Cleaning device and photographing assembly

Abstract

The utility model relates to a kind of cleaning device and photographing assembly, including annular body, first flow passage is arranged in the annular body, the first flow passage extends along the circumference of the annular body, to have first end and second end, water inlet is provided on the outer wall of the annular body, the water inlet extends to the first end, the first flow passage at the first end The flow area of passage is greater than the flow area of passage of the first flow passage at the second end, the flow area of passage inside the first flow passage is S1 at the L1 position apart from the first end, satisfy: dS1 / dL1≤0;At least two water outlets are provided on the outer wall of the annular body, the water outlet is connected to the first flow passage, and the water outlet is sequentially spaced arrangement in the circumference of the first flow passage.

Description

Technical Field

[0001] This utility model relates to the field of lens cleaning, and in particular to a cleaning device and a shooting component. Background Technology

[0002] Cylindrical cameras are typically cleaned using a ring-shaped water pipe. This pipe has an inlet and multiple spray nozzles spaced along its circumference. Cleaning water enters the pipe through the inlet and flows to the spray nozzles, achieving a 360° cleaning process for the cylindrical camera.

[0003] In the above process, the cleaning water first reaches the nozzles closer to the inlet and is sprayed, and then flows to the nozzles farther from the inlet. It's easy to understand that, on the one hand, the process of the cleaning water flowing to the nozzles farther from the inlet requires significant water pressure; on the other hand, the act of spraying the cleaning water at the nozzles closer to the inlet consumes additional water pressure. Ultimately, this results in insufficient water supply to the nozzles farther from the inlet, leading to inadequate cleaning of the cylindrical camera portion farther from the inlet. Utility Model Content

[0004] Therefore, it is necessary to provide a cleaning device and shooting component to address the problem of poor local cleaning effect of cameras.

[0005] A cleaning device includes an annular body, a first flow channel is provided inside the annular body, the first flow channel extends circumferentially along the annular body to have a first end and a second end, a water inlet is provided on the outer wall of the annular body to extend to the first end, the conduction area of ​​the first flow channel at the first end is greater than the conduction area of ​​the first flow channel at the second end, and the conduction area inside the first flow channel at a distance L1 from the first end is S1, satisfying: dS1 / dL1≤0;

[0006] At least two water nozzles are provided on the outer wall of the annular body. The water nozzles are connected to the first flow channel and are arranged at intervals around the first flow channel.

[0007] In one embodiment, dS1 / dL1 < 0.

[0008] In one embodiment, there are two first flow channels, the first ends of both first flow channels are located at the inlet, and the two first flow channels extend in opposite directions on the annular body so that the second ends of the two first flow channels are connected.

[0009] In one embodiment, the area of ​​the m-th water nozzle is s. m The distance between the m-th water nozzle and the first end is d. m The area of ​​the nth water nozzle is s n The distance between the nth water nozzle and the first end is d. n When d m >d n At that time, s m ≤s n .

[0010] In one embodiment, when d m >d n At that time, s m <s n .

[0011] In one embodiment, the annular body is further provided with a second flow channel, the two ends of the second flow channel being connected to the first flow channel and the water nozzle respectively. The conduction area inside the second flow channel at a distance L2 from the water nozzle is S2, which satisfies dS2 / dL2≥0, and the conduction area at the connection between the second flow channel and the first flow channel is greater than the area of ​​the water nozzle.

[0012] In one embodiment, dS2 / dL2 > 0.

[0013] In one embodiment, the annular body is further provided with a third flow channel and a fourth flow channel. The first flow channel, the third flow channel, the fourth flow channel and the water nozzle are connected in sequence. The conduction area at the connection between the third flow channel and the fourth flow channel is smaller than the conduction area at the connection between the third flow channel and the first flow channel. The area of ​​the water nozzle is larger than the conduction area at the connection between the fourth flow channel and the third flow channel. The conduction area at a distance L3 from the water nozzle inside the third flow channel is S3, and the conduction area at a distance L4 from the water nozzle inside the fourth flow channel is S4, satisfying: dS3 / dL3≥0, dS4 / dL4≤0.

[0014] In one embodiment, the third flow channel satisfies dS3 / dL3 > 0, and / or the fourth flow channel satisfies dS4 / dL4 < 0.

