Camera for a conveyor belt scene

Abstract

An embodiment of the utility model provides a kind of camera device for conveying belt scene, including shell, the shell is formed into flat cuboid, lens window and light supplement lamp window are opened in the upper surface of shell, and the upper surface faces conveying belt;Camera head component, the camera head component is installed in the shell, and it is via the lens window shooting;Light supplement lamp component, the light supplement lamp component is installed in the shell, and it is via the light supplement lamp window exit light ray;Windshield wiper component, the windshield wiper component includes the windshield wiper that the upper surface is scraped;Water spraying component, the water spraying component includes the nozzle that water is sprayed towards the lens window and the light supplement lamp window;Wherein, the optical axis direction of camera head component is perpendicular to the extension direction of conveying belt, to gather the image information of conveying belt surface.

Description

Technical Field

[0001] This utility model relates to the field of detection devices, and in particular to a camera device for conveyor belt scenarios. Background Technology

[0002] A conveyor belt tear detection camera uses image information to detect tiny cracks on conveyor belts, identifying the risk of these cracks expanding and tearing the belt. Large conveyor belt systems are used in mining and port operations transporting large materials such as coal and ore. These environments typically generate a lot of dust and are prone to contamination, with large conveyor belts but limited installation space. Current conveyor belt tear detection devices are prone to dust accumulation in dusty environments, and most products lack cleaning functions. Even when cleaning is needed, it mainly involves dry wiping with a wiper, resulting in relatively poor cleaning and affecting image quality. Utility Model Content

[0003] To address the above technical issues, this utility model is a camera device for conveyor belt scenarios that adopts a flat design. It incorporates a combination of water spraying and wiper cleaning in areas prone to dust accumulation, such as the lens and fill light glass, making it easier to clean packaging and inspection results.

[0004] One embodiment of this utility model provides a camera device for a conveyor belt scene, comprising:

[0005] The housing is formed as a flat cuboid, with a lens window and a fill light window opened on the upper surface of the housing, the upper surface facing the conveyor belt;

[0006] A camera assembly, which is installed inside the housing and captures images through the lens window;

[0007] A fill light assembly, wherein the fill light assembly is installed inside the housing and emits light through the fill light window;

[0008] A windshield wiper assembly, the windshield wiper assembly including a wiper that swipes the upper surface;

[0009] A water spray assembly, the water spray assembly including nozzles that spray water toward the lens window and the fill light window;

[0010] The optical axis of the camera assembly is perpendicular to the extension direction of the conveyor belt, so as to acquire image information of the surface of the conveyor belt.

[0011] In one embodiment, the housing includes:

[0012] The upper shell and the lower shell are joined together to form a hollow cavity, and the lens window and the fill light window are opened in the upper shell;

[0013] An outer cover, which is installed on the upper surface of the upper shell;

[0014] The windshield wipers and nozzles are concealed below the outer cover, while the lens window and the fill light window are exposed outside the outer cover.

[0015] There is a gap between the outer cover and the upper surface of the upper shell for the wiper to pass through.

[0016] In one embodiment, the hollow cavity includes:

[0017] The main cabin, in which the camera assembly and the fill light assembly are waterproofly encapsulated;

[0018] Wiper mechanism compartment, in which the wiper assembly is waterproofly encapsulated.

[0019] In one embodiment, the hollow cavity includes:

[0020] A pump compartment, in which the water pump for the water spray assembly is installed;

[0021] The pump chamber is filled with an isolation block that encloses the pump.

[0022] In one embodiment, it includes a camera assembly and at least two fill light assemblies, wherein the fill light window corresponds one-to-one with the fill light assembly;

[0023] The number of nozzles corresponds to the number of lens windows and the number of fill light windows.

[0024] In one embodiment, the water spray assembly includes a first water pump for the lens window and a second water pump for the fill light window;

[0025] The second water pump is connected to the nozzles of the supplementary lighting window via a splitter.

[0026] In one embodiment, the housing includes a drainage channel that extends downward from the upper surface of the housing toward the side surface of the housing, and the drainage channel extends in a direction away from the lens window and the fill light window;

[0027] The location of the drain groove corresponds to the start and end positions of the wiper's stroke.

