Grain monitoring device and harvester

Abstract

The utility model discloses a grain monitoring device and a harvester, the grain monitoring device comprises a mounting shell and an image acquisition assembly, the mounting shell is erected on a grain elevator of the harvester and forms a mounting space with an image acquisition window, and the image acquisition window is located at one side of the mounting space close to a transmission surface of the grain elevator; the image acquisition assembly is arranged in the installation space and comprises a light source part and a high-speed camera, the light source part can emit visible light which illuminates an image acquisition window, a lens of the high-speed camera is arranged towards the image acquisition window, and the high-speed camera can move close to or away from the image acquisition window; according to the grain monitoring device, clear images of grains in a transportation state can be acquired, the image acquisition period is shortened, the timeliness of image analysis is improved, and the performance of the harvester can be judged more accurately and visually based on the acquired image information.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery and equipment, and particularly relates to a grain monitoring device and a harvester. Background Art

[0002] Trash content and breakage rate are important indicators for measuring the working quality of a harvester and are also important bases for adjusting the operating parameters of the harvester's working components. To monitor the trash content and breakage rate of grain grains in real time, it is necessary to obtain image information of the grains and use an image analysis system for analysis and judgment. The utility model patent 201820058732.X discloses a real-time monitoring device for the trash content and breakage rate of grains in a combine harvester's grain bin. This device can collect data on grain grains, but it requires a sampling mechanism to collect grain samples from the grain bin and transport them to a set location. The device then uses static video to process the data before transporting the sampled grains back to the bin. The entire cycle is long, and the intermittent sampling has a certain delay, making it impossible to accurately and intuitively judge the harvester's performance. Utility Model Content

[0003] In response to the above-mentioned defects or shortcomings, the present utility model provides a grain monitoring device and a harvester, aiming to solve the technical problem that the existing monitoring device needs to take samples before image acquisition, resulting in a long data processing cycle and an inability to accurately judge the performance of the harvester.

[0004] To achieve the above-mentioned purpose, the utility model provides a grain monitoring device, wherein the grain monitoring device includes a mounting shell and an image acquisition component, the mounting shell is mounted on the grain elevator of the harvester and forms an installation space with an image acquisition window, and the image acquisition window is located on the side of the installation space close to the transmission surface of the grain elevator; the image acquisition component is arranged in the installation space and includes a light source and a high-speed camera, the light source can emit visible light to illuminate the image acquisition window, the lens of the high-speed camera is set toward the image acquisition window, and the high-speed camera can move toward or away from the image acquisition window.

[0005] In an embodiment of the present utility model, the image acquisition component also includes a light source mounting seat located in the installation space, the light source mounting seat is mounted on a side periphery of the image acquisition window, the light source component is installed on the light source mounting seat, and the light emitting surface of the light source component is arranged toward the image acquisition window, and the high-speed camera is arranged directly opposite the image acquisition window.

[0006] In an embodiment of the present utility model, the light source mounting seat includes two mounting vertical plates arranged relatively spaced apart along the periphery of the image acquisition window, and angle adjustment holes are provided on both mounting vertical plates. The opposite ends of the light source component are respectively and one-to-one passed through the angle adjustment holes of the two mounting vertical plates, so that the angle of the light source component can be adjusted.

[0007] In an embodiment of the utility model, a rotating shaft and an adjustment shaft are provided at opposite ends of the light source component, and the adjustment shaft is provided on the upper side of the rotating shaft. The light source component is rotatably provided on the mounting vertical plate through the rotating shaft, and the adjustment shaft is passed through the angle adjustment hole, and the angle adjustment hole extends along a circle with the axis of the rotating shaft as the center of the circle.

[0008] In an embodiment of the present invention, the image acquisition component also includes a mounting stand located in the installation space, the mounting stand and the light source mounting seat are arranged on opposite sides of the image acquisition window, and the mounting stand includes a fixed column and a lifting block with adjustable height arranged on the fixed column, and the high-speed camera is arranged on the lifting block.

[0009] In an embodiment of the present invention, the seed monitoring device further includes a dustproof plate detachably placed in the image acquisition window, and the dustproof plate is made of a transparent material.

