Geomagnetic parking space detector based on 4G network

Abstract

The utility model discloses a geomagnetic parking space detector based on 4G network, relates to the geomagnetic parking space detector technology field, and comprises a parking space roadbed, the middle of the top of the parking space roadbed is provided with a mounting groove, the top of the mounting groove is provided with a cover plate, and the middle of the cover plate is provided with a circular groove. By the adoption of the structure, the linkage piece and the installation piece are arranged, when the wheels move to the pressing plate, the guide plate can assist in guiding, the wheels press the pressing plate conveniently, and when the structures such as the pressing plate or the installation shaft are damaged, the top cover can be opened, the concave connecting rod and the linkage shaft can be pulled out, the clamping block is made to be separated from the clamping groove, and the installation shaft is pulled out and replaced with a new one; a new mounting shaft is inserted into an insertion hole through a guide inclined surface, and a limiting spring resets to bounce a clamping block into a clamping groove, so that quick disassembly and assembly are realized, the use convenience and adaptability of the device are improved, the use convenience is further improved, the design of conveniently and quickly replacing a linkage piece is adopted, and the overall use convenience of the device can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of geomagnetic parking space detectors, and in particular relates to a geomagnetic parking space detector based on a 4G network. Background Art

[0002] The geomagnetic parking space detector is an intelligent parking ground sensing device based on geomagnetic induction technology. It senses the changes in the geomagnetic field through geomagnetic sensors to determine the presence of a vehicle. When a vehicle passes by or parks above the detector, the metal structure of the vehicle will cause a slight disturbance to the geomagnetic field. The geomagnetic sensor will sense this change and transmit the signal to the monitoring system. Geomagnetic parking space detectors are widely used in public parking lots, community parking lots, and roadside parking. It can monitor the use of parking spaces in real time and provide convenient parking services for car owners. It can also be connected to terminal devices such as mobile phone APPs to realize online reservations, navigation and other functions, thereby improving the use efficiency of parking lots. In addition, geomagnetic parking space detectors can also be used for traffic signal control, intelligently adjusting the time interval of traffic lights according to changes in vehicle flow, optimizing traffic flow and reducing congestion.

[0003] A Chinese patent with the publication number "CN214752269U" discloses a geomagnetic parking space detector, which includes a roadbed parking space, a brake compartment is provided inside the roadbed parking space, a brake rod slot is provided on the upper side of the roadbed parking space, a brake rod is provided through the brake rod slot, the upper end of the brake rod is connected to a wheel pressure plate, the lower end of the brake rod is connected to a generator, the generator is connected to a battery through a wire, the battery is connected to a detector body through a wire, and the detector body is connected to a wireless transmission module. The wheels of the automobile of the utility model will pass over the wheel pressure plate, squeeze the wheel pressure plate, the brake rod on the wheel pressure plate is pushed downward, and the brake wheel on the brake rod pushes the driving wheel to rotate, so that the generator generates electricity. The structure is simple, no additional power source is required, power consumption is saved, and wiring of the parking space is not required, which improves the safety and practicality of use.

[0004] During the use of the above-mentioned device, the pressure plate is located on the top of the ground and is often compressed by the wheels. The compression spring and the pressure plate are very easy to be damaged during use. The compression spring and the pressure plate are both installed on the ground. Once damaged, they need to be replaced and repaired. However, the integrated design is obviously not convenient for Case to repair and disassemble. It can be seen that it is extremely cumbersome and inconvenient to use during use, so it needs to be improved. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present utility model is to provide a geomagnetic parking space detector based on a 4G network to solve the problems raised by the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A 4G network-based geomagnetic parking space detector comprises a parking space roadbed, a mounting groove is provided in the middle of the top of the parking space roadbed, a cover plate is provided on the top of the mounting groove, a circular groove is provided in the middle of the cover plate, a square frame is fixedly installed in the middle of the mounting groove, a geomagnetic detector is plugged into the square frame, the top of the geomagnetic detector is plugged into the circular groove, and power supply mechanisms are fixedly installed on both sides of the square frame;