[0028] In one embodiment, the nozzle is mounted on the inner surface of the outer casing.

[0029] The nozzle includes a first nozzle for the lens window and a second nozzle for the fill light window.

[0030] The first nozzle and the second nozzle have different tilt angles.

[0031] In one embodiment, a mounting bracket is included, the mounting bracket comprising:

[0032] A base plate, which is supported on a support surface located below the conveyor belt;

[0033] Mounting plate, the bottom edge of which is hinged to the base plate, the top edge of which is supported on the base plate via an adjusting plate, the angle between the mounting plate and the supporting surface corresponding to the connection position between the adjusting plate and the base plate;

[0034] The housing is supported by the mounting plate.

[0035] In one embodiment, the angle between the mounting plate and the supporting surface corresponds to the angle between the length direction of the housing and the supporting surface; or

[0036] The angle between the mounting plate and the supporting surface corresponds to the angle between the width direction of the housing and the supporting surface.

[0037] The camera device for conveyor belt scenarios in this embodiment is flat and its external structure mainly consists of an upper cover, a lower cover, and an outer casing. The upper cover is divided into two supplementary lighting areas and a lens area in the middle. It uses a water spray + wiper cleaning method. The areas that need to be cleaned are the two supplementary lighting areas and the lens area, which are equipped with three nozzles and one wiper. The wiper and nozzle pipes are located under the outer casing to protect them and reduce dust accumulation. Attached Figure Description

[0038] The following figures are for illustrative purposes only and do not limit the scope of the present invention.

[0039] Figure 1 This is a schematic diagram of the camera device of this utility model for use in conveyor belt scenarios.

[0040] Figure 2 This is a cross-sectional view of the camera device of this utility model used in conveyor belt scenarios.

[0041] Figure 3 This is a cross-sectional view of the camera device of this utility model used in conveyor belt scenarios.

[0042] Figure 4 This is a cross-sectional view of the camera device of this utility model used in conveyor belt scenarios.

[0043] Figure 5 This is a schematic diagram of the camera device of this utility model for use in conveyor belt scenarios.

[0044] Figure 6 This is a schematic diagram of the structure of the outer cover in this utility model.

[0045] Figure 7a and Figure 7b These are the AA and BB cross-sections in Figure 7.

[0046] Figure 8 This is a schematic diagram of the mounting bracket in this utility model.

[0047] Figure 9a and Figure 9b This is a schematic diagram showing the position of the mounting bracket in this utility model.

[0048] Figure 10a and Figure 10b This is a schematic diagram illustrating the usage status of the camera device of this utility model for conveyor belt scenarios. Detailed Implementation

[0049] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, specific embodiments of the present utility model are now described with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

[0050] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0051] To keep the drawings concise, only the parts related to this utility model are shown schematically in each drawing, and do not represent their actual structure as a product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0052] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0053] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0054] In this document, terms such as "equal" and "same" are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use. Unless otherwise stated, numerical ranges in this document include not only the entire range within its two endpoints, but also several subranges contained therein.

[0055] The exemplary embodiments will now be described more fully with reference to the accompanying drawings.

[0056] like Figures 1 to 3 As shown, one embodiment of this utility model provides a camera device for a conveyor belt scene, comprising:

[0057] The housing 10 is formed as a flat cuboid, and the lens window 11 and the fill light window 12 are opened on the upper surface of the housing 10, with the upper surface facing the conveyor belt.

[0058] Camera assembly 20 is installed inside housing 10 and captures images through lens window 11;

[0059] A fill light assembly 30 is installed inside the housing 10 and emits light through the fill light window 12;

[0060] Wiper assembly 40, which includes a wiper 41 that wipes the upper surface of the wiper;

[0061] The water spray assembly 50 includes nozzles 51 that spray water toward the lens window 11 and the fill light window 12;

[0062] The optical axis of the camera assembly 20 is perpendicular to the extension direction of the conveyor belt in order to collect image information of the surface of the conveyor belt.

