handle cleaning device provided in an embodiment of this utility model;

[0041] Figure 4 The third front view of the cleaning device for car door handles provided in this embodiment of the present utility model;

[0042] Figure 5 Fourth front view of the door handle cleaning device provided in this embodiment of the present utility model;

[0043] Figure 6 Fifth front view of the door handle cleaning device provided in this embodiment of the present utility model;

[0044] Figure 7 The sixth front view of the cleaning device for car door handles provided in this embodiment of the present invention;

[0045] Figure 8 Seventh front view of the cleaning device for car door handles provided in this embodiment of the present utility model;

[0046] Figure 9 Eighth front view of the door handle cleaning device provided in this embodiment of the present utility model;

[0047] Figure 10 A second cross-sectional view showing the cleaning device for car door handles provided in this embodiment of the present utility model;

[0048] Figure 11 The third cross-sectional view of the cleaning device for car door handles provided in this embodiment of the present invention;

[0049] Figure 12 Fourth cross-sectional view showing the cleaning device for car door handles provided in this embodiment of the present utility model;

[0050] Figure 13 This is one of the structural schematic diagrams of the gradually expanding cavity provided in the embodiment of this utility model;

[0051] Figure 14 This is the second schematic diagram showing the structure of the gradually expanding cavity provided in the embodiment of this utility model.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1- Nozzle structure; 11- Diverging chamber; 111- First end of the diverging chamber; 112- Second end of the diverging chamber; 113- Flow divider column; 1131- First end of the flow divider column; 1132- Second end of the flow divider column; 114- Flow divider pipe; 1141- First end of the flow divider pipe; 1142- Second end of the flow divider pipe; 2- Delivery channel; 3- Door handle; 4- Door; 5- First wall surface; 6- Second wall surface; 7- Curved section; 8- Straight section. Detailed Implementation

[0054] To make the technical problems, technical solutions, and advantages of this application clearer, a detailed description will be provided below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0055] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0056] In the various embodiments of this application, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0057] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, without limiting the number of objects; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, "A or B" covers three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0058] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] To address the problems of inconvenient operation and incomplete cleaning of car door handles in existing cleaning methods, this utility model provides a car door handle cleaning device and a vehicle.

[0060] Figure 1 This is a front view of the cleaning device for car door handles provided in this embodiment of the utility model. Figure 2 This is a cross-sectional view of the cleaning device for car door handles provided in this embodiment of the utility model, combined with... Figures 1 to 2 This utility model embodiment provides a cleaning device for car door handles, comprising:

[0061] At least one nozzle structure 1, at least one delivery channel 2, and a medium pressurization structure.

[0062] The medium pressurization structure is used to pressurize the cleaning medium to obtain a pressurized cleaning medium (or a high-pressure cleaning medium), and the pressurized cleaning medium (or a high-pressure cleaning medium) is input into the conveying channel 2.

[0063] It should be noted that the cleaning device for the car door handle may also include a media storage structure or a media supply structure. The media storage structure or media supply structure is used to store the cleaning medium and to output the cleaning medium. After the cleaning medium is pressurized by the media pressurization structure, the pressurized cleaning medium (or high-pressure cleaning medium) is obtained. The media pressurization structure is connected to the conveying channel 2. The media pressurization structure inputs the pressurized cleaning medium (or high-pressure cleaning medium) into the conveying channel 2, so that the conveying channel 2 inputs the cleaning medium into the gradually expanding cavity 11 through the first end of the gradually expanding cavity 11. The cleaning medium can be understood as a high-pressure cleaning medium.

[0064] The cleaning medium can be a liquid medium, a gaseous medium, or a gas-liquid mixture comprising both a gaseous and a liquid medium. When the cleaning medium is a liquid medium, it can be water or a liquid containing chemical substances that remove stains, bacteria, or viruses. When spraying the cleaning medium, it can be a surface gas, a surface fluid, or a surface air curtain.

[0065] When the cleaning medium is a liquid medium, the medium pressurization structure can be a liquid pump; when the cleaning medium is a gaseous medium, the medium pressurization structure can be an air pump; when the cleaning medium is a gas-liquid mixture (the gas-liquid mixture includes both gaseous and liquid media), the medium pressurization structure includes both a liquid pump and an air pump.

[0066] It is understood that nozzle structure 1 and conveying channel 2 are connected, and the number of nozzle structures 1 and conveying channels 2 can be the same or different. When the number of nozzle structures 1 and conveying channels 2 is the same, one nozzle structure 1 is connected to one conveying channel 2; when the number of nozzle structures 1 and conveying channels 2 is different, one nozzle structure 1 is connected to two or more conveying channels 2, or one conveying channel 2 is connected to two or more nozzle structures 1.

[0067] The connectivity between nozzle structure 1 and conveying channel 2 is controllable. This can be achieved by installing a controllable switch, such as a solenoid valve, between them to regulate the connection. Connecting one nozzle structure 1 to one conveying channel 2 allows for targeted control of this connectivity. Connecting one nozzle structure 1 to two or more conveying channels 2, or vice versa, simplifies the structure of the door handle cleaning device.

[0068] In this embodiment of the utility model, a nozzle structure 1 connected to a conveying channel 2 is used as an example for explanation.

[0069] The nozzle structure 1 includes a gradually expanding cavity 11. The first end 111 of the gradually expanding cavity is connected to the delivery channel 2. The delivery channel 2 is used to input a cleaning medium into the gradually expanding cavity 11 through the first end 111. The second end 112 of the gradually expanding cavity is the outlet end of the cleaning medium. The diameter of the first end 111 of the gradually expanding cavity is smaller than the diameter of the second end 112 of the gradually expanding cavity.

[0070] It should be noted that the gradually expanding cavity 11 is a cavity structure, and the gradually expanding cavity 11 is a flat cavity. The gradually expanding cavity 11 includes a first end and a second end opposite to each other, and the diameter of the cavity of the gradually expanding cavity 11 gradually increases from the first end 111 to the second end 112 of the gradually expanding cavity (i.e., in the direction of top view).

