Waterproof cover and waterproof method for automobile in underground garage

Abstract

The invention discloses a waterproof cover for an underground garage automobile and a waterproof method. The waterproof cover comprises a waterproof cover body, an automatic air supply device, a control device, a self-locking device and a detection device, and the automatic air supply device, the control device, the self-locking device and the detection device are all fixed to the bottom of the waterproof cover body; the waterproof cover body is used for conducting waterproof protection on vehicles parked in the waterproof cover body. The control device is used for driving the waterproof cover body to open or close; after the waterproof cover body is opened in place, the waterproof cover body is locked by the self-locking device; after the waterproof cover body is locked by the self-locking device, the automatic air supplementing device is used for supplementing air into the waterproof cover body and keeping the air in the waterproof cover body in a safe volume; the detection device is used for detecting the accumulated water level height, the vehicle chassis height, the accumulated water pressure and the vehicle parking state in the waterproof cover body. The control device controls the waterproof cover body to be opened and the automatic air supply device to supply air according to information detected by the detection device, so that the vehicle is waterproof.

Description

Technical Field

[0001] This invention relates to the field of automotive waterproofing technology, and more particularly to a waterproof cover for cars in underground garages and a waterproofing method. Background Technology

[0002] When urban rainfall causes waterlogging or flooding, vehicles parked in fixed parking spaces such as underground garages and low-lying parking spaces are easily submerged and flooded, causing the water level to rise above the vehicle's chassis. This can lead to vehicle damage or total loss, resulting in property loss for the vehicle owner.

[0003] In existing technologies, to prevent vehicles parked in fixed parking spaces such as underground garages or low-lying parking areas from being submerged, waterproof covers are typically used to protect them. These covers usually maintain a safe air volume within the cover through automatic air replenishment, keeping the vehicle's chassis above the water level to achieve protection. However, existing waterproof covers have poor sealing performance and cannot withstand the pressure of deep water, posing a risk of leakage and failing to completely isolate the vehicle from the water. Furthermore, when water leaks into the cover, it is impossible to effectively monitor the water ingress, making it impossible to accurately control the air volume inside. In addition, the waterproof covers are generally manually placed on the vehicles, which is inefficient, provides untimely protection, and is inconvenient to use, potentially affecting the protective effect. Moreover, the limited distance the car chassis can be raised makes effective protection impossible when the garage is completely flooded.

[0004] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art: Existing waterproof covers are not waterproof and cannot adequately meet users' needs. Summary of the Invention

[0005] The purpose of this invention is to provide a waterproof cover and waterproofing method for cars in underground parking garages, thereby solving the technical problem that existing waterproof covers have poor waterproofing performance and cannot adequately meet user needs. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a waterproof cover for a car in an underground garage, comprising a waterproof cover body, an automatic air replenishment device, a control device, a self-locking device, and a detection device, wherein the automatic air replenishment device, the control device, the self-locking device, and the detection device are all fixed to the bottom of the waterproof cover body. The waterproof cover body is used to provide waterproof protection for vehicles parked inside. The control device is used to drive the waterproof cover body to open or close; Once the waterproof cover body is fully opened, the self-locking device is used to lock the waterproof cover body. When the waterproof cover body is locked by the self-locking device, the automatic air replenishment device is used to replenish air into the waterproof cover body and keep the air inside the waterproof cover body within a safe volume. The detection device is used to detect the water level inside the waterproof cover, the vehicle chassis height, the water pressure, and the vehicle's parking status.

[0007] Optionally, the waterproof cover body includes a cover body, a base, and multiple sets of support rod assemblies. Each set of support rod assemblies is fixedly connected to the cover body, and each set of support rod assemblies is movably connected to the control device. When the cover body is opened to the position by the support rod assemblies, the cover body and the base cooperate with each other to form a waterproof space to accommodate the vehicle. The base includes a receiving groove, a limiting groove, a limiting block, and an inclined plate. The receiving groove is disposed on the periphery of the base and is used to place the support rod assembly and the cover. The limiting block is fixed in the limiting groove, which is corresponding to the wheel of the vehicle. The inclined plate is disposed on the first end of the base.

[0008] Optionally, in each set of support rod assemblies, the support rod assembly includes a telescopic rod, two rotating rods, two compression springs, and two limiting sleeves. Each of the two rotating rods is provided with a compression spring inside. The two ends of the telescopic rod are inserted into the corresponding rotating rods, and the two compression springs are respectively sleeved on the two ends of the corresponding telescopic rods. A limiting sleeve is fixedly connected to the first end of each of the two rotating rods, and the second end of each of the two rotating rods is movably connected to the control device.

[0009] Optionally, the automatic gas replenishment device includes a gas tank, a pressure gauge, a safety valve, a filling valve, a pressure reducing valve, a pressure reducing valve gauge, a solenoid valve, and a gas outlet pipe. The gas tank is fixedly connected to the base. The pressure gauge, the pressure reducing valve, and the solenoid valve are fixedly connected to the gas tank in series through the gas outlet pipe. The pressure reducing valve gauge is fixedly connected to the pressure reducing valve. The filling valve and the safety valve are both connected to the pressure gauge.

[0010] Optionally, the control device includes a control box, a transmission box, a drive component, a drive shaft, a transmission shaft, a reducer, a coupling, a seal, and a waterproof cable connector. The transmission box and the control box are either an integral structure or a fixedly connected structure, and both the transmission box and the control box are fixed to the bottom of the base. The reducer is fixed inside the transmission box, the drive component is fixedly connected to the reducer, the drive shaft passes through the reducer and the transmission box, and the drive shaft is fixedly connected to the reducer. The seal is fixedly connected at the connection between the drive shaft and the transmission box. Both ends of the drive shaft are fixedly connected to the first end of the corresponding transmission shaft via the coupling. The second end of the transmission shaft passes through the receiving groove and is movably connected to the base, and the second end of the transmission shaft is movably connected to each set of support rod assemblies. The waterproof cable connector is fixed to one end of the control box.

[0011] Optionally, the self-locking device includes a plurality of locking components, each of which is fixedly connected to the base, and the first end of each locking component passes through a corresponding through hole structure on the base and extends into the receiving groove; In each of the locking components, the locking component includes a latch, a latch, a sensor switch, an electromagnet, a latch spring, a latch spring, and a fixing base. The latch and the latch are both movably connected to the fixing base, and the latch abuts against the latch. One end of the latch spring is fixedly connected to the fixing base, and the other end of the latch spring is fixedly connected to the latch. One end of the latch spring is fixedly connected to the fixing base, and the other end of the latch spring is fixedly connected to the latch. The sensor switch and the electromagnet are both fixedly connected to the fixing base. One end of the electromagnet corresponds to the lower end of the latch. The sensor switch and the electromagnet are arranged adjacent to each other. The fixing base is fixedly connected to the base.

[0012] Optionally, the detection device includes a water level sensor assembly, an ultrasonic sensor, a water pressure sensor, and a vehicle limit sensor assembly; The water level sensor assembly is used to detect the water level height inside the waterproof cover body. The water level sensor assembly includes a magnetostrictive sensor, a mounting base, a magnetic ring, and a floating block. The mounting base is fixed on the base, the magnetostrictive sensor is fixed on the mounting base, and the probe of the magnetostrictive sensor passes through the mounting base. The magnetic ring is sleeved on the probe and is movably connected to the probe. The floating block is sleeved and fixed on the magnetic ring. The ultrasonic sensor is used to detect the height of the vehicle chassis inside the waterproof cover body, and the water pressure sensor is used to detect the water pressure of the accumulated water inside the waterproof cover body. Both the ultrasonic sensor and the water pressure sensor are fixed on the base. The vehicle limit sensor assembly is used to detect the parking status of the vehicle inside the waterproof cover body. The vehicle limit sensor assembly includes multiple photoelectric sensors that are opposite each other, and the multiple photoelectric sensors are respectively disposed at the four corners of the limit groove wall.

[0013] Optionally, it also includes an optical axis, which is fixed to the top of the garage and is correspondingly arranged with the waterproof cover body. The optical axis is used to limit the length of the telescopic rod.

[0014] A method for waterproofing a car in an underground parking garage, applied to a waterproof cover for a car in an underground parking garage as described in any one of the nine claims above, the method comprising: The vehicle is parked on the waterproof cover body. The detection device detects the parking status of the vehicle inside the waterproof cover body and adjusts the vehicle according to the detected parking status so that the vehicle is parked in the correct position. Once the vehicle is parked in the correct position, the detection device detects and records the height of the vehicle chassis inside the waterproof cover body, and the detection device also detects the water level inside the waterproof cover body in real time. When the detection device detects the presence of the accumulated water level, the control device controls the waterproof cover to open and cover the vehicle. Once the waterproof cover body is fully opened, the self-locking device locks and secures the waterproof cover body. Simultaneously, the control device controls the automatic air replenishment device to replenish air into the waterproof cover body based on the vehicle chassis height and the water level, so that the air inside the waterproof cover body is kept within a safe volume, thus completing the waterproof protection for the vehicle parked inside the waterproof cover body.

[0015] Optionally, the control device controls the automatic air replenishment device to replenish air into the waterproof cover body according to the vehicle chassis height and the water level, so as to keep the air inside the waterproof cover body within a safe volume, including: The constant water level h inside the waterproof cover body is determined based on the vehicle chassis height. Based on the constant water level h inside the waterproof cover body and the size parameters of the waterproof cover body, determine the volume inside the waterproof cover body that is not infiltrated; When the water level exceeds the constant water level h, the amount of air replenishment by the automatic air replenishment device is determined based on the increase in the water level, and the automatic air replenishment device is controlled to replenish air into the waterproof cover body according to the amount of air replenishment, so as to keep the air inside the waterproof cover body within a safe volume.

[0016] Implementing one of the above-described technical solutions of the present invention has the following advantages or beneficial effects: This invention uses a detection device to monitor the parking status of the vehicle and the water level inside the waterproof cover in real time. This enables the control device to automatically open the waterproof cover and completely cover the vehicle. The waterproof cover is then locked in place by a self-locking device. An automatic air replenishment device replenishes air into the waterproof cover based on the detected water level, vehicle chassis height, and water pressure, thus completing the waterproof protection for the vehicle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a first structural schematic diagram of Embodiment 1 of the present invention; Figure 2 This is a first perspective view of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the second structure of Embodiment 1 of the present invention; Figure 4 This is a second perspective view of Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the support rod assembly according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the automatic air replenishment device according to Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the control device structure according to Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the released state of the locking component in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the locking state of the locking component according to Embodiment 1 of the present invention; Figure 10 This is a flowchart of Embodiment 2 of the present invention; Figure 11 This is a cross-sectional schematic diagram of the waterproof cover body in Embodiment 2 of the present invention when it is open; Figure 12 This is a top view of the waterproof cover body according to Embodiment 2 of the present invention; Figure 13 This is a schematic diagram of the compression deformation of the waterproof cover body according to Embodiment 2 of the present invention; Figure 14 This is a schematic diagram of the waterproof cover body with raised bottom and no compression deformation according to Embodiment 2 of the present invention.

[0018] In the diagram: 1. Waterproof cover body; 11. Cover body; 12. Base; 121. Receiving groove; 122. Limiting groove; 123. Limiting block; 124. Inclined plate; 125. Through-hole structure; 13. Support rod assembly; 131. Telescopic rod; 132. Rotating rod; 133. Compression spring; 134. Limiting sleeve; 2. Automatic air replenishment device; 21. Air tank; 22. Air pressure gauge; 23. Safety valve; 24. Inflation valve; 25. Pressure reducing valve; 26. Pressure reducing valve pressure gauge; 27. Solenoid valve; 28. Air outlet pipe; 3. Control device; 31. Control box; 32. Transmission box; 33. Drive component; 34. 35. Drive shaft; 36. Transmission shaft; 37. Reducer; 38. Coupling; 39. Seal; 4. Waterproof cable connector; 50. Self-locking device; 41. Locking assembly; 411. Lock tongue; 412. Buckle; 413. Inductive switch; 414. Electromagnet; 415. Lock tongue tension spring; 416. Buckle tension spring; 417. Mounting base; 51. Detection device; 51. Water level sensor assembly; 511. Magnetostrictive displacement sensor; 512. Mounting base; 513. Magnetic ring; 514. Floating block; 52. Ultrasonic sensor; 53. Water pressure sensor; 54. Vehicle limit sensor assembly; 6. Optical shaft. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, various exemplary embodiments described below will be referenced to the accompanying drawings, which form part of the exemplary embodiments, illustrating various exemplary embodiments that may be used to implement the present invention. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. It should be understood that they are merely examples of processes, methods, and apparatuses consistent with some aspects of the present invention disclosed as detailed in the appended claims, and other embodiments may be used, or structural and functional modifications may be made to the embodiments listed herein without departing from the scope and spirit of the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the referred element must have a specific orientation, or be constructed and operated in a specific orientation. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. The term "multiple" means two or more. The terms "connected" and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, communication connections, direct connections, indirect connections through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more of the related listed items. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] To illustrate the technical solution described in this invention, specific embodiments are described below, showing only the parts related to the embodiments of this invention.

[0022] Example 1: like Figures 1 to 9 As shown, the present invention provides a waterproof cover for cars in an underground garage, including a waterproof cover body 1, an automatic air replenishment device 2, a control device 3, a self-locking device 4, and a detection device 5. The automatic air replenishment device 2, the control device 3, the self-locking device 4, and the detection device 5 are all fixed to the bottom of the waterproof cover body 1. The waterproof cover body 1 is used to provide waterproof protection for vehicles parked inside. Control device 3 is used to drive the waterproof cover body 1 to open or close; Once the waterproof cover body 1 is fully opened, the self-locking device 4 is used to lock the waterproof cover body 1. When the waterproof cover body 1 is locked by the self-locking device 4, the automatic air replenishment device 2 is used to replenish air into the waterproof cover body 1 and keep the air inside the waterproof cover body 1 within a safe volume. The detection device 5 is used to detect the water level inside the waterproof cover body 1, the vehicle chassis height, the water pressure, and the vehicle parking status.

[0023] Specifically, the waterproof cover body 1 has two states: open and closed. In the open state, the cover 11 is opened by the support rod assembly 13, and the opening of the cover 11 fits against the base 12 to form a waterproof space to accommodate the vehicle. In the closed state, the cover 11 and multiple sets of support rod assemblies 13 are completely retracted into the receiving groove 121 (as described below). When the waterproof cover body 1 is closed, the vehicle can drive onto the base 12 for parking. When the waterproof cover body 1 is open, it provides waterproof protection for the vehicle parked inside. After the waterproof cover body 1 is fully opened, it is locked and fixed by the self-locking device 4 to ensure structural stability and improve the protective effect. After the waterproof cover body 1 is locked by the self-locking device 4, the automatic air replenishment device 2 replenishes a certain volume of air into the waterproof cover body 1, keeping the air inside within a safe volume, thus ensuring that the water level remains below the vehicle's chassis and protecting the vehicle.

[0024] This invention uses a detection device 5 to detect the parking status of the vehicle and the water level inside the waterproof cover body 1 in real time, so that the control device 3 can drive the waterproof cover body 1 to open automatically and completely cover the vehicle. The waterproof cover body 1 is then locked and fixed by a self-locking device 4. The automatic air replenishment device 2 replenishes air into the waterproof cover body 1 according to the detected water level, vehicle chassis height and water pressure, thus completing the waterproof protection of the vehicle.

[0025] As an optional implementation, the waterproof cover body 1 includes a cover 11, a base 12, and multiple sets of support rod assemblies 13. Each set of support rod assemblies 13 is fixedly connected to the cover 11 and movably connected to the control device 3. When the cover 11 is opened to its position by the support rod assemblies 13, the cover 11 and the base 12 cooperate to form a waterproof space to accommodate the vehicle. The base 12 includes a receiving groove 121, a limiting groove 122, a limiting block 123, and an inclined plate 124. The receiving groove 121 is disposed on the periphery of the base 12 and is used to place the support rod assemblies 13 and the cover 11. The limiting block 123 is fixed in the limiting groove 122, which corresponds to the vehicle's wheels. The inclined plate 124 is disposed on the first end of the base 12. Specifically, the cover 11 is made of a flexible waterproof material, which allows the cover 11 to be folded and stored in the receiving groove 121 when there is no water accumulation. Each set of support rod assemblies 13 is fixedly connected to the cover 11. When multiple sets of support rod assemblies 13 are controlled by the control device 3 and rotated apart, the cover 11 can be opened to cover the vehicle parked on the base 12. The limiting groove 122 is set to correspond to the vehicle's wheels to ensure that the vehicle can be correctly parked in the middle of the base 12. The limiting block 123 can limit the vehicle's front and rear movement to prevent one end of the vehicle from being outside the receiving groove 121, ensuring that the cover 11 will not interfere with the vehicle during opening (i.e., the cover 11 will not collide with the vehicle and can completely cover the vehicle). The inclined plate 124 has a certain angle with the ground to facilitate the vehicle to drive smoothly onto the base 12.

[0026] As an optional implementation, each support rod assembly 13 includes a telescopic rod 131, two rotating rods 132, two compression springs 133, and two limiting sleeves 134. Each of the two rotating rods 132 has a compression spring 133 inside. The two ends of the telescopic rod 131 are inserted into the corresponding rotating rod 132, and the two compression springs 133 are respectively sleeved on the two ends of the corresponding telescopic rod 131. A limiting sleeve 134 is fixedly connected to the first end of each of the two rotating rods 132, and the second ends of both rotating rods 132 are movably connected to the control device 3. Specifically, the second ends of the two rotating rods 132 are movably connected to both sides of the control device 3 via connectors, and a limiting sleeve 134 is fixed to the first end of each support rod. The control device 3 can drive the two rotating rods 132 to rotate synchronously, thereby driving the telescopic rod 131 to rotate stably. The rotating rod 132 has a hollow structure, while the telescopic rod 131 has an n-shaped structure. A compression spring 133 is placed inside each rotating rod 132, and both ends of the telescopic rod 131 are inserted into the first ends of the two rotating rods 132, respectively. During the rotation of the support rod assembly 13 controlled by the control device 3, if the telescopic rod 131 collides with an object (such as the optical axis 6 or the garage roof), it retracts into the rotating rod 132, ensuring that the support rod assembly 13 can avoid obstacles above the waterproof cover body 1 before continuing to rotate and opening the cover 11. During the rotation of the support rod assembly 13, after the telescopic rod 131 leaves the obstacle above, it can eject the rotating rod 132 under the action of the compression spring 133 and be fixed by the limiting sleeve 134, ensuring that the telescopic rod 131 does not detach from the rotating rod 132. The support rod assembly 13 has a telescopic and deformable structure, allowing the waterproof cover to adapt to garages of different heights.