[0063] The housing 10 includes:

[0064] The upper shell 10a and the lower shell 10b are joined together to form a hollow cavity. The lens window 11 and the fill light window 12 are opened in the upper shell 10a.

[0065] Outer cover 10c, the outer cover 10c is installed on the upper surface of the upper shell 10a;

[0066] Among them, the wiper 41 and the nozzle 51 are covered below the outer cover 10c, while the lens window 11 and the fill light window 12 are exposed outside the outer cover 10c.

[0067] There is a gap between the outer cover 10c and the upper surface of the upper shell 10a for the wiper 41 to pass through.

[0068] Camera devices for conveyor belt scenarios, such as Figure 1 As shown, it is flat in shape, and its external structure is mainly divided into an upper cover, a lower cover, and an outer cover. The upper cover is divided into two lighting areas and a lens area in the middle. It uses a water spray + wiper cleaning method. The areas that need to be cleaned are the two lighting areas and the lens area, which are designed with three nozzles and one wiper. The wiper and nozzle pipes are located under the outer cover to protect and reduce dust accumulation on the wipers and nozzles.

[0069] In one embodiment, the hollow cavity includes:

[0070] The main cabin 13, camera assembly 20 and fill light assembly 30 are waterproofly encapsulated within the main cabin 13;

[0071] The wiper mechanism compartment 14 and the wiper assembly 40 are waterproofly encapsulated within the wiper mechanism compartment 14.

[0072] Furthermore, the hollow cavity includes:

[0073] Pump compartment 15, where a water pump 52 for water spray assembly 50 is installed;

[0074] The pump compartment 15 is filled with an isolation block 151 that encloses the pump 52.

[0075] Because it uses a water-spray cleaning system, the camera is designed with waterproof and drainage structures. The product's interior is divided into four compartments, such as... Figure 2 The top cover shown comprises the main compartment, the wiper mechanism compartment, and two water pump compartments. The main compartment houses the supplementary lighting and lens, while the wiper mechanism compartment contains the main control and transmission mechanisms. Both of these compartments are waterproof and feature sealed gaskets for waterproofing. The water pump compartments themselves are not waterproof, but the water pumps inside are waterproofed, such as... Figure 3 As shown, the water pump is sandwiched between upper and lower silicone spacers 151 and pressed down by a pressure plate.

[0076] In one embodiment, it includes a camera assembly 20 and at least two fill light assemblies 30, with the fill light window 12 corresponding one-to-one with the fill light assembly 30;

[0077] The number of nozzles 51 corresponds to the number of lens windows 11 and fill light windows 12.

[0078] Correspondingly, the water spray assembly 50 includes a first water pump for the lens window 11 and a second water pump for the fill light window 12;

[0079] The second water pump is connected to the nozzle 51 of the supplementary lighting window 12 via a splitter.

[0080] The product has two pump compartments, each with one pump, but three nozzles. Therefore, one pump connects to two nozzles via a T-junction, and these two nozzles clean the two supplementary lights. The piping design uses multiple connectors to connect to the water pipes, which has the following advantages:

[0081] 1) The water pump is inside the cabin, and the direct pipe is perforated, which makes it easy for water and dust to enter.

[0082] 2) It facilitates control of the pipeline route and avoids bends, blockages, or interference with the windshield wipers.

[0083] 3) Contain multiple water pipes within the product's internal or external dimensions to prevent external cuts and damage, while maintaining an aesthetically pleasing and simple appearance.

[0084] like Figure 2 As shown, the product has a main water inlet connector on the outside. After passing through the external water inlet connector, the water path splits into two paths via a water pump inlet tee, connecting to water pump inlet connectors 1-1 and 2-1 respectively. These two connectors are located outside the product, corresponding to water pump inlet connectors 1-2 and 2-2 inside the water pump compartment. Water pump inlet connectors 1-2 and 2-2 then connect to the water pump via water pipes, thus splitting the external water path into two paths that flow through the water pump. Similarly, inside the water pump compartment are water pump outlet connectors 1 and 2. Water pump outlet connector 1 corresponds to the external water pump outlet tee connector, and water pump outlet connector 2 corresponds to the external water pump outlet connector. The two external connectors connect to water pipes and then to nozzles, creating three water outlet paths.