[0071] By designing the expanding cavity 11 as a flat chamber, and gradually increasing the diameter of the chamber from the first end 111 to the second end 112 of the expanding cavity, the surface cleaning medium sprayed out of the expanding cavity can increase the cleaning area and improve the cleaning efficiency.

[0072] The cleaning medium (or high-pressure cleaning medium) is conveyed through the conveying channel 2 toward the first end 111 of the gradually expanding cavity. After entering the gradually expanding cavity 11, the cleaning medium (or high-pressure cleaning medium) flows to the second end 112 of the gradually expanding cavity and is ejected from the second end 112. Figure 2 The arrow shown indicates the direction of the cleaning medium's flow.

[0073] It should also be noted that a switch structure can be provided inside the expanding cavity 11. The switch structure can be a baffle that can be controlled to extend and retract. In the extended state, the baffle is completely in contact with the inner wall of the expanding cavity 11. The switch structure controls whether the cleaning medium (or high-pressure cleaning medium) can enter the expanding cavity 11 or whether it can be ejected from the ejection end of the expanding cavity 11. For example, a baffle is positioned at the first end 111 of the expanding cavity. When the baffle is extended, the cleaning medium (or high-pressure cleaning medium) cannot enter the expanding cavity 11. When the baffle is retracted, the cleaning medium (or high-pressure cleaning medium) can enter the expanding cavity 11 through the first end 111 and can also be ejected from the ejection end of the expanding cavity 11. Alternatively, the baffle is positioned at the second end 112 of the expanding cavity, or between the first end 111 and the second end 112 of the expanding cavity. When the baffle is extended, the cleaning medium (or high-pressure cleaning medium) can enter the expanding cavity 11, but cannot be ejected from the expanding cavity 11. When the baffle is retracted, the cleaning medium (or high-pressure cleaning medium) can enter the gradually expanding cavity 11 through the first end 111 and exit from the outlet end of the gradually expanding cavity 11. Alternatively, there are two baffles, respectively set at the first end 111 and the second end 112 of the gradually expanding cavity. The extension and retraction of the baffle at the first end of the gradually expanding cavity 11 controls whether the cleaning medium (or high-pressure cleaning medium) can enter the gradually expanding cavity 11 through the first end 111, and the extension and retraction of the baffle at the second end 112 controls whether the cleaning medium (or high-pressure cleaning medium) can exit from the outlet end of the gradually expanding cavity 11.

[0074] By setting this switch structure, it is possible to control whether the nozzle structure 1 receives or sprays the cleaning medium, which facilitates control over whether to perform the cleaning operation.

[0075] It should also be noted that this switch structure can also be used in conjunction with the aforementioned controllable switch, that is, to control whether the cleaning medium flows in the delivery channel 2 and the gradually expanding cavity 11 respectively.

[0076] The spray nozzle is disposed around the outer surface of the door handle 3, and the extension line of the direction in which the cleaning medium is sprayed from the spray nozzle is parallel or nearly parallel to the outer surface of the door handle 3.

[0077] It should be noted that the spray nozzle is located around the outer surface of the door handle 3. This can be understood as the spray nozzle being located on the door 4. The spray nozzle does not contact the edge of the outer surface of the door handle 3, and the distance between the spray nozzle and the edge of the outer surface of the door handle 3 is less than a preset distance. This preset distance is a small value to ensure that the cleaning medium sprayed from the spray nozzle can clean the outer surface of the door handle 3.

[0078] The extended line of the direction in which the cleaning medium is sprayed from the nozzle is nearly parallel to the outer surface of the door handle 3. This can be understood as forming an angle between the extended line of the direction in which the cleaning medium is sprayed from the nozzle and the outer surface of the door handle 3. The value of this angle ranges from 0° to 5°. This design allows the cleaning medium sprayed from the nozzle to better adhere to or flow along the outer surface of the door handle 3 in a planar or air curtain manner, thereby achieving the purpose of efficient cleaning.

[0079] The angle between the extended line of the direction in which the cleaning medium is sprayed from the nozzle end and the outer surface of the door handle 3 can be adjusted by adjusting the inclination of the expanding cavity 11 relative to the outer surface of the door handle 3.

[0080] It should also be noted that in the embodiments of this utility model, the cleaning medium being a surface fluid can also be understood as the cleaning medium being a curtain-like liquid or a curtain-like liquid, or as the cleaning medium being a surface gas or a surface gas curtain.

[0081] Since the cleaning device for the car door handle provided in this embodiment includes at least one nozzle structure 1, and each nozzle structure 1 includes a spray end, the number of spray ends is at least one. When the number of nozzle structures 1 is one, a spray end can be located above, below, to the left, to the right, or at the intersection of any two of the outer surface of the car door handle 3. For example, a schematic diagram showing a spray end located above the outer surface of the car door handle 3 is shown below. Figure 1 As shown in the diagram, a nozzle is positioned below the outer surface of the door handle 3. Figure 3 As shown in the diagram, a nozzle is positioned on the left side of the outer surface of the door handle 3. Figure 4 As shown in the diagram, a nozzle is positioned on the right side of the outer surface of the door handle 3. Figure 5 As shown; when there are two or more nozzle structures 1, the two or more nozzle ends can be arranged together on the upper, lower, left, right, or any two-way intersection of the outer surface of the door handle 3. Alternatively, the two or more nozzle ends can be arranged separately at different positions on the upper, lower, left, right, or any two-way intersection of the outer surface of the door handle 3. For example, when there are two nozzle structures 1, such as... Figure 6 As shown, one nozzle is positioned above the outer surface of the door handle 3, and the other nozzle is positioned to the left of the outer surface of the door handle 3. For example, if there are two nozzle structures 1, such as... Figure 7 As shown, one nozzle is located below the outer surface of the door handle 3, and the other nozzle is located to the left of the outer surface of the door handle 3. For example, when there are two nozzle structures 1, such as... Figure 8As shown, one nozzle is located below the outer surface of the door handle 3, and the other nozzle is located to the right of the outer surface of the door handle 3. For example, if there are two nozzle structures 1, such as... Figure 9 As shown, one nozzle is positioned above the outer surface of the door handle 3, and the other nozzle is positioned to the right of the outer surface of the door handle 3. A cross-sectional view showing the nozzle positioned below the outer surface of the door handle 3 is shown below. Figure 10 As shown.