[0015] A shooting assembly includes a mounting base, a lens cover, and a cleaning device, wherein the lens cover and the annular body are mounted on the mounting base, and the annular body is arranged around the lens cover.

[0016] The beneficial effects of this utility model are as follows:

[0017] By ensuring that the conduction area of ​​the first flow channel at the first end is greater than that at the second end, and by controlling the conduction area within the first flow channel at a distance L1 from the first end to be S1, satisfying the condition dS1 / dL1≤0, the conduction area of ​​the first flow channel is designed to either strictly decrease or not strictly decrease in the direction of water flow within the first flow channel. Based on Bernoulli's principle, this design effectively increases the water pressure at the second end, making it easier for the water flow at the first end to reach the nozzle near the second end.

[0018] Based on this, the cleaning device of this invention can effectively clean the part of the lens cover that is far from the water inlet when cleaning the lens cover. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the imaging component in Embodiment 1 of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the cleaning device in Embodiment 1 of this utility model. Figure 1 ;

[0021] Figure 3 This is a three-dimensional structural diagram of the cleaning device in Embodiment 1 of this utility model. Figure 2 ;

[0022] Figure 4 This is a schematic cross-sectional view of the cleaning device in Embodiment 1 of this utility model. Figure 1 ;

[0023] Figure 5 This is a schematic cross-sectional view of the cleaning device in Embodiment 1 of this utility model. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the parameters of the cleaning device in Embodiment 1 of this utility model;

[0025] Figure 7 for Figure 6 A magnified schematic diagram of the central part of the structure.

[0026] Figure label:

[0027] 1. Annular body; 2. First flow channel; 21. First end; 22. Second end; 3. Inlet; 4. Spray nozzle; 5. Third flow channel; 6. Fourth flow channel; 100. Mounting base; 200. Lens cover. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] Example 1:

[0035] This embodiment first provides a shooting component, including a mounting base 100, a lens cover 200, and a cleaning device.

[0036] See details Figure 2 and Figure 3 The cleaning device includes an annular body 1, with a water inlet 3 and at least two water spray nozzles 4 disposed on the outer wall of the annular body 1. The water spray nozzles 4 are distributed sequentially at intervals along the circumference of the annular body 1. Figure 1 As shown, both the lens cover 200 and the annular body 1 are mounted on the mounting base 100, and the annular body 1 is arranged around the lens cover 200. Thus, the water spray nozzles 4 on the annular body 1 can surround the lens cover 200 along the circumference of the lens cover 200, thereby cleaning the lens cover 200 over a wide area.

[0037] The cleaning process of the lens cover 200 by the cleaning device is roughly as follows: the cleaning water first enters the interior of the annular body 1 through the water inlet 3, and then flows to each spray nozzle 4 for spraying, thereby cleaning the lens cover 200.

[0038] like Figure 4 As shown, a first flow channel 2 is provided inside the annular body 1, extending circumferentially along the annular body 1. Correspondingly, the first flow channel 2 has a first end 21 and a second end 22. The inlet 3 extends to the first end 21, connecting the inlet 3 to the first end 21. Accordingly, the water flow direction within the first flow channel 2 is from the first end 21 to the second end 22.

[0039] For example, in this embodiment, the first flow channel 2 is semi-circular in shape and there are two of them. The first ends 21 of the two first flow channels 2 are located at the inlet 3 and are interconnected. The two first flow channels 2 extend in opposite directions on the annular body 1. Specifically, one first flow channel 2 extends in a clockwise direction and the other first flow channel 2 extends in a counterclockwise direction, so that the second ends 22 of the two first flow channels 2 are interconnected. Thus, in this embodiment, the two first flow channels 2 together form a complete annular flow channel.

[0040] Each first flow channel 2 is connected to at least two spray nozzles 4, and the inlet 3 is connected to at least one spray nozzle 4 through the first flow channel 2. It is understood that different spray nozzles 4 on the same first flow channel 2 have different distances from the first end 21. The greater the distance between the spray nozzle 4 and the first end 21 (in other words, the closer the spray nozzle 4 is to the second end 22), the greater the water pressure required for the water flow from the first end 21 to the spray nozzle 4. Furthermore, before reaching the second end 22, the water flow has already been sprayed at several spray nozzles 4 along its flow path, causing the water pressure to drop several times before reaching the second end 22. Based on these two reasons, it can be concluded that the closer the spray nozzle 4 is to the second end 22, the more severe the problem of insufficient water pressure it faces.

