Multi-mode geomagnetic universal main body structure capable of being used for upgrading and replacing

Abstract

The utility model relates to a multimode terrestrial magnetism universal main body structure capable of being used for upgrading and replacing, which is characterized in that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that the waterproof characteristic is that; the main body structure can be guided in and limited and stopped when touching the hard support of the opening of the bottom shell by matching with the structure and the screw teeth of the target bottom shell, and the O-shaped sealing ring attached to the outer wall of the top of the surface shell is laterally clamped and deformed by the inner wall of the opening of the bottom shell to generate waterproof sealing; the structure can effectively overcome a series of problems of car entering and exiting breathing effect, sewage and dust accumulation, high-position and low-position joint of the liner and the surface cover, security and protection, communication optimization and the like of the existing product, and supports seamless upgrading and replacement of the product and function iteration in the whole life cycle.

Description

Technical Field

[0001] The utility model relates to a geomagnetic vehicle detection device in the field of intelligent transportation and smart parking, and in particular to a multi-mode geomagnetic universal main structure that is widely applicable to upgrading, replacing old geomagnetic devices in existing berths, and optimizing and replacing old ones. Background Art

[0002] 1. At present, most geomagnetic products in the industry are equipped with O-shaped or square sealing rings on the bottom shell opening and rely on the downward pressure generated and maintained after the surface shell is tightened for the first sealing. In this way, the sealing ring will enter water due to the breathing effect, that is, repeated deformation caused by wheel rolling and rebounding from the car during the implementation of the project; 2. When the existing old geomagnetic liner is dismantled for maintenance, the dirt and mud accumulated on the periphery of the sealing ring of the bottom shell opening for many years are easy to scatter on the surface of the sealing ring. If it is put back for use without taking the time to clean it slowly, its waterproof performance will inevitably be greatly reduced; 3. If the upper cover and the inner liner of the relevant product adopt the high-position sealing ring joint method to implement the second sealing, the breathing effect will be more obvious in actual use, and additional glue filling and sealing must be performed to ensure the sealing. However, this method of sealing once in the early stage is difficult to disassemble and reuse in the later stage, which is obviously not conducive to the future upgrade and maintenance of the product; if the upper cover and the inner liner of the relevant product adopt the low-position O When the second seal is implemented by the O-ring or square sealing ring joint method, because the joint is very close to the bottom of the bottom shell, once the first seal has problems and water enters, the joint will be soaked in water for a long time. In addition, the joint is crushed by heavy vehicles, causing the joint to hit the bottom, or the upper cover is aged and deformed due to high and low temperature changes in the sun and rain, and cannot meet the circular wall required for O-ring sealing, the waterproof performance will be significantly reduced; 4. Existing geomagnetic products rarely have a mechanism that is both waterproof and can be screwed back for communication adjustment. When the communication with the base station is not smooth and the data packet is lost, the geomagnetic must be frequently resent and restarted, and the resent and restart consumes a lot of power. The vicious cycle is interlocking and heavily dependent on telecom operators to add or optimize base stations, or to re-install and redirect, or to disassemble the inner tank to adjust the circuit board or antenna direction (which also brings in moisture). These pose very severe challenges to the normal use of the equipment; 5. Existing products all use three circular holes to install and remove the geomagnetic liner, which has poor anti-theft performance and security loopholes; 6. Most old geomagnets use geomagnetic + radar dual-mode or even single-mode geomagnetic detection to detect vehicles entering and exiting parking spaces. Related products are difficult to overcome the problem of a cliff-like drop in accuracy caused by rainy and snowy weather, and are difficult to replace or upgrade. Replacements are difficult to reuse the existing bottom shell due to structural incompatibility, and secondary construction must be carried out to re-drill and install new ones and discard the old ones. Road closure operations are time-consuming, labor-intensive, and a waste of social resources. All of these problems urgently require new solutions to overcome and solve them one by one. Utility Model Content