[0082] By setting two or more nozzle structures 1, the cleaning efficiency of the outer surface of the door handle 3 can be improved.

[0083] It should be noted that the specific size of each nozzle can be determined based on its placement, the dimensions of the outer surface of the door handle 3, and the distance between the nozzle and the edge of the outer surface of the door handle 3. For example, if the nozzle is positioned above or below the outer surface of the door handle 3, its size can be larger; if it is positioned to the left or right of the outer surface of the door handle 3, its size can be smaller. The larger the outer surface of the door handle 3, the larger the nozzle size; the greater the distance between the edges of the outer surface of the door handle 3, the larger the nozzle size. Here, the size of the nozzle can be understood as the end face size of the nozzle.

[0084] Among them, the top, bottom, left and right sides of the outer surface of the door handle 3 are the observer's viewing angles when the observer is facing the outer surface of the door handle 3 while the vehicle is in a natural driving or parking state.

[0085] It should be noted that regardless of the direction in which the nozzle is positioned around the outer surface of the door handle 3, the cleaning medium sprayed from the nozzle is directed towards the interior or center of the outer surface of the door handle 3.

[0086] In this embodiment of the invention, the conveying channel 2 inputs cleaning medium into the gradually expanding cavity 11 through the first end of the cavity 11. The second end of the cavity 11 is the outlet end of the cleaning medium. The outlet end is positioned around the outer surface of the door handle 3. The extension line of the direction in which the cleaning medium is sprayed from the outlet end is parallel or nearly parallel to the outer surface of the door handle. The cleaning medium sprayed from the outlet end is sprayed toward the outer surface of the door handle 3, thereby achieving the cleaning of the outer surface of the door handle 3 by the cleaning medium sprayed from the outlet end. Furthermore, it is only necessary to control whether the conveying channel 2 delivers cleaning medium into the gradually expanding cavity 11 or whether the outlet end sprays cleaning medium to achieve the control of whether the outer surface of the door handle 3 is cleaned. The control method and the cleaning method are simple and easy to operate.

[0087] To improve the cleaning efficiency of the outer surface of the door handle 3 and ensure that the cleaning medium sprayed from the nozzle can flow along or adhere to the outer surface of the door handle 3, a medium pressurization structure is designed to pressurize the cleaning medium and input the pressurized cleaning medium into the delivery channel 2. The nozzle structure 1 is designed to include a gradually expanding cavity 11, so that the cleaning medium sprayed from the nozzle end of the gradually expanding cavity 11 is a planar fluid and a high-pressure fluid. This can increase the cleaning area of ​​the sprayed cleaning medium and make it a high-pressure fluid, and also make the cleaning medium flow along the outer surface of the door handle 3, so as to quickly remove stains, bacteria or viruses from the outer surface of the door handle 3 and ensure the health and safety of vehicle occupants. The stains may include the fingerprints of the occupants, mud or rainwater, etc.

[0088] In one alternative implementation, such as Figure 2 and Figure 10 As shown, two opposing walls are provided, namely a first wall 5 and a second wall 6, which are spaced apart, i.e., a certain gap is left between them. A nozzle structure 1 and a delivery channel 2 are provided or formed within this gap. The first wall 5 is the wall away from the outer surface of the door 4, and the second wall 6 is the wall close to the outer surface of the door 4. In this implementation, by providing two opposing walls and setting the nozzle structure 1 and delivery channel 2 within the gap between them, the flow of the cleaning medium can be prevented from damaging the door surface. It also facilitates adjustment of the spray angle of the cleaning medium and the design of the spray nozzle shape.

[0089] In another alternative implementation, such as Figure 11 and Figure 12 As shown, only one wall surface, namely the first wall surface 5, can be set. The first wall surface 5 and the outer surface of the car door 4 are spaced apart, and a certain gap is left between the first wall surface 5 and the outer surface of the car door 4. The nozzle structure 1 and the delivery channel 2 are set or formed in the gap. In this implementation, by setting only one wall surface and setting the nozzle structure 1 and the delivery channel 2 on the outer surface of the car door 4, the structure of the cleaning device for the car door handle can be simplified, and the cleaning medium sprayed from the spray end can be better adhered to or flow along the outer surface of the car door handle 3.

[0090] In some embodiments, in order to ensure that the cleaning medium ejected from the nozzle is a planar fluid, the nozzle outlet (or the end face from which the cleaning medium is ejected) of the nozzle has at least one of the following shapes:

[0091] Long and narrow;

[0092] Slit-like;

[0093] Slit-like;

[0094] linear;

[0095] fissure-like;

[0096] Elliptical slit shape;

[0097] Curved slit-like; and,

[0098] Wavy, slit-like.

[0099] By setting the end face of the nozzle from which the cleaning medium is sprayed to the shape described above, the nozzle structure is formed into a flat nozzle, ensuring that the sprayed cleaning medium is a surface fluid. By having the surface cleaning medium adhere to or flow along the outer surface of the door handle 3, the cleaning area can be increased, the cleaning efficiency can be improved, and the outer surface of the door handle 3 can be cleaned more effectively.