[0041] Based on the above problems, this embodiment designs the structure of the first flow channel 2 as follows: First, the conduction area of ​​the first flow channel 2 at the first end 21 is controlled to be greater than the conduction area of ​​the first flow channel 2 at the second end 22. Second, the conduction area of ​​the first flow channel 2 is controlled to satisfy dS1 / dL1≤0, where S1 represents the conduction area inside the first flow channel 2 at a distance L1 from the first end 21. In other words, in the direction of water flow within the first flow channel 2, the conduction area of ​​the first flow channel 2 is either strictly decreasing or not strictly decreasing. Based on Bernoulli's principle, this design can effectively increase the water pressure at the second end 22, thereby making it easier for the water flow at the first end 21 to reach the nozzle 4 near the second end 22, and thus enabling the lens cover 200 at the second end 22 to be effectively cleaned.

[0042] Preferably, the first flow channel 2 further satisfies: dS1 / dL1 < 0. That is, in the direction of water flow within the first flow channel 2, the conduction area of ​​the first flow channel 2 is designed to decrease strictly.

[0043] like Figure 6 and Figure 7 As shown, on a single first flow channel 2, the area of ​​the m-th nozzle 4 is s. m The distance between the m-th nozzle 4 and the first end 21 is d. m The area of ​​the nth water jet 4 is s nThe distance between the nth nozzle 4 and the first end 21 is d. n If d m >d n , then s m ≤s n Preferred, s m <s n .

[0044] In other words, the area of ​​the nozzle 4 farther from the first end 21 is smaller, and the area of ​​the nozzle 4 closer to the first end 21 is larger. Similarly, the area of ​​the nozzle 4 closer to the second end 22 is smaller, and the area of ​​the nozzle 4 farther from the second end 22 is larger. Based on Bernoulli's principle, this design can appropriately reduce the water pressure of the nozzles 4 near the first end 21, while appropriately increasing the water pressure of the nozzles 4 near the second end 22. This allows the water pressure at each nozzle 4 to be relatively balanced, resulting in a more uniform overall cleaning effect for the lens cover 200.

[0045] See further Figures 5-7 In this embodiment, the annular body 1 is further provided with a third flow channel 5 and a fourth flow channel 6, and the first flow channel 2, the third flow channel 5, the fourth flow channel 6 and the water nozzle 4 are connected in sequence. The third flow channel 5 and the fourth flow channel 6 are in a one-to-one correspondence, and the fourth flow channel 6 and the water nozzle 4 are in a one-to-one correspondence.

[0046] In the corresponding third flow channel 5, fourth flow channel 6, and nozzle 4, the conduction area at the connection between the third flow channel 5 and the fourth flow channel 6 is smaller than the conduction area at the connection between the third flow channel 5 and the first flow channel 2. The third flow channel 5 satisfies dS3 / dL3≥0, where S3 is the conduction area inside the third flow channel 5 at a distance L3 from the nozzle 4. In other words, in the direction of water flow within the third flow channel 5, the conduction area of ​​the third flow channel 5 is either strictly decreasing or not strictly decreasing. This design increases the water pressure within the third flow channel 5, prompting the water in the third flow channel 5 to flow towards the fourth flow channel 6.

[0047] Furthermore, in the corresponding third flow channel 5, fourth flow channel 6, and nozzle 4, the area of ​​nozzle 4 is larger than the conduction area at the connection between fourth flow channel 6 and third flow channel 5, while fourth flow channel 6 satisfies dS4 / dL4≤0. Here, S4 is the conduction area at a distance L4 from nozzle 4 within fourth flow channel 6. In other words, in the direction of water flow within fourth flow channel 6, the conduction area of ​​fourth flow channel 6 is either strictly increasing or not strictly increasing. This design allows the water jet from nozzle 4 to produce an atomization effect, increasing the cleaning range of lens cover 200.

[0048] Further preferably, the third flow channel 5 satisfies dS3 / dL3>0, and the fourth flow channel 6 satisfies dS4 / dL4<0. That is, in the direction of water flow, the conduction area of ​​the third flow channel 5 is strictly decreasing, and the conduction area of ​​the fourth flow channel 6 is strictly increasing.