[0008] The power supply mechanism includes a micro-generator and a linkage component. The micro-generator is fixedly installed in the middle of both sides of the frame. A connecting shaft is fixedly installed on the outer side of the micro-generator. A transmission gear is fixedly installed on the outer end of the connecting shaft. The linkage component is movably installed on both sides of the installation groove. The top of the linkage component passes through the cover plate. The top of the installation groove is provided with a cover plate, which not only protects the internal components but also ensures the overall aesthetics. A circular groove is specially opened in the middle of the cover plate to provide a precise installation position for the geomagnetic detector. The square frame fixedly installed in the middle of the installation groove is like a solid fortress, guarding the internal geomagnetic detector, and the top of the geomagnetic detector is accurately plugged into the circular groove to ensure The accuracy and stability of its detection is worth mentioning that power supply mechanisms are fixedly installed on both sides of the frame. This innovative design makes the detector self-sufficient and does not require an external power supply. The power supply mechanism includes a micro-generator and a linkage assembly. The micro-generator is fixedly installed in the middle of both sides of the frame and is closely connected to the transmission gear through a connecting shaft, while the linkage assembly is movably installed on both sides of the installation slot, and its top is cleverly passed through the cover plate. When a vehicle passes by, the linkage assembly can respond quickly and drive the micro-generator to generate electricity through the transmission gear, providing a steady supply of power for the geomagnetic detector. This design not only improves the ease of use and independence of the device, but also ensures its stable operation in various environments.

[0009] As a preferred technical solution, mounting holes are provided at the four corners of the cover plate, and bolts are connected to the internal threads of the mounting holes. The cover plate is installed on the top of the mounting groove by bolts. By setting the mounting holes and equipping the mounting holes with bolts, the cover plate can be installed by combining the mounting holes and the bolts, making the cover plate as a whole easy to disassemble, assemble, maintain and overhaul.

[0010] As a preferred technical solution, the linkage assembly includes a skateboard, a rack is fixedly installed on one side of the skateboard close to the transmission gear, the rack and the transmission gear are meshingly connected, the skateboard is slidably connected to both sides of the installation groove, and a linkage part is installed on the upper end of the skateboard through a mounting part. By setting up the linkage assembly, the linkage part can be pressed by the wheel during use of the device, so that the device can automatically store electricity and supply electrical energy, making it convenient to use the device.

[0011] As an optimal technical solution, the mounting member includes a concave frame and a socket, the concave frame is fixedly installed on the upper end of the side of the skateboard away from the transmission gear, the inner part of the concave frame is fixedly installed with limit springs at equal intervals, and the end of the limit spring is fixedly installed with a card block, the socket is opened at the top of the skateboard, the bottom of the linkage member is inserted into the inner part of the socket, the card block is inserted into the lower end side of the linkage member, and the upper end of the card block is provided with a guide inclined surface on the side close to the linkage member, the concave frame is fixedly installed on the upper end of the side of the skateboard away from the transmission gear, providing stable support for the entire mounting member, and the limit springs fixedly installed at equal intervals inside the concave frame not only provide reliable elastic support for the card block, but also ensure that the card block can be quickly reset when subjected to external force.

[0012] As an optimal technical solution, a linkage shaft is fixedly installed on the outer side of the card block, and a concave connecting rod is fixedly installed on the outer end of the linkage shaft. The two groups of the connecting shafts are connected to each other by the concave connecting rod. By setting the concave connecting rod, when it is necessary to disassemble and replace the linkage parts, the linkage shaft can be pulled out by pulling the concave connecting rod. When the linkage shaft is pulled out, the card block can be quickly pulled out from the inside of the card slot, which is convenient for quick disassembly and assembly of the device and convenient for disassembly and assembly and replacement of the linkage parts of the device.

[0013] As a preferred technical solution, the linkage member includes a telescopic spring, which is fixedly installed on both sides of the top of the parking space roadbed, a pressure plate is fixedly installed on the top of the telescopic spring, a mounting shaft is fixedly installed in the middle of the bottom of the pressure plate, the bottom of the mounting shaft is plugged into the inside of the socket, a card slot is opened on one side of the mounting shaft, and the card block is plugged into the inside of the card slot. The telescopic spring is fixedly installed on both sides of the top of the parking space roadbed as a power source of the linkage member, and can be deformed under the pressure of the wheel, thereby providing power for the movement of the pressure plate. The pressure plate is fixedly installed on the top of the telescopic spring. When the wheel presses over the pressure plate, the telescopic spring is compressed, causing the pressure plate to move downward. The mounting shaft serves as a connecting component between the pressure plate and the slide plate, and its bottom is plugged into the inside of the slide plate's socket, thereby achieving a stable connection between the pressure plate and the slide plate.