[0010] In an embodiment of the utility model, a step portion for overlapping the dustproof plate is formed on the side wall of the image acquisition window, and the grain monitoring device also includes a pressure plate, one end of the pressure plate is hinged to the periphery of one side of the image acquisition window, and the other end is used to be pressed on the dustproof plate.

[0011] In an embodiment of the utility model, the mounting shell includes a base plate, side panels and a cover plate that enclose an installation space. An image acquisition window is opened on the base plate. The side panels are arranged to enclose at least two sides of the base plate and have lateral notches formed on at least one side. The cover plate is detachably connected to the side panels and can cover the top and lateral notches of the installation space.

[0012] In an embodiment of the present invention, the bottom end of the side panel is bent inward to form a first connecting portion, and the bottom plate is placed on the first connecting portion and is detachably connected to the first connecting portion through fasteners.

[0013] In an embodiment of the present utility model, the side panel includes a first panel body and a second panel body, the first ends of the first panel body and the second panel body are spliced ​​along the first side edge of the bottom plate, the second ends of the first panel body and the second panel body are respectively bent and extended along the adjacent two side edges of the first side edge, and lateral notches are formed on the opposite sides of the first side edge, and the cover plate includes a top plate portion and a side plate portion, the top plate portion is used to cover the top of the installation space, and the side plate portion is used to cover the lateral notch.

[0014] In order to achieve the above objectives, the utility model also provides a harvester, which includes a grain elevator, a grain box, a fixed bracket and the above-mentioned grain monitoring device. The fixed bracket is arranged on the side of the grain elevator close to the grain box, and the mounting shell is detachably arranged on the fixed bracket.

[0015] Through the above technical solution, the grain monitoring device and harvester provided by the embodiment of the utility model have the following beneficial effects:

[0016] When the harvester uses the above-mentioned grain monitoring device, the mounting shell is fixed to the grain elevator of the harvester through a connecting piece, and an image acquisition component is arranged in the mounting shell. The grains harvested by the harvester are transmitted to the grain box through the grain elevator, and the light emitted by the light source illuminates the grains on the transmission surface through the image acquisition window. The high-speed camera is used to continuously capture images of the grains on the transmission surface, and the operator can adjust the position of the high-speed camera so that the high-speed camera is in the best imaging position, thereby capturing clear images of the grains in the transportation state. Compared with the technical solution of sampling and shooting, the image acquisition cycle is shortened and the timeliness of image analysis is improved. Based on the image information collected by the grain monitoring device, the performance of the harvester can be judged more accurately and intuitively.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is an overall structural diagram of a seed monitoring device according to one embodiment of the present invention;

[0020] Figure 2 is a side view of a seed monitoring device according to one embodiment of the present invention;

[0021] Figure 3 This is a bottom structural diagram of a seed monitoring device according to an embodiment of the present invention;

[0022] Figure 4 It is a structural diagram of a mounting stand according to one embodiment of the present utility model.

[0023] Description of Reference Numerals

[0024] 1 Mounting housing 10 Image acquisition window

[0025] 11 bottom panel 12 side panel

[0026] 120 lateral notch 121 first enclosure body

[0027] 122 second enclosure body 123 first connection portion

[0028] 124 Second connection portion 13 Cover plate

[0029] 131 top plate 132 side plate

[0030] 2 Image acquisition component 21 Light source component

[0031] 211 Rotating shaft 212 Adjusting shaft

[0032] 22 High-speed camera 23 Mounting stand

[0033] 231 Fixed column 232 Lifting block

[0034] 233 Camera mounting plate 24 Light source mounting seat

[0035] 241 Install vertical board 242 Shading horizontal board

[0036] 241a Angle adjustment hole 31 Dust shield

[0037] 32 pressure plate 33 notch DETAILED DESCRIPTION

[0038] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0039] The grain monitoring device and harvester of the present invention will be described below with reference to the accompanying drawings.