[0100] Furthermore, by designing the gradually expanding cavity 11 as a flat chamber, with the first end 111 of the gradually expanding cavity facing the second end 112 of the gradually expanding cavity, the diameter of the chamber of the gradually expanding cavity 11 gradually increases. Combined with setting the end face of the nozzle that sprays the cleaning medium to the above shape, it can better ensure that the nozzle sprays a surface, curtain, or screen-like cleaning medium, increasing the cleaning area and improving the cleaning efficiency.

[0101] Among them, "elongated" refers to the nozzle of the spraying end that emits the cleaning medium forming a rectangular structure, the length-to-width ratio of which is greater than a first proportional value; "slit-shaped" refers to the nozzle of the spraying end that emits the cleaning medium forming a finer rectangular structure, the length-to-width ratio of which is greater than a second proportional value; "narrow slit" refers to the nozzle of the spraying end that emits the cleaning medium forming an extremely fine rectangular structure, the length-to-width ratio of which is greater than a third proportional value; and "linear" refers to the nozzle of the spraying end that emits the cleaning medium forming a rectangular structure that is substantially nearly linear, the length-to-width ratio of which is greater than a fourth proportional value. The third proportional value is greater than the second proportional value, the second proportional value is greater than the first proportional value, and the fourth proportional value is greater than the third proportional value. For example, the third proportional value is 50, the second proportional value is 20, the first proportional value is 10, and the fourth proportional value is 100.

[0102] A slit-like shape refers to the nozzle outlet from which the cleaning medium is ejected forming an irregular slit shape, similar to a slit formed by tearing. The ratio of the length to the width of the circumscribed rectangle of the nozzle outlet is greater than the fifth ratio value, for example, the fifth ratio value is 30.

[0103] "Elliptical slit shape" refers to the nozzle of the spraying end that sprays out the cleaning medium in a finer elliptical shape, with the eccentricity of the ellipse being greater than a second preset value. For example, the second preset value can be 0.9.

[0104] The term "curved slit shape" refers to the shape of the nozzle from which the cleaning medium is ejected. The overall shape of the nozzle nozzle is curved, and the ratio of the length to the width of the circumscribed rectangle of the nozzle nozzle is greater than a second ratio value. For example, the second ratio value is 20.

[0105] The term "wavy slit shape" refers to the shape of the nozzle from which the cleaning medium is ejected. The overall shape of the nozzle nozzle is wavy, and the ratio of the length to the width of the circumscribed rectangle of the nozzle nozzle is greater than a second ratio value. For example, the second ratio value is 20.

[0106] By setting the first, second, third, and fourth proportional values ​​mentioned above, the ratio between the length and width of the nozzle can be adjusted, which means that the thickness and width of the surface or air curtain cleaning medium sprayed from the nozzle can be adjusted.

[0107] It should also be noted that, since the cleaning device for the car door handle includes at least one nozzle structure 1, that is, at least one spray end, when there are two or more nozzle structures 1, the shape of the nozzle outlet of the two or more nozzle structures 1 that sprays the cleaning medium can be the same or different. For example, when there are three nozzle structures 1, the nozzle outlet of the spray end of each nozzle structure 1 can be a long strip or a slit. For another example, when there are three nozzle structures 1, the nozzle outlet of one nozzle structure 1 is a long strip, the nozzle outlet of another nozzle structure 1 is a slit, and the nozzle outlet of the remaining nozzle structure 1 is an elliptical slit.

[0108] Figure 13 and Figure 14 This is a schematic diagram of the nozzle structure 1 provided by this utility model. In some embodiments, such as... Figure 13 and Figure 14 As shown, the expanding cavity 11 and the conveying channel 2 form an angle, the angle being between 45° and 90°.

[0109] By designing an angle between the expanding cavity 11 and the conveying channel 2, the cleaning medium can be slowed down when it flows through the bend where the conveying channel 2 connects to the expanding cavity 11, effectively reducing the pressure of the cleaning medium and ensuring that the surface fluid is ejected from the ejection end.

[0110] It is understandable that the angle formed by the expanding cavity 11 and the conveying channel 2 is the angle between the first direction and the second direction. The first direction is the direction in which the conveying channel 2 conveys the cleaning medium to the first end 111 of the expanding cavity, and the second direction is the direction in which the edge of the first end 111 of the expanding cavity conveys the cleaning medium into the expanding cavity 11.

[0111] Preferably, the included angle is 90°, as this provides the best deceleration (or pressure reduction) effect on the cleaning medium.

[0112] By designing the expanding cavity 11 as a flat chamber, with the first end 111 of the expanding cavity facing the second end 112 of the expanding cavity, the diameter of the expanding cavity 11 gradually increases. Combined with setting the end face of the nozzle that sprays the cleaning medium into the above-mentioned shape (including at least one of the following shapes: strip-shaped, slit-shaped, narrow slit-shaped, linear, fissure-shaped, elliptical slit-shaped, curved slit-shaped, and wavy slit-shaped), and designing the expanding cavity 11 to form an angle with the conveying channel 2, it is possible to better ensure that the nozzle sprays a surface-shaped, curtain-shaped, or screen-shaped cleaning medium, thereby increasing the cleaning area and improving the cleaning efficiency.

[0113] In one alternative implementation, the cross-section of the expanding cavity is designed as a trapezoidal structure, the angle between the expanding cavity 11 and the conveying channel 2 is 90°, the end face of the nozzle from which the cleaning medium is ejected is slit-shaped, the conveying channel 2 inputs the cleaning medium into the expanding cavity 11 through the first end 111 of the expanding cavity, the cleaning medium is decelerated at the bend where the conveying channel 2 connects with the expanding cavity 11, and then flows to the nozzle of the expanding cavity 11, where it is ejected as a surface fluid through the slit-shaped nozzle to clean the outer surface of the door handle 3.

[0114] In an optional embodiment, a flow splitting structure is provided inside the expanding cavity 11.

[0115] The function of this diversion structure is to divert the cleaning medium in the expanding cavity 11 to ensure that the cleaning medium ejected through the ejection end is a surface fluid.

