Multi-element intelligent new media protection door

Abstract

The application discloses a diversified intelligent new media protection air-tight door and belongs to the technical field of protection air-tight doors, and the technical scheme is as follows: the protection air-tight door comprises a protection door body and two groups of bearing hinge seats, hinge leaves are arranged on the upper and lower sides of the protection door body, rolling mechanisms are symmetrically arranged at the lower end of the protection door body, the rolling mechanisms are used for converting sliding friction between the protection door body and the ground into rolling friction so as to reduce opening and closing resistance, the rolling mechanism comprises rolling balls symmetrically arranged in the lower end of the protection door body and used for bearing part of the gravity of the protection door body and rolling along a set track, rolling bearings are arranged in the two groups of bearing hinge seats, and the two hinge leaves are respectively inserted into the rolling bearings, the effect is that the time consumption of single opening and closing operation is short, the physical consumption is small, the operator can be prevented from muscle strain, the door body can be quickly closed to form effective protection in an emergency state, and therefore the emergency response capability and use reliability of the air defense engineering in wartime are improved.

Description

Technical Field

[0001] This invention belongs to the field of protective airtight door technology, and in particular to a diversified intelligent new media protective airtight door. Background Technology

[0002] Protective airtight doors are special doors installed at the entrances and exits of civil defense projects, combining structural protection and airtight isolation functions. The door leaf and frame are made of high-strength steel or reinforced concrete, and are equipped with a multi-point locking mechanism and a ring-shaped rubber sealing strip. When closed, the locking device presses the door leaf tightly against the door frame, and airtightness is achieved by the deformation of the sealing strip. It can simultaneously resist the infiltration of nuclear explosion shock waves, conventional weapon fragments, and chemical, biological, and radioactive pollutants.

[0003] The diversified intelligent new media protective airtight door is a new type of door equipment that integrates the protective and airtight functions of traditional civil defense engineering with modern intelligent control, Internet of Things and multimedia information interaction technologies. While maintaining the original shock wave resistant structure, multi-point locking mechanism and rubber sealing strip airtight mechanism, the door integrates position sensors, force sensing modules, motor drive units, wireless communication interfaces and embedded display terminals, which can monitor the door opening and closing status, sealing pressure and environmental parameters in real time.

[0004] While existing diversified intelligent new media protective airtight doors integrate intelligent control and multimedia interaction modules on the basis of traditional protective airtight doors, their door structure still uses high-strength steel or reinforced concrete, resulting in door panels that generally weigh hundreds of kilograms or even several tons. At the same time, the manual opening and closing mechanism lacks an effective gravity balance or power-assisted design. Operators must overcome huge rotational inertia and hinge friction resistance to complete the opening and closing action. Each operation is time-consuming and physically demanding. These defects not only prevent the door from closing quickly to form effective protection in emergency alarm situations, but also make it very easy for operators to suffer muscle strains due to sudden excessive force, thus seriously weakening the emergency response capability and reliability of civil defense projects in wartime.

[0005] The purpose of this invention is to provide a diversified intelligent new media protective airtight door to solve the problems mentioned in the background art. Summary of the Invention

[0006] The purpose of this invention is to provide a diversified intelligent new media protective airtight door to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a diversified intelligent new media protective airtight door, comprising a protective door body and two sets of hinge seats;

[0008] The protective door body is equipped with hinges on one side, both at the top and bottom.

[0009] The lower end of the protective door body is symmetrically provided with a rolling mechanism, which is used to convert the sliding friction between the protective door body and the ground into rolling friction, so as to reduce the opening and closing resistance.

[0010] The rolling mechanism includes symmetrically rolled balls disposed in the lower end of the protective door body, which are used to bear part of the weight of the protective door body and roll along a set trajectory.

[0011] Both sets of hinge seats are equipped with rolling bearings, and the two hinges are respectively inserted into the opposite rolling bearings to convert the sliding friction between the two hinges and the lower hinge seat into rolling friction, thereby reducing the rotational resistance of the protective door body when it is opened and closed.

