Lens cleaning device

Abstract

The utility model discloses a lens cleaning device. The lens cleaning device comprises a bearing body; the image acquisition lens is arranged on the bearing body; the cleaning spray head is arranged on the bearing body, the nozzle direction of the cleaning spray head points to the image acquisition lens, and the cleaning spray head is used for carrying out liquid washing and / or gas purging on the image acquisition lens; the cleaning module comprises a liquid pump and an air pump, the liquid pump supplies liquid to the corresponding cleaning nozzles through a liquid path, and the air pump supplies air to the corresponding cleaning nozzles through an air path. According to the utility model, the image acquisition lens can be cleaned, and images acquired by the image acquisition lens are ensured to be clear and visible. Meanwhile, the camera module is simple in structure, low in cost and compatible with an existing camera module.

Description

Technical Field

[0001] The utility model relates to the technical field of image acquisition, in particular to a lens cleaning device. Background Art

[0002] With the development of science and technology, image acquisition is being used more and more widely. Among them, teleoperation is a widely used technology. Teleoperation is a remote control technology that replaces direct human operation. It is generally used in harsh working environments, such as mines, where there is high temperature, high humidity, and high dust. A key link in teleoperation is image acquisition. The captured images are transmitted to a remote operation center, which then sends commands to control the remote equipment. The clarity of the captured images can greatly affect the accuracy of teleoperation. In dusty environments, dust will inevitably adhere to the lens of the image acquisition equipment after a period of operation, making remote operation difficult.

[0003] Furthermore, if combined with stereoscopic display, the acquisition end collects left and right eye signals, which requires two cameras. Not only must the image captured by a single camera be clear and visible, but the synchronization of the images of the two cameras must also be guaranteed to a certain extent. Only in this way can the synthesized stereoscopic display signal display the correct depth information, thereby making the positioning operation more accurate and allowing the operator to avoid feeling dizzy.

[0004] Therefore, it is very important to ensure that the lens of the image acquisition device is always kept clean, so it is necessary to design a lens cleaning device for the image acquisition device. Summary of the Invention

[0005] Purpose of the invention: In view of the above-mentioned shortcomings, the utility model provides a lens cleaning device, which can clean the image acquisition lens to ensure that the image captured by the image acquisition lens is clear and visible.

[0006] Technical solution: The utility model provides a lens cleaning device, comprising:

[0007] carrier;

[0008] An image acquisition lens is provided on the carrier;

[0009] a cleaning nozzle, disposed on the carrier, with its nozzle directed toward the image acquisition lens, for flushing the image acquisition lens with liquid and / or purging with gas;

[0010] The cleaning module includes a liquid pump and an air pump. The liquid pump supplies liquid to the corresponding cleaning nozzle through a liquid path, and the air pump supplies gas to the corresponding cleaning nozzle through an air path.

[0011] Specifically, the carrier is of an integrated design or a split design;

[0012] The split design is specifically as follows:

[0013] The carrier includes a lens bracket for mounting the image acquisition lens and a nozzle bracket for mounting the cleaning nozzle.

[0014] More specifically, there are two image acquisition lenses, which are arranged on the carrier to form a binocular camera.

[0015] Furthermore, a pair of cleaning nozzles is correspondingly provided for each of the image acquisition lenses. In each pair of the cleaning nozzles, one of the cleaning nozzles is used to perform liquid flushing on the image acquisition lens, and the other cleaning nozzle is used to perform gas purge on the image acquisition lens.

[0016] Furthermore, two pairs of the cleaning nozzles are arranged on the carrier at positions above or below the two image acquisition lenses;

[0017] Alternatively, the two pairs of cleaning nozzles are respectively arranged on the carrier at positions outside the two image acquisition lenses.

[0018] Furthermore, only a pair of cleaning nozzles are provided on the carrier, one of which is used for flushing the image acquisition lens with liquid, and the other is used for purging the image acquisition lens with gas;

[0019] Each of the cleaning nozzles is provided with two nozzles, and the directions of the nozzles are respectively directed to the two image acquisition lenses.