[0085] Preferably, the housing 10 includes a drainage channel 16, which extends downward from the upper surface of the housing 10 toward the side surface of the housing 10, and the drainage channel 16 extends in a direction away from the lens window 11 and the fill light window 12.

[0086] The position of the drain groove 16 corresponds to the start and end positions of the wiper 41's stroke.

[0087] In typical windshield washer fluid cleaning systems, the camera is usually installed at an angle downwards, allowing water to flow away naturally. However, the lens and lighting of the conveyor belt-mounted camera are normally installed upwards, preventing natural water flow. Therefore, a drainage channel is designed on the top cover, located on the side where the wiper is stopped. When the wiper rotates to its maximum position and returns to the stop position, it scrapes the clean, dirty water into the drainage channel, preventing it from being scraped back and causing secondary contamination of the glass. Figure 3 As shown, the bottom of the drainage trough is at a certain angle, and the drainage trough on the front is connected to the drainage outlet on the side (due to the water connection structure, the drainage outlet is divided into three sections), which can completely drain dirty water.

[0088] The lower cover and the upper cover have identical compartments, which, when combined, form the main compartment, the wiper mechanism compartment, and two water pump compartments, as shown below. Figure 4As shown. The water pump module is installed in the water pump compartment of the lower cover, while the lens module and various main control boards are installed in the main compartment of the lower cover. Since the modules in each compartment require electronic wiring for control, wiring holes are designed in each compartment to avoid compromising the airtightness of the main compartment and the wiper compartment. The electronic wires from the two water pump compartments and the wiper compartment pass through their respective wiring holes and converge into the wiring hole 141 of the main compartment. In addition, an airtightness detection hole is designed in both the sealed wiper mechanism compartment and the main compartment to detect airtightness separately, avoiding the inability to determine which compartment has a leak when tested together. On the back of the lower cover, the area formed by the wiring hole 141 and the airtightness detection hole is used to conceal the electronic wires, which are covered by a wire channel decorative cover 142. Furthermore, an external interface is designed on the back of the lower cover, with the main cable designed on the side for powering on and debugging the product. The interface is sealed with an interface cover 143 and a sealing ring, and the external cable is sealed with adhesive 144.

[0089] Specifically, such as Figure 4 As shown, the electronic wire (not shown in the diagram) passes through the wire hole 141. First, most of the gap is filled with a silicone plug 145. Then, a sealing ring is applied to the area 144. This allows the electronic wire to bypass the sealing rings of the two compartments, ensuring a tight seal. The electronic wire is located outside the outer compartment, and a wire-concealing groove 146 is designed, such as... Figure 5 As shown, the wire groove decorative cover 142 is used for concealment.

[0090] The nozzle 51 is installed on the inner surface of the outer cover 10c.

[0091] Nozzle 51 includes a first nozzle 511 for lens window 11 and a second nozzle 512 for fill light window 12.

[0092] The first nozzle 511 and the second nozzle 512 have different inclination angles.

[0093] The nozzles are designed on the outer casing assembly, and the water pipes are also restricted in their routing by the outer casing structure, such as... Figure 6 Illustration. Because the lens window size and the fill light window size are different, the corresponding nozzle spray directions are different, and the installation angles of the nozzles on the outer casing are also different, such as... Figure 7a and Figure 7b As shown.

[0094] In one embodiment, a mounting bracket 60 is included, the mounting bracket 60 comprising:

[0095] The base plate 61 is supported on a support surface located below the conveyor belt;

[0096] Mounting plate 62, the bottom edge of mounting plate 62 is hinged to base plate 61, and the top edge of mounting plate 62 is supported on base plate 61 via adjusting plate 63. The angle between mounting plate 62 and the supporting surface corresponds to the connection position between adjusting plate 63 and base plate 61.

[0097] The housing 10 is supported by the mounting plate 62.