[0003] The technical problem to be solved by the utility model is to avoid the deficiencies of the above-mentioned prior art and propose a multi-mode geomagnetic universal main body structure that can be used for upgrading and replacement. The specific scheme is: design and use a multi-mode geomagnetic universal main body structure that can be used for upgrading and replacement, including: a main body protective shell and a geomagnetic + radar + visible light multi-mode vehicle detector, and a power supply battery; the main body protective shell is formed by joining a surface shell in which the multi-mode vehicle detector is installed and a battery carrier at the bottom supporting the power supply battery, and the two are joined in a manner that a width of not less than 2.5 mm is constructed at the bottom of the surface shell and the open top of the battery carrier. annular joint plane, and a thin silicone sheet is arranged between the two joint planes. After tightening the joint screws, the silicone sheet is squeezed to freely extend and deform to both sides of the gap without hindrance to achieve waterproof sealing; the multi-mode geomagnetic is composed of a detachable main structure and a bottom shell buried under the ground, and the screwing method is that the main structure is first adapted to the complementary accommodating space of the bottom shell, and secondly, the outer teeth matching the inner teeth of the bottom shell are arranged on the outer side of the face shell enclosing the multi-mode vehicle detector, so that the main structure can be screwed into the bottom shell clockwise under the action of the matching special tool, and when the outer bottom of the top of the face shell touches the open hard support of the bottom shell, it stops at a limited position; during the rotation introduction process, once the O-ring attached to the outer wall of the top of the face shell is deformed by the lateral left and right clamping of the open inner wall of the bottom shell and the outer wall attached to the face shell, a waterproof seal is generated between the two, accompanied by a large damping twisting, and there is still a surplus, waterproof counterclockwise back-tightening stroke after the limit stop to enable future communication tuning.

[0004] Optionally, the multi-mode geomagnetic universal main structure also includes: a microphone and a fixing sealing hole arranged on the inner side of the top of the face shell, and / or, if the face shell is made of opaque material, a photosensitive device and a waterproof fixing structure that can meet the requirements of visible light data collection are arranged on the top of the face shell; if the face shell is made of transparent material, a solar cell panel that can meet the requirements of visible light data collection and a glue edge sealing fixing structure are arranged on the inner side of the top of the face shell, and at the same time, the product unique ID number is pasted on one side of the solar cell panel, and the product trademark can be pasted on the other side as needed.

[0005] Optionally, the waterproof fixing structure of the photosensitive device includes: two levels of concentric holes, larger on the upper part and smaller on the lower part, arranged on the top of the face shell, the lower hole is used to support the photosensitive device and to set a through hole to guide the signal pin of the photosensitive device to the inner cavity of the face shell, the stepped step is used to stick and support the double-sided frosted quartz glass wafer, or to directly pour glue into the upper hole to waterproof and protect the photosensitive device on the outside, and the supporting base of the photosensitive device on the inside of the face shell is thickened and reinforced, and a fence is set around the signal pin entering the inner cavity to achieve glue sealing and waterproofing of the inner side of the photosensitive device.

[0006] Optionally, when the multi-mode geomagnetic universal main body structure is used as an upgraded replacement, the bottom shell has an open hard support, which is the top of the sealing ring groove after removing the original O-shaped or square sealing ring of the open bottom shell.

[0007] Optionally, the communication optimization means that after the main body structure is installed and grounded, due to serious packet loss in communication with a distant base station, the maintenance personnel can detachably take out the main body structure from the bottom shell using special tools, place a ring gasket of a certain thickness on the open hard support of the bottom shell, and then screw it back in and use it normally; the thickness is the height that the main body structure rises after being counterclockwise turned back to the base station signal optimization position at the limit stop position under the premise of waterproofing.

[0008] Optionally, the battery carrier is provided with a fixed arm for fixing the power supply battery and a matching pressing strip.

[0009] Optionally, copper nuts with embedded parts are pre-buried at the six equal division positions at the bottom of the front shell, and docking screw holes are preset at the corresponding six equal division positions at the open top of the battery carrier. When the two are joined, they are tightened hole by hole through the joining screws one by one; the joining screws are weakly magnetic or non-magnetic stainless steel screws.

[0010] Optionally, there are three triangular flower-shaped installation and disassembly equipment jacks for special tools on the top of the front shell, and different corner combinations can be preset for the jacks to meet the security requirements.