[0020] Furthermore, the two cleaning nozzles are arranged on the carrier at an upper side or a lower side of the two image acquisition lenses;

[0021] Alternatively, the two cleaning nozzles are respectively arranged on the carrier at the upper and lower sides of the two image acquisition lenses;

[0022] Alternatively, the two cleaning nozzles are arranged on the carrier between the two image acquisition lenses, and the distance between each cleaning nozzle and each image acquisition lens is the same.

[0023] Furthermore, a corresponding fixing groove is provided on the carrier at a position corresponding to the cleaning nozzle, the cleaning nozzle is installed in the fixing groove, a limiting groove is provided on the fixing groove, and a limiting block corresponding to the limiting groove is provided on the cleaning nozzle.

[0024] Furthermore, only one cleaning nozzle is arranged on the carrier, and the distance between the cleaning nozzle and the two image acquisition lenses is the same. Two nozzles are arranged on the cleaning nozzle, pointing to the two image acquisition lenses respectively. At the same time, the liquid path and water path of the cleaning module are merged and connected to the cleaning nozzle.

[0025] Specifically, a heat dissipation hole for dissipating heat from the image acquisition lens is provided on the carrier at the position of the image acquisition lens.

[0026] Beneficial effects: The utility model can clean the image acquisition lens, ensuring that the image captured by the image acquisition lens is clear and visible. At the same time, the utility model has a simple structure, low cost, and is compatible with existing camera modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the description of one or more embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic structural diagram of the cleaning module of the present invention;

[0029] Figure 2 This is a structural diagram of a lens cleaning assembly according to a first embodiment of the present invention;

[0030] Figure 3 This is an exploded view of the lens cleaning assembly according to the first embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the lens cleaning assembly according to the first embodiment of the present invention from another angle;

[0032] Figure 5 This is a schematic structural diagram of a lens cleaning device according to a first embodiment of the present invention;

[0033] Figure 6 This is a structural design diagram of the lens cleaning assembly in the second embodiment of the present utility model;

[0034] Figure 7 This is another structural design diagram of the lens cleaning assembly in the second embodiment of the present utility model;

[0035] Figure 8 This is a structural design diagram of the lens cleaning assembly in the third embodiment of the present utility model;

[0036] Figure 9 This is another structural design diagram of the lens cleaning assembly in the third embodiment of the present utility model;

[0037] Figure 10 for Figure 8 Front view of

[0038] Figure 11 This is a structural diagram of a lens cleaning assembly according to a fourth embodiment of the present invention;

[0039] Figure 12 This is a structural diagram of a lens cleaning assembly according to a fifth embodiment of the present invention;

[0040] Figure 13 This is an exploded view of the lens cleaning assembly of the fifth embodiment of the present invention;

[0041] Figure 14 This is a schematic diagram of the connection and cooperation between the cleaning module of the present invention and at least three lens cleaning components;

[0042] Figure 15 This is a schematic diagram of another connection and cooperation between the cleaning module of the present invention and at least three lens cleaning components.

[0043] In the figure, 10-lens bracket, 20-image acquisition lens, 30-lens cover, 40-cleaning nozzle, 50-nozzle bracket, 60-cleaning module, 70-control box;

[0044] 11-accommodation slot, 31-heat dissipation hole, 51-fixing slot, 52-slot, 53-limiting slot;

[0045] 61-air pump, 62-air outlet, 63-liquid pump, 64-liquid outlet, 65-filter, 66-washing chamber pot, 67-washing liquid injection port, 68-housing, 69-liquid separator valve. DETAILED DESCRIPTION

