Urban rail machine room inspection demonstration box

Abstract

The invention discloses an urban rail machine room inspection demonstration box which comprises a box body, a rotating shaft is installed on one side of the top end of the box body, and a first connecting rod is installed at one end of a fourth gear. A rotating block is installed at the bottom end of the box body, the rotating block rotates to drive a first gear to rotate, the first gear rotates to drive a second gear to rotate, the second gear rotates to drive a third gear to rotate through a second connecting rod, and the third gear rotates to drive a fourth gear to rotate. A fourth gear rotates through a fifth gear of a first connecting rod, a worm is arranged at the bottom end of each fixing piece, the fifth gear is meshed with the worm at the bottom end of the fixing piece, the fifth gear rotates to drive the fixing pieces to rotate and drive the fixing pieces to ascend, and therefore the four fixing pieces can be disassembled at the same time only by rotating a rotating block, and the disassembly efficiency is improved. And then the mainboard can be disassembled, so that the purpose that the urban rail machine room inspection demonstration box is convenient to disassemble and assemble is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of urban rail machine room inspection, and in particular to an urban rail machine room inspection demonstration box. Background Art

[0002] As an important part of urban public transportation, the safe and stable operation of urban rail transit system is of great significance to ensure citizens' travel and relieve urban traffic pressure. In the daily operation and maintenance of urban rail transit system, it is necessary to conduct regular inspections on various electrical equipment in the computer room to timely discover and deal with various potential safety hazards of the equipment and ensure the safe and stable operation of the urban rail transit system. The traditional manual inspection method has problems such as long inspection cycle, low efficiency, and easy to miss inspections. It is difficult to meet the needs of modern urban rail transit system for efficient, accurate and real-time inspections. It has become an inevitable trend in the industry to realize the automation and intelligence of inspection tasks, improve inspection efficiency and quality, and reduce operation and maintenance and labor costs. The urban rail computer room inspection demonstration box is designed based on the HongZOS distributed operating system provided by the microkernel for all scenarios. It has the characteristics of smooth experience in all scenarios, architecture-level trusted security, and seamless collaboration across terminals. The demonstration box integrates multiple demonstration modules such as touch, intelligent perception, intelligent control, and online detection, which can realize interactive operation demonstrations of daily inspection scenarios such as voltage / current monitoring and early warning of UPS batteries in urban rail computer rooms, temperature / humidity monitoring and early warning of computer rooms, and lighting control of computer rooms.

[0003] Today's urban rail machine room inspection demonstration box can basically meet people's needs, but there are still some problems. The specific problems are as follows:

[0004] 1. The problem that it is difficult to disassemble and assemble the device of the urban rail machine room inspection demonstration box. When the device is in use, it is difficult to disassemble and assemble the internal parts. When the parts on the device are damaged, it is also difficult to replace the damaged parts.

[0005] 2. The inspection demonstration box in the urban rail machine room is difficult to absorb shock. Since the device is used outside for a long time, the device inside may vibrate when the device is taken out, which may easily cause damage to the parts. Summary of the invention

[0006] The purpose of the invention is to provide a city rail machine room inspection demonstration box, so as to solve the defects of the existing city rail machine room inspection demonstration box that the device is difficult to be disassembled and assembled and the shock absorption is difficult.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an urban rail machine room inspection demonstration box, comprising a box body;

[0008] A rotating shaft is installed on one side of the top of the box body, a cover body is installed on the top of the rotating shaft, a shock absorbing structure is installed inside the cover body, and a sealing structure is installed on the inner sides of the box body and the cover body;

[0009] A snap buckle is installed at one end of the box, a handle is installed at one end of the box, a mainboard is installed at the top of the box, a voltage sensor is installed at one end of the top of the mainboard, a temperature and humidity sensor is installed at the other end of the top of the mainboard, an edge gateway is installed at one side of the top of the mainboard, a light controller is installed at one side of the top of the mainboard, a disassembly structure is installed at the top of the mainboard, fixing parts are installed on both sides of the mainboard, and a disassembly structure is installed at the bottom of the mainboard;

[0010] The disassembly structure includes a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a first connecting rod, a second connecting rod and a rotating block. The rotating block is installed at the bottom end of the box body, the first gear is installed at the top of the rotating block, second gears are installed on both sides of the top of the first gear, a second connecting rod is installed on one side of the second gear, a third gear is installed on one side of the second connecting rod, fourth gears are provided at both ends of the third gear, and the first connecting rod is installed on one end of the fourth gear.