[0014] As a preferred technical solution, grooves are provided at both ends of the pressure plate, and guide plates are hingedly installed inside the grooves. This detailed design greatly enhances the guidance and stability of the pressure plate. When the wheel presses over the pressure plate, the guide plate can be adaptively adjusted according to the shape and movement direction of the wheel, providing a smooth transition for the wheel and reducing friction and resistance. This not only enables the wheel to press the pressure plate more smoothly, but also improves the durability and service life of the entire device.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] First, the wheel presses the pressure plate, and the pressure plate is pressed to resist the installation shaft and slide downward. The sliding of the slide board can cause the telescopic spring to contract and the rack to move downward. Since the rack and the transmission gear are meshed and transmitted, the rack can assist in driving the transmission gear to rotate. The rotation of the transmission gear can drive the connecting shaft to rotate. The rotation of the connecting shaft can drive the micro generator to operate and assist in power generation. It can automatically generate electricity by driving the vehicle during use, which can improve the overall endurance performance of the device.

[0017] Second, by setting linkage parts and mounting parts, when the wheel moves to the pressure plate, the guide plate can assist in guiding, which is convenient for the wheel to press the pressure plate. When the pressure plate or the mounting shaft and other structures are damaged, the top cover can be opened, and the concave connecting rod and the linkage shaft can be pulled out to disengage the card block from the slot, and the mounting shaft can be pulled out and replaced with a new one. The new mounting shaft is inserted into the jack through the guide slope, and the limit spring is reset to bounce the card block into the slot, so as to realize quick disassembly and assembly, improve the ease of use and adaptability of the device, further improve the ease of use, and the design of facilitating and quickly replacing the linkage parts can improve the overall ease of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model frame, geomagnetic detector and power supply mechanism;

[0020] Figure 3 It is a schematic diagram of the structure of the utility model frame, geomagnetic detector and power supply mechanism when viewed from above;

[0021] Figure 4 It is a schematic diagram of the structure of the power supply mechanism of the utility model in an overall disassembled state.

[0022] Figure numerals: 1. parking space roadbed; 2. mounting groove; 3. cover plate; 4. circular groove; 5. square frame; 6. geomagnetic detector; 7. power supply mechanism; 71. micro generator; 72. linkage assembly; 721. slide plate; 722. rack; 723. linkage member; 7231. telescopic spring; 7232. pressure plate; 7233. mounting shaft; 7234. slot; 7235. groove; 7236. guide plate; 73. connecting shaft; 74. transmission gear; 75. mounting member; 751. concave frame; 752. socket; 753. limit spring; 754. block; 755. guide ramp; 756. linkage shaft; 757. concave connecting rod; 8. mounting hole. DETAILED DESCRIPTION

[0023] Example

[0024] refer to Figures 1 to 4A geomagnetic parking space detector based on a 4G network in this embodiment includes a parking space roadbed 1, a mounting groove 2 is provided in the middle of the top of the parking space roadbed 1, a cover plate 3 is provided on the top of the mounting groove 2, a circular groove 4 is provided in the middle of the cover plate 3, a square frame 5 is fixedly installed in the middle of the mounting groove 2, a geomagnetic detector 6 is plugged into the inside of the square frame 5, the top of the geomagnetic detector 6 is plugged into the inside of the circular groove 4, and power supply mechanisms 7 are fixedly installed on both sides of the square frame 5;

[0025] The power supply mechanism 7 includes a micro generator 71 and a linkage assembly 72. The micro generator 71 is fixedly installed in the middle of both sides of the square frame 5. A connecting shaft 73 is fixedly installed on the outer side of the micro generator 71. A transmission gear 74 is fixedly installed on the outer end of the connecting shaft 73. The linkage assembly 72 is movably installed on both sides of the mounting groove 2. The top of the linkage assembly 72 passes through the cover plate 3. The top of the mounting groove 2 is provided with a cover plate 3, which not only protects the internal components but also ensures the overall aesthetics. In the middle of the cover plate 3, a circular groove 4 is specially opened to provide a precise installation position for the geomagnetic detector 6. The square frame 5 fixedly installed in the middle of the mounting groove 2 is like a solid fortress, guarding the internal geomagnetic detector 6, and the top of the geomagnetic detector 6 is accurately plugged into the circular groove 4 to ensure its detection. The accuracy and stability of the detection are improved. It is worth mentioning that power supply mechanisms 7 are fixedly installed on both sides of the frame 5. This innovative design makes the detector self-sufficient and does not require an external power supply. The power supply mechanism 7 includes a micro generator 71 and a linkage assembly 72. The micro generator 71 is fixedly installed in the middle of both sides of the frame 5 and is closely connected to the transmission gear 74 through a connecting shaft 73, while the linkage assembly 72 is movably installed on both sides of the mounting groove 2, and its top is cleverly passed through the cover plate 3. When a vehicle passes by, the linkage assembly 72 can respond quickly and drive the micro generator 71 to generate electricity through the transmission gear 74, thereby providing a continuous source of power for the geomagnetic detector 6. This design not only improves the ease of use and independence of the device, but also ensures its stable operation in various environments.