[0046] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0047] The lens cleaning device of the present invention includes a carrier, an image acquisition lens 20 arranged on the carrier, a cleaning nozzle 40 and a cleaning module 60, wherein the carrier, the image acquisition lens 20 arranged on the carrier and the cleaning nozzle 40 constitute a lens cleaning assembly, there are two image acquisition lenses 20, which are arranged on the carrier to form a binocular camera; the nozzle direction of the cleaning nozzle 40 points to the image acquisition lens 20, and can spray liquid and / or gas to perform liquid flushing and / or gas purging on the image acquisition lens 20. In the present invention, a heat dissipation hole is also provided on the carrier at the position of the image acquisition lens 20 to facilitate the heat dissipation of the image acquisition lens 20. The cleaning module 60 is as shown in FIG. Figure 1 As shown, it includes a liquid pump 63 and an air pump 61. The liquid pump 63 supplies liquid to the corresponding cleaning nozzle 40 through the liquid circuit to flush the image acquisition lens 20 with liquid. The air pump 61 supplies gas to the corresponding cleaning nozzle 40 through the gas circuit to purge the image acquisition lens 20 with gas. While cleaning the image acquisition lens 20, it can also cool the image acquisition lens; the cleaning module 60 is connected to the control box through power supply and control cables.

[0048] In the present invention, two accommodating grooves 11 for accommodating image acquisition lenses 20 are opened at corresponding positions on the carrier. The image acquisition lens 20 is installed in the accommodating grooves 11. The distance between the two grooves is 55mm-70mm, preferably 65mm, which is set according to the users of the mine.

[0049] Furthermore, when the image acquisition lens 20 is installed in the receiving groove 11, a lens cover 30 can be provided to cover the back of the image acquisition lens 20 to close the receiving groove 11; the aforementioned heat dissipation holes are opened on the lens cover 30.

[0050] Furthermore, the heat dissipation holes can be designed as special-shaped structures, so that they can become fool-proof designs during assembly, ensuring that there will be no errors in the installation.

[0051] In the present invention, a corresponding fixing groove 51 is provided on the carrier at a position corresponding to the cleaning nozzle 40 , and the cleaning nozzle 40 is installed in the fixing groove 51 .

[0052] In the present invention, the liquid pump 63 and the air pump 61 in the cleaning module 60 are both provided with a communication module, which can be remotely controlled; further, the communication protocol of the communication module can adopt a 485 serial port.

[0053] In the present invention, the air outlet 62 of the air pump 61 and the liquid outlet 64 of the liquid pump 63 are both provided with filters 65 to filter the gas and liquid passing through the liquid and gas paths to avoid affecting the life of the lens cleaning device while ensuring the cleaning effect.

[0054] In the present invention, the cleaning module 60 is further provided with a cleaning liquid pot 66 for storing cleaning liquid, which can be pumped out to the cleaning nozzle 40 by a liquid pump 63, thereby flushing and cleaning the image acquisition lens 20. Furthermore, the cleaning module 60 is further provided with a cleaning liquid injection port 67 for injecting cleaning liquid into the cleaning liquid pot 66.

[0055] In the present invention, a shell 68 is further provided outside the cleaning module 60. The shell 68 is made of carbon steel and has been treated to prevent rust.

[0056] In the present invention, the cleaning module 60 is also provided with an electrical interface, which can be connected to a power supply with a rated voltage of 12V and a rated power of 180w or more. Specifically, the control module and the aforementioned power supply are provided in the control box 70, and the control box is connected to the electrical interface of the cleaning module 60 through a power supply and control cable.

[0057] Example 1:

[0058] Reference Figure 2-5 In this embodiment, the carrier is designed to include a lens bracket 10 for installing the image acquisition lens 20 and a nozzle bracket 50 for installing the cleaning nozzle 40. Through the split design, the cleaning nozzle 40 can be installed on the existing image acquisition lens module, so that the utility model can be compatible with the existing image acquisition lens module.

[0059] In this embodiment, a pair of cleaning nozzles 40 may be correspondingly provided for each image acquisition lens 20 . In each pair of cleaning nozzles 40 , one cleaning nozzle 40 is used to perform liquid flushing on the image acquisition lens 20 , and the other cleaning nozzle 40 is used to perform gas purge on the image acquisition lens 20 .

