Intelligent parking space ground lock

Abstract

The present invention innovatively provides an intelligent parking ground lock. Several parking spaces are provided with ground lock structures, the ground lock structure includes a parking lock and a mobile structure, the parking lock is slidably arranged in the mobile structure so that the parking lock is close to or away from the vehicle, a first sensor for detecting the length of the vehicle is arranged outside the parking space, and a second sensor is arranged on the side of the parking lock close to the parking space; a detection module is arranged on the parking space, the detection module includes a visual detection unit and a parking detection unit, the visual detection unit is used to obtain data in the first sensor and give vehicle information, and the parking detection unit is used to obtain data in the second sensor and detect the parking position; the parking lock also includes a vehicle comparison module, a parking processing module, a parking lock control module and a parking database, etc., to ensure that the vehicle matches the parking lock without affecting the normal use of the parking lock.

Description

Technical Field

[0001] The present invention relates to the technical field of parking systems, and more particularly to an intelligent parking space ground lock. Background Art

[0002] With the improvement of people's living standards, more and more families own private cars. In order to facilitate the parking of private cars during travel, parking lots need to be managed. During use, since the parking spaces in the parking lot are dynamic and fixed, but vehicles cannot accurately obtain parking space status information, vehicles are prone to drive into parking spaces that cannot be parked, affecting the normal use of parking spaces. Summary of the invention

[0003] In view of the shortcomings of the prior art, an object of the present invention is to provide a smart parking ground lock to overcome the above-mentioned defects in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A smart parking ground lock, comprising a parking lot with a plurality of parking spaces, wherein a ground lock structure is provided on each of the plurality of parking spaces, wherein the ground lock structure comprises a parking lock and a moving structure, wherein the parking lock is slidably provided in the moving structure so that the parking lock approaches or moves away from a vehicle, wherein a first sensor for detecting a length of a vehicle is provided outside the parking space, and a second sensor is provided on a side of the parking lock close to the parking space; wherein a detection module is provided on the parking space, wherein the detection module comprises a visual detection unit and a parking detection unit, wherein the visual detection unit is used to obtain data in the first sensor and provide vehicle information, and wherein the parking detection unit is used to obtain data in the second sensor and provide a distance B1 from the vehicle to the parking lock to detect a parking position;

[0006] The parking lock also includes a vehicle comparison module, a parking processing module, a parking lock control module and a parking database;

[0007] The vehicle comparison module and the parking processing module are both connected to a parking space database, which stores b1, b2 and parameters of various brands of vehicles, wherein b1 is the minimum safe distance from the parking space lock to the vehicle, and b2 is the maximum safe distance from the parking space lock to the vehicle;

[0008] The vehicle comparison module is used to obtain the vehicle information in the visual detection unit, as well as the a1 and vehicle parameters of each brand in the parking space database, and compare the measured information with the qualified vehicle parameters. When the vehicle is an authorized parking vehicle, the vehicle can enter the parking space. When the vehicle is an unauthorized parking vehicle, the parking space lock is activated and the vehicle cannot enter the parking space.

[0009] The parking processing module is used to obtain the data B1 in the parking detection unit and b1 and b2 in the parking space database. The parking processing module issues a start command when B1 is greater than b1 and less than b2 according to the comparison result of B1, b1 and b2, and issues a correction command when B1 is less than b1 or B1 is greater than b2;

[0010] The parking lock control module starts the parking lock when the parking processing module issues a start command, and controls the parking lock to move so that B1 is between b1-b2 when the parking processing module issues a correction command.

[0011] Preferably, when B1 is less than b1, the parking processing module issues a first correction command, and the parking lock control module controls the parking lock to move toward the side away from the vehicle so that the parking lock is away from the vehicle; when B1 is greater than b2, the parking processing module issues a second correction command, and the parking lock control module controls the parking lock to move toward the vehicle so that the parking lock is close to the vehicle.

[0012] Preferably, a real-time detection unit is further provided in the parking processing module. When the distance from the parking lock to the front of the vehicle reaches a safe distance, and B1 is greater than b1 and less than b2, the correction signal is stopped and a start command is issued. If B1 is still between b1-b2, the correction command continues to be issued.

[0013] Preferably, the parking lock also includes a charging module, which includes a timing unit, a billing unit, a vehicle identification unit, and an electronic payment unit. The vehicle identification unit is used to obtain information in the second sensor and obtain license plate information. The timing unit is used to obtain the parking time T3 after the vehicle enters the parking space. The billing unit is used to obtain T3 and calculate the parking fee. The electronic payment module is used to connect to a third-party payment platform and generate a corresponding order for paying the parking fee. After the payment is completed, the charging module issues a closing command, and the parking lock control module drives the parking lock to reset.

[0014] Preferably, a QR code is provided on the parking space lock structure, and the QR code is scanned to connect to the electronic payment module corresponding to the parking space, query the corresponding order information and make payment.

[0015] Preferably, the third-party payment platform is a mobile phone APP. Users register and bind their license plate information. According to the license plate information, they can obtain the corresponding order information in the APP and complete the payment.

[0016] Preferably, the parking lock comprises a baffle, a slider and a support rod, one end of the slider and the support rod are both slidably arranged on the mobile structure, one end of the baffle is hinged on the slider, and the other end of the support rod is hinged on the bottom of the baffle, and the slider and the support rod are both provided with driving members, and the two groups of the driving members respectively drive the slider and the support rod to slide along the direction of the mobile structure

[0017] The beneficial effects of the present invention are as follows: 1. The vehicle comparison module, parking comparison module, parking lock control module, parking database and detection module on the parking lock are used to compare and obtain vehicle information and the distance from the parking lock to the vehicle. Before the vehicle enters the parking space, the vehicle is detected to determine whether the vehicle is an authorized parking vehicle, thereby ensuring that the vehicle entering the parking space is an authorized parking vehicle. At the same time, after the vehicle enters the parking space, the parking comparison module is used to compare the distance from the parking lock to the vehicle, thereby realizing the control of the parking lock;

[0018] 2. A charging module is set in the parking lock. The parking time and parking fee are calculated by the charging module. The parking fee is paid by scanning the QR code on the parking lock or on the mobile phone APP. After the parking lock is closed, the vehicle drives out;

[0019] 3. Visual sensors are installed at the entrances and exits of the parking lot. The visual sensors, data acquisition modules, parking comparison modules, and statistical modules are used to monitor the status of vehicles entering and exiting the parking lot, and obtain the number of remaining parking spaces in the parking lot, so that drivers can judge whether to enter the parking lot. At the same time, the alarm module is used to monitor the time from the vehicle entering the parking lot to the time it enters the parking space, and the time from the vehicle leaving the parking lot, so as to avoid vehicles staying in the parking lot aisles for too long, affecting the passage of vehicles in the parking lot;

[0020] 4. An information transmission module is provided on the parking lot barrier. The data detected by the barrier is transmitted to the background terminal by means of the information transmission module. The background terminal receives data from barriers of different brands in the city's parking lots and realizes data interaction of barriers of different brands. After data interconnection between barriers of different brands and locations is realized, it is convenient to realize centralized management of the city's parking lots. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a control relationship diagram of the present invention;

[0022] Figure 2 It is a structural diagram of a parking lock according to the present invention.

[0023] Figure numerals: 1. parking lot; 101. detection module; 2. ground lock structure; 21. parking lock; 211. baffle; 212. slider; 213. support rod; 201. vehicle comparison module; 202. parking processing module; 203. parking lock control module; 22. mobile structure; 3. gate; 301. data acquisition module; 302. parking comparison module; 303. statistics module; 304. alarm module; 305. information transmission module; 401. charging module. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0028] A smart parking ground lock comprises a parking lot 1 provided with a plurality of parking spaces, wherein the plurality of parking spaces are provided with ground lock structures 2, wherein after a vehicle enters, the ground lock structure 2 is used to lock the vehicle to prevent the vehicle from driving out; the ground lock structure 2 comprises a parking lock 21 and a moving structure 22, wherein the parking lock 21 is slidably arranged in the moving structure 22, wherein the moving structure 22 is used to make the parking lock 21 approach or move away from the vehicle, and wherein the parking lock 21 is used to prevent the vehicle from moving in the parking space; a first sensor for detecting the length of the vehicle is arranged outside the parking space, and a second sensor is arranged on a side of the parking lock 21 close to the parking space; a detection module 101 is arranged on the parking space, wherein the detection module 101 comprises a visual detection unit and a parking detection unit, wherein the visual detection unit is used to obtain data in the first sensor and provide vehicle information, and the parking detection unit is used to obtain data in the second sensor and provide a distance B1 from the vehicle to the parking lock 21 to detect the parking position;

[0029] The parking lock 21 also includes a vehicle comparison module 201, a parking processing module 202, a parking lock control module 203 and a parking database;

[0030] The vehicle comparison module 201 and the parking processing module 202 are both connected to the parking space database, which stores a1, b1, b2 and vehicle parameters of various brands, such as vehicle model, vehicle size and other data. a1 is the maximum length of the parking space, b1 is the minimum safety distance from the parking lock 21 to the vehicle, and b2 is the maximum safety distance from the parking lock 21 to the vehicle;

[0031] The vehicle comparison module 201 is used to obtain the vehicle information in the visual detection unit, and the vehicle parameters of each brand and a1 in the parking space database, compare the vehicle information and each vehicle parameter, obtain and measure the length A1 and the vehicle model and other information, compare A1 with a1, and according to the comparison result, when A1 is less than a1, the vehicle is an authorized parking vehicle and the vehicle can enter the parking space; when A1 is greater than a1, the vehicle is an unauthorized vehicle, the parking space lock 21 is activated, and the vehicle cannot enter the parking space;

[0032] The parking processing module 202 is used to obtain the data B1 in the parking detection unit and b1 and b2 in the parking space database. The parking processing module 202 issues a start command when B1 is greater than b1 and less than b2 according to the comparison result of B1 with b1 and b2, and issues a correction command when B1 is less than b1 or B1 is greater than b2;

[0033] The parking lock control module 203 starts the parking lock 21 when the parking processing module 202 issues a start command, and controls the parking lock 21 to move so that B1 is between b1-b2 when the parking processing module 202 issues a correction command.

[0034] When B1 is less than b1, the parking processing module 202 issues a first correction command, and the parking lock control module 203 controls the parking lock 21 to move to the side away from the vehicle so that the parking lock 21 is away from the vehicle. When B1 is greater than b2, the parking processing module 202 issues a second correction command, and the parking lock control module 203 controls the parking lock 21 to move toward the vehicle so that the parking lock 21 is close to the vehicle.

[0035] The parking processing module 202 is also provided with a real-time detection unit. When the distance from the parking lock 21 to the front of the vehicle reaches a safe distance, B1 is greater than b1 and less than b2, the correction signal is stopped and a start command is issued. If B1 is still between b1-b2, the correction command continues to be issued.

[0036] When the vehicle does not enter the parking space, the first sensor is used to detect the vehicle information and match it with the target parking space. When the vehicle is an authorized parkable vehicle, the vehicle can enter the parking space; when the vehicle is not authorized and does not meet the requirements of a parkable vehicle, a warning light is set on the parking space, and the warning light is used to remind the driver to change to a suitable parking space; after the vehicle enters the parking space, the second sensor is used to detect the distance between the vehicle and the parking lock 21. When the vehicle and the parking lock 21 are within a safe distance, the parking lock 21 is started to lock the vehicle; when the distance between the vehicle and the parking lock 21 is outside the safe distance, the first correction command and the second correction command are implemented accordingly to achieve directional movement of the parking lock 21, while locking the vehicle in the parking space; after the parking lock 21 moves to the specified position, the parking lock 21 is started to lock the vehicle, so as to avoid the parking lock 21 being too close to the vehicle and affecting the normal start-up of the parking lock 21, and at the same time, to avoid the parking lock 21 being too far away from the vehicle and failing to achieve the vehicle locking effect.

[0037] The parking lock 21 also includes a charging module 401, which includes a timing unit, a billing unit, a vehicle identification unit, and an electronic payment unit. The vehicle identification unit is used to obtain information in the second sensor and obtain license plate information. The timing unit is used to obtain the parking time T3 after the vehicle enters the parking space. The billing unit is used to obtain T3 and calculate the parking fee. The electronic payment module is used to connect to a third-party payment platform and generate a corresponding order for paying the parking fee. After the payment is completed, the charging module 401 issues a closing command, and the parking lock control module 203 drives the parking lock 21 to reset.

[0038] The parking lock 21 is provided with a QR code. The QR code is scanned to connect to the electronic payment module corresponding to the parking space, query the corresponding order information and make payment.

[0039] The third-party payment platform is a mobile APP. Users register and bind their license plate information. Based on the license plate information, they can get the corresponding order information in the APP and complete the payment.

[0040] When the parking lock 21 is started, the timing unit in the charging module 401 is started and starts to calculate the vehicle stop time, and uses the charging unit to calculate the parking fee; before leaving, you can scan the QR code on the parking lock 21 to obtain the order information, and after completing the parking fee payment, the parking lock 21 is closed and the vehicle leaves the parking lot 1; you can also use the mobile phone APP to directly obtain the parking fee information and complete the parking fee payment after entering the license plate information.

[0041] A first visual sensor is provided at the entrance and exit of parking lot 1. A data acquisition module 301, a parking comparison module 302 and a statistical module 303 are also provided at the entrance and exit of parking lot 1. The data acquisition module 301 is used to obtain image information in the first visual sensor, identify license plate information and distinguish information of vehicles entering and exiting parking lot 1. The parking comparison module 302 is used to obtain information on the parking lock control module 203 on each parking space and provide parking space usage data C1. The statistical module 303 is used to obtain information on the data acquisition module 301 and the parking comparison module 302, and calculate the time T1 when a vehicle enters a parking space from parking lot 1 or the time T2 when a vehicle leaves parking lot 1 from a parking space.

[0042] An alarm module 304 is provided in the parking lot 1. The alarm module 304 includes an alarm unit and a feedback unit. The feedback unit is used to obtain the data T1 and T2 in the statistical module 303. When T1 is greater than t1, or T2 is greater than t2, the feedback unit sends a feedback signal to the alarm unit. The alarm unit is used to warn the car owner to leave the parking lot 1 as soon as possible or enter the parking space as soon as possible.

[0043] An electronic screen is also provided at the entrance and exit of parking lot 1. A database is provided in the electronic screen. The database contains c1, which is the data of all parking spaces in parking lot 1. A data processing unit is provided in the electronic screen. The data processing unit is used to obtain C1 in the parking comparison module 302 and c1 in the database. The electronic screen is used to reflect the real-time usage status of parking lot 1.

[0044] A gate 3 is provided at the entrance and exit of the parking lot 1, and a first visual sensor is provided on the gate 3. The first visual sensor is used to identify vehicles entering and exiting the parking lot 1, and a data acquisition module 301 is used to analyze vehicle information and conditions of vehicles entering and exiting the parking lot 1, and a parking comparison module 302 is used to obtain the use of vehicles in the parking lot 1, and calculate the time required for the vehicle to go from the entrance and exit of the parking lot 1 to the parking space and from the parking space to leave the parking lot 1; an alarm module 304 is provided in the parking lot 1, and the alarm module 304 is used to warn vehicles in the parking lot 1 that have not entered the parking space for a long time or have not left the parking lot 1 in time, so as to prevent drivers from parking randomly and affecting the normal use of the parking lot 1; at the same time, an electronic screen is provided at the entrance and exit of the parking lot 1, and the electronic screen is used to display the use of the parking lot 1 and the number of remaining parking spaces in real time, so as to facilitate the driver to judge whether to enter the parking lot 1 to park.

[0045] An information transmission module 305 is also provided in the barrier 3, and the system includes a background terminal. The background terminal can be connected to the information transmission module 305 in all the barrier 3 of different brands in the city, and the information transmission module 305 is used to connect to the background terminal to realize data intercommunication and interconnection between all the barrier 3 in the city; a barrier database is provided in the background terminal, and the barrier database includes basic data of each barrier 3, including the brand of the barrier 3, the parking lot location corresponding to the barrier 3, the number of parking spaces in the corresponding parking lot and other parameters; during use, the barriers 3 of different brands and different locations can realize data interaction. During use, the parameters of each barrier 3, as well as the data obtained by the barrier 3, such as vehicle information in the parking lot, the number of vehicles, etc., can be gathered in the background terminal, so as to realize the parking management process in the city; during use, the data of the barrier 3 of each parking lot can be quickly obtained, and the barrier 3 of the parking lot can be controlled, so as to realize the management of the barrier 3.

[0046] The parking lock 21 includes a baffle 211, a slider 212 and a support rod 213. One end of the slider 212 and the support rod 213 are both slidably arranged on the mobile structure 22. One end of the baffle 211 is hinged to the slider 212, and the other end of the support rod 213 is hinged to the bottom of the baffle 211. The slider 212 and the support rod 213 are both provided with driving members, and the two sets of driving members respectively drive the slider 212 and the support rod 213 to slide along the direction of the mobile structure 22. During use, the support rod 213 is arranged parallel to the mobile structure 22, so that the baffle 211 is arranged parallel to the ground, the parking lock 21 is closed, and the vehicle can enter and exit normally. Parking space; when the parking lock 21 is at a safe distance from the vehicle, the driving member on the support rod 213 drives the support rod 213 to move toward the side where the slider 212 is located. During the movement of the support rod 213, the baffle 211 is driven to rotate, and the baffle 211 forms an angle with the ground. The baffle 211 is used to lock the vehicle; when the distance between the parking lock 21 and the vehicle is too large or too small, the two sets of driving members simultaneously drive the slider 212 and the support rod 213 to move on the mobile structure 22, so that the baffle 211 approaches or moves away from the vehicle to a safe distance, and the driving member on the support rod 213 moves, driving the baffle 211 to move until the parking lock 21 is fixed.

[0047] Working principle: after the vehicle enters parking lot 1 through the entrance and exit of parking lot 1, the time for the vehicle to enter parking lot 1 is calculated, and t1 and t2 are both defined as 5 minutes. When it is detected that the vehicle has not entered the parking space after 15 minutes of entering the parking lot, the vehicle is warned; before the vehicle enters the parking space, the corresponding first sensor on the parking space detects the length of the vehicle and compares the length of the vehicle to ensure that the entering vehicle is an authorized parking vehicle. After the vehicle enters the parking space and stops, the second sensor is used to detect the distance between the parking lock 21 and the vehicle, and the position of the parking lock 21 is adjusted to ensure that the parking lock 21 and the vehicle are within a safe distance. The parking lock 21 is started to lock the vehicle, and the timing module is started to calculate the parking fee; before leaving the parking space, after the parking fee is paid through a third-party payment platform, the parking lock 21 is closed, and the vehicle can leave the parking space. After detecting that the time from the closing of the parking lock 21 to the vehicle leaving parking lot 1 exceeds 5 minutes, the vehicle is warned to prevent the vehicle from staying in parking lot 1 for too long and affecting the traffic conditions in parking lot 1.

[0048] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A smart parking ground lock, comprising a parking lot (1) with a plurality of parking spaces, each of which is provided with a ground lock structure (2), characterized in that: The ground lock structure (2) comprises a parking lock (21) and a moving structure (22), wherein the parking lock (21) is slidably arranged in the moving structure (22) so that the parking lock (21) is close to or away from the vehicle, a first sensor for detecting the length of the vehicle is arranged outside the parking space, and a second sensor is arranged on the side of the parking lock (21) close to the parking space; a detection module (101) is arranged on the parking space, and the detection module (101) comprises a visual detection unit and a parking detection unit, wherein the visual detection unit is used to obtain data in the first sensor and provide vehicle information, and the parking detection unit is used to obtain data in the second sensor and provide a distance B1 from the vehicle to the parking lock (21) to detect the parking position, and a first controller is arranged on the parking lock (21), and the first controller is used to detect the vehicle position and drive the parking lock (21) to rise or retract.

2. The intelligent parking ground lock according to claim 1, characterized in that: The parking lock (21) further comprises a vehicle comparison module (201), a parking processing module (202), a parking lock control module (203) and a parking database; The vehicle comparison module (201) and the parking processing module (202) are both connected to a parking space database, wherein b1, b2 and parameters of vehicles of various brands are stored in the parking space database, wherein b1 is the minimum safety distance from the parking space lock (21) to the vehicle, and b2 is the maximum safety distance from the parking space lock (21) to the vehicle; The vehicle comparison module (201) is used to obtain vehicle information in the visual detection unit and vehicle parameters of each brand in the parking space database, and compare the vehicle information and each vehicle parameter. When the vehicle is an authorized parking vehicle, the vehicle can enter the parking space; when the vehicle is an unauthorized parking vehicle, the parking space lock (21) is activated and the vehicle cannot enter the parking space; The parking processing module (202) is used to obtain data B1 in the parking detection unit, and b1 and b2 in the parking space database. The parking processing module (202) issues a start command when B1 is greater than b1 and less than b2 according to the comparison result of B1, b1 and b2, and issues a correction command when B1 is less than b1 or B1 is greater than b2; The parking lock control module (203) starts the parking lock (21) when the parking processing module (202) issues a start command, and controls the parking lock (21) to move so that B1 is between b1-b2 when the parking processing module (202) issues a correction command.

3. The intelligent parking ground lock according to claim 2, characterized in that: When B1 is less than b1, the parking processing module (202) issues a first correction command, and the parking lock control module (203) controls the parking lock (21) to move to a side away from the vehicle so that the parking lock (21) is away from the vehicle; when B1 is greater than b2, the parking processing module (202) issues a second correction command, and the parking lock control module (203) controls the parking lock (21) to move toward the vehicle so that the parking lock (21) is close to the vehicle.

4. The intelligent parking ground lock according to claim 2, characterized in that: The parking processing module (202) is also provided with a real-time detection unit. When the distance from the parking lock (21) to the front of the vehicle reaches a safe distance, and B1 is greater than b1 and less than b2, the correction signal is stopped and a start command is issued. If B1 is still between b1 and b2, the correction command continues to be issued.

5. The intelligent parking ground lock according to claim 1, characterized in that: The parking lock (21) also includes a charging module (401), which includes a timing unit, a billing unit, a vehicle identification unit, and an electronic payment unit. The vehicle identification unit is used to obtain information in the second sensor and obtain license plate information. The timing unit is used to obtain the parking time T3 after the vehicle enters the parking space. The billing unit is used to obtain T3 and calculate the parking fee. The electronic payment module is used to connect to a third-party payment platform and generate a corresponding order for paying the parking fee. After the payment is completed, the charging module (401) issues a closing command, and the parking lock control module (203) drives the parking lock (21) to reset.

6. The intelligent parking ground lock according to claim 1, characterized in that: The parking space lock (21) is provided with a QR code, and the QR code is scanned to connect to the electronic payment module corresponding to the parking space, query the corresponding order information and make payment.

7. The intelligent parking ground lock according to claim 1, characterized in that: The third-party payment platform is a mobile phone APP. Users register and bind their license plate information. Based on the license plate information, they can obtain the corresponding order information in the APP and complete the payment.

8. The intelligent parking ground lock according to claim 1, characterized in that: The parking lock (21) comprises a baffle (211), a slider (212) and a support rod (213); one end of the slider (212) and the support rod (213) are both slidably arranged on the moving structure (22); one end of the baffle (211) is hinged on the slider (212); the other end of the support rod (213) is hinged on the bottom of the baffle (211); and driving members are arranged on the slider (212) and the support rod (213); two groups of driving members respectively drive the slider (212) and the support rod (213) to slide along the moving structure (22).

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