[0116] It should be noted that the direction of the flow diversion structure is perpendicular to or intersects with the flow direction of the cleaning medium in the gradually expanding cavity 11, and in order to ensure the diversion effect of the cleaning medium, the flow diversion structure is a fluid dispersion structure.

[0117] Preferably, the direction of the flow diversion structure is perpendicular to the flow direction of the cleaning medium in the expanding cavity 11.

[0118] In one alternative implementation, such as Figure 13 As shown, the flow splitting structure includes multiple flow splitting columns 113 spaced apart; the number of flow splitting columns 113 can be determined according to the size of the expanding cavity 11, that is, the larger the size of the expanding cavity 11, the more flow splitting columns there are.

[0119] A diversion channel is formed between two adjacent diversion columns 113, and the cleaning medium is diverted to the ejection end through the diversion channel.

[0120] The size of the diversion channel can be determined based on the size of the expanding cavity 11 and the number of diversion columns 113.

[0121] Preferably, the dimensions of the diversion channels formed between any two adjacent diversion columns 113 are as equal as possible to ensure uniform diversion of the cleaning medium.

[0122] In this configuration, the first end 1131 of each diversion column extends into the interior of the diffuser 11, and the second end 1132 of the diversion column extends to the end face near the ejection end, so that the output end of the diversion channel can be as close as possible to or flush with the end face of the ejection end. The extension direction of each diversion column 113 is perpendicular to or intersects with the flow direction of the cleaning medium in the diffuser 11. Preferably, the extension direction of each diversion column 113 is perpendicular to the flow direction of the cleaning medium in the diffuser 11.

[0123] The fact that the second end 1132 of the diverter extends to the end face near the ejection end can be understood as the distance between the second end 1132 of the diverter and the end face of the ejection end being less than a preset distance, for example, the preset distance is 5mm.

[0124] After the cleaning medium enters the gradually expanding cavity 11 through the first end 111 of the gradually expanding cavity, the cleaning medium enters the diversion channel and flows to the ejection end through the diversion channel.

[0125] By setting a diversion column 113 in the gradually expanding cavity 11, and dividing the diversion channel by the diversion column 113, the cleaning medium in the gradually expanding cavity 11 can be uniformly diverted, ensuring that the cleaning medium sprayed from the spray end is a surface fluid, so that the cleaning medium can adhere to or flow along the outer surface of the door handle 3. Figure 13 The arrow shown indicates the flow direction of the cleaning medium.

[0126] In this optional implementation, multiple diverter columns 113 can be connected to form a fixed, integrated structure. In this case, two edge diverter columns 113 can be fixed within the expanding cavity 11, thus achieving the installation of multiple diverter columns 113. Furthermore, the diverter columns 113 can be detachably installed within the expanding cavity 11. This installation method is simple and facilitates adjustment of the size of the diversion channel formed between any two adjacent diverter columns 113. Alternatively, instead of connecting the multiple diverter columns 113, each diverter column 113 can be installed individually within the expanding cavity 11. This installation method allows for individual replacement of each damaged diverter column, saving tooling materials.

[0127] Furthermore, a flow-diverting channel is formed between the first flow-diverting column and the corresponding side wall of the gradually expanding cavity; wherein, the first flow-diverting column is the flow-diverting column 113 located at the edge among a plurality of spaced-apart flow-diverting columns 113.

[0128] In the case that the first diversion column 113 located at the edge of the multiple spaced diversion columns 113 does not fit against the side wall of the expansion cavity, the gap between the first diversion column and the side wall of its corresponding expansion cavity also forms a diversion channel, which is used to divert the cleaning medium.

[0129] The side wall of the gradually expanding cavity corresponding to the first diverter column can be understood as the first diverter column being set close to a certain part of the inner wall of the gradually expanding cavity. This part is located between the top wall and the bottom wall of the gradually expanding cavity, and this part is the side wall of the gradually expanding cavity corresponding to the first diverter column.

[0130] It should be noted that since the expanding cavity is a flat chamber, a row of spaced-apart diversion columns 113 is provided, so there are two first diversion columns. The two first diversion columns are arranged opposite each other, and the side walls of the expanding cavity corresponding to the two first diversion columns are also opposite each other.

[0131] Optionally, the diversion column 113 can be made of rubber or stainless steel to prevent it from rusting in an environment where the cleaning medium is wet, thereby improving its service life.

[0132] In one alternative implementation, such as Figure 14 As shown, the diversion structure includes multiple diversion pipes 114; the number of diversion pipes 114 can be determined according to the size of the expanding cavity 11, that is, the larger the size of the expanding cavity 11, the more diversion pipes 114 there are.

[0133] The first end 1141 of the diversion pipe extends into the interior of the gradually expanding cavity 11, and the second end 1142 of the diversion pipe extends into the ejection end; the cleaning medium enters the diversion pipe 114 from the first end 1141 of the diversion pipe, and is diverted from the second end 1142 of the diversion pipe to the ejection end.

[0134] The extension of the second end 1142 of the diversion pipe to the ejection end can be understood as the second end 1142 of the diversion pipe being close to the end face of the ejection end, but not extending beyond the end face of the ejection end. The distance between the second end 1142 of the diversion pipe and the end face of the ejection end is less than a preset distance, for example, the preset distance is 5mm.