[0011] Optionally, the top of the front shell is set as an arched shape to enhance the water drainage efficiency.

[0012] Optionally, the thin silicone sheet is a waterproof silicone sheet with a uniform thickness in the range of 0.5 mm - 0.8 mm.

[0013] Compared with the prior art, a multi-mode geomagnetic universal main structure that can be used for upgrading and replacement of the present utility model has the following technical effects: 1. By setting an O-ring attached to the side wall of the top of the face shell to laterally seal the inner wall of the open bottom shell, and at the same time removing the original O-ring arranged at the open bottom shell and using the top of its sealing groove as a hard support for limiting and stopping, the present utility model overcomes the inherent deficiencies of the original downward pressing sealing scheme. The breathing effect of the vehicle entering and leaving is greatly reduced in the horizontal direction, and it is difficult to generate sufficient lateral displacement and deformation to weaken the waterproof performance of the new scheme, thus firmly controlling the first waterproof sealing barrier; 2. Thanks to the scheme of placing the sealing O-ring in front of the top in the present utility model, when the multi-mode geomagnetic main structure is taken out in the future, the sewage, mud and dust accumulated on the outer periphery of the O-ring over the years will be pushed out of the shell during the taking-out process, and it can be reinstalled after simply cleaning and wiping, and the waterproof performance is not affected at all; 3. By constructing annular joint planes on the bottom of the face shell and the top of the battery carrier opening respectively, and setting a thin silicone sheet between the two joint planes, and then realizing the waterproof sealing integration scheme after tightening the joint screws, the present utility model overcomes the difficult problems such as difficult reuse and difficult upgrade and maintenance brought by the old geomagnetic high-position O-ring joint + sandwich glue filling sealing hybrid waterproof scheme. Also, by adopting the middle-position joint scheme at the bottom of the face shell and the top of the battery carrier, the negative impacts on geomagnetic induction and wireless communication caused by the metal screws around the top of the high-position joint scheme are eliminated, and the inherent defects such as the joint part being soaked by water, bottom collision, and inner wall aging and deformation caused by the old geomagnetic low-position joint are overcome. At the same time, the serious problems such as the O-shaped or square O-ring being arranged in the sealing groove and the joint screws being overloaded and broken due to the greater reaction force formed when the O-ring is pressed and extended left and right and the nut with parts being pulled out and loosened in the low-position joint scheme are also solved. And for the thin silicone sheet of this scheme, because it is thin enough, a satisfactory waterproof fusion effect can be obtained when the joint screws are tightened with appropriate force. Compared with the waterproof sealing scheme of "longitudinal outer sealing and inner sealing in the groove circle" of most existing products, the main structure adopted in this scheme is a "lateral outer sealing and inner sealing in the plane" characteristic scheme that better meets the product operation and maintenance requirements, and the comprehensive waterproof performance will be comprehensively improved; 4. For the existing products reporting the vehicle entering and leaving data through external communication, its antenna is not a pure non-discriminatory spherical omnidirectional radiation antenna, and its maximum wireless transceiver gain direction is more like a rugby ball, which is directional and biased. In view of this, if various problems are chained together due to the surrounding high-rise buildings and the distribution of operator base stations after the product is installed, the main structure of the present utility model can still have a surplus and waterproof counterclockwise screwing travel to implement communication optimization after the bottom shell is inserted to the limiting and stopping position, which is a structural feature that most products in the industry do not have at present. The communication optimization is under our control, simple and effective; 5.In view of the problem that existing products uniformly come with three round holes for installing and removing the geomagnetic inner tank, the jacks of the present utility model adopt a triangular flower configuration that is difficult to imitate and replicate. By presetting different corner combinations, the anti-theft performance of the product is greatly improved, and security loopholes are plugged. 6. By matching the structure of the original old geomagnetic bottom shell, the high-performance multi-mode vehicle detector is popularized quickly, efficiently, economically and with good quality. The detection efficiency of berth vehicles is comprehensively improved by using three-mode or even four-mode, and the outdated single-mode or even dual-mode geomagnetics are phased out, providing technical support for the product replacement, trade-in, upgrading and functional iteration throughout the whole life cycle of the intelligent parking project. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a general schematic diagram of the universal main structure of the multi-mode geomagnetic of the present utility model;