[0012] Slide rails are provided on the ground corresponding to the movement trajectories of the two balls. The two slide rails are in the shape of an arc corresponding to the rotation of the protective door body around the hinge. They are used to guide the two balls to roll along the arc trajectory, converting the sliding friction between the lower end of the protective door body and the ground into rolling friction. This reduces the horizontal resistance when the protective door body is opened and closed, allowing the operator to push the door more easily and quickly, meeting the need for rapid closing in emergency situations.

[0013] The lower end of the protective door body is provided with a cleaning mechanism corresponding to the two ball bearings, which is used to remove the debris accumulated on the surface of the two ball bearings and inside the two slide rails, so as to prevent the debris from increasing the rolling friction resistance and thus maintaining the low friction state of the protective door body when opening and closing for a long time.

[0014] The cleaning mechanism includes scrapers corresponding to the outer sides of the two balls. The cleaning ends of the two scrapers respectively contact the surface of the lower ball, and are used to scrape off the debris attached to the surface of the two balls when they roll, preventing dirt from entering the lower slide rail with the two balls and causing increased rolling resistance, thereby keeping the two balls rolling smoothly and reducing the manpower required to open and close the protective door body.

[0015] The lower end of the protective door body is symmetrically provided with cleaning brushes. The cleaning ends of the two sets of cleaning brushes respectively contact the bottom of the slide rails to clean the debris deposited on the bottom surface of the two slide rails, preventing the debris from accumulating in the two slide rails and increasing the rolling resistance of the two balls, thereby maintaining a low friction state when the protective door body is opened and closed for a long time.

[0016] Both slide rails are provided with small drain ports, and both drain ports are provided with inclined sliding plates to automatically guide the debris swept up by the two cleaning brushes to the outside of the two slide rails, preventing the debris from accumulating again inside the two slide rails, thereby maintaining the long-term cleanliness of the bottom surface of the two slide rails and ensuring that the rolling resistance of the two balls is always at a low level.

[0017] When the protective door body needs to be opened or closed, the operator applies a pushing force, and the two balls roll along the opposite slide rails, converting the sliding friction between the lower end of the protective door body and the ground into rolling friction.

[0018] At the same time, the two rolling bearings will transform the sliding friction between the hinge and the bearing seat into rolling friction.

[0019] The two scrapers scrape off the debris attached to their surfaces as the two balls roll, the cleaning brush sweeps the dust on the bottom of the slide rail, and the drain outlet and slide plate discharge the debris to the outside of the slide rail. This allows the operator to quickly and easily push the protective door body to complete the opening and closing action by overcoming only a small moment of rotational inertia and residual frictional resistance.

[0020] Furthermore, protective sleeves are respectively wrapped around the outside of the two slide rails. The two protective sleeves are made of rubber and are used to prevent external debris from entering the interior of the two slide rails and to buffer the impact generated when the protective door body is opened and closed.

[0021] Furthermore, the two scrapers are funnel-shaped and are used to scrape away debris adhering to the surfaces of the two balls from above and from the sides as the balls roll.

[0022] Furthermore, both scrapers are provided with multiple diverging guide grooves to guide the debris scraped off from the surface of the ball by the two scrapers to the sides or downwards along each guide groove, preventing the debris from accumulating on the two scrapers and affecting the subsequent scraping effect.

[0023] Furthermore, a handwheel is rotatably provided on the protective door body for manually driving the locking mechanism to tighten or loosen the sealing strip.

[0024] Furthermore, limit blocks are provided at both ends of the two slide rails. The limit blocks are used to limit the rolling stroke of the relative balls and prevent the two balls from coming off the relative slide rails during the opening and closing of the protective door body.