[0135] It is understood that in this implementation, the structure at the first end 1141 of the diversion pipe in the expanding cavity 11, except for the first end 1141 of the diversion pipe, is a closed structure or a sealed structure. That is, the cleaning medium can only enter the first end 1141 of the diversion pipe and enter the interior of the diversion pipe 114 from the first end 1141 of the diversion pipe. The sealing structure can be a solid sealing structure, where a portion of the gradually expanding cavity 11 is designed as a sealed solid, extending to the ejection end. Multiple diversion pipes 114 are opened inside the sealed solid, connecting the portion of the gradually expanding cavity 11 that is not part of the sealed solid to the ejection end. This allows the cleaning medium in the gradually expanding cavity 11 to enter the diversion pipe 114 through the first end 1141 and then be diverted to the ejection end from the second end 1142. Alternatively, the sealing structure can be a sealing plate that fits tightly against the inner wall of the gradually expanding cavity 11. The first end 1141 of the diversion pipe passes through the sealing plate, and the second end 1142 of the diversion pipe extends to the ejection end, allowing the cleaning medium in the gradually expanding cavity 11 to enter the diversion pipe 114 through the first end 1141 and then be diverted to the ejection end from the second end 1142.

[0136] After the cleaning medium enters the diffuser cavity 11 through the first end 111 of the diffuser cavity, the cleaning medium flows to the first end 1141 of the diversion pipe and then enters the diversion pipe 114, and flows to the ejection end through the second end 1142 of the diversion pipe.

[0137] By setting a diversion pipe 114 in the expansion cavity 11, the cleaning medium in the expansion cavity 11 can be uniformly diverted, ensuring that the cleaning medium sprayed from the spray end is a surface fluid that can adhere to or flow along the outer surface of the door handle 3. Figure 14 The arrow shown indicates the flow direction of the cleaning medium.

[0138] Preferably, the diameters of the multiple branch pipes 114 are the same to ensure uniform distribution of the cleaning medium. The specific value of the diameter of the branch pipe 114 can be determined according to the size of the expanding cavity 11, that is, the larger the size of the expanding cavity 11, the larger the diameter of the branch pipe 114.

[0139] In this optional implementation, multiple branch lines 114 can be connected to form a fixed, integrated structure. In this case, any one or two branch lines 114 can be connected to the inside of the expanding cavity 11 to achieve the installation of multiple branch lines 114. This installation method of the branch lines 114 is simple to operate. Alternatively, the multiple branch lines 114 can be installed separately in the expanding cavity 11 without connecting them. This installation method of the branch lines 114 facilitates individual replacement of each damaged branch line 114, saving tooling materials.

[0140] Optionally, the diversion pipe 114 can be made of rubber or stainless steel to prevent the cleaning medium from corroding the inner wall of the diversion pipe 114 and to improve the service life of the diversion pipe 114.

[0141] It should be noted that, since the expanding cavity is a flat chamber, a row of branch pipes 114 is installed.

[0142] In one optional implementation, the flow-diverting structure includes a flow-diverting plate; the flow-diverting plate is disposed perpendicular to the top wall and the bottom wall of the gradually expanding cavity 11, and the flow-diverting plate intersects with or is perpendicular to a first direction, wherein the first direction is the flow direction of the cleaning medium in the gradually expanding cavity 11;

[0143] The fact that the flow divider is set perpendicular to the top wall and bottom wall of the expanding cavity 11 can be understood as the top wall and bottom wall of the expanding cavity 11 being two opposite and parallel walls in the expanding cavity 11, and the plane on which the flow divider is set is perpendicular to the plane containing the top wall and bottom wall of the expanding cavity 11.

[0144] In addition, in order to ensure that the flow divider can divert the cleaning medium in the expansion cavity 11, the plane of the flow divider is perpendicular to or intersects with the flow direction of the cleaning medium in the expansion cavity. Preferably, the plane of the flow divider is perpendicular to the flow direction of the cleaning medium in the expansion cavity.

[0145] The flow divider is installed inside the diffuser cavity 11, near the nozzle end. It is understood that placing the flow divider near the nozzle end means that the distance between the flow divider and the nozzle end face is less than a preset distance, for example, 10mm.

[0146] The flow divider plate has multiple through holes; the cleaning medium is diverted to the ejection end through the through holes.

[0147] In this optional implementation, the edge of the diverter plate is sealed and fitted to the inner wall of the diffuser 11, and the cleaning medium in the diffuser 11 can only be diverted to the ejection end through the through hole.

[0148] The number of through holes on the manifold can be determined based on the size of the manifold or the size of the expanding cavity 11. That is, the larger the size of the manifold or the size of the expanding cavity 11, the more through holes can be opened on the manifold.

[0149] After the cleaning medium enters the gradually expanding cavity 11 through the first end, it flows to the ejection end after being diverted through the through holes on the diverter plate.

[0150] By setting a flow divider in the gradually expanding cavity 11, the cleaning medium in the gradually expanding cavity 11 can be evenly distributed, ensuring that the cleaning medium sprayed from the spray end is a surface fluid that can adhere to or flow along the outer surface of the door handle 3.

[0151] Furthermore, in this optional implementation, the shape of the through hole is not limited to a circle; it can also be a rectangle, an ellipse, or other shapes.

[0152] Preferably, in order to ensure uniform distribution of the cleaning medium, the size and shape of the multiple through holes are equal.

[0153] Alternatively, the diverter plate can be made of rubber or stainless steel to prevent it from rusting or corroding in environments where the cleaning medium is wet, thus extending its service life.

[0154] Furthermore, in the second direction, the diameter of the through hole gradually increases; wherein, the second direction is the direction in which the cleaning medium is ejected from the through hole.

[0155] By setting the orifice diameter to gradually enlarge in the direction of the sprayed cleaning medium, the cleaning medium, after being diverted through different orifices, can cross after spraying, thereby ensuring that the sprayed cleaning medium is a planar fluid. It should also be noted that, since the door handle cleaning device provided in this embodiment includes at least one nozzle structure 1, when there are two or more nozzle structures 1, the expanding cavity 11 of each nozzle structure 1 can be implemented using one of the three implementation methods described above. That is, the expanding cavity 11 of each nozzle structure 1 has the same structure. For example, if there are two nozzle structures 1, both expanding cavities 11 of the two nozzle structures 1 are provided with diversion pipes 114, or both expanding cavities 11 of the two nozzle structures 1 are provided with diversion columns 113; when there are two or more nozzle structures 1, the expanding cavity 11 of each nozzle structure 1... The expansion cavity 11 can be implemented using two or more of the three implementation methods mentioned above. That is, the expansion cavity 11 of each nozzle structure 1 can be the same or different. For example, when there are three nozzle structures 1, one nozzle structure 1 has a flow divider column 113 in its expansion cavity 11, another nozzle structure 1 has a flow divider pipe 114 in its expansion cavity 11, and the remaining nozzle structure 1 has a flow divider plate in its expansion cavity 11. Or, when there are three nozzle structures 1, two nozzle structures 1 have flow divider columns in their expansion cavities 11, and the other nozzle structure 1 has a flow divider pipe 114 in its expansion cavity 11.

[0156] In some embodiments, the outer surface of the door handle 3 is a rounded rectangular structure, and the edge of the rounded rectangular structure includes at least one curved segment 7 and at least one straight segment 8.

[0157] At least one ejector end is disposed along the curved segment 7, and / or at least one ejector end is disposed along the straight segment 8;

[0158] The arrangement of the spray nozzle along the curved segment 7 can be understood as the spray nozzle being positioned around the curved segment 7, meaning the distance between the nozzle outlet from which the cleaning medium is sprayed and the curved segment 7 is less than a preset distance, and the length of the nozzle outlet is the same as or substantially the same as the length of the curved segment 7. Similarly, the arrangement of the spray nozzle along the straight segment 8 can be understood as the spray nozzle being positioned around the straight segment 8, meaning the distance between the nozzle outlet from which the cleaning medium is sprayed and the straight segment 8 is less than a preset distance, and the length of the nozzle outlet is the same as or substantially the same as the length of the straight segment 8.

[0159] For example, if the cleaning device for the car door handle includes one nozzle structure 1, the spraying end of the nozzle structure 1 can be arranged along a curved segment 7 of the edge of the rounded rectangular structure; or, if the cleaning device for the car door handle includes one nozzle structure 1, the spraying end of the nozzle structure 1 can be arranged along a straight segment 8 of the edge of the rounded rectangular structure. As another example, if the cleaning device for the car door handle includes two nozzle structures 1, the spraying end of one nozzle structure 1 can be arranged along a curved segment 7 of the edge of the rounded rectangular structure, and the spraying end of the other nozzle structure 1 can be arranged along a straight segment 8 of the edge of the rounded rectangular structure. Yet another example, if the cleaning device for the car door handle includes three nozzle structures 1, the spraying ends of two nozzle structures 1 can be arranged along two curved segments 7 of the edge of the rounded rectangular structure respectively, and the spraying end of the other nozzle structure 1 can be arranged along a straight segment 8 of the edge of the rounded rectangular structure.

[0160] Specifically, when the nozzle end is set along the curved segment 7, the nozzle structure 1 is curved; when the nozzle end is set along the straight segment 8, the nozzle structure 1 is straight.

[0161] It should be noted that "curved" nozzle structure 1 can be understood as the overall shape of nozzle structure 1 being curved or arc-shaped, while "straight" nozzle structure 1 can be understood as the overall shape of nozzle structure 1 being straight.

[0162] When the nozzle end is set along the curve segment 7, the nozzle structure 1 to which the nozzle end belongs is curved, and the difference between the curvature of the nozzle structure 1 to which the nozzle end belongs and the curvature of the corresponding curve segment 7 is less than a preset value, that is, to ensure that the curvature of the nozzle structure 1 is basically consistent with the curvature of the corresponding curve segment 7, so as to ensure that the cleaning medium sprayed from the nozzle end of the nozzle structure 1 can better adhere to the outer surface of the door handle 3 and flow, thereby achieving the purpose of quickly removing stains from the outer surface of the door handle 3.

[0163] For example, such as Figure 4 or Figure 5 As shown, when the nozzle end is located to the left or right of the outer surface of the door handle 3, the nozzle end is set along the curved segment 7, and the overall shape of the nozzle structure 1 is arc-shaped or curved.

[0164] When the spray end is set along the straight segment 8, the nozzle structure 1 to which the spray end belongs is straight, so as to ensure that the cleaning medium sprayed from the spray end of the nozzle structure 1 can better adhere to the outer surface of the door handle 3 and flow, thereby achieving the purpose of quickly removing stains from the outer surface of the door handle 3.

[0165] For example, such as Figure 1 or Figure 3As shown, when the nozzle end is positioned above or below the outer surface of the door handle 3, the nozzle end is positioned along the straight segment 8, and the overall shape of the nozzle structure 1 is straight.

[0166] In one alternative implementation, the cleaning device for the door handle includes two nozzle structures 1. One nozzle structure 1 is located above the outer surface of the door handle 3. The overall shape of the nozzle structure 1 is straight, and the end face of the nozzle structure 1 from which the cleaning medium is sprayed is elongated. The other nozzle structure 1 is located to the left of the outer surface of the door handle 3. The overall shape of the nozzle structure 1 is curved, and the end face of the nozzle structure 1 from which the cleaning medium is sprayed is spindle-shaped.

[0167] In one alternative implementation, the cleaning device for the car door handle includes two nozzle structures 1. One nozzle structure 1 is located above the outer surface of the car door handle 3. The overall shape of the nozzle structure 1 is straight, and the cleaning medium sprayed from the nozzle structure 1 is parallel to the outer surface of the car door handle 3. The other nozzle structure 1 is located to the left of the outer surface of the car door handle 3. The overall shape of the nozzle structure 1 is curved, and the angle between the cleaning medium sprayed from the nozzle structure 1 and the outer surface of the car door handle 3 is 4°.

[0168] In some embodiments, considering the low ambient temperature in winter or other low-temperature weather, in order to achieve rapid decontamination of the outer surface of the door handle 3, a heating structure is provided in the expanding cavity 11 or the conveying channel 2. The heating structure is used to heat the cleaning medium so that the heated surface cleaning medium is sprayed out from the spraying end, thereby achieving efficient decontamination and rapid drying of the outer surface of the door handle 3.

[0169] The heating structure can be a mesh resistance wire or other components with heating function, and the heating structure can also be connected to a control structure, which is used to control the heating structure to start or stop heating the cleaning medium.

[0170] Preferably, the heating structure can be located near the end face of the nozzle from which the cleaning medium is ejected, so as to ensure that the cleaning medium ejected from the nozzle has a sufficient temperature.

[0171] The following describes the specific structure of the door handle cleaning device using a complete implementation method:

[0172] The cleaning device for the car door handle includes two nozzle structures 1, each connected to a conveying channel 2. The spraying end of one nozzle structure 1 is positioned above the outer surface of the car door handle 3. This nozzle structure 1 has a straight overall shape and an elongated end face. The angle between the diffuser 11 of this nozzle structure 1 and the conveying channel 2 is 90°. The cleaning medium sprayed from the spraying end is parallel to the outer surface of the car door handle 3. The spraying end of the other nozzle structure 1 is positioned to the left of the outer surface of the car door handle 3. This nozzle structure 1 has a curved overall shape and an elliptical end face. The angle between the diffuser 11 of this nozzle structure 1 and the conveying channel 2 is 90°. The angle between the cleaning medium sprayed from the spraying end and the outer surface of the car door handle 3 is 4°. Both nozzle structures 1 have a diversion pipe 114 within their diffuser 11 to divert the cleaning medium.

[0173] This utility model embodiment also provides a vehicle, including a cleaning device for the door handle as described in any of the above-mentioned embodiments.

[0174] The vehicle provided in this embodiment can clean the outer surface of the door handle using a cleaning device. The nozzle structure in the cleaning device includes a gradually expanding cavity and a medium pressurization structure. The cleaning medium sprayed from the nozzle end of the gradually expanding cavity is a surface fluid and a high-pressure fluid, which can increase the cleaning area of ​​the sprayed cleaning medium and improve the cleaning efficiency of the outer surface of the door handle. Furthermore, the cleaning of the outer surface of the door handle can be controlled simply by controlling whether the delivery channel delivers the cleaning medium into the gradually expanding cavity or whether the nozzle end sprays the cleaning medium. The control method and the cleaning method are simple and easy to operate.

[0175] It should be noted that the vehicle provided in this utility model embodiment is a vehicle that includes the door handle cleaning device described in any of the above claims. Therefore, all embodiments of the door handle cleaning device described above are applicable to this vehicle and can achieve the same or similar technical effects.

[0176] The above describes the preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this utility model, and these improvements and modifications are also within the protection scope of this utility model.

Claims

1. A cleaning device for car door handles, characterized in that, include: At least one nozzle structure, at least one delivery channel, and a medium pressurization structure; The medium pressurization structure is used to pressurize the cleaning medium and input the pressurized cleaning medium into the conveying channel; The nozzle structure includes a gradually expanding cavity, the first end of which is connected to the delivery channel. The delivery channel is used to input the cleaning medium into the gradually expanding cavity through the first end of the gradually expanding cavity. The second end of the gradually expanding cavity is the outlet end of the cleaning medium. The diameter of the first end of the gradually expanding cavity is smaller than the diameter of the second end of the gradually expanding cavity. The spray nozzle is positioned around the outer surface of the door handle, and the extension line of the direction in which the cleaning medium is sprayed from the spray nozzle is parallel or nearly parallel to the outer surface of the door handle; the cleaning medium sprayed through the spray nozzle is a planar fluid to remove dirt from the outer surface of the door handle.

2. The cleaning device for car door handles according to claim 1, characterized in that, The nozzle from which the cleaning medium is ejected has at least one of the following shapes: Long and narrow; Slit-like; Slit-like; linear; fissure-like; Elliptical slit shape; Curved slit-like; and Wavy, slit-like.

3. The cleaning device for car door handles according to claim 1, characterized in that, The expanding cavity and the conveying channel form an angle, the angle being between 45° and 90°.

4. The cleaning device for car door handles according to claim 1, characterized in that, A flow diversion structure is provided inside the gradually expanding cavity.

5. The cleaning device for a car door handle according to claim 4, characterized in that, The diversion structure includes multiple diversion columns arranged at intervals; A flow-diverting channel is formed between two adjacent flow-diverting columns; The cleaning medium is diverted to the ejection end via the diversion channel.

6. The cleaning device for a car door handle according to claim 5, characterized in that, A flow-diverting channel is formed between the first flow-diverting column and the corresponding side wall of the gradually expanding cavity; The first diversion column is the diversion column located at the edge of a plurality of diversion columns arranged at intervals.

7. The cleaning device for a car door handle according to any one of claims 4-6, characterized in that, The diversion structure includes multiple diversion pipes; The first end of the diversion pipe extends into the interior of the diffuser cavity, and the second end of the diversion pipe extends into the ejection end; the cleaning medium enters the diversion pipe from the first end of the diversion pipe and is diverted from the second end of the diversion pipe to the ejection end.

8. The cleaning device for a car door handle according to claim 1, characterized in that, The outer surface of the door handle is a rounded rectangular structure, and the edge of the rounded rectangular structure includes at least one curved segment and at least one straight segment. At least one ejector end is disposed along the curved segment, and / or at least one ejector end is disposed along the straight segment; Specifically, when the nozzle is set along the curved segment at the ejection end, the nozzle structure is curved; when it is set along the straight segment, the nozzle structure is straight.

9. The cleaning device for a car door handle according to any one of claims 1 to 6, characterized in that, A heating structure is provided inside the expanding cavity or the conveying channel, and the heating structure is used to heat the cleaning medium.

10. A vehicle, characterized in that, The cleaning device includes a door handle as described in any one of claims 1 to 9.

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