[0015] Figure 2 is a schematic diagram of relevant details of the universal main structure of the multi-mode geomagnetic of the present utility model;

[0016] Figure 3 is a schematic diagram of the composition of the communication optimization structure of the universal main structure of the multi-mode geomagnetic of the present utility model;

[0017] Figure 4 is a comparison diagram of the appearance of the universal main structure of the multi-mode geomagnetic of the present utility model before and after communication optimization;

[0018] Figure 5 is a reference example diagram of the implementation example of the universal main structure of the multi-mode geomagnetic of the present utility model;

[0019] Figure 6 is a physical diagram of the special tool supporting the universal main structure of the multi-mode geomagnetic of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] As shown in Figure 1, a multi-mode geomagnetic general-purpose main structure for upgrade and replacement of the present utility model includes: a main protection shell 3, a geomagnetic + radar + visible light multi-mode vehicle detector 1, and a power supply battery 2; the main protection shell 3 is formed by joining a face shell 31 with the multi-mode vehicle detector 1 installed inside and a battery carrier 32 supporting the power supply battery 2 at the bottom. The joining method is to construct a ring-shaped joining plane with a width of not less than 2.5 mm at the bottom 310 of the face shell 31 and the open top 320 of the battery carrier 32 respectively, and a thin silicone sheet 20 is arranged between the two joining planes. After tightening the joining screw 326, the silicone sheet 20 is squeezed and freely extends and deforms towards both sides of the gap to achieve waterproof sealing; the multi-mode geomagnetic is composed of two main parts, a detachable main structure A and a bottom shell B buried underground. The screwing method is that the main structure A first fits into the complementary accommodation space of the bottom shell B, and secondly, external teeth A6 matching the internal teeth B6 introduced by the bottom shell B are arranged on the outer side surface of the face shell 31 surrounding the multi-mode vehicle detector 1, so that the main structure A can be screwed clockwise into the bottom shell B under the action of a special tool, and stops when the outer bottom A0 of the top of the face shell 31 touches the hard support B0 at the open end of the bottom shell; during the rotation and introduction process, once the O-ring 10 attached to the outer wall A2 at the top of the face shell 31 is laterally clamped and deformed by the inner wall B2 at the open end of the bottom shell and the attached outer wall A2 of the face shell 31, waterproof sealing between the two is generated, accompanied by a large damping rotation, and there is still a surplus and waterproof counterclockwise rotation stroke after stopping at the limit position to enable future communication optimization.

[0021] As shown in Figure 2, a multi-mode geomagnetic general-purpose main structure A for upgrade and replacement of the present utility model further includes: a microphone 14 and its fixed sealing hole arranged inside the top of the face shell 31, and / or, if the face shell is made of opaque material, a photosensitive device 131 that can meet the requirements of visible light 13 data collection and its waterproof fixing structure are arranged at the top of the face shell 31, and if the face shell is made of transparent material, a solar panel 132 that can meet the requirements of visible light 13 data collection and its glue-sealed edge fixing structure are arranged inside the top of the face shell. At the same time, the unique product ID number 1301 is pasted on one side of the solar panel, and the product trademark 1302 can be pasted on the other side as required.

[0022] As can be seen from the left of Figure 2, the waterproof fixing structure of the above-mentioned photosensitive device 131 includes: two levels of concentric holes, which are larger on the top and smaller on the bottom, are set on the top of the face shell 31. The lower hole is used to support the photosensitive device 131 and set a through hole to guide the signal pin of the photosensitive device 131 to the inner cavity of the face shell 31. The stepped step is used to stick and support the double-sided frosted quartz glass disc, or directly pour glue into the upper hole 1311 to waterproof and protect the photosensitive device 131 on the outside. The inner side of the face shell is thickened and reinforced to support the supporting base of the photosensitive device 131 and a fence 1312 is set around the signal pin entering the inner cavity to achieve glue sealing and waterproofing of the inner side of the photosensitive device 131.