[0040] like Figure 1 As shown, the utility model provides a grain monitoring device, wherein the grain monitoring device includes:

[0041] The mounting housing 1 is mounted on the grain elevator of the harvester and forms an installation space having an image acquisition window 10, and the image acquisition window 10 is located on one side of the installation space close to the transmission surface of the grain elevator;

[0042] The image acquisition component 2 is arranged in the installation space and includes a light source 21 and a high-speed camera 22. The light source 21 can emit visible light to illuminate the image acquisition window 10. The lens of the high-speed camera 22 is set toward the image acquisition window 10, and the high-speed camera 22 can move toward or away from the image acquisition window 10.

[0043] When the harvester uses the above-mentioned grain monitoring device, the mounting shell 1 is fixed to the grain elevator of the harvester through a connecting piece, and an image acquisition component 2 is configured in the mounting shell 1. The grains harvested by the harvester are transmitted to the grain box through the grain elevator, and the light emitted by the light source 21 illuminates the grains on the transmission surface through the image acquisition window 10. The high-speed camera 22 is used to continuously capture images of the grains on the transmission surface, and the operator can adjust the position of the high-speed camera 22 so that the high-speed camera 22 is in the best imaging position, thereby capturing a clear image of the grains in the transportation state. Compared with the technical solution of sampling and shooting, the image acquisition cycle is shortened and the timeliness of image analysis is improved. Based on the image information collected by the grain monitoring device, the performance of the harvester can be judged more accurately and intuitively.

[0044] like Figure 1 As shown, in this embodiment of the present invention, the image acquisition assembly 2 further includes a light source mounting base 24 located within the installation space. The light source mounting base 24 is mounted on a peripheral edge of the image acquisition window 10. The light source component 21 is mounted on the light source mounting base 24, with the light emitting surface of the light source component 21 facing the image acquisition window 10. The high-speed camera 22 is positioned directly opposite the image acquisition window 10. The light source mounting base 24 and the light source component 21 are positioned outside the image acquisition window 10, with the light emitting surface of the light source component 21 facing directly toward the transmission surface of the grain elevator. This ensures the brightness of the image captured by the high-speed camera 22 and improves the accuracy of subsequent image analysis.

[0045] Of course, the present invention is not limited thereto. In some embodiments, the light source 21 may also be configured in a ring shape and disposed directly below the high-speed camera 22 .

[0046] like Figure 2 As shown, in an embodiment of the present invention, the light source mounting base 24 includes two mounting plates 241 spaced relative to each other along the periphery of the image acquisition window 10. Each mounting plate 241 is provided with an angle adjustment hole 241a. Opposite ends of the light source 21 are correspondingly inserted into the angle adjustment holes 241a of the two mounting plates 241, allowing the angle of the light source 21 to be adjusted. The light source mounting base 24 allows the angle of the light source 21 to be adjusted to an optimal position. It is understood that factors such as the installation tolerance of the grain monitoring device on the grain elevator and the type of grain harvested by the harvester can affect the lighting conditions required for the high-speed camera 22 to capture images. A single-angle light source cannot guarantee sufficient clarity in the images captured by the high-speed camera 22. The grain monitoring device provided by the present invention allows the light source 21 to be adjusted according to actual operating conditions to ensure image clarity, thereby improving the accuracy of the image analysis system's judgment.

[0047] like Figure 2 As shown, in this embodiment of the utility model, a rotating shaft 211 and an adjustment shaft 212 are provided at opposite ends of the light source component 21. The adjustment shaft 212 is disposed on the upper side of the rotating shaft 211. The light source component 21 is rotatably mounted on the mounting plate 241 via the rotating shaft 211. The adjustment shaft 212 is inserted into an angle adjustment hole 241a, which extends along a circumference centered around the axis of the rotating shaft 211. Specifically, the adjustment shaft 212 is configured as a bolt. By tightening the bolt, the light source component 21 can be loosened or fixed, and the tilt angle of the light source component 21 can be continuously adjusted.

[0048] Furthermore, the tops of the two mounting vertical plates 241 are connected with a shading horizontal plate 242, which can form a shielding above the light source 21 to prevent the light emitted by the light source 21 from directly shining on the lens of the high-speed camera 22 and causing light spots to appear in the image, thereby ensuring the accuracy of image recognition.