[0098] Wherein, the angle between the mounting plate 62 and the supporting surface corresponds to the angle between the length direction of the housing 10 and the supporting surface; or

[0099] The angle between the mounting plate 62 and the supporting surface corresponds to the angle between the width direction of the housing 10 and the supporting surface.

[0100] The side idlers of the conveyor belt transport device are angled at a certain angle, and the angle is variable. When it is necessary to inspect the lateral conveyor belt section, the lens also needs to be directly facing the conveyor belt plane. Therefore, the camera needs to be installed at the same angle as the idlers. Thus, an adjustable angle bracket was designed, such as... Figure 8 As shown, the bracket mainly consists of a mounting plate, an adjustment plate, and a base plate. The mounting plate is used to mount the camera, the adjustment plate is used to adjust the mounting angle, and the base plate is used to fix it to the platform in the actual scene.

[0101] like Figure 8 and Figure 9b As shown, the mounting plate 62 has two sets of three mounting threaded holes on its mounting surface to the camera. In this example, rivet nuts are used, but welding nuts or other processes can also be used. Two adjustment holes are designed on each of the two sides, corresponding to adjustment screws 2 and 3.

[0102] base plate Figure 8 As shown, the bottom surface has four mounting holes for connecting and installing with other platforms or brackets in the scene. Each side has eight angle limiting holes, corresponding to the installation of adjusting screws 1. Every two holes are spaced 5° apart, corresponding to limiting angle values ​​from 45° to 10° from left to right. Each side also has one adjusting threaded hole, corresponding to the installation of adjusting screws 3.

[0103] Adjustment plate 63 Figure 8 and Figure 9b As shown, each of the two sides is designed with two adjusting threaded holes, where adjusting threaded hole 1 corresponds to the installation of adjusting screw 2, and adjusting threaded hole 2 corresponds to the installation of adjusting screw 3.

[0104] When adjusting the bracket angle, loosen adjusting screws 2 and 3, loosen and remove adjusting screw 1, rotate the adjusting plate until its adjusting threaded hole 2 aligns with the required angle limiting hole. At this time, the adjusting plate will rotate around adjusting screw 2, and the mounting plate will rotate around adjusting screw 3. Finally, tighten adjusting screws 1, 2, and 3. Figure 9a and Figure 9b As shown, the installation angles are 10° and 45°.

[0105] The camera is connected to the bracket using an L-shaped bracket 70, one on each side of the camera. One side of the L-shaped bracket 70 connects to the mounting hole on the side of the camera's top cover, and the other side connects to the mounting hole on the mounting plate 62 of the mounting bracket. After installation, the entire assembly looks like... Figure 10a As shown. The L-shaped bracket 70 has three mounting holes 71 on its mounting surface with the camera, including two circular arc-shaped holes 711 on either side. The camera and L-shaped bracket can be adjusted at a certain angle in the T-direction. Due to the limited internal installation space of the conveyor belt transport equipment and the requirement for a direct image view, the angle adjustment is small; in this case, it is designed to be 5°. This design facilitates drainage during specific construction adjustments and when the camera is at a certain angle. A large circular arc groove 72 is designed on the mounting surface of the L-shaped bracket 70 and mounting bracket 60 for adjusting the P-direction angle, also facilitating small-range adjustments during construction. The installation status of the conveyor belt detection system in the inclined idler area is as follows. Figure 10b As shown.

[0106] As can be seen from the above technical solutions, the conveyor belt detection device in this embodiment has the following characteristics:

[0107] 1) The overall cleaning solution for windshield washer fluid, with a drainage channel design to reduce secondary pollution, and a 2 (water pump) to 3 (nozzle) water supply and pipeline layout scheme to effectively utilize the internal structural space of the camera, ensuring both cleaning effect and the camera's waterproof performance.

[0108] 2) The overall flat design can adapt to conveyor devices with various conveyor belt specifications and sizes.

[0109] 3) The adjustable bracket design can quickly adapt to the installation requirements of different roller angles, reducing actual construction costs.

[0110] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementation methods or modifications made without departing from the spirit of the present utility model, such as combinations, divisions or repetitions of features, should be included within the scope of protection of this utility model.

Claims

1. A camera device for conveyor belt scenarios, characterized in that, include: The housing (10) is formed as a flat cuboid, and a lens window (11) and a fill light window (12) are opened on the upper surface of the housing (10), which faces the conveyor belt; A camera assembly (20) is installed inside the housing (10) and captures images through the lens window (11); A fill light assembly (30) is installed inside the housing (10) and emits light through the fill light window (12); Wiper assembly (40), the wiper assembly (40) including a wiper (41) for wiping the upper surface; Water spray assembly (50), the water spray assembly (50) includes nozzles (51) that spray water toward the lens window (11) and the fill light window (12); The optical axis of the camera assembly (20) is perpendicular to the extension direction of the conveyor belt, so as to collect image information of the surface of the conveyor belt; The housing (10) includes a drain channel (16) that extends downward from the upper surface of the housing (10) toward the side surface of the housing (10).

2. The camera device for conveyor belt scenarios according to claim 1, characterized in that, The housing (10) includes: The upper shell (10a) and the lower shell (10b) are joined together to form a hollow cavity. The lens window (11) and the fill light window (12) are opened on the upper shell (10a). Outer cover (10c), the outer cover (10c) is installed on the upper surface of the upper shell (10a); The windshield wiper (41) and the nozzle (51) are concealed below the cover (10c), while the lens window (11) and the fill light window (12) are exposed outside the cover (10c). There is a gap between the outer cover (10c) and the upper surface of the upper shell (10a) for the wiper (41) to pass through.

3. The camera device for conveyor belt scenarios according to claim 1, characterized in that, The drain trough (16) extends in a direction away from the lens window (11) and the fill light window (12); The position of the drain groove (16) corresponds to the start and end positions of the wiper (41) stroke.

4. The camera device for conveyor belt scenarios according to claim 1, characterized in that, Includes a mounting bracket (60), said mounting bracket (60) comprising: A base plate (61) is supported on a support surface located below the conveyor belt; Mounting plate (62), the bottom edge of which is hinged to the base plate (61), the top edge of which is supported on the base plate (61) via adjusting plate (63), the angle between the mounting plate (62) and the supporting surface corresponds to the connection position between the adjusting plate (63) and the base plate (61). The housing (10) is supported by the mounting plate (62).

5. The camera device for conveyor belt scenarios according to claim 4, characterized in that, The angle between the mounting plate (62) and the supporting surface corresponds to the angle between the length direction of the housing (10) and the supporting surface.

6. The camera device for conveyor belt scenarios according to claim 2, characterized in that, The hollow cavity includes: The main cabin (13) is in which the camera assembly (20) and the fill light assembly (30) are waterproofly encapsulated. Wiper mechanism compartment (14), in which the wiper assembly (40) is waterproofly encapsulated.

7. The camera device for conveyor belt scenarios according to claim 2, characterized in that, The hollow cavity includes: Pump compartment (15), in which the water pump (52) for the water spray assembly (50) is installed; The pump chamber (15) is filled with an isolation block (151) that encloses the pump (52).

8. The camera device for conveyor belt scenarios according to claim 1, characterized in that, It includes a camera assembly (20) and at least two fill light assemblies (30), wherein the fill light window (12) corresponds one-to-one with the fill light assembly (30); The number of nozzles (51) corresponds to the number of lens windows (11) and fill light windows (12).

9. The camera device for a conveyor belt scene according to claim 8, characterized in that, The water spray assembly (50) includes a first water pump for the lens window (11) and a second water pump for the fill light window (12); The second water pump is connected to the nozzle (51) of the supplementary light window (12) via a splitter.

10. The camera device for conveyor belt scenarios according to claim 2, characterized in that, The nozzle (51) is mounted on the inner surface of the outer cover (10c). The nozzle (51) includes a first nozzle (511) for the lens window (11) and a second nozzle (512) for the fill light window (12). The first nozzle (511) and the second nozzle (512) have different inclination angles.

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