[0023] Please refer to the lower right figure of Figure 1. When the multi-mode geomagnetic universal main structure A of the utility model is used as an upgraded replacement, the open hard support B0 of the bottom shell B is the top of the sealing ring groove B1 after removing the original open O-shaped or square sealing ring of the bottom shell B. The positions of B0 and B1 are more clearly displayed in Figure 3.

[0024] As can be seen from the left and right figures above in FIG1 , copper nuts 316 are embedded in six equal parts of the bottom 310 of the face shell 31, and docking screw holes are preset in six corresponding parts of the open top 320 of the battery carrier 32. When the two are joined, the holes are tightened one by one through the joining screws 326, wherein the joining screws 326 are non-magnetic and demagnetized 316L stainless steel screws; the battery carrier 32 in the figure has a fixed arm 322 for fixing the power supply battery 2, and a matching pressure strip 321; a thin silicone sheet 20, preferably a waterproof silicone sheet with a uniform thickness of 0.8 mm; at the same time, as can be seen from the left and right figures below in FIG1 , the top of the face shell 31 is configured to be an arch shape to enhance the drainage efficiency.

[0025] After the product is launched, when extremely rare problems occur in individual sections due to the surrounding environment or base station distribution, etc., the special tools and recommended gaskets supporting this utility model can be used for communication optimization. Specifically: The maintenance personnel can detach the main structure A from the bottom shell B using the special tool shown in Figure 6, place the annular gasket C on the open hard support B0 of the bottom shell B, as shown in Figure 3, and then normally screw it back in for further investigation and confirmation of whether the relevant problems have been optimized and improved; the annular gasket C is produced according to the structural characteristics of the specific model of the bottom shell B for the main structure A. Before leaving the factory, the main structure A is pre-tested and calibrated for waterproofing, and the height that the main structure A rises when it is counterclockwise rotated back to its orthogonal 90-degree position at the limit stop position is used to determine the thickness of the annular gasket C, and it is provided to relevant users as a set for use when necessary; specifically, if the waterproofing stroke during calibration is less than 90 degrees, the corresponding gasket is provided at the maximum safe angle under the premise of waterproofing; as shown in Figure 4, in this embodiment, the left side is the normal limit stop position, and the right side is the reference diagram of the actual use state at the orthogonal 90-degree position after communication optimization. At this position, the main structure A has only risen by 0.75 mm.

[0026] In Figure 4, there are three triangular flower installation and disassembly device jacks for the special tool shown in Figure 6 on the top of the front shell 31. Different corner combinations can be prefabricated for these jacks before leaving the factory to meet the security requirements, which will not be elaborated here.

[0027] Figure 5 shows matching design examples of the bottom shells of several old geomagnetics on the current market based on the product structure principle and method introduced in detail in this utility model; from left to right, in Example 1, due to the small size of the product, it can accommodate at most two large-sized lithium batteries and can have a battery life of more than three years; Example 2 matches another bottom shell, and its product is larger in size and can hold at most three large-sized lithium batteries, with a battery life of about five years; Example 3 uses the same bottom shell as Example 2, but the difference is that the front shell uses a transparent material and a solar charging mechanism is used, and it can have a battery life of more than seven years. At the same time, it also adopts a high-profile four-mode, namely geomagnetism + radar + visible light + microphone sound induction to achieve a higher-performance vehicle detection effect.

[0028] The above are only the preferred embodiments of this utility model and are not used to limit this utility model. For those skilled in the art, this utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this utility model shall be included within the scope of the claims of this utility model.

Claims

1. A multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement, characterized in that, include: Main protective shell, geomagnetic + radar + visible light multi-mode vehicle detector, power supply battery; The main protective shell is formed by the face shell in which the multi-mode vehicle detector is installed and the battery carrier supporting the power supply battery at the bottom. The two are connected in such a way that an annular joint plane with a width of not less than 2.5 mm is constructed at the bottom of the face shell and the open top of the battery carrier respectively, and a thin silicone sheet is arranged between the two joint planes. After tightening the joint screws, the silicone sheet is squeezed and deformed freely and unhindered to both sides of the gap to achieve waterproof sealing; the multi-mode geomagnetism is formed by a detachable main structure and a bottom shell buried under the ground, and the screwing method is that the main structure is first adapted to the complementary accommodation space of the bottom shell, and secondly, the outer teeth matching the inner teeth of the bottom shell are arranged on the outer side surface of the face shell enclosing the multi-mode vehicle detector, so that the main structure can be screwed into the bottom shell clockwise under the action of the matching special tool, and stop when the outer bottom of the top of the face shell touches the open hard support of the bottom shell; O attached to the outer wall of the top of the face shell during the rotation introduction process Once the sealing ring is deformed by the lateral left and right clamping of the open inner wall of the bottom shell and the attached outer wall of the surface shell, a waterproof seal is generated between the two, accompanied by a large damping twisting movement, and there is still sufficient, waterproof counterclockwise return twisting stroke until the limit stop to enable future communication adjustment.

2. The multi-mode geomagnetic universal main body structure that can be used for upgrading and replacement as described in claim 1, wherein, Also includes: A microphone and its fixing sealing hole are arranged on the inner side of the top of the face shell, and / or, if the face shell is made of opaque material, a photosensitive device and its waterproof fixing structure that can meet the requirements of visible light data collection are arranged on the top of the face shell; if the face shell is made of transparent material, a solar cell panel that can meet the requirements of visible light data collection and its glue edge sealing fixing structure are arranged on the inner side of the top of the face shell; at the same time, the product unique ID number is pasted on one side of the solar cell panel, and the product trademark can be pasted on the other side as needed.

3. The multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement according to claim 2, characterized in that, The waterproof fixing structure of the photosensitive device includes: two levels of concentric holes, which are larger on the top and smaller on the bottom, are set on the top of the face shell. The lower hole is used to support the photosensitive device and set a through hole to guide the signal pin of the photosensitive device to the inner cavity of the face shell. The stepped step is used to stick and support a double-sided frosted quartz glass disc, or directly pour glue into the upper hole to waterproof and protect the photosensitive device on the outside. The inner side of the face shell is thickened and reinforced to support the supporting base of the photosensitive device and a fence is set around the signal pin entering the inner cavity to achieve glue filling and sealing waterproofing on the inner side of the photosensitive device.

4. A multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement according to any one of claims 1 to 3, characterized in that When the multi-mode geomagnetic universal main body structure is used as an upgraded replacement, the bottom shell open hard support is the top of the sealing ring groove after the original bottom shell open O-shaped or square sealing ring is removed.

5. A multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement according to any one of claims 1 to 3, characterized in that, The communication optimization refers to that after the main structure is installed on the ground, due to poor communication with the distant base station and serious packet loss, the operation and maintenance personnel use special tools to detach the main structure from the bottom shell, put down a ring gasket of a certain thickness on the open hard support of the bottom shell, and then screw it back in normally for use; the thickness is the height that the main structure is raised after it is screwed back counterclockwise to the optimized position of the base station signal at the limit stop position under the premise of waterproofing.

6. A multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement according to any one of claims 1 to 3, characterized in that The battery carrier is provided with a fixing arm for fixing the power supply battery and a matching pressing strip.

7. A multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement according to any one of claims 1 to 3, characterized in that, Embedded copper nuts are provided at the six-equal-part positions at the bottom of the front shell, and docking screw holes are preset at the corresponding six-equal-part positions at the open top of the battery carrier. When the two are joined, they are tightened hole by hole one by one through joining screws; the joining screws are weakly magnetic or non-magnetic stainless steel screws.

8. A multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement according to any one of claims 1 to 3, characterized in that There are three triangular flower-shaped installation and disassembly equipment jacks for special tools on the top of the front shell, and different corner combinations can be preset for the jacks to meet the security requirements.

9. A multi-mode geomagnetic universal main body structure that can be used for upgrading and replacement according to any one of claims 1 to 3, characterized in that The top of the front shell is set as an arched shape to enhance the water drainage efficiency.

10. A multi-mode geomagnetic universal main body structure that can be used for upgrade and replacement according to any one of claims 1 to 3, characterized in that, The thin silicone sheet is a waterproof silicone sheet with a uniform thickness in the range of 0.5 mm to 0.8 mm.

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