[0011] When in use, it first fully meets the demonstration needs of various machine room inspection scenarios in the urban rail transit system. Demonstrators use handheld devices such as PDA / mobile phones. There is no need to perform any manual networking operations. They only need to touch the handheld device with the touch tag to quickly identify the machine room ID, interact efficiently with the equipment in the machine room, obtain machine room equipment information in real time, and realize the convenient conversion of screenless devices to screened devices and small-screen devices to large-screen devices. Demonstrators use handheld devices such as PDA / mobile phones to view the temperature and humidity data in the machine room simulated by the demonstration box, the voltage / current data of the UPS battery in the machine room, and can manually adjust the equipment parameters through simulation to display various warning information prompts of the equipment.

[0012] Furthermore, a lighting lamp is installed on the top of the mainboard, and the lighting lamps are arranged at equal intervals at one end of the top of the mainboard, and the lighting lamps can provide illumination.

[0013] Furthermore, a card block is provided at the bottom end of the temperature and humidity sensor, a card slot is provided at the top end of the mainboard, and the temperature and humidity sensor and the mainboard form a card-fitting structure, so that the temperature and humidity sensor can be replaced.

[0014] Furthermore, the disassembly and assembly structure includes a baffle, a rotating shaft, a buckle, a press plate and a push plate. The baffle is installed at the top of the main board, the inner side of the baffle is installed with a rotating shaft, the top of the rotating shaft is installed with a buckle, and a press plate is installed at one end of the buckle. The buckle can fix each part.

[0015] Furthermore, a push plate is installed at one end of the buckle, and the push plate is symmetrically distributed about the central axis of the voltage sensor, and pressing the push plate will drive the rotating shaft to rotate.

[0016] Furthermore, a fifth gear is installed at one end of the first connecting rod, and the fifth gear and the fixing member are meshed with each other, and the rotation of the fifth gear will drive the fixing member to rotate.

[0017] Furthermore, the shock absorbing structure includes a lifting plate, a rubber pad, a spring, a damper, a piston, a hydraulic cylinder and a valve, the damper is installed at the bottom end of the cover body, a piston is installed inside the damper, a valve is installed on one side of the damper, a hydraulic cylinder is installed inside the damper, a lifting plate is installed at the bottom end of the damper, and a rubber pad is installed at the bottom end of the lifting plate, a spring is arranged on the outside of the damper, the elasticity of the spring will drive the lifting plate to rise and fall, the rubber pad on the lifting plate is elastic, the rubber pad will press on the top of the part, and the rubber pad can prevent the part from falling off.

[0018] Furthermore, the spring is in a spiral shape, the spring and the lifting plate form an elastic connection, and the spring is elastic.

[0019] Furthermore, the sealing structure includes a sealing block, a sealing groove and an airbag, the sealing groove is arranged at the bottom end of the cover body, the airbag is installed inside the sealing groove, and the sealing block is installed at the top of the box body. The airbag, the sealing block and the sealing groove can cooperate to connect the gap between the box body and the cover body.

[0020] Furthermore, the sealing block and the sealing groove form a snap-fit ​​structure, the outer diameter of the sealing block is smaller than the inner diameter of the sealing groove, and the sealing block can be snapped into the sealing groove.

[0021] The urban rail machine room inspection demonstration box provided by the present invention has the advantages that: a rotating block is installed at the bottom end of the box body, and the rotating block can be driven to rotate by a screwdriver or a wrench. The rotation of the rotating block will drive the first gear to rotate. The rotation of the first gear can drive the second gear meshing with it to rotate. The rotation of the second gear will drive the third gear to rotate through the second connecting rod. The rotation of the third gear will drive the fourth gear meshing with it to rotate. The rotation of the fourth gear will rotate through the fifth gear of the first connecting rod. A worm is provided at the bottom end of the fixing piece. The fifth gear and the worm at the bottom end of the fixing piece are meshed with each other. The rotation of the fifth gear will drive the fixing piece to rotate and drive the fixing piece to rise. In this way, only the rotating block needs to be rotated to simultaneously disassemble the four fixing pieces. Down, the mainboard can be removed, which makes it easier to disassemble the parts on the top of the mainboard. The voltage sensor, temperature and humidity sensor, light controller and edge gateway on the top of the mainboard are all stuck on the top of the mainboard for fixation. The shaft inside the baffle can rotate, and the rotation of the shaft will drive the buckle to rotate. When these parts are stuck on the top of the mainboard, the parts will be pressed on the push plate, so that the push plate will be under pressure and will drive the buckle to rotate. The buckle will be stuck on the surface of these parts to fix the parts. When the parts need to be removed, press the button, pressing the button will drive the buckle to rotate, and the rotation of the buckle will also drive the push plate to rotate. The rotation of the push plate will push these parts out, making it easier to disassemble these parts, so as to achieve the purpose of facilitating the disassembly and assembly of the device in the urban rail machine room inspection demonstration box.

[0022] A spring is installed at the bottom end of the cover body, and the lifting plate and the cover body are connected by a spring and a damper. The spring is elastic, and the elasticity of the spring will drive the lifting plate to rise and fall. The rubber pad on the lifting plate is elastic, and the rubber pad will press on the top of the part. The rubber pad can prevent the parts from falling off and reduce the vibration of the parts. The damper is composed of a piston, a hydraulic cylinder and a valve. The damper can increase the resistance of the lifting plate and make the shock absorbing effect of the lifting plate better, so as to achieve the purpose of reducing the vibration of the parts in the urban rail machine room inspection demonstration box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a front view structural schematic diagram of the present invention;

[0025] Figure 3 It is a front cross-sectional structural schematic diagram of the present invention;

[0026] Figure 4 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0027] Figure 5 For the present invention Figure 4A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the disassembly and assembly structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 8 It is a schematic diagram of a partial cross-sectional structure of the shock absorbing structure of the present invention;

[0031] Fig. 9 It is a three-dimensional structural schematic diagram of the disassembly and assembly structure of the present invention.

[0032] Explanation of the reference numerals in the figure: 1. box body; 2. rotating shaft; 3. cover body; 4. main board; 5. voltage sensor; 6. disassembly and assembly structure; 601. baffle plate; 602. rotating shaft; 603. buckle; 604. press plate; 605. push plate; 7. temperature and humidity sensor; 8. fixing member; 9. buckle; 10. handle; 11. edge gateway; 12. light controller; 13. lighting lamp; 14. disassembly structure; 1401. first gear; 1402. second gear; 1 403, third gear; 1404, fourth gear; 1405, fifth gear; 1406, first connecting rod; 1407, second connecting rod; 1408, rotating block; 15, shock absorbing structure; 1501, lifting plate; 1502, rubber pad; 1503, spring; 1504, damper; 1505, piston; 1506, hydraulic cylinder; 1507, valve; 16, sealing structure; 1601, sealing block; 1602, sealing groove; 1603, airbag. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1-Figure 9 , an embodiment provided by the present invention: a city rail machine room inspection demonstration box, comprising a box body 1.

[0035] A rotating shaft 2 is installed on one side of the top of the box body 1, a cover body 3 is installed on the top of the rotating shaft 2, a shock-absorbing structure 15 is installed inside the cover body 3, and the shock-absorbing structure 15 includes a lifting plate 1501, a rubber pad 1502, a spring 1503, a damper 1504, a piston 1505, a hydraulic cylinder 1506 and a valve 1507. The damper 1504 is installed at the bottom end inside the cover body 3, a piston 1505 is installed inside the damper 1504, a valve 1507 is installed on one side inside the damper 1504, a hydraulic cylinder 1506 is installed inside the damper 1504, a lifting plate 1501 is installed at the bottom end of the damper 1504, and a rubber pad 1502 is installed at the bottom end of the lifting plate 1501, a spring 1503 is arranged on the outside of the damper 1504, the shape of the spring 1503 is spiral, and the spring 1503 and the lifting plate 1501 form an elastic connection.

[0036] Refer to the attached Figure 3 and attached Figure 8 As shown, the lifting plate 1501 and the cover body 3 are connected by a spring 1503 and a damper 1504. The spring 1503 is elastic, and the elasticity of the spring 1503 will drive the lifting plate 1501 to move up and down. The rubber pad 1502 on the lifting plate 1501 is elastic, and the rubber pad 1502 will press on the top of the part. The rubber pad 1502 can prevent the part from falling off and reduce the vibration of the part. The damper 1504 is composed of a piston 1505, a hydraulic cylinder 1506 and a valve 1507. The damper 1504 can strengthen the resistance of the lifting plate 1501, so that the shock absorption effect of the lifting plate 1501 is better.

[0037] A sealing structure 16 is installed on the inner side of the box body 1 and the cover body 3. The sealing structure 16 includes a sealing block 1601, a sealing groove 1602 and an airbag 1603. The sealing groove 1602 is arranged at the bottom end of the cover body 3. The airbag 1603 is installed inside the sealing groove 1602. The sealing block 1601 is installed at the top of the box body 1. The sealing block 1601 and the sealing groove 1602 constitute a snap-fit ​​structure. The outer diameter of the sealing block 1601 is smaller than the inner diameter of the sealing groove 1602.

[0038] Refer to the attached Figure 3-4As shown in the figure, the demo box is equipped with HongZ-RK3588 edge gateway 11. The gateway is designed based on the RK3588 chip and has powerful processing performance. It is also equipped with HongZOS operating system developed by ArcherMind based on OpenHarmony technology base. The system is deeply customized and optimized for multiple industries such as industry, mining, transportation, education, driving training, police, government affairs, smart cities, etc. It fully integrates AI and OTA capabilities, and has industry values ​​such as resource sharing, Internet of Everything, intelligent collaboration, security and trustworthiness. The product can be oriented to ARM PC, smart large screen, edge computing, smart NVR, smart car and other industry customized markets, the application scenarios are very rich, the demonstration box integrates voltage sensor 5, temperature and humidity sensor 7, lighting controller 12 and other Internet of Things devices, and can add and combine modules according to the needs of various demonstration scenarios, fully meeting the demonstration needs of various computer room inspection scenarios in urban rail transit systems. Demonstration personnel use PDA / mobile phones and other handheld devices, without any manual networking operations, just touch the handheld device with the touch tag to quickly identify the computer room ID, interact efficiently with the equipment in the computer room, obtain computer room equipment information in real time, and realize the convenient conversion of screenless devices to screened devices and small-screen devices to large-screen devices. Demonstration personnel use PDA / mobile phones and other handheld devices. By holding the device, you can view the temperature and humidity data in the computer room simulated by the demonstration box, and the voltage / current data of the UPS battery in the computer room in real time. You can manually adjust the device parameters through simulation, and display various warning information prompts of the demonstration device. When the cover 3 is closed, the snap buckle 9 can fix the cover 3. When the cover 3 is closed, the sealing block 1601 at the top of the cover 3 will be stuck into the sealing groove 1602. After the sealing block 1601 is stuck into the sealing groove 1602, the sealing block 1601 will be against the airbag 1603. After the sealing block 1601 squeezes the top of the airbag 1603, the air inside the airbag 1603 will be squeezed to the two sides of the airbag 1603. The two sides of the airbag 1603 expand, and the gap between the cover 3 and the box 1 can be sealed.

[0039] A snap buckle 9 is installed at one end of the box body 1, a handle 10 is installed at one end of the box body 1, a main board 4 is installed at the top of the box body 1, and a lighting lamp 13 is installed at the top of the main board 4, and the lighting lamps 13 are arranged at equal intervals at one end of the top of the main board 4.

[0040] A voltage sensor 5 is installed at one end of the top of the mainboard 4, and a temperature and humidity sensor 7 is installed at the other end of the top of the mainboard 4. A card block is provided at the bottom end of the temperature and humidity sensor 7, and a card slot is provided at the top of the mainboard 4. The temperature and humidity sensor 7 and the mainboard 4 form a card structure.

[0041] An edge gateway 11 is installed on one side of the top of the mainboard 4, a light controller 12 is installed on one side of the top of the mainboard 4, a disassembly structure 6 is installed on the top of the mainboard 4, the disassembly structure 6 includes a baffle 601, a rotating shaft 602, a buckle 603, a press plate 604 and a push plate 605, the baffle 601 is installed on the top of the mainboard 4, the rotating shaft 602 is installed on the inner side of the baffle 601, the buckle 603 is installed on the top of the rotating shaft 602, a push plate 605 is installed on one end of the buckle 603, and the push plates 605 are symmetrically distributed about the central axis of the voltage sensor 5, and a press plate 604 is installed on one end of the buckle 603.

[0042] Refer to the attached Figure 1-2 , Attachment Figure 6 and attached Fig. 9 As shown, the voltage sensor 5, temperature and humidity sensor 7, light controller 12 and edge gateway 11 at the top of the mainboard 4 are all stuck on the top of the mainboard 4 for fixation, and the shaft 602 inside the baffle 601 can rotate, and the rotation of the shaft 602 will drive the buckle 603 to rotate. When these parts are stuck on the top of the mainboard 4, the parts will be pressed on the push plate 605, so that the push plate 605 is subjected to pressure, which will drive the buckle 603 to rotate, and the buckle 603 will be stuck on the surface of these parts to fix the parts. When the parts need to be removed, press the press plate 604, and pressing the button will drive the buckle 603 to rotate, and the rotation of the buckle 603 will also drive the push plate 605 to rotate. The rotation of the push plate 605 will push these parts out, making it easier to remove these parts.

[0043] Fixing members 8 are installed on both sides of the main board 4 , and a disassembly structure 14 is installed on the bottom end of the main board 4 .

[0044] The disassembly structure 14 includes a first gear 1401, a second gear 1402, a third gear 1403, a fourth gear 1404, a fifth gear 1405, a first connecting rod 1406, a second connecting rod 1407 and a rotating block 1408. The rotating block 1408 is installed at the bottom end of the box body 1. The first gear 1401 is installed at the top of the rotating block 1408. The second gear 1402 is installed on both sides of the top of the first gear 1401. The second connecting rod 1407 is installed on one side of the second gear 1402. The third gear 1403 is installed on one side of the second connecting rod 1407. The fourth gear 1404 is arranged at both ends of the third gear 1403. The first connecting rod 1406 is installed at one end of the fourth gear 1404. The fifth gear 1405 is installed at one end of the first connecting rod 1406. The fifth gear 1405 and the fixing member 8 are meshed with each other.

[0045] Refer to the attached Figure 3-4As shown, the rotating block 1408 can be driven to rotate by a screwdriver or a wrench. The rotation of the rotating block 1408 will drive the first gear 1401 to rotate. The rotation of the first gear 1401 can drive the second gear 1402 meshing with it to rotate. The rotation of the second gear 1402 will drive the third gear 1403 to rotate through the second connecting rod 1407. The rotation of the third gear 1403 will drive the fourth gear 1404 meshing with it to rotate. The rotation of the fourth gear 1404 will rotate through the fifth gear 1405 of the first connecting rod 1406. A worm is provided at the bottom end of the fixing member 8. The fifth gear 1405 and the worm at the bottom end of the fixing member 8 are meshed with each other. The rotation of the fifth gear 1405 will drive the fixing member 8 to rotate and drive the fixing member 8 to rise. In this way, only the rotating block 1408 needs to be rotated to simultaneously remove the four fixing members 8. Then the main board 4 can be removed, which is convenient for disassembling the parts at the top of the main board 4.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A city rail machine room inspection demonstration box, comprising a box body (1); Features: A rotating shaft (2) is installed on one side of the top of the box body (1), a cover body (3) is installed on the top of the rotating shaft (2), a shock absorbing structure (15) is installed inside the cover body (3), and a sealing structure (16) is installed on the inner sides of the box body (1) and the cover body (3); A snap-fit ​​buckle (9) is installed at one end of the box (1), a handle (10) is installed at one end of the box (1), a mainboard (4) is installed at the top of the box (1), a voltage sensor (5) is installed at one end of the top of the mainboard (4), a temperature and humidity sensor (7) is installed at the other end of the top of the mainboard (4), an edge gateway (11) is installed at one side of the top of the mainboard (4), a light controller (12) is installed at one side of the top of the mainboard (4), a disassembly structure (6) is installed at the top of the mainboard (4), fixing parts (8) are installed on both sides of the mainboard (4), and a disassembly structure (14) is installed at the bottom of the mainboard (4); The disassembly structure (14) comprises a first gear (1401), a second gear (1402), a third gear (1403), a fourth gear (1404), a fifth gear (1405), a first connecting rod (1406), a second connecting rod (1407) and a rotating block (1408); the rotating block (1408) is mounted at the bottom end of the box body (1); the first gear (1401) is mounted on the top of the rotating block (1408); the second gear (1402) is mounted on both sides of the top of the first gear (1401); the second connecting rod (1407) is mounted on one side of the second gear (1402); the third gear (1403) is mounted on one side of the second connecting rod (1407); the fourth gear (1404) is arranged at both ends of the third gear (1403); and the first connecting rod (1406) is mounted on one end of the fourth gear (1404).

2. The urban rail machine room inspection demonstration box according to claim 1, characterized in that: The top of the main board (4) is equipped with an illumination lamp (13), and the illumination lamps (13) are arranged at equal intervals at one end of the top of the main board (4).

3. The urban rail machine room inspection demonstration box according to claim 1, characterized in that: A card block is provided at the bottom end of the temperature and humidity sensor (7), a card slot is provided at the top end of the main board (4), and the temperature and humidity sensor (7) and the main board (4) form a card-fitting structure.

4. The urban rail machine room inspection demonstration box according to claim 1, characterized in that: The disassembly and assembly structure (6) comprises a baffle (601), a rotating shaft (602), a buckle (603), a pressing plate (604) and a push plate (605); the baffle (601) is mounted on the top of the main board (4); the rotating shaft (602) is mounted on the inner side of the baffle (601); the buckle (603) is mounted on the top of the rotating shaft (602); and the pressing plate (604) is mounted on one end of the buckle (603).

5. The urban rail machine room inspection demonstration box according to claim 4, characterized in that: A push plate (605) is installed at one end of the buckle (603), and the push plate (605) is symmetrically distributed about the central axis of the voltage sensor (5).

6. The urban rail machine room inspection demonstration box according to claim 1, characterized in that: A fifth gear (1405) is installed at one end of the first connecting rod (1406), and the fifth gear (1405) and the fixing member (8) are meshed with each other.

7. The urban rail machine room inspection demonstration box according to claim 1, characterized in that: The shock absorbing structure (15) comprises a lifting plate (1501), a rubber pad (1502), a spring (1503), a damper (1504), a piston (1505), a hydraulic cylinder (1506) and a valve (1507); the damper (1504) is installed at the bottom end inside the cover body (3); a piston (1505) is installed inside the damper (1504); a valve (1507) is installed on one side inside the damper (1504); a hydraulic cylinder (1506) is installed inside the damper (1504); a lifting plate (1501) is installed at the bottom end of the damper (1504); and a rubber pad (1502) is installed at the bottom end of the lifting plate (1501); and a spring (1503) is arranged on the outside of the damper (1504).

8. The urban rail machine room inspection demonstration box according to claim 7, characterized in that: The spring (1503) is in a spiral shape, and the spring (1503) and the lifting plate (1501) form an elastic connection.

9. The urban rail machine room inspection demonstration box according to claim 1, characterized in that: The sealing structure (16) comprises a sealing block (1601), a sealing groove (1602) and an airbag (1603); the sealing groove (1602) is arranged at the bottom end of the cover body (3); the airbag (1603) is installed inside the sealing groove (1602); and the sealing block (1601) is installed at the top end of the box body (1).

10. The urban rail machine room inspection demonstration box according to claim 9, characterized in that: The sealing block (1601) and the sealing groove (1602) form a snap-fit ​​structure, and the outer diameter of the sealing block (1601) is smaller than the inner diameter of the sealing groove (1602).

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