Flat plate type dynamic automobile weighing device
By improving the structural design of the flatbed dynamic vehicle weighing device, enhancing its stability and pressure resistance, and combining it with a buffer component, the problems of structural deformation and damage were solved, achieving high-precision and long-life weighing functions.
Patent Information
- Application Number
- CN202520725357.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-16
AI Technical Summary
Existing flatbed dynamic vehicle weighing devices are prone to structural deformation when subjected to heavy vehicle impacts over extended periods, which can affect detection accuracy, cause damage, or even lead to accidents.
The structure adopts a base frame module, load-bearing module, and detection module, including a base plate, support frame, main support plate, load-bearing frame, and installation components, which enhances the stability and compressive strength of the device. Combined with buffer components, it absorbs impact energy and protects the internal structure.
This improved the detection accuracy and service life of the device, reduced the possibility of structural deformation and damage, and ensured the safety and reliability of the device.
Smart Images
Figure CN223910343U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of automobile weighing, in particular to a flat plate type dynamic automobile weighing device. BACKGROUND
[0002] With the increasing improvement of people's production and living standards, automobiles have become the most commonly used transportation tool for people today, and with the rapid development of the construction engineering industry, the use of various large engineering vehicles is also becoming more and more frequent. The large number of vehicles in use not only facilitates people's work and life, but also brings a lot of trouble and problems. Among them, illegal overload is known as the first destroyer of the road, which not only seriously damages roads and bridge facilities, but also easily causes road traffic accidents. In the process of investigating overload, an important step is to measure the actual load of the overloaded vehicle to specifically determine the overload of the vehicle, and the commonly used device for measurement is various flat plate type dynamic automobile weighing devices.
[0003] The flat plate type dynamic automobile weighing device is generally used in the process of vehicle dynamic weighing and is composed of a bearing flat plate and a weighing sensor. When a freight vehicle passes through the bearing flat plate, the weight of the vehicle is measured by the weighing sensor to determine whether the vehicle is overloaded. In the prior art, when heavy vehicles pass through the flat plate type dynamic automobile weighing device for a long time, the internal structure of the weighing device is prone to deformation, which affects the detection accuracy of the flat plate type dynamic automobile weighing device, and the deformation of the structure also causes damage to the flat plate type dynamic automobile weighing device, and even accidents may occur.
[0004] With respect to the related technology described above, the inventors believe that there is a defect that when heavy vehicles pass through the flat plate type dynamic automobile weighing device for a long time, the internal structure of the weighing device is prone to deformation, which affects the detection accuracy of the flat plate type dynamic automobile weighing device, and the deformation of the structure also causes damage to the flat plate type dynamic automobile weighing device, and even accidents may occur. CONTENT OF THE UTILITY MODEL
[0005] In order to improve the problem that when heavy vehicles pass through the flat plate type dynamic automobile weighing device for a long time, the internal structure of the weighing device is prone to deformation, which affects the detection accuracy of the flat plate type dynamic automobile weighing device, and the deformation of the structure also causes damage to the flat plate type dynamic automobile weighing device, and even accidents may occur, the present application provides a flat plate type dynamic automobile weighing device.
[0006] The flat plate type dynamic automobile weighing device provided by the present application adopts the following technical solution:
[0007] The application discloses a flat plate type dynamic vehicle weighing device which comprises a bottom frame module, a bearing module and a detection module.
[0008] The bearing module is arranged on the frame module, and comprises a bearing platform and a bearing frame.
[0009] A plurality of detection modules are arranged inside the frame module.
[0010] The bottom frame module serves as the frame structure of the whole device and provides a mounting base for the bearing module and the detection module.
[0011] The installation assembly and the bearing frame jointly improve the internal structure stability and durability of the bearing module.
[0012] The main support plate provides a mounting base for the two main cross beams.
[0013] Optionally, a plurality of second mounting plates are arranged between two adjacent first mounting plates, one end of the second mounting plate is connected with the bearing frame, the other end is connected with the main cross beam, and a plurality of third mounting plates are arranged between the two main cross beams.