[0026] refer to Figure 1 The four corners of the cover plate 3 are provided with mounting holes 8, the internal threads of the mounting holes 8 are connected with bolts, and the cover plate 3 is installed on the top of the mounting groove 2 by bolts. By setting the mounting holes 8 and equipping the mounting holes 8 with bolts, the cover plate 3 can be installed by matching the mounting holes 8 with the bolts, so that the cover plate 3 as a whole is easy to disassemble and maintain, and can improve the overall convenience of use of the device.

[0027] refer to Figure 1-Figure 4The linkage assembly 72 includes a slide plate 721, and a rack 722 is fixedly installed on one side of the slide plate 721 close to the transmission gear 74. The rack 722 and the transmission gear 74 are meshed and connected. The slide plate 721 is slidably connected to both sides of the installation groove 2. The upper end of the slide plate 721 is installed with a linkage member 723 through a mounting member 75. By setting the linkage assembly 72, during the use of the device, the linkage member 723 can be pressed by the wheel to prompt the slide plate 721 to drive the rack 722 to move up and down. The up and down movement of the rack 722 and the slide plate 721 can assist in the friction and drive the rack 722 and the transmission gear 74 to mesh and transmit with each other, and can trigger the micro-generator 71 to rotate when the wheel is pressed, so that the device can automatically store electricity and supply electric energy, which is convenient for the use of the device.

[0028] refer to Figure 1-Figure 4 The mounting member 75 comprises a concave frame 751 and a socket 752. The concave frame 751 is fixedly mounted on the upper end of the side of the slide plate 721 away from the transmission gear 74. The limiting springs 753 are fixedly mounted at equal intervals inside the concave frame 751. A clamping block 754 is fixedly mounted on the end of the limiting spring 753. The socket 752 is opened at the top of the slide plate 721. The bottom of the linkage member 723 is inserted into the inside of the socket 752. The clamping block 754 is inserted into one side of the lower end of the linkage member 723. A guide inclined surface 755 is provided on the upper end of the clamping block 754 close to the linkage member 723. The concave frame 751 is fixedly mounted on the upper end of the side of the slide plate 721 away from the transmission gear 74, providing a stable support for the entire mounting member 75. The limiting springs 753 fixedly mounted at equal intervals inside the concave frame 751 not only provide reliable elastic support for the clamping block 754, but also ensure that the clamping block When the locking nut 752 is in place, the locking nut 754 is in a position to be fixed to the top of the locking nut 754. The locking nut 754 is a key component of the mounting member 75. Under the action of the limiting spring 753, the locking nut 754 can be tightly plugged into the lower end of the linkage member 723, thereby achieving a stable connection between the linkage member 723 and the slide plate 721. At the same time, a guide slope 755 is provided on the upper end of the blocking nut 754, close to the side of the linkage member 723, which not only facilitates the insertion of the linkage member 723, but also automatically adjusts the position of the blocking nut 754 during the insertion process, thereby ensuring a smooth installation process. The insertion hole 752 is provided at the top of the slide plate 721, and its size matches the bottom of the linkage member 723, so that the linkage member 723 can be easily and accurately plugged into it. This design not only improves the accuracy of installation, but also simplifies the installation steps and improves work efficiency.

[0029] refer to Figure 1-Figure 4A linkage shaft 756 is fixedly installed on the outer side of the block 754, and a concave connecting rod 757 is fixedly installed on the outer end of the linkage shaft 756. The two sets of connecting shafts 73 are connected to each other through the concave connecting rod 757. By setting the concave connecting rod 757, when it is necessary to disassemble and replace the linkage part 723, the linkage shaft 756 can be pulled out by pulling the concave connecting rod 757. When the linkage shaft 756 is pulled out, the block 754 can be quickly pulled out from the inside of the card slot 7234, which is convenient for quick disassembly and assembly of the device and convenient for disassembly and assembly of the linkage part 723 of the device.