[0025] Furthermore, the protective door body is internally equipped with an attitude sensor and a wireless communication module. The attitude sensor is used to monitor the opening and closing angle and movement status of the door in real time, and the wireless communication module is used to send the door status information to a remote monitoring center or mobile terminal and receive remote control commands.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] This invention utilizes a rolling mechanism and a cleaning mechanism mounted on the protective door body. When the protective door needs to be opened or closed, the operator applies a horizontal pushing force, and the symmetrically arranged ball bearings at the lower end of the door body roll along the arc-shaped slide rail, converting the sliding friction between the door leaf and the ground into rolling friction. Simultaneously, the rolling bearings in the hinge seat convert the sliding friction between the hinge leaf and the hinge seat into rolling friction, thereby significantly reducing the horizontal and rotational resistance during opening and closing. During the rolling of the ball bearings, a trumpet-shaped scraper scrapes away surface debris from above and sides, and the scraped debris is discharged through the diverging guide grooves on the scraper. At the same time, the cleaning brush continuously cleans the bottom surface of the slide rail. Accumulated dust is swept into a tiny drain and automatically discharged via a tilting slide, preventing secondary accumulation. The rubber protective cover on the outside of the slide rail further prevents external dust and moisture from entering, extending the cleaning cycle. This effectively solves the problems of heavy door weight, high opening and closing resistance, time-consuming and laborious operation, and easy muscle strain in existing technologies. It achieves the technical effect of short opening and closing time and low physical exertion, avoiding muscle strain caused by sudden excessive force on the operator, and ensuring that the door can close quickly to form effective protection in emergency alarm state, improving the emergency response capability and reliability of civil defense projects in wartime. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the hinge structure in this invention;

[0031] Figure 3 This is a schematic diagram of the ball bearing structure in this invention;

[0032] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0033] Figure 5 This is a schematic diagram of the slide rail structure in this invention;

[0034] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point B.

[0035] Explanation of reference numerals in the attached figures:

[0036] In the picture:

[0037] 1. Protective door body; 2. Handwheel; 3. Hinge seat; 4. Hinge; 5. Rolling mechanism; 501. Ball bearing; 502. Rolling bearing; 503. Slide rail; 504. Protective sleeve; 505. Limiting block; 6. Cleaning mechanism; 601. Scraper; 602. Cleaning brush; 603. Drain outlet; 604. Slide plate; 605. Drainage channel. Detailed Implementation

[0038] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0039] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this invention, and are explained here together.

[0040] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0041] Please see Figures 1 to 6 As shown, the present invention provides a diversified intelligent new media protective airtight door, including a protective door body 1 and two sets of hinge seats 3;

[0042] Hinges 4 are installed on one side of the protective door body 1, both vertically and horizontally.

[0043] A rolling mechanism 5 is symmetrically arranged at the lower end of the protective door body 1 to convert the sliding friction between the protective door body 1 and the ground into rolling friction, so as to reduce the opening and closing resistance.

[0044] The rolling mechanism 5 includes symmetrically rolled balls 501 in the lower end of the protective door body 1, which are used to bear part of the weight of the protective door body 1 and roll along a set trajectory;

[0045] Both sets of hinge seats 3 are equipped with rolling bearings 502, and two hinges 4 are respectively inserted into the opposite rolling bearings 502 to convert the sliding friction between the two hinges 4 and the hinge seats 3 into rolling friction, so as to reduce the rotational resistance when the protective door body 1 is opened and closed.

[0046] Slide rails 503 are respectively provided on the ground corresponding to the movement trajectory of the two balls 501. The two slide rails 503 are in the shape of an arc corresponding to the rotation of the protective door body 1 around the hinge 4. They are used to guide the two balls 501 to roll along the arc trajectory, converting the sliding friction between the lower end of the protective door body 1 and the ground into rolling friction, thereby reducing the horizontal resistance when the protective door body 1 is opened and closed, so that the operator can push the door more easily and quickly, and meet the need for rapid closing in an emergency.

[0047] Cleaning mechanisms 6 are provided at the lower end of the protective door body 1 corresponding to the two ball bearings 501, respectively, to remove debris accumulated on the surface of the two ball bearings 501 and inside the two slide rails 503, so as to prevent debris from increasing the rolling friction resistance, thereby maintaining the low friction state of the protective door body 1 when opening and closing for a long time, ensuring that the door can be closed quickly and easily in an emergency, and avoiding operation delays or increased physical exertion caused by debris jamming.