[0049] like Figure 1 and Figure 4 As shown, in the embodiment of the present invention, the image acquisition assembly 2 further includes a mounting stand 23 located in the installation space. The mounting stand 23 and the light source mounting seat 24 are respectively arranged on opposite sides of the image acquisition window 10, and the mounting stand 23 includes a fixed column 231 and a lifting block 232 which is height-adjustable and is arranged on the fixed column 231. The high-speed camera 22 is arranged on the lifting block 232. The mounting stand 23 and the light source mounting seat 24 are arranged opposite to each other with the image acquisition window 10 spaced apart. There is no interference between the two. Figure 1 In the figure, the high-speed camera 22 is located above and to the side of the light source mounting seat 24. Obviously, the high-speed camera 22 can be lowered to be flush with the light source mounting seat 24 by adjusting the lifting block 232. A certain space is still reserved between the two to avoid bumping the high-speed camera 22 during the adjustment process.

[0050] A bent camera mounting plate 233 is provided on the lifting block 232, and the horizontal section of the camera mounting plate 233 extends from the lifting block 232 toward the side where the light source mounting seat 24 is provided, and the vertical section of the camera mounting plate 233 extends upward from the end of the horizontal section away from the lifting block 232 to form an installation facade for installing the high-speed camera 22.

[0051] Since the light source 21 only needs to be adjusted to the optimal imaging position during installation, the mounting stand 23 is preferably a manually adjustable structure, such as a bolt adjustment structure, which has a simple structure and low cost.

[0052] like Figure 1 and Figure 3As shown, in this embodiment of the present invention, the seed monitoring device further includes a dustproof plate 31 removably positioned within the image acquisition window 10 to prevent dust from entering the installation space. To ensure image acquisition by the high-speed camera 22, the dustproof plate 31 is made of a transparent material. Preferably, the dustproof plate 31 is an acrylic plate, which is lightweight and easy to remove and clean. Alternatively, the dustproof plate 31 may be a glass plate.

[0053] In this embodiment of the present invention, a step is formed on the sidewall of the image acquisition window 10 for the dustproof plate 31 to overlap. The seed monitoring device also includes a pressing plate 32, one end of which is hinged to a side edge of the image acquisition window 10 and the other end is used to press against the dustproof plate 31. By rotating the pressing plate 32, the dustproof plate 31 can be quickly tightened or loosened, facilitating its installation and removal.

[0054] It is understandable that as a grain harvesting equipment, the harvester will vibrate due to uneven road conditions and the operation of the engine, and the grain monitoring device is directly installed on the harvester. If the dustproof plate 31 is not fixed, the dustproof plate 31 will shake violently, affecting the image acquisition quality, and even causing the dustproof plate 31 to fall out of the image acquisition window 10. By setting a pressure plate 32, the dustproof plate 31 can be pressed against the step portion to reduce or avoid shaking of the dustproof plate 31.

[0055] Specifically, one end of the pressure plate 32 is hinged to the base plate 11 via a connecting bolt. The pressure plate 32 can rotate horizontally around the bolt, and by tightening the connecting bolt, the pressing force of the pressure plate 32 on the dustproof plate 31 can be adjusted. Of course, the present invention is not limited to this, and the dustproof plate 31 can also be fixedly connected to the base plate 11 by bolt connection.

[0056] Furthermore, a notch 33 is provided on the side of the image acquisition window 10 to facilitate operators to remove the dustproof plate 31 from the image acquisition window 10 .

[0057] like Figures 1 to 3 As shown, in this embodiment of the utility model, the mounting housing 1 includes a base plate 11, side panels 12, and a cover plate 13 that enclose a mounting space. The base plate 11 has an image acquisition window 10. The side panels 12 are arranged to enclose at least two sides of the base plate 11 and have a lateral notch 120 formed on at least one side. The cover plate 13 is detachably connected to the side panels 12 and can cover the top and lateral notches 120 of the mounting space. The mounting housing 1 is designed as a split structure to facilitate assembly and disassembly on the harvester.

[0058] Specifically, when installing the grain monitoring device, first install the mounting stand 23, the light source mounting seat 24 and the light source component 21 on the base plate 11, then fix the base plate 11 and the side panel 12 together on the grain elevator, and then install the high-speed camera 22, and adjust the installation height of the high-speed camera 22 and the pitch angle of the light source component 21 to obtain the best imaging clarity, and then install the cover plate 13 on the cover.

[0059] Specifically, the side panels 12 are provided with heat dissipation holes and routing holes for the cables of the high-speed camera and light source 21. A protective cover is also provided on the outside of the side panels 12, covering the heat dissipation holes and routing holes to prevent rain and dust from entering the installation space. Furthermore, the protective cover is detachable, either with connection holes on the side or with clips on the cover. Accordingly, the side panels 12 also need to have connection holes or slots.

[0060] like Figure 2 As shown, in this embodiment of the present invention, the bottom ends of the side panels 12 are bent inward to form first connecting portions 123. The bottom panel 11 is placed on the first connecting portions 123 and is detachably connected to the first connecting portions 123 via fasteners. Thus, a single set of fasteners can simultaneously secure the side panels 12 and bottom panel 11 to the grain elevator, eliminating the need to secure the side panels 12 and bottom panel 11 separately and reducing the number of fasteners used.

[0061] like Figure 3 As shown, in the embodiment of the present utility model, the side panel 12 includes a first panel body 121 and a second panel body 122. The first ends of the first panel body 121 and the second panel body 122 are spliced ​​along the first side of the bottom plate 11. The second ends of the first panel body 121 and the second panel body are bent and extended along the adjacent two sides of the first side, and a lateral notch 120 is formed on the opposite side of the first side. The cover plate 13 includes a top plate portion 131 and a side plate portion 132. The top plate portion 131 is used to cover the top of the installation space, and the side plate portion 132 is used to cover the lateral notch 120. The side panel 12 is configured as two independent panel bodies, which is convenient for storage after disassembly.

[0062] Specifically, the second ends of the first enclosure body 121 and the second enclosure body 122 are both formed with a second connecting portion 124 for splicing with the side plate portion 132, and corresponding connecting holes for bolts to pass through are formed on the second connecting portion 124 and the side plate portion 132.

[0063] Furthermore, the second connecting portion 124 of the second enclosure body 122 and the side plate portion 132 are formed with a lock hole corresponding to the side plate portion 132, and the lock hole is used for the operator to set a padlock, see Figure 1The connecting bolts pass through the bottom plate 11 and the first connecting portion 123 of the side panel 12 from top to bottom and fix the two to the grain elevator. The nuts of the connecting bolts are located in the installation space. Without opening the cover 13, the connecting bolts cannot be screwed and disassembled. After the operator covers the cover 13 and sets a padlock accordingly, the cover 13 and the second panel body 122 cannot be detached, thereby improving the anti-theft performance of the grain monitoring device and preventing the high-speed camera 22 from being stolen.

[0064] Specifically, the first enclosure body 121 and the second enclosure body 122 are spliced ​​with a mortise and tenon structure, and a mortise groove is formed at the first end of one of the two enclosure bodies, and a tenon is formed at the first end of the other. This mortise and tenon structure can make the connection between the first enclosure body 121 and the second enclosure body 122 more stable. During the operation of the harvester, the vibrations of the first enclosure body 121 and the second enclosure body 122 are synchronized, which can reduce or even avoid the noise generated by the collision between the two.

[0065] In order to achieve the above objectives, the utility model also provides a harvester, which includes a grain elevator, a grain box, a fixed bracket and the above-mentioned grain monitoring device. The fixed bracket is arranged on the side of the grain elevator close to the grain box, and the mounting shell 1 is detachably arranged on the fixed bracket.

[0066] In the description of this utility model, it should be understood that 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 indicated. Therefore, 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 at least two, for example, two, three, etc., unless otherwise specifically defined.

[0067] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0068] In the description of this specification, the description with 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. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0069] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A grain monitoring device, characterized in that: The grain monitoring device comprises: An installation housing (1) is mounted on a grain elevator of a harvester and forms an installation space having an image acquisition window (10), wherein the image acquisition window (10) is located on a side of the installation space close to a transmission surface of the grain elevator; An image acquisition component (2) is arranged in the installation space and comprises a light source (21) and a high-speed camera (22). The light source (21) can emit visible light to illuminate the image acquisition window (10). The lens of the high-speed camera (22) is arranged toward the image acquisition window (10), and the high-speed camera (22) can move toward or away from the image acquisition window (10).

2. The grain monitoring device according to claim 1, characterized in that: The image acquisition component (2) further comprises a light source mounting seat (24) located in the installation space, the light source mounting seat (24) being mounted on a peripheral edge of one side of the image acquisition window (10), the light source component (21) being mounted on the light source mounting seat (24), and the light emitting surface of the light source component (21) being arranged toward the image acquisition window (10), and the high-speed camera (22) being arranged facing the image acquisition window (10).

3. The grain monitoring device according to claim 2, characterized in that: The light source mounting seat (24) comprises two mounting uprights (241) arranged at a relative interval along the periphery of the image acquisition window (10), and the two mounting uprights (241) are each provided with an angle adjustment hole (241a), and the opposite ends of the light source component (21) are respectively and one-to-one correspondingly inserted into the angle adjustment holes (241a) of the two mounting uprights (241), so that the angle of the light source component (21) can be adjusted.

4. The grain monitoring device according to claim 3, characterized in that: The light source component (21) is provided with a rotating shaft (211) and an adjusting shaft (212) at opposite ends thereof, and the adjusting shaft (212) is provided on the upper side of the rotating shaft (211); the light source component (21) is rotatably provided on the mounting vertical plate (241) via the rotating shaft (211); and the adjusting shaft (212) is passed through the angle adjustment hole (241a); and the angle adjustment hole (241a) extends along a circumference with the axis of the rotating shaft (211) as the center.

5. The grain monitoring device according to claim 2, characterized in that: The image acquisition assembly (2) further comprises a mounting stand (23) located in the installation space, the mounting stand (23) and the light source mounting seat (24) are respectively arranged on opposite sides of the image acquisition window (10), and the mounting stand (23) comprises a fixed column (231) and a lifting block (232) which is height-adjustable and arranged on the fixed column (231), and the high-speed camera (22) is arranged on the lifting block (232).

6. The grain monitoring device according to claim 1, characterized in that: The seed monitoring device further comprises a dustproof plate (31) detachably placed in the image acquisition window (10), wherein the dustproof plate (31) is made of a transparent material.

7. The seed monitoring device according to claim 6, characterized in that: A step portion for overlapping the dustproof plate (31) is formed on the side wall of the image acquisition window (10), and the grain monitoring device further comprises a pressing plate (32), one end of the pressing plate (32) is hinged to a side periphery of the image acquisition window (10), and the other end is used for pressing onto the dustproof plate (31).

8. The grain monitoring device according to any one of claims 1 to 7, characterized in that: The installation housing (1) comprises a base plate (11), a side panel (12) and a cover plate (13) which enclose the installation space, the image acquisition window (10) being provided on the base plate (11), the side panels (12) being arranged to enclose at least two sides of the base plate (11) and having a lateral notch (120) formed on at least one side, and the cover plate (13) being detachably connected to the side panels (12) and capable of covering the top of the installation space and the lateral notch (120).

9. The seed monitoring device according to claim 8, characterized in that: The bottom end of the side panel (12) is bent inward to form a first connecting portion (123), and the bottom plate (11) is placed on the first connecting portion (123) and is detachably connected to the first connecting portion (123) via a fastener; And / or, the side panel (12) includes a first panel body (121) and a second panel body (122), the first ends of the first panel body (121) and the second panel body (122) are spliced ​​along the first side edge of the base plate (11), the second ends of the first panel body (121) and the second panel body are bent and extended along the adjacent two sides of the first side edge respectively, and the lateral notch (120) is formed on the opposite side of the first side edge, and the cover plate (13) includes a top plate portion (131) and a side plate portion (132), the top plate portion (131) is used to cover the top of the installation space, and the side plate portion (132) is used to cover the lateral notch (120).

10. A harvester, characterized in that: The harvester includes a grain elevator, a grain box, a fixed bracket and a grain monitoring device according to any one of claims 1 to 9, wherein the fixed bracket is arranged on a side of the grain elevator close to the grain box, and the mounting shell (1) is detachably arranged on the fixed bracket.

Images