[0030] refer to Figure 1-Figure 4 The linkage member 723 includes a telescopic spring 7231, which is fixedly installed on both sides of the top of the parking space roadbed 1. A pressure plate 7232 is fixedly installed on the top of the telescopic spring 7231, and a mounting shaft 7233 is fixedly installed in the middle of the bottom of the pressure plate 7232. The bottom of the mounting shaft 7233 is inserted into the inside of the socket 752. A card slot 7234 is opened on one side of the mounting shaft 7233, and the card block 754 is inserted into the inside of the card slot 7234. The telescopic spring 7231 is fixedly installed on both sides of the top of the parking space roadbed 1. As the power source of the linkage member 723, it can be deformed under the pressure of the wheel, thereby providing power for the movement of the pressure plate 7232. The pressure plate 7232 is fixedly mounted on the top of the telescopic spring 7231. When the wheel presses over the pressure plate 7232, the telescopic spring 7231 is compressed, causing the pressure plate 7232 to move downward. The mounting shaft 7233 serves as a connecting component between the pressure plate 7232 and the slide plate 721. Its bottom is plugged into the socket 752 of the slide plate 721, thereby achieving a stable connection between the pressure plate 7232 and the slide plate 721. When the pressure plate 7232 moves downward, the mounting shaft 7233 will slide in the socket 752, thereby driving the slide plate 721 to move. This design ensures the accuracy and reliability of power transmission. The card slot 7234 is provided on one side of the mounting shaft 7233, and cooperates with the card block 754 to achieve the locking function between the mounting shaft 7233 and the slide plate 721. When the installation shaft 7233 is inserted into the insertion hole 752, the block 754 is guided by the guide slope 755 and automatically inserted into the slot 7234, thereby firmly fixing the installation shaft 7233 in the insertion hole 752. This locking mechanism not only improves the overall stability of the device, but also avoids loosening or falling off during use.

[0031] refer to Figure 1-Figure 4, grooves 7235 are provided at both ends of the pressure plate 7232, and guide plates 7236 are hingedly installed inside the grooves 7235. Guide plates 7236 are hingedly installed inside the grooves 7235. This detail design greatly enhances the guidance and stability of the pressure plate 7232. When the wheel presses over the pressure plate 7232, the guide plate 7236 can be adaptively adjusted according to the shape and movement direction of the wheel, providing a smooth transition for the wheel and reducing friction and resistance. This not only enables the wheel to press the pressure plate 7232 more smoothly, but also improves the durability and service life of the entire device. At the same time, the presence of the guide plate 7236 can effectively disperse the pressure of the wheel on the pressure plate 7232, making the pressure distribution more uniform, avoiding damage or deformation caused by excessive local force on the pressure plate 7232, which further enhances the stability and reliability of the device.

[0032] Principle and advantages of use: By setting the power supply mechanism 7, the device can be used to press the pressure plate 7232 through the wheel during use. The pressure plate 7232 can be pressed to resist the installation shaft 7233 and the slide plate 721 to slide downward. The slide plate 721 can slide down to cause the telescopic spring 7231 to contract and the rack 722 to move downward. Since the rack 722 and the transmission gear 74 are meshed and transmitted, the rack 722 can assist in driving the transmission gear 74 to rotate. The rotation of the transmission gear 74 can drive the connecting shaft 73 to rotate. The rotation of the connecting shaft 73 can drive the micro generator 71 to operate and assist in power generation. It can automatically generate electricity by driving the vehicle during use, which can improve the overall endurance performance of the device. In addition, the device adopts LTE UE-Category 1 geomagnetism instead of Nb geomagnetism, which can have a higher communication rate and a wider coverage range. LTE UE-Category 1 geomagnetism depends on the coverage range of the LTE UE-Category 1 network. Its deployed network covers more and has better signal. 1. Geomagnetism uses higher-speed communication technology, which can provide faster data transmission rate and better real-time performance, and is suitable for application scenarios that require fast response;