[0060] Furthermore, in this embodiment, each pair of cleaning nozzles 40 may be designed to have the same distance from the corresponding image acquisition lenses 20 .

[0061] In this embodiment, the lens cover 30 and the nozzle bracket 50 are fixed to the lens bracket 10 by screws. Furthermore, the positions of the screw holes on the lens cover 30 and the nozzle bracket 50 are the same, and the two can be fixed with the same screw. Through such a design, the lens cover 30 and the nozzle bracket 50 can be fixed by screws at one time, thereby improving the assembly efficiency and ensuring the position accuracy of related components.

[0062] In this embodiment, a slot 52 is provided on the nozzle bracket 50 at a position corresponding to the image acquisition lens 20 to ensure heat dissipation of the image acquisition lens 20 .

[0063] Example 2:

[0064] Compared with the first embodiment, in this embodiment, the carrier is designed as an integrated structure, that is, the nozzle bracket 50 and the lens bracket 10 are integrated into an integrated structure, thereby reducing production costs, improving assembly accuracy, and further improving the use effect.

[0065] In this embodiment, when the carrier is designed as an integrated structure, the cleaning nozzle 40 can be set on the lens bracket 10 or on the nozzle bracket 50.

[0066] like Figure 6 As shown, two pairs of cleaning nozzles 40 can be set on the carrier and located above or below the two image acquisition lenses 20; Figure 7 As shown, two pairs of cleaning nozzles 40 can be respectively arranged on the carrier at the outer sides of the two image acquisition lenses 20.

[0067] Example 3:

[0068] Compared to the first and second embodiments, this embodiment only uses a pair of cleaning nozzles 40, one for flushing the image acquisition lens 20 with liquid, and the other for purging the image acquisition lens 20 with air. Each cleaning nozzle 40 has two nozzles, each directed toward the two image acquisition lenses 20. This design allows this embodiment to simultaneously flush the two image acquisition lenses 20 with liquid or purge with air.

[0069] like Figure 8 As shown, the two cleaning nozzles 40 can be arranged on the carrier at the upper side or lower side of the two image acquisition lenses 20; Figure 9 As shown, the two cleaning nozzles 40 can be respectively arranged on the carrier at the upper and lower sides of the two image acquisition lenses 20.

[0070] In order to ensure accuracy, in this embodiment, Figure 10 As shown, a limit groove 53 is provided on the fixing groove 51, and a corresponding limit block is provided on the cleaning nozzle 40, so that the cleaning nozzle 40 can be assembled more quickly at a fixed angle, thereby ensuring that the two cleaning nozzles 40 can be installed according to the designed angle, thereby ensuring that the nozzle directions on the cleaning nozzle 40 are respectively pointed to the two image acquisition lenses 20, which can ensure accuracy.

[0071] Example 4:

[0072] Reference Figure 11Compared with the third embodiment, in this embodiment, the two cleaning nozzles 40 are combined into one, that is, only one cleaning nozzle 40 is provided on the carrier, and the distance between the cleaning nozzle 40 and the two image acquisition lenses 20 is the same, and the directions of the two nozzles provided on the cleaning nozzle 40 are respectively directed to the two image acquisition lenses 20. At the same time, the liquid path and the water path of the cleaning module 60 are combined and connected to the cleaning nozzle 40. A one-way valve is provided at the air outlet 62 of the air pump 61 and the liquid outlet 64 of the liquid pump 63 of the cleaning module 60. The one-way valve is used to realize the switching between liquid spraying and air jetting of the cleaning nozzle 40, thereby further simplifying the structure. Liquid flushing and gas purging of the two image acquisition lenses 20 can be realized in sequence through one cleaning nozzle 40.

[0073] Embodiment 5:

[0074] Reference Figure 12 、 13 Compared with the third embodiment, in this embodiment, two cleaning nozzles 40 are arranged on the carrier between the two image acquisition lenses 20, and the distance between each cleaning nozzle 40 and each image acquisition lens 20 is the same.