[0027] As an optional implementation, the automatic air replenishment device 2 includes an air tank 21, a pressure gauge 22, a safety valve 23, an inflation valve 24, a pressure reducing valve 25, a pressure reducing valve gauge 26, a solenoid valve 27, and an outlet pipe 28. The air tank 21 is fixedly connected to the base 12. The pressure gauge 22, pressure reducing valve 25, and solenoid valve 27 are connected in series to the air tank 21 via the outlet pipe 28. The pressure reducing valve gauge 26 is fixedly connected to the pressure reducing valve 25. The inflation valve 24 and the safety valve 23 are both connected to the pressure gauge 22. Specifically, the air tank 21 is used to store air. The number of air tanks 21 can be adaptively set according to actual needs. Multiple air tanks 21 are interconnected. In this embodiment, there are three air tanks 21. The pressure gauge 22, pressure reducing valve 25, and solenoid valve 27 are connected in series to the air tank 21 via the outlet pipe 28, with the outlet end of the outlet pipe 28 facing inwards towards the waterproof cover body 1. The pressure gauge 22 is used to detect the air pressure status of the automatic air replenishment device 2 in real time. Pressure reducing valve 25 is used to reduce and stabilize pressure, keeping the pressure at the outlet of vent pipe 28 constant, protecting downstream devices, and preventing gas backflow into the gas source. Solenoid valve 27 controls the shut-off of the gas path, allowing control of the amount of gas supplied to the waterproof cover body 1 based on information such as the water level, vehicle chassis height, and water pressure detected by the detection device 5, ensuring the air inside the waterproof cover body 1 remains within a safe volume. Inflation valve 24 is connected to the first side of pressure gauge 22 via an air pipe, and is connected to gas tank 21 via pressure gauge 22. When the gas level in gas tank 21 falls below a set lower limit, inflation valve 24 automatically, quickly, and quantitatively supplies outside air to gas tank 21, restoring the gas level to the set safe storage capacity, ensuring a certain volume of gas is stored in gas tank 21. Safety valve 23 is connected to the second side of pressure gauge 22 via an air pipe. When air is added to gas tank 21 through inflation valve 24 or when gas stored in gas tank 21 is used, if pressure gauge 22 detects that the pressure exceeds the preset upper limit, safety valve 23 can automatically open the cover to release air, achieving overpressure protection and stabilizing the air pressure of automatic air replenishment device 2 at the allowable pressure, preventing dangerous situations such as tank explosion or pipe burst. The air replenishment amount of automatic air replenishment device 2 is calculated according to the gas state equation to ensure the safety of the water level inside the waterproof cover body 1, with the internal liquid level lower than the vehicle chassis.

[0028] As an optional implementation, the control device 3 includes a control box 31, a transmission box 32, a drive component 33, a drive shaft 34, a transmission shaft 35, a reducer 36, a coupling 37, a seal 38, and a waterproof cable connector 39. The transmission box 32 and the control box 31 are either an integral structure or a fixedly connected structure, and both the transmission box 32 and the control box 31 are fixed to the bottom of the base 12. The reducer 36 is fixed inside the transmission box 32. The drive component 33 is fixedly connected to the reducer 36. The drive shaft 34 passes through the reducer 36 and the transmission box 32, and is fixedly connected to the reducer 36. The seal 38 is fixedly connected at the connection between the drive shaft 34 and the transmission box 32. Both ends of the drive shaft 34 are fixedly connected to the first end of the corresponding transmission shaft 35 through the coupling 37. The second end of the transmission shaft 35 passes through the receiving groove 121 and is movably connected to the base 12. The second end of the transmission shaft 35 is also movably connected to each set of support rod assemblies 13. The waterproof cable connector 39 is fixed to one end of the control box 31. Specifically, the transmission box 32 and the control box 31 are integrated into a single structure, facilitating manufacturing and ensuring stability when fixed to the base 12. The transmission box 32 and control box 31 are fixedly connected, allowing for easy replacement or repair of either one. The drive component 33 and the reducer 36 are both housed within the transmission box 32. The reducer 36 is fixedly connected to the transmission box 32, and the drive component 33 is fixedly connected to the reducer 36. The drive component 33 is a motor that drives the reducer 36. The drive shaft 34 passes through the reducer 36, and both ends of the drive shaft 34 extend out of the transmission box 32. The connection between the drive shaft 34 and the transmission box 32 is sealed by a seal 38, providing waterproof and dustproof protection for the transmission box 32. Couplings 37 are connected to both ends of the drive shaft 34 extending out of the transmission box 32, so that each end of the drive shaft 34 is connected to a transmission shaft 35 via the couplings 37. The second end of the transmission shaft 35 passes through the receiving groove 121 and is movably connected to the base 12, which facilitates the movable connection between the support rod assembly 13, which is set in the receiving groove 121, and the rotating shaft, so that the rotating rods 132 at both ends of the telescopic rod 131 are connected to the corresponding transmission shaft 35. A waterproof cable connector 39 is fixed to one end of the control box 31, which facilitates the connection of the controller in the control box 31 to other devices such as the detection device 5 via the waterproof cable connector 39 for receiving or transmitting data.

[0029] More specifically, the working principle of the control device 3 controlling the opening or closing of the waterproof cover body 1 is as follows: the drive component 33 of the control device 3 drives the reducer 36 to move. The reducer 36 can drive the drive shaft 34 to rotate at a reduced speed, thereby driving the transmission shaft 35 to rotate synchronously through the drive shaft 34. When the transmission shaft 35 rotates, it can drive the first set of support rod assemblies (i.e., the uppermost set of support rod assemblies 13 in the retracted state) movably connected to the transmission shaft 35 to rotate. The first set of support rod assemblies drives the cover body 11 to move, thereby pulling or pushing the other support rod assemblies 13 after the first set of support rod assemblies to rotate in sequence, thereby opening or closing the multiple sets of support rod assemblies 13, realizing the opening or closing of the cover body 11, and completing the state adjustment of the waterproof cover body 1. When there is water accumulation, the waterproof cover body 1 is adjusted to the open state, and after the water recedes, the waterproof cover body 1 is adjusted to the closed state.