[0033] By setting the linkage member 723 and the mounting member 75, when the wheel moves to the pressure plate 7232 during use of the device, the guide plate 7236 inside the groove 7235 can assist in guiding, so that the wheel can better press the pressure plate 7232. In addition, if the pressure plate 7232 or the mounting shaft 7233 and other structures are damaged during use, the top cover can be opened by loosening the bolts. At this time, the concave connecting rod 757 can be pulled outward to move, and the linkage shaft 756 can be pulled synchronously by the concave connecting rod 757 to pull the card block 754 out of the card slot 7234. At this time, the mounting shaft 7233 can be pulled out from the inside of the socket 752, and a new one can be inserted. The installation shaft 7233 is inserted into the interior of the socket 752, and the bottom of the installation shaft 7233 is guided by the guide slope 755. At this time, the guide of the guide slope 755 can contact the block 754 to compress the limit spring 753 to contract. At this time, the installation shaft 7233 can be completely inserted into the interior of the socket 752. When the block 754 and the slot 7234 are in contact, the limit spring 753 is reset to contact the block 754 to bounce it into the slot 7234, so that the device can quickly disassemble and assemble the linkage part 723 when the linkage part 723 is damaged, which can improve the overall ease of use and adaptability of the device, and further improve the overall ease of use of the device.

Claims

1. A geomagnetic parking space detector based on a 4G network, comprising a parking space roadbed (1), characterized in that: A mounting groove (2) is provided in the middle of the top of the parking space roadbed (1), a cover plate (3) is provided on the top of the mounting groove (2), a circular groove (4) is provided in the middle of the cover plate (3), a square frame (5) is fixedly installed in the middle of the mounting groove (2), a geomagnetic detector (6) is plugged into the inside of the square frame (5), the top of the geomagnetic detector (6) is plugged into the inside of the circular groove (4), and power supply mechanisms (7) are fixedly installed on both sides of the square frame (5); The power supply mechanism (7) comprises a micro-generator (71) and a linkage assembly (72); the micro-generator (71) is fixedly mounted at the middle of both sides of the frame (5); a connecting shaft (73) is fixedly mounted on the outer side of the micro-generator (71); a transmission gear (74) is fixedly mounted on the outer end of the connecting shaft (73); the linkage assembly (72) is movably mounted on both sides of the installation groove (2); and the top of the linkage assembly (72) passes through the cover plate (3).

2. The geomagnetic parking space detector based on 4G network according to claim 1, characterized in that: The four corners of the cover plate (3) are each provided with a mounting hole (8), the internal threads of the mounting holes (8) are connected with bolts, and the cover plate (3) is mounted on the top of the mounting groove (2) by means of the bolts.

3. The geomagnetic parking space detector based on 4G network according to claim 1, characterized in that: The linkage assembly (72) comprises a slide plate (721), a rack (722) being fixedly mounted on one side of the slide plate (721) close to the transmission gear (74), the rack (722) being meshingly connected to the transmission gear (74), the slide plate (721) being slidably connected to both sides of the installation groove (2), and a linkage member (723) being mounted on the upper end of the slide plate (721) via a mounting member (75).

4. The geomagnetic parking space detector based on 4G network according to claim 3, characterized in that: The mounting member (75) comprises a concave frame (751) and a socket (752); the concave frame (751) is fixedly mounted on the upper end of the side of the slide plate (721) away from the transmission gear (74); limit springs (753) are fixedly mounted at equal intervals inside the concave frame (751); a clamping block (754) is fixedly mounted on the end of the limit spring (753); the socket (752) is provided on the top of the slide plate (721); the bottom of the linkage member (723) is plugged into the socket (752); the clamping block (754) is plugged into one side of the lower end of the linkage member (723); and a guide inclined surface (755) is provided on the upper end of the clamping block (754) close to the linkage member (723).

5. The 4G network-based geomagnetic parking space detector according to claim 4, characterized in that: A linkage shaft (756) is fixedly mounted on the outer side of the clamping block (754), a concave connecting rod (757) is fixedly mounted on the outer end of the linkage shaft (756), and the two groups of connecting shafts (73) are connected to each other via the concave connecting rod (757).

6. The geomagnetic parking space detector based on 4G network according to claim 5, characterized in that: The linkage member (723) comprises a telescopic spring (7231), wherein the telescopic spring (7231) is fixedly installed on both sides of the top of the parking space roadbed (1), a pressure plate (7232) is fixedly installed on the top of the telescopic spring (7231), a mounting shaft (7233) is fixedly installed in the middle of the bottom of the pressure plate (7232), the bottom of the mounting shaft (7233) is plugged into the inside of the plug hole (752), a card slot (7234) is provided on one side of the mounting shaft (7233), and the card block (754) is plugged into the inside of the card slot (7234).

7. The geomagnetic parking space detector based on 4G network according to claim 6, characterized in that: Grooves (7235) are provided at both ends of the pressure plate (7232), and guide plates (7236) are hingedly installed inside the grooves (7235).

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