[0075] Specifically, two fixing grooves 51 can be directly opened on the lens bracket 10 between the two image acquisition lenses 20 . The distance between each fixing groove 51 and the two image acquisition lenses 20 is the same, and each cleaning nozzle 40 is installed in a fixing groove 51 .

[0076] Example 6:

[0077] Reference Figure 14 The cleaning module of the present invention is connected to at least three lens cleaning components, wherein the air pump can supply air to the cleaning nozzles 40 used for gas purging in all lens cleaning components; generally, the pressure and water output of the liquid pump 63 are limited. In this embodiment, one liquid pump 63 can supply liquid to the nozzles of three cleaning nozzles 40 at most. If there are at least three cleaning nozzles 40 that spray liquid, a liquid separator valve 69 can be set at the liquid outlet of the liquid pump 63. The three cleaning nozzles 40 that spray liquid are grouped together, and each group is provided with a corresponding infusion pipeline. The infusion pipeline corresponding to each group is connected to the liquid separator valve 69, and is connected to the cleaning nozzles 40 that need liquid supply through the liquid separator valve 69, thereby achieving time-sharing liquid supply, and realizing that a single liquid pump 63 supplies liquid to multiple groups of cleaning nozzles 40. The figure shows an exemplary representation of two groups of cleaning nozzles 40.

[0078] Further, refer to Figure 15If there are at least three liquid-spraying cleaning nozzles 40, three liquid-spraying cleaning nozzles 40 can be grouped together according to the number of liquid-spraying cleaning nozzles 40, and each group is equipped with a corresponding water pump 63, that is, a corresponding number of liquid pumps 63 are additionally arranged in the cleaning module 60, and each liquid pump 63 supplies liquid to the liquid-spraying cleaning nozzles 40 through the corresponding liquid path. The figure shows an exemplary representation of two groups of cleaning nozzles 40.

[0079] Furthermore, in this embodiment, the pressure and liquid output of the liquid pump 63 can be increased or the liquid pipeline can be thickened. However, compared with increasing the pressure and liquid output of the liquid pump 63 or thickening the liquid pipeline, the aforementioned solution can effectively reduce the driving force of the liquid pump 63, thereby reducing costs.

[0080] The present invention adds a cleaning nozzle to the image acquisition lens module, which sequentially flushes the image acquisition lens with liquid and purges it with gas, thereby cleaning the image acquisition lens and ensuring that the image captured by the image acquisition lens is clear and visible. At the same time, the present invention has a simple structure, low cost, and is compatible with existing camera modules.

[0081] In the description of this specification, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0082] 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 technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0083] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A lens cleaning device, characterized in that: include: carrier; Two image acquisition lenses are arranged on the carrier to form a binocular camera; There is only one cleaning nozzle, which is arranged on the carrier, and is at the same distance from the two image acquisition lenses, and the nozzles arranged on it are respectively directed towards the two image acquisition lenses; The cleaning module comprises a liquid pump and an air pump. The liquid pump supplies liquid through a liquid path, and the air pump supplies gas through an air path. The liquid path and the water path are combined to connect with the cleaning nozzle.

2. The lens cleaning device according to claim 1, characterized in that: The carrier is of integrated design or split design; The split design is specifically as follows: The carrier includes a lens bracket for mounting the image acquisition lens and a nozzle bracket for mounting the cleaning nozzle.

3. The lens cleaning device according to claim 1, wherein: A corresponding fixing groove is provided on the carrier at a position corresponding to the cleaning nozzle, the cleaning nozzle is installed in the fixing groove, a limiting groove is provided on the fixing groove, and a limiting block corresponding to the limiting groove is provided on the cleaning nozzle.

4. The lens cleaning device according to claim 1, wherein: A heat dissipation hole for dissipating heat from the image acquisition lens is further provided on the carrier at the position of the image acquisition lens.

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