[0049] Example 2:

[0050] The difference between this embodiment and Embodiment 1 is that a second flow channel is provided on the annular body 1, but a third flow channel 5 and a fourth flow channel 6 are not provided. The second flow channel and the water nozzle 4 are in a one-to-one correspondence, and the two ends of the second flow channel are respectively connected to the first flow channel 2 and the water nozzle 4.

[0051] In this design, the conductive area at the connection between the second flow channel and the first flow channel 2 is greater than the area of ​​the nozzle 4, and the second flow channel satisfies dS2 / dL2≥0. S2 is the conductive area inside the second flow channel at a distance L2 from the nozzle 4. In other words, in the direction of water flow within the second flow channel, the conductive area of ​​the second flow channel is designed to either strictly decrease or not strictly decrease, thus promoting the flow of water from the first flow channel 2 towards the nozzle 4.

[0052] Further optimization shows that the second flow channel satisfies: dS2 / dL2>0.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cleaning device, characterized in that, The device includes an annular body (1), in which a first flow channel (2) is provided. The first flow channel (2) extends circumferentially along the annular body (1) and has a first end (21) and a second end (22). An inlet (3) is provided on the outer wall of the annular body (1) and extends to the first end (21). The conduction area of ​​the first flow channel (2) at the first end (21) is greater than the conduction area of ​​the first flow channel (2) at the second end (22). The conduction area inside the first flow channel (2) at a distance L1 from the first end (21) is S1, which satisfies: dS1 / dL1≤0. At least two water nozzles (4) are provided on the outer wall of the annular body (1). The water nozzles (4) are connected to the first flow channel (2), and the water nozzles (4) are arranged in sequence at intervals around the first flow channel (2).

2. The cleaning device according to claim 1, characterized in that, dS1 / dL1 < 0.

3. The cleaning device according to claim 1, characterized in that, There are two first flow channels (2). The first ends (21) of the two first flow channels (2) are located at the inlet (3). The two first flow channels (2) extend in opposite directions on the annular body (1) so that the second ends (22) of the two first flow channels (2) are connected.

4. The cleaning device according to claim 1, characterized in that, The area of ​​the m-th water nozzle (4) is s m The distance between the m-th water nozzle (4) and the first end (21) is d. m The area of ​​the nth water nozzle (4) is s n The distance between the nth water nozzle (4) and the first end (21) is d. n When d m >d n At that time, s m ≤s n .

5. The cleaning device according to claim 4, characterized in that, When d m >d n At that time, s m <s n .

6. The cleaning apparatus according to claim 1, characterized in that, The annular body (1) is also provided with a second flow channel. The two ends of the second flow channel are respectively connected to the first flow channel (2) and the water nozzle (4). The conduction area at the position L2 away from the water nozzle (4) inside the second flow channel is S2, which satisfies dS2 / dL2≥0. Furthermore, the conduction area at the connection between the second flow channel and the first flow channel (2) is greater than the area of ​​the water nozzle (4).

7. The cleaning apparatus according to claim 6, characterized in that, dS2 / dL2>0.

8. The cleaning apparatus according to claim 1, characterized in that, The annular body (1) is also provided with a third flow channel (5) and a fourth flow channel (6). The first flow channel (2), the third flow channel (5), the fourth flow channel (6) and the nozzle (4) are connected in sequence. The conduction area at the connection between the third flow channel (5) and the fourth flow channel (6) is smaller than the conduction area at the connection between the third flow channel (5) and the first flow channel (2). The area of ​​the nozzle (4) is larger than the conduction area at the connection between the fourth flow channel (6) and the third flow channel (5). The conduction area at a distance L3 between the third flow channel (5) and the nozzle (4) is S3. The conduction area at a distance L4 between the fourth flow channel (6) and the nozzle (4) is S4. The following conditions are met: dS3 / dL3≥0, dS4 / dL4≤0.

9. The cleaning apparatus according to claim 8, characterized in that, The third flow channel (5) satisfies dS3 / dL3>0, and / or the fourth flow channel (6) satisfies dS4 / dL4<0.

10. A shooting component, characterized in that, The device includes a mounting base (100), a lens cover (200), and a cleaning device as described in any one of claims 1-9, wherein the lens cover (200) and the annular body (1) are mounted on the mounting base (100), and the annular body (1) is arranged around the lens cover (200).

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