[0030] As an optional implementation, the self-locking device 4 includes a plurality of locking components 41, each of which is fixedly connected to the base 12, and the first end of each locking component 41 passes through the corresponding through hole structure 125 on the base 12 and extends into the receiving groove 121. In each locking assembly 41, the locking assembly 41 includes a locking tongue 411, a latch 412, a sensor switch 413, an electromagnet 414, a locking tongue spring 415, a latch spring 416, and a fixed base 417. The locking tongue 411 and the latch 412 are both movably connected to the fixed base 417, and the locking tongue 411 abuts against the latch 412. One end of the locking tongue spring 415 is fixedly connected to the fixed base 417, and the other end of the locking tongue spring 415 is fixedly connected to the locking tongue 411. One end of the latch spring 416 is fixedly connected to the fixed base 417, and the other end of the latch spring 416 is fixedly connected to the latch 412. The sensor switch 413 and the electromagnet 414 are both fixedly connected to the fixed base 417. One end of the electromagnet 414 corresponds to the lower end of the latch 412. The sensor switch 413 and the electromagnet 414 are arranged adjacent to each other. The fixed base 417 is fixedly connected to the base 12. Specifically, the first end of each locking component 41 passes through the corresponding through-hole structure 125 on the base 12 and extends into the receiving groove 121. When the waterproof cover body 1 is opened to the correct position, the locking tongue 411 of the locking component 41 is triggered. The locking component 41 can automatically lock the support rod assembly 13 that has rotated into the receiving groove 121, ensuring the sealing of the waterproof cover body 1 after it is opened. This allows the waterproof cover body 1 to be fixedly connected to the base 12 after it is opened, improving the stability of the structure and the waterproof effect. In each locking component 41, the locking tongue 411 and the latch 412 are movably connected to the fixed base 417 via a connecting shaft. The locking tongue 411 has an opening and a locking position. The opening is set to correspond to the support rod assembly 13, and the locking position corresponds to and matches the upper end of the latch 412.

[0031] The working principle of the locking component 41 is as follows: when the locking component 41 is in the released state, the electromagnet 414 pushes the lower end of the latch 412, causing the latch 412 to rotate and release the locking tongue 411. The locking tongue 411 is pulled by the locking tongue 411 retaining spring, and the opening of the locking tongue 411 is rotated upward, so that the support rod component 13, which has been rotated into the receiving groove 121, can fall into the opening. When the inductive switch 413 senses that the support rod assembly 13, which has rotated into the receiving groove 121, has fallen into the opening, it transmits the detected information to the electromagnet. The electromagnet 414 cancels the push on the latch 412, and the latch 412 rotates back. The support rod assembly 13 is driven by the control device 3 to continue rotating, so that the support rod assembly 13 applies pressure to the locking tongue 411, pressing the opening of the locking tongue 411 downward and driving the locking tongue 411 to rotate. After the locking tongue 411 is rotated to the locking position, it engages with the latch 412, so that the locking component 41 is adjusted from the released state to the locked state, thus completing the locking of the support rod assembly 13.

[0032] As an optional implementation, the detection device 5 includes a water level sensor assembly 51, an ultrasonic sensor 52, a water pressure sensor 53, and a vehicle limit sensor assembly 54. The water level sensor assembly 51 is used to detect the water level height inside the waterproof cover body 1. The water level sensor assembly 51 includes a magnetostrictive sensor 511, a mounting base 512, a magnetic ring 513, and a floating block 514. The mounting base 512 is fixed on the base 12, the magnetostrictive sensor 511 is fixed on the mounting base 512, and the probe of the magnetostrictive sensor 511 passes through the mounting base 512. The magnetic ring 513 is sleeved on the probe and is movably connected to the probe. The floating block 514 is sleeved and fixed on the magnetic ring 513. The ultrasonic sensor 52 is used to detect the vehicle chassis height inside the waterproof cover body 1, and the water pressure sensor 53 is used to detect the water pressure inside the waterproof cover body 1. Both the ultrasonic sensor 52 and the water pressure sensor 53 are fixed on the base 12. The vehicle limit sensor assembly 54 is used to detect the parking status of the vehicle inside the waterproof cover body 1. The vehicle limit sensor assembly 54 includes multiple photoelectric sensors that are opposite each other and are respectively disposed at the four corners of the wall of the limit groove 122. Specifically, the water level sensor assembly 51 is fixed on one corner above the base 12 and is located within the area enclosed by the receiving groove 121, so that when the waterproof cover body 1 is opened, the water level sensor assembly 51 can be covered, allowing the water level sensor assembly 51 to detect the water level height inside the waterproof cover body 1. When water seeps into the waterproof cover body 1, it can enter the mounting base 512 of the water level sensor assembly 51. The floating block 514 floats on the surface of the water. When the water level changes, the floating block 514 floats synchronously with the height of the water surface, thereby driving the magnetic ring 513 to move up and down synchronously on the measuring rod of the magnetostrictive displacement sensor 511. The measuring rod of the magnetostrictive displacement sensor 511 and the magnetic ring 513 cooperate to detect the height position of the magnetic ring 513, thereby determining the water level height inside the waterproof cover body 1, and transmitting the detected water level height information to the control device 3. The ultrasonic sensor 52 can detect the height of the vehicle chassis inside the waterproof cover body 1. More specifically, when there is an angle between the surface of the base 12 of the waterproof cover body 1 and the ground, and the vehicle is parked on the tilted base 12, there is an angle between the vehicle chassis and the ground. At this time, the height of the vehicle chassis detected by the ultrasonic sensor 52 is the height of the lowest point of the chassis. This ensures that when the automatic air replenishment device 2 replenishes air, the water level is always lower than the lowest point of the chassis, preventing the tilted vehicle from being submerged in water. The water pressure sensor 53 transmits the detected water pressure inside the waterproof cover body 1 to the control device 3, so that the control device 3 can control the amount of air replenishment by the automatic air replenishment device 2 based on the detected information.There are four photoelectric sensors, which are respectively set at the four corners of the wall of the limiting groove 122. Two adjacent photoelectric sensors emit lasers towards each other to form a rectangular laser frame that encircles the limiting groove 122. When the vehicle drives into the base 12, if the vehicle is tilted, the laser emitted by the photoelectric sensor will shine on the vehicle, preventing the corresponding photoelectric sensor from receiving photoelectric information. The vehicle limiting sensor assembly 54 will detect the vehicle's tilt and prompt the driver to adjust it so that the vehicle is parked upright. This ensures that when the waterproof cover body 1 is opened, it will not interfere with the vehicle and can completely cover the vehicle.

[0033] As an optional implementation, an optical axis 6 is also included. The optical axis 6 is fixed to the top of the garage and is correspondingly arranged with the waterproof cover body 1. The optical axis 6 is used to limit the length of the telescopic rod 131. Specifically, the optical axis 6 is set on the top of the garage and is correspondingly arranged with the waterproof cover body 1. When the control device 3 drives the support rod assembly 13 to rotate, the telescopic rod 131 of the support rod assembly 13 contacts the optical axis 6, and the telescopic rod 131 can retract into the rotating rod 132. When the support rod assembly 13 rotates away from the optical axis 6, the compression spring 133 in the rotating rod 132 ejects the telescopic rod 131 back to its original position through elastic force. By setting the optical axis 6 and the telescopic support rod assembly 13, the waterproof cover body 1 can adapt to garages of different heights, improving the application scenarios of the waterproof cover. At the same time, reducing the height of the waterproof cover body 1 can reduce the air replenishment pressure of the automatic air replenishment device 2.

[0034] Example 2: like Figures 10 to 14 As shown, a waterproofing method for cars in an underground garage is applied to a waterproof cover for cars in an underground garage as described in Embodiment 1 above. The method includes steps S10 to S40. The default state of the waterproof cover is that the waterproof cover body 1 is folded up and contained in the receiving groove 121 of the base 12.

[0035] S10. The vehicle is parked on the waterproof cover body. The detection device detects the parking status of the vehicle inside the waterproof cover body and adjusts the vehicle according to the detected parking status so that the vehicle is parked in the correct position.

[0036] In some embodiments, step S10 may include: The default state of the waterproof cover is that the waterproof cover body 1 is folded up and placed in the receiving groove 121 of the base 12. When the vehicle is parked on the base 12, the vehicle limit sensor component 54 of the detection device 5 detects whether the vehicle is parked crookedly. If the measured parking state is crooked, the owner is prompted to adjust the vehicle to the correct position (i.e., the position where the vehicle is parked upright). If the measured parking state is not crooked, the next step S20 is executed.

[0037] S20. After the vehicle is parked in the correct position, the detection device detects and records the height of the vehicle chassis inside the waterproof cover body, and the detection device also detects the water level inside the waterproof cover body in real time.

[0038] In some embodiments, step S20 may include: Once the vehicle is parked in the correct position, the ultrasonic sensor 52 of the detection device 5 continuously monitors the chassis height of the vehicle on the base 12 and records the lowest point of the vehicle chassis as the chassis height. Simultaneously, the water level sensor assembly 51 continuously monitors for water accumulation around the waterproof cover. If water accumulation is detected, step S30 is executed. If the water level sensor assembly 51 detects no water accumulation around the waterproof cover, it continues monitoring.

[0039] S30. When the detection device detects the presence of accumulated water, the control device controls the waterproof cover to open and cover the vehicle.

[0040] In some embodiments, step S30 may include: When the water level sensor assembly 51 detects water accumulation around the waterproof cover, it transmits the detected information to the control device 3. The controller box 31 and the drive unit 33 in the transmission box 32 transmit control signals. The drive unit 33 starts and drives the reducer 36 to move, thereby driving the drive shaft 34 and the transmission shaft 35 to rotate. The transmission shaft 35 drives the support rod assembly 13 to rotate, opening the cover 11 and covering the vehicle.

[0041] S40. After the waterproof cover body is opened to the correct position, the self-locking device locks and fixes the waterproof cover body. At the same time, the control device controls the automatic air replenishment device to replenish air into the waterproof cover body according to the vehicle chassis height and the water level, so as to keep the air inside the waterproof cover body within a safe volume, thus completing the waterproof protection of the vehicle parked inside the waterproof cover body.

[0042] In some embodiments, step S40 may include: After the waterproof cover body 1 is fully opened, the support rod assembly 13 contacts the self-locking device 4, thereby triggering the locking tongue 411 of the self-locking device 4 to lock and fix the waterproof cover body 1. The control device 3, based on the vehicle chassis height and water level obtained in the previous steps, controls the automatic air replenishment device 2 to replenish air into the waterproof cover body 1, ensuring that the water level inside the waterproof cover body 1 is lower than the lowest point of the vehicle chassis. The air replenishment amount of the automatic air replenishment device 2 is calculated based on the vehicle chassis height, water level, and the dimensions of the waterproof cover body 1.

[0043] In some embodiments, step S40 may further include: Determine the constant water level h inside the waterproof cover body 1 based on the vehicle chassis height; Based on the constant water level h inside the waterproof cover body 1 and the size parameters of the waterproof cover body 1, determine the volume inside the waterproof cover body 1 that is not infiltrated. When the water level exceeds the constant water level h, the amount of air replenishment for the automatic air replenishment device 2 is determined based on the increase in the water level. The automatic air replenishment device 2 is then controlled to replenish air into the waterproof cover body 1 according to the amount of air replenishment, so that the air inside the waterproof cover body 1 is kept within a safe volume.

[0044] By default, the garage floor has no compression deformation, such as Figure 11 and Figure 12 As shown, after the waterproof cover body 1 is opened to the correct position, the radius R of the arc-shaped support rod assembly 13, the width B of the waterproof cover body 1, and the inherent tilt angle of the base 12 are all considered. The height H of the waterproof cover body 1 after opening is obtained by calculating the volume V of the undeformed vehicle cover body 11. More specifically, if the radius R of the support rod assembly 13 is conventionally set to 2.5m, and the width B of the waterproof cover body 1 is set to 2.5m, then the volume V of the non-deformable vehicle cover body 11 is approximately 24.544m³. 3 .

[0045] Since the garage height H1 is generally 2.1m, when the waterproof cover body 1 is opened, the top of the waterproof cover body 1 will be compressed and deformed. The height H of the waterproof cover body 1 after compression and deformation is 2m. Obtain the volume V1 of the compressed arc top of the waterproof cover body 1, and thus obtain the volume V2 of the deformed car cover body 11, V2=V-V1.

[0046] The formula for calculating the compressed arc-shaped volume V1 above the waterproof cover body 1 is as follows: As shown in the figure, The angle between the line connecting the top point of the compressed arc above the waterproof cover body 1 and point O and the vertical line (point O is the midpoint of the bottom of the cross-section of the waterproof cover body 1). When the height H of the waterproof cover body 1 after compression deformation is 2m, and the radius R of the support rod assembly 13 is 2.5m, The height of the compressed apex above the waterproof cover body 1 is approximately RH, approximately 0.5m. The chord length of the compressed apex above the waterproof cover body 1 is approximately 0.9316. Approximately 3m, therefore, the compressed arc apex volume V1 above the waterproof cover body 1 is calculated according to the following formula. Thus, V1 is approximately 7.05625m. 3 Therefore, the volume V2 of the deformable vehicle body 11 is 17.5m. 3 .

[0047] inclination Located diagonally across the chassis, it rises when wading. , The volume inside the car cover is reduced. If the volume inside the vehicle cover is V3 when wading through water, then... At this time, the atmospheric pressure inside the cover is Po (i.e., one atmosphere). When the waterproof cover is in a wading environment, there is a water level difference CH inside.

[0048] When the waterproof cover body 1 is compressed and deformed (e.g. Figure 13 As shown), when the water level inside the waterproof cover body 1 reaches h=15cm, it can maintain a constant water level. When the accumulated water level does not exceed the constant water level, air replenishment is not required. At this time, the volume inside the waterproof cover body 1 decreases by V4. The formula for calculating V4 is: , in, The angle between the water level inside the waterproof cover body 1 (reaching a height of h = 15 cm) and the horizontal plane corresponding to the line connecting the intersection of the waterproof cover and point O, is given when h = 15 cm and R = 2.5 m. Approximately 0.06. At a constant water level, the volume V5 within the waterproof cover body 1 that is not leaked is determined by the decrease in volume V4 within the waterproof cover body 1. V5 is approximately 15.625m 3 At this time, the formula for calculating the internal pressure P5 when the water level inside the waterproof cover body 1 is at a constant water level is: Furthermore, given a 10m water level difference at one atmosphere of pressure, when the waterproof cover undergoes compression deformation, the water level difference at a constant level is... The water level is the depth of the water accumulation relative to the vehicle chassis. Based on this, when the water level increases When needed, the automatic air replenishment device 2 requires air replenishment. The amount of air replenished by the automatic air replenishment device 2 is... The calculation formula is: .

[0049] When the waterproof cover body 1 is not under compression deformation (e.g.) Figure 14 As shown), by raising the base h1 = 20cm, when the water level inside the waterproof cover body 1 is constant h, the volume inside the waterproof cover body 1 decreases by V6. The formula for calculating V6 is: , in, Let O1 be the angle between the water level (h=15cm) inside the waterproof cover body 1 and the line connecting the intersection of the waterproof cover and point O1, and the horizontal plane corresponding to O1. Point O1 is the midpoint of the bottom of the cross-section of the raised waterproof cover body 1. At a constant water level, the volume V7 inside the waterproof cover body 1 that is not leaked is determined by the decrease in volume V6. At this point, the formula for calculating the internal pressure P7 of the waterproof cover body 1 when the water level is constant is: Furthermore, given a 10m water level difference at one atmosphere of pressure, the water level difference at a constant water level is... The water level is the depth of the water accumulation relative to the vehicle chassis. Based on this, when the water level increases When needed, the automatic air replenishment device 2 requires air replenishment. The amount of air replenished by the automatic air replenishment device 2 is... The calculation formula is: .

[0050] This invention involves correctly parking the vehicle on the base 12 of the waterproof cover body 1. When the detection device 5 detects water accumulation in the surrounding environment of the waterproof cover, the control device 3 automatically controls the waterproof cover body 1 to open, covering the vehicle on the base 12. After the waterproof cover body 1 is opened to the correct position, the self-locking device 4 automatically locks the waterproof cover body 1. The automatic air replenishment device 2 automatically replenishes air into the waterproof cover body 1 based on the water level height and vehicle chassis height detected in real time by the detection device 5, so that the internal liquid level is lower than the vehicle chassis, thus completing the waterproof protection of the vehicle.

[0051] After the detection device 5 detects that there is no water accumulation in the surrounding environment of the waterproof cover, the self-locking device 4 automatically unlocks the waterproof cover body 1, and the control device 3 controls the waterproof cover body 1 to close, so that the cover body 11 and the support rod assembly 13 are gathered in the receiving groove 121.

[0052] The above description is merely a preferred embodiment of the present invention. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A waterproof cover for cars in an underground parking garage, characterized in that, It includes a waterproof cover body (1), an automatic air replenishment device (2), a control device (3), a self-locking device (4), and a detection device (5). The automatic air replenishment device (2), the control device (3), the self-locking device (4), and the detection device (5) are all fixed to the bottom of the waterproof cover body (1). The waterproof cover body (1) is used to provide waterproof protection for vehicles parked inside; The control device (3) is used to drive the waterproof cover body (1) to open or close; When the waterproof cover body (1) is opened to the position, the self-locking device (4) is used to lock the waterproof cover body (1). When the waterproof cover body (1) is locked by the self-locking device (4), the automatic air replenishment device (2) is used to replenish air into the waterproof cover body (1) and keep the air inside the waterproof cover body (1) within a safe volume. The detection device (5) is used to detect the water level inside the waterproof cover body (1), the vehicle chassis height, the water pressure, and the vehicle parking status.

2. The waterproof cover for cars in an underground garage according to claim 1, characterized in that, The waterproof cover body (1) includes a cover (11), a base (12) and multiple sets of support rod assemblies (13). Each set of support rod assemblies (13) is fixedly connected to the cover (11) and each set of support rod assemblies (13) is movably connected to the control device (3). When the cover (11) is opened to the position by the support rod assembly (13), the cover (11) and the base (12) cooperate with each other to form a waterproof space to accommodate the vehicle. The base (12) includes a receiving groove (121), a limiting groove (122), a limiting block (123), and an inclined plate (124). The receiving groove (121) is disposed on the periphery of the base (12) and is used to place the support rod assembly (13) and the cover (11). The limiting block (123) is fixed in the limiting groove (122). The limiting groove (122) is disposed corresponding to the wheel of the vehicle. The inclined plate (124) is disposed on the first end of the base (12).

3. The waterproof cover for cars in an underground garage according to claim 2, characterized in that, In each of the support rod assemblies (13), the support rod assembly (13) includes a telescopic rod (131), two rotating rods (132), two compression springs (133) and two limiting sleeves (134). The two rotating rods (132) are respectively provided with a compression spring (133). The two ends of the telescopic rod (131) are inserted into the corresponding rotating rod (132), and the two compression springs (133) are respectively sleeved on the two ends of the corresponding telescopic rod (131). The first end of the two rotating rods (132) is respectively fixedly connected to a limiting sleeve (134), and the second end of the two rotating rods (132) is movably connected to the control device (3).

4. The waterproof cover for cars in an underground garage according to claim 2, characterized in that, The automatic gas replenishment device (2) includes a gas tank (21), a pressure gauge (22), a safety valve (23), a filling valve (24), a pressure reducing valve (25), a pressure reducing valve gauge (26), a solenoid valve (27), and an outlet pipe (28). The gas tank (21) is fixedly connected to the base (12). The pressure gauge (22), the pressure reducing valve (25), and the solenoid valve (27) are fixedly connected in series on the gas tank (21) through the outlet pipe (28). The pressure reducing valve gauge (26) is fixedly connected to the pressure reducing valve (25). The filling valve (24) and the safety valve (23) are both connected to the pressure gauge (22).

5. The waterproof cover for cars in an underground garage according to claim 2, characterized in that, The control device (3) includes a control box (31), a transmission box (32), a drive component (33), a drive shaft (34), a transmission shaft (35), a reducer (36), a coupling (37), a seal (38), and a waterproof cable connector (39). The transmission box (32) and the control box (31) are an integral structure or a fixed connection structure, and both the transmission box (32) and the control box (31) are fixed to the bottom of the base (12). The reducer (36) is fixed inside the transmission box (32), and the drive component (33) is fixedly connected to the reducer (36). The drive component penetrates the reducer (36). The drive shaft (34) is fixedly connected to the gearbox (36), and the seal (38) is fixedly connected to the connection between the drive shaft (34) and the drive box (32). Both ends of the drive shaft (34) are fixedly connected to the first end of the corresponding drive shaft (35) through the coupling (37). The second end of the drive shaft (35) passes through the receiving groove (121) and is movably connected to the base (12). The second end of the drive shaft (35) is movably connected to each set of support rod assemblies (13). The waterproof cable connector (39) is fixed to one end of the control box (31).

6. The waterproof cover for cars in an underground garage according to claim 2, characterized in that, The self-locking device (4) includes a plurality of locking components (41), each of the locking components (41) being fixedly connected to the base (12), and the first end of each of the locking components (41) passing through the corresponding through hole structure (125) on the base (12) and extending into the receiving groove (121); In each of the locking components (41), the locking component (41) includes a latch (411), a latch (412), a sensor switch (413), an electromagnet (414), a latch spring (415), a latch spring (416), and a fixing base (417). The latch (411) and the latch (412) are both movably connected to the fixing base (417), and the latch (411) abuts against the latch (412). One end of the latch spring (415) is fixedly connected to the fixing base (417), and the other end of the latch spring (415) is fixedly connected to the fixing base (417). The end is fixedly connected to the latch (411); one end of the snap spring (416) is fixedly connected to the fixed base (417), and the other end of the snap spring (416) is fixedly connected to the snap (412); the induction switch (413) and the electromagnet (414) are both fixedly connected to the fixed base (417), one end of the electromagnet (414) corresponds to the lower end of the snap (412), the induction switch (413) and the electromagnet (414) are arranged adjacent to each other, and the fixed base (417) is fixedly connected to the base (12).

7. The waterproof cover for cars in an underground garage according to claim 2, characterized in that, The detection device (5) includes a water level sensor assembly (51), an ultrasonic sensor (52), a water pressure sensor (53), and a vehicle limit sensor assembly (54). The water level sensor assembly (51) is used to detect the water level height inside the waterproof cover body (1). The water level sensor assembly (51) includes a magnetostrictive sensor (511), a mounting base (512), a magnetic ring (513), and a floating block (514). The mounting base (512) is fixed on the base (12). The magnetostrictive sensor (511) is fixed on the mounting base (512), and the probe of the magnetostrictive sensor (511) passes through the mounting base (512). The magnetic ring (513) is sleeved on the probe and is movably connected to the probe. The floating block (514) is sleeved and fixed on the magnetic ring (513). The ultrasonic sensor (52) is used to detect the height of the vehicle chassis inside the waterproof cover body (1), and the water pressure sensor (53) is used to detect the water pressure of the accumulated water inside the waterproof cover body (1). Both the ultrasonic sensor (52) and the water pressure sensor (53) are fixed on the base (12). The vehicle limit sensor assembly (54) is used to detect the parking status of the vehicle inside the waterproof cover body (1). The vehicle limit sensor assembly (54) includes multiple photoelectric sensors that are directed to each other. The multiple photoelectric sensors are respectively arranged at the four corners of the wall of the limit groove (122).

8. The waterproof cover for cars in an underground garage according to claim 3, characterized in that, It also includes an optical axis (6), which is fixed to the top of the garage and is correspondingly arranged with the waterproof cover body (1). The optical axis (6) is used to limit the length of the telescopic rod (131).

9. A method for waterproofing cars in an underground garage, characterized in that, The method, applied to a waterproof cover for a car in an underground garage as described in any one of claims 1-8, comprises: The vehicle is parked on the waterproof cover body (1), and the detection device (5) detects the parking status of the vehicle inside the waterproof cover body (1) and adjusts the vehicle according to the detected parking status so that the vehicle is parked in the correct position. When the vehicle is parked in the correct position, the detection device (5) detects and records the vehicle chassis height inside the waterproof cover body (1), and the detection device (5) detects the water level height inside the waterproof cover body (1) in real time. When the detection device (5) detects the presence of the accumulated water level, the control device (3) controls the waterproof cover body (1) to open and cover the vehicle; When the waterproof cover body (1) is opened to the position, the self-locking device (4) locks and fixes the waterproof cover body (1). At the same time, the control device (3) controls the automatic air replenishment device (2) to replenish air into the waterproof cover body (1) according to the vehicle chassis height and the water level, so that the air inside the waterproof cover body (1) is kept within a safe volume, thus completing the waterproof protection of the vehicle parked inside the waterproof cover body (1).

10. The method for waterproofing cars in an underground garage according to claim 9, characterized in that, The control device (3) controls the automatic air replenishment device (2) to replenish air into the waterproof cover body (1) according to the vehicle chassis height and the water level, so as to keep the air inside the waterproof cover body (1) within a safe volume, including: The constant water level h inside the waterproof cover body (1) is determined according to the height of the vehicle chassis; Based on the constant water level h inside the waterproof cover body (1) and the size parameters of the waterproof cover body (1), determine the volume inside the waterproof cover body (1) that is not infiltrated; When the water level is detected to exceed the constant water level h, the amount of air replenishment of the automatic air replenishment device (2) is determined according to the increase in the water level, and the automatic air replenishment device (2) is controlled to replenish air into the waterproof cover body (1) according to the amount of air replenishment, so that the air inside the waterproof cover body (1) is kept within a safe volume.

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