[0014] By adopting the above technical scheme, the first mounting plate serves as a reinforcing piece between the bearing frame and the main cross beam, reduces the concentrated stress of the vehicle on the bearing frame and the main cross beam on the bearing platform, improves the strength and rigidity between the bearing frame and the main cross beam, enhances the anti-deformation ability of the bearing frame and the main cross beam, and avoids deformation of the bearing frame and the main cross beam.
[0015] Optionally, a web plate is arranged between the main cross beam and the main support plate.
[0016] By adopting the above technical scheme, the web plate is arranged between the main cross beam and the main support plate, the arrangement of the web plate can enhance the rigidity between the main cross beam and the main support plate, i.e. the rigidity of the bottom frame module and the bearing module, at the same time, the web plate can effectively transfer and disperse the load, reduce stress concentration, reduce the main tensile stress caused by the bending shear stress and torsional shear stress between the bearing main cross beam and the main support plate, effectively control deformation, and improve the stability and reliability of the bottom frame module and the bearing module as a whole.
[0017] Optionally, a buffer assembly is connected between the support frame and the bearing frame, the buffer assembly comprises a buffer plate and a cover plate, the buffer plate is installed on one side of the support frame, the buffer plate is connected with the cover plate, and the cover plate is connected with the bearing frame.
[0018] By adopting the above technical scheme, the buffer assembly is arranged between the support frame and the bearing frame, the buffer assembly can absorb and slow down the energy generated due to external impact or vibration, thereby protecting the support frame and the bearing frame from damage, i.e. when a heavy vehicle is driven on the bearing platform of the bearing module, the buffer assembly absorbs the impact and vibration caused by the vehicle, thereby reducing damage to the bearing module and the bottom frame module, protecting the detection module, and improving the detection accuracy and service life of the device; the buffer plate can be used to absorb the impact force and vibration energy on the support frame and the bearing frame, protect the bearing frame and the support frame from direct impact and damage, and ensure the stability and safety of the device, and the cover plate can be used to close or protect the buffer plate, prevent dust or other impurities from entering, and enhance the sealing and protection of the buffer assembly.
[0019] Optionally, the detection module comprises a base plate and a load cell, the load cell is installed on the bottom plate, a plurality of base plates are clamped on the main cross beam, a linkage block is installed between two base plates, a load column is arranged on the linkage block, the load column is located above the load cell, and the load column is in contact with the load cell.
[0020] By adopting the above technical scheme, the main cross beam provides a mounting base for the base plate, the base plate provides a mounting base for the linkage block, the load column is installed on the linkage block, the load cell is located on the bottom plate, and the load column and the load cell are not hard connected. When a heavy vehicle runs on the bearing platform, the posture of the load cell is not twisted to ensure the natural state, the weighing accuracy of the device is ensured, the service life of the detection module is improved, and the maintenance work of the device is reduced.
[0021] Optionally, the end of the bottom plate is provided with a wire pipe.
[0022] By adopting the above technical scheme, the wire pipe provides protection and management for the cable of the load cell, prevents the cable of the load cell from being damaged by the external environment, and further improves the service life of the detection module.
[0023] Optionally, a plurality of side rib plates are arranged on the outer side of the support frame at intervals, and a lifting hole is arranged on the side rib plate.
[0024] By adopting the above technical scheme, the plurality of side rib plates arranged on the support frame can make the support frame bear greater pressure, enhance the rigidity and strength of the whole support frame, prevent the support frame from deforming or being damaged in the running of more vehicles, and further ensure the impact resistance, stability and reliability of the whole device. The arrangement of the lifting hole can facilitate the installation and disassembly of the whole device.
[0025] Optionally, a steel frame is arranged on one side of the support frame.
[0026] By adopting the above technical scheme, the arrangement of the steel frame can enhance the stability and carrying capacity of the device. The steel frame can effectively disperse and transfer the load by providing additional support and reinforcement, so as to ensure that the device will not deform or tilt during use, ensure the accuracy and safety of the device, effectively improve the overall rigidity of the device, so that the device can bear greater impact and load, thereby prolonging the service life of the device.
[0027] Optionally, a sealing plate and anti-skid patterns are arranged on the bearing platform, and the sealing plate is located above the detection module.
[0028] By adopting the technical scheme, the sealing plate can prevent external substances such as rain and sand from entering the inside of the device, thereby protecting the weighing sensor and other components from being damaged, and ensuring the weighing accuracy and reliability of the device; and the anti-skid pattern can increase the friction coefficient of the surface of the bearing platform, and prevent the vehicle running on the bearing platform from slipping during the weighing process.
[0029] In summary, the present application includes at least one of the following beneficial technical effects:
[0030] 1. The two side plates and two support frames form a bottom frame module, the main support plate is located between the two support frames of the bottom plate, and a plurality of connecting plates are connected between the main support plate and the support frames to enhance the stability of the bottom frame module and ensure the strength of the device; the two bearing frames are connected with the mounting assembly located between the two bearing frames to enhance the stability inside the bearing module, the top of which is provided with a bearing platform, and the bearing module is located above the main support plate, and the connection of the bearing frame, the mounting assembly and the bearing platform can effectively improve the compression resistance of the bearing module; the detection module is located inside the frame module, and the bottom frame module and the bearing module make the internal structure of the device stable, effectively improve the compression strength and bending strength of the device, so that the internal structure of the device is not easy to deform when a heavy vehicle passes through the flat dynamic vehicle weighing device, avoiding damage to the detection module, thereby improving the detection accuracy of the device and reducing the damage of the detection module and the occurrence of accidents in the device;
[0031] 2. The buffer assembly between the support frame and the bearing frame can absorb and slow down the energy generated by external impact or vibration, thereby protecting the support frame and the bearing frame from damage, that is, when a heavy vehicle runs on the bearing platform of the bearing module, the buffer assembly absorbs the impact and vibration caused by the vehicle, thereby reducing the damage to the bearing module and the bottom frame module, protecting the detection module and improving the detection accuracy and service life of the device. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 is the overall structure schematic diagram of the flat dynamic vehicle weighing device of the embodiment of the present application;
[0033] Figure 2 is the structure schematic diagram of the bottom frame module in the flat dynamic vehicle weighing device of the embodiment of the present application;
[0034] Figure 3 is the structure schematic diagram of the bearing module in the flat dynamic vehicle weighing device of the embodiment of the present application.
[0035] BRIEF DESCRIPTION OF DRAWINGS
[0036] 1, bottom frame module; 11, bottom plate; 111, threading pipe; 12, support frame; 13, side plate; 14, main support plate; 15, connecting plate; 2, bearing module; 21, bearing platform; 211, sealing plate; 212, anti-skid pattern; 22, bearing frame; 23, mounting assembly; 231, first mounting plate; 232, main cross beam; 233, second mounting plate; 234, third mounting plate; 24, web plate; 25, buffer assembly; 251, buffer plate; 252, cover plate; 3, detection module; 31, base plate; 32, load cell; 33, load column; 4, side rib plate; 41, hoisting hole; 5, steel frame. DETAILED DESCRIPTION
[0037] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0039] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0040] The following will be described in detail with reference to the accompanying drawings Figures 1-3 The present application will be further described in detail.
[0041] The embodiment of the present application discloses a flat plate type dynamic automobile weighing device, which is referred to Figure 1The flat plate type dynamic vehicle weighing device comprises a bottom frame module 1, a bearing module 2 and a detection module 3. The bottom frame module 1 comprises a bottom plate 11. A pair of sides of the bottom plate 11 are provided with support frames 12, and the other pair of sides are provided with side plates 13. A main support plate 14 is arranged on the bottom plate 11 along the length direction of the bottom plate 11. The main support plate 14 is located between the two support frames 12. A plurality of connecting plates 15 are connected to the two sides of the main support plate 14 to connect the main support plate 14 and the support frames 12.
[0042] The bearing module 2 is arranged on the frame module. The bearing module 2 comprises a bearing platform 21 and bearing frames 22. The bearing frames 22 are arranged on the two sides of the bottom of the bearing platform 21. The bearing frames 22 are located on one side of the support frames 12. The two bearing frames 22 are connected with a mounting assembly 23.
[0043] A plurality of detection modules 3 are arranged inside the frame module.
[0044] In the device, the bottom frame module 1 serves as the frame structure of the whole device. The top of the bearing module 2 serves as the panel for the vehicle to run on. The detection module 3 can be used to detect the weight of the vehicle.
[0045] The bottom frame module 1 provides the mounting basis for the bearing module 2 and the detection module 3. The bottom plate 11 serves as the support for the support frames 12 and the main support plate 14. The two side plates 13 and the two support frames 12 form the overall frame of the bottom frame module 1. The main support plate 14 is located between the two support frames 12 of the bottom plate 11. A plurality of connecting plates 15 are connected between the main support plate 14 and the support frames 12. This arrangement can enhance the stability of the bottom frame module 1, has strong durability and ensures the strength of the device. In this application, the support frames 12 are made of channel steel. The channel steel can effectively utilize its excellent mechanical properties to improve the overall compression resistance of the dynamic device, so that it is not easy to deform under strong force, has strong durability and a solid internal structure.
[0046] The two bearing frames 22 are connected with the mounting assembly 23 located between the two bearing frames 22, which can enhance the stability inside the bearing module 2. The bearing platform 21 is arranged on the top of the bearing module 2 and is arranged between the two support frames 12. The overall bearing module 2 is located above the main support plate 14. Through the connection of the bearing frames 22, the mounting assembly 23 and the bearing platform 21, the compression resistance of the bearing module 2 can be effectively improved.
[0047] The detection module 3 is located inside the frame module. Through the arrangement of the bottom frame module 1 and the bearing module 2, the internal structure of the device is stable, has strong durability and stability, can effectively improve the compression strength and bending strength of the device, so that the internal structure of the device is not easy to deform when a heavy vehicle passes through the flat plate type dynamic vehicle weighing device, thereby improving the detection accuracy of the device and reducing the damage and accidents of the detection module 3 in the device.
[0048] The mounting assembly 23 comprises a plurality of first mounting plates 231 located between the two bearing frames 22 and two main cross beams 232 located above the main support plate 14, the main cross beams 232 are connected with the first mounting plates 231 in a clamping manner, the mounting assembly 23 and the bearing frame 22 together improve the internal structural stability and durability of the bearing module 2, the main support plate 14 provides a mounting basis for the two main cross beams 232, the main cross beams 232 and the first mounting plates 231 are connected in a clamping manner, and the two ends of the first mounting plates 231 are connected with the two bearing frames 22, the mounting plates and the bearing frames 22 provide a support basis for the bearing platform 21 in two directions, thereby improving the overall compressive strength of the bearing module 2 and the stability of the internal structure.
[0049] A plurality of second mounting plates 233 are arranged between the two adjacent first mounting plates 231, one end of the second mounting plate 233 is connected with the bearing frame 22, and the other end is connected with the main cross beam 232, and a plurality of third mounting plates 234 are arranged between the two main cross beams 232, wherein the first mounting plate 231 serves as a reinforcing piece between the bearing frame 22 and the main cross beam 232, reduces the concentrated stress of the vehicle on the bearing frame 22 and the main cross beam 232 on the bearing platform 21, improves the strength and rigidity between the bearing frame 22 and the main cross beam 232, enhances the anti-deformation ability of the bearing frame 22 and the main cross beam 232, and avoids deformation of the bearing frame 22 and the main cross beam 232; the third mounting plate 234 can further improve the stability and strength of the connection between the two main cross beams 232, reduce the concentrated stress on the main cross beam 232, avoid damage to the two main cross beams 232, and reduce the possibility of damage to the detection module 3.
[0050] The web plate 24 is arranged between the main cross beam 232 and the main support plate 14, which can enhance the rigidity between the main cross beam 232 and the main support plate 14, that is, the rigidity of the bottom frame module 1 and the bearing module 2, and the web plate 24 can effectively transfer and disperse the load, reduce stress concentration, reduce the main tensile stress caused by bending shear stress and torsional shear stress between the bearing main cross beam 232 and the main support plate 14, effectively control deformation, and improve the overall stability and reliability of the bottom frame module 1 and the bearing module 2.
[0051] Referring to Figure 2 and Figure 3 , the support frame 12 and the bearing frame 22 are connected with the buffer assembly 25, the buffer assembly 25 can absorb and slow down the energy generated by external impact or vibration, thereby protecting the support frame 12 and the bearing frame 22 from damage, that is, when a heavy vehicle drives on the bearing platform 21 of the bearing module 2, the buffer assembly 25 absorbs the impact and vibration caused by the vehicle, thereby reducing the damage to the bearing module 2 and the bottom frame module 1, protecting the detection module 3, and improving the detection accuracy and service life of the device.
[0052] The buffer assembly 25 comprises a buffer plate 251 and a cover plate 252, the buffer plate 251 is installed on one side of the support frame 12, the buffer plate 251 is connected with the cover plate 252, the cover plate 252 is connected with the bearing frame 22, the buffer assembly 25 is arranged between the support frame 12 and the bearing frame 22, wherein the buffer plate 251 can be used to absorb the impact force and vibration energy on the support frame 12 and the bearing frame 22, protect the bearing frame 22 and the support frame 12 from direct impact and damage, ensure the stability and safety of the device, the cover plate 252 can be used to close or protect the buffer plate 251, prevent dust or other impurities from entering, enhance the sealing and protection of the buffer assembly 25.
[0053] The detection module 3 comprises a base plate 31 and a load cell 32, the load cell 32 is installed on the bottom plate 11, a plurality of base plates 31 are clamped on the main cross beam 232, a linkage block is installed between the two base plates 31, a load column 33 is arranged on the linkage block, the load column 33 is located above the load cell 32, the load column 33 is in contact with the load cell 32, the main cross beam 232 provides a mounting basis for the base plate 31, the base plate 31 provides a mounting basis for the linkage block, the load column 33 is installed on the linkage block, the load cell 32 is located on the bottom plate 11, the load column 33 and the load cell 32 are not hard connected, when a heavy vehicle runs on the bearing platform 21, that is, when the impact force is applied, the posture of the load cell 32 is not twisted to ensure the natural state, ensuring the weighing accuracy of the device, prolonging the service life of the detection module 3 and reducing the maintenance work of the device.
[0054] The end of the bottom plate 11 is provided with a wire tube 111, which provides protection and management for the cable of the load cell 32, prevents the cable of the load cell 32 from being damaged by the external environment, and thus prolongs the service life of the detection module 3. Specifically, the cable of the load cell 32 transmits measurement data to a receiving terminal, and the weighing data of the measured vehicle is obtained.
[0055] A plurality of side rib plates 4 are arranged on the outer side of the support frame 12 at intervals, the side rib plates 4 are provided with lifting holes 41, and the plurality of side rib plates 4 arranged on the support frame 12 can make the support frame 12 bear greater pressure, enhance the rigidity and strength of the whole support frame 12, prevent the support frame 12 from deforming or being damaged in the running of more vehicles, and thus ensure the impact resistance, stability and reliability of the whole device; the lifting holes 41 can facilitate the installation and disassembly of the whole device.
[0056] The support frame 12 is provided with a steel frame 5 on one side, which can enhance the stability and carrying capacity of the device, and can effectively disperse and transfer the load by providing additional support and reinforcement, thereby ensuring that the device does not deform or tilt during use, ensuring the accuracy and safety of the device, and effectively improving the overall rigidity of the device, so that the device can withstand greater impact and load, thereby prolonging the service life of the device.
[0057] The bearing platform 21 is provided with a sealing plate 211 and a non-slip pattern 212, the sealing plate 211 is located above the detection module 3, the sealing plate 211 can prevent rain, sand and other external substances from entering the device, thereby protecting the weighing sensor 32 and other components from damage, ensuring the weighing accuracy and reliability of the device; the non-slip pattern 212 can improve the friction coefficient of the surface of the bearing platform 21, preventing the vehicle running on the bearing platform 21 from slipping during weighing.
[0058] A drain pipe is installed on the side of the support frame 12, which drains the accumulated water in the device to the outside through an external water pipe, protecting the weighing sensor 32 and other components from damage, ensuring the weighing accuracy and reliability of the device.
[0059] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A flatbed dynamic vehicle weighing device, characterized in that: include The bottom frame module (1) includes a bottom plate (11), on one side of the bottom plate (11) are a support frame (12) and on the other side are a side plate (13). A main support plate (14) is provided on the bottom plate (11) along the length direction of the bottom plate (11). The main support plate (14) is located between the two support frames (12). Several connecting plates (15) are connected to both sides of the main support plate (14) to connect the main support plate (14) and the support frame (12). The support module (2) is located above the main support plate (14). The support module (2) includes a support platform (21) and a support frame (22). The support platform (21) is installed on the support frame (12). The support frame (22) is provided on both sides of the bottom of the support platform (21). The support frame (22) is installed on one side of the support frame (12). An installation component (23) is connected between the two support frames (22). The detection module (3) is located inside the frame module.
2. The flatbed dynamic vehicle weighing device according to claim 1, characterized in that: The mounting assembly (23) includes a plurality of first mounting plates (231) and two main crossbeams (232). The plurality of first mounting plates (231) are located between the two support frames (22), and the two main crossbeams (232) are located above the main support plate (14). The main crossbeams (232) are engaged with the first mounting plates (231).
3. The flatbed dynamic vehicle weighing device according to claim 2, characterized in that: A plurality of second mounting plates (233) are provided between two adjacent first mounting plates (231). One end of the second mounting plate (233) is connected to the support frame (22), and the other end is connected to the main crossbeam (232). A plurality of third mounting plates (234) are provided between two main crossbeams (232).
4. The flatbed dynamic vehicle weighing device according to claim 3, characterized in that: A web (24) is provided between the main crossbeam (232) and the main support plate (14).
5. The flatbed dynamic vehicle weighing device according to claim 1, characterized in that: A buffer assembly (25) is connected between the support frame (12) and the carrier frame (22). The buffer assembly (25) includes a buffer plate (251) and a cover plate (252). The buffer plate (251) is installed on one side of the support frame (12). The buffer plate (251) is connected to the cover plate (252). The cover plate (252) is connected to the carrier frame (22).
6. The flatbed dynamic vehicle weighing device according to claim 2, characterized in that: The detection module (3) includes a base plate (31) and a weighing sensor (32). The weighing sensor (32) is mounted on the base plate (11). Several base plates (31) are clamped on the main crossbeam (232). A linkage block is installed between two base plates (31). A weighing column (33) is provided on the linkage block. The weighing column (33) is located above the weighing sensor (32) and is in contact with the weighing sensor (32).
7. The flatbed dynamic vehicle weighing device according to claim 1, characterized in that: The end of the base plate (11) is provided with a conduit (111).
8. The flatbed dynamic vehicle weighing device according to claim 1, characterized in that: The support frame (12) has several side stiffeners (4) spaced apart on its outer side, and the side stiffeners (4) have hoisting holes (41).
9. The flatbed dynamic vehicle weighing device according to claim 1, characterized in that: A steel frame (5) is provided on one side of the support frame (12).
10. The flatbed dynamic vehicle weighing device according to claim 1, characterized in that: The bearing platform (21) is provided with a sealing plate (211) and an anti-slip pattern (212), and the sealing plate (211) is located above the detection module (3).