[0048] The cleaning mechanism 6 includes scrapers 601 corresponding to the outer sides of the two balls 501. The cleaning ends of the two scrapers 601 contact the surface of the lower ball 501 respectively, and are used to scrape off the debris attached to the surface of the two balls 501 when they roll, so as to prevent the dirt from entering the lower slide rail 503 with the two balls 501 and causing an increase in rolling resistance, thereby keeping the two balls 501 rolling smoothly, reducing the manpower required to open and close the protective door body 1, and ensuring that the door can be closed quickly and easily in an emergency.

[0049] Cleaning brushes 602 are symmetrically arranged at the lower end of the protective door body 1. The cleaning ends of the two sets of cleaning brushes 602 contact the bottom of the slide rail 503 respectively, and are used to clean the debris deposited on the bottom surface of the two slide rails 503. This prevents the debris from accumulating in the two slide rails 503 and increasing the rolling resistance of the two balls 501, thereby maintaining a low friction state when the protective door body 1 is opened and closed for a long time.

[0050] Both slide rails 503 are provided with small drain ports 603, and both drain ports 603 are provided with inclined sliding plates 604, which are used to automatically guide the debris swept by the two cleaning brushes 602 to the outside of the two slide rails 503, preventing the debris from accumulating again in the two slide rails 503, thereby maintaining the long-term cleanliness of the bottom surface of the two slide rails 503 and ensuring that the rolling resistance of the two balls 501 is always at a low level.

[0051] When the protective door body 1 needs to be opened or closed, the operator applies a pushing force, and the two balls 501 roll along the opposite slide rails 503, turning the sliding friction between the lower end of the protective door body 1 and the ground into rolling friction.

[0052] At the same time, the two rolling bearings 502 convert the sliding friction between the relative hinge 4 and the bearing seat 3 into rolling friction.

[0053] Two scrapers 601 scrape off the debris attached to the surface of the two balls 501 as they roll, and cleaning brush 602 cleans the dust on the bottom of the slide rail 503. The drain port 603 and the slide plate 604 discharge the debris to the outside of the slide rail 503, so that the operator only needs to overcome a small moment of rotational inertia and residual frictional resistance to quickly and easily push the protective door body 1 to complete the opening and closing action.

[0054] When an operator applies a horizontal pushing force, the ball bearing 501 at the lower end of the protective door body 1 rolls along the arc-shaped slide rail 503, converting the sliding friction between the protective door body 1 and the ground into rolling friction. Simultaneously, the rolling bearing 502 within the hinge seat 3 converts the sliding friction between the hinge 4 and the hinge seat 3 into rolling friction. The combined effect of these two factors significantly reduces the horizontal and rotational resistance during opening and closing, allowing the operator to easily push the door leaf by overcoming only a small moment of inertia and residual friction. Meanwhile, during the rolling of the ball bearing 501, the trumpet-shaped scraper 601 scrapes away surface debris from above and sides, and the guide groove 605 guides the scraped debris... The cleaning brush 602 continuously cleans the dust on the bottom of the slide rail 503 and automatically discharges the debris through the small drain port 603 and the tilting slide plate 604. The rubber protective sleeve 504 on the outside of the slide rail 503 further blocks external dust and moisture, thus maintaining a low friction state for a long time and avoiding the increase in resistance due to debris jamming. Therefore, it can achieve the technical effect of short opening and closing time and low physical exertion for a single operation. It not only avoids muscle strain caused by sudden excessive force by the operator, but also ensures that the door can be quickly closed to form effective protection in the event of an emergency alarm, thereby improving the emergency response capability and reliability of civil defense projects in wartime.

[0055] The two slide rails 503 are each covered with a protective sleeve 504. The two protective sleeves 504 are made of rubber and are used to prevent external debris from entering the interior of the two slide rails 503 and to buffer the impact generated when the protective door body 1 is opened and closed. They can effectively prevent external dust, mud, water and other debris from entering the interior of the slide rails 503, reduce the risk of contamination between the ball bearings 501 and the slide rails 503. At the same time, during the opening and closing of the protective door body 1, the protective sleeves 504 can buffer the impact and vibration generated by the movement of the protective door body 1, reduce the collision noise and wear between metal parts, extend the cleaning cycle of the slide rails 503 and the rolling mechanism 5, maintain a low friction and low resistance opening and closing state for a long time, and further improve the service life of the protective airtight door in harsh environments and the reliability of emergency operation.

[0056] The two scrapers 601 are funnel-shaped and are used to scrape away debris adhering to the surface of the two balls 501 from above and sides when the balls 501 are rolling. This allows for multi-angle and all-round scraping of debris adhering to the surface of the balls 501, effectively increasing the contact area and coverage of the scrapers 601 and the balls 501. This avoids the defect of traditional flat scrapers 601 that easily miss lateral debris, ensuring that the surface of the balls 501 is thoroughly cleaned. This further reduces the risk of increased rolling resistance due to debris residue, maintains the ease and smoothness of door opening and closing in the long term, and improves the operational reliability of the protective door body 1 in harsh environments and emergency situations.

[0057] Both scrapers 601 are provided with multiple diverging guide grooves 605, which are used to guide the debris scraped off by the two scrapers 601 from the surface of the opposing ball bearings 501 to the sides or downwards along the guide grooves 605. This prevents the debris from accumulating on the two scrapers 601 and affecting the subsequent scraping effect, ensuring that the scrapers 601 maintain good scraping efficiency for a long time. It also avoids the scrapers 601 from becoming clogged or losing their cleaning function due to the accumulation of debris, thereby further maintaining the smooth rolling of the ball bearings 501 and the low friction state of the opening and closing system, and improving the operational reliability and ease of use of the protective door body 1 in long-term use and emergency situations.

[0058] A handwheel 2 is rotatably mounted on the protective door body 1 for manually driving the locking mechanism to tighten or loosen the sealing strip. By turning the handwheel 2, the operator can convert a small amount of hand torque into the tightening force of the locking mechanism, thereby achieving the specified compression amount of the sealing strip between the protective door body 1 and the door frame, thus achieving reliable airtight protection. The setting of the handwheel 2 separates the locking operation from the door opening and closing action. The operator can independently and effortlessly complete the sealing and tightening after the door is closed, avoiding the overall door closing time being prolonged due to excessive locking resistance. At the same time, it is convenient to open quickly in wartime or emergency situations, further improving the ease of use and emergency response capability of the protective airtight door.

[0059] Limit blocks 505 are provided at both ends of the two slide rails 503. The limit blocks 505 are used to limit the rolling stroke of the relative balls 501 to prevent the two balls 501 from coming off the relative slide rails 503 during the opening and closing of the protective door body 1. By setting the limit blocks 505, the rolling mechanism 5 is ensured to always work within the effective stroke, avoiding the tilting of the protective door body 1, sudden increase in rolling resistance, or even jamming caused by the balls 501 falling off. This further improves the stability and safety of the opening and closing of the protective door body 1, and ensures that the door can still complete the closing action smoothly and reliably in an emergency.

[0060] The protective door body 1 is equipped with an attitude sensor and a wireless communication module. The attitude sensor is used to monitor the opening and closing angle and movement status of the door in real time, and the wireless communication module is used to send the door status information to a remote monitoring center or mobile terminal and receive remote control commands, so as to realize remote status perception and rapid response of the door in wartime or emergency, make up for the delays that may occur in manual operation, and further improve the intelligence level and emergency protection capability of civil defense projects.

[0061] Working principle: When the protective door body 1 needs to be opened or closed, the operator applies a horizontal pushing force. The ball bearings 501 symmetrically arranged at the lower end of the protective door body 1 roll along the arc-shaped slide rail 503 laid on the ground, which transforms the sliding friction between the door leaf and the ground into rolling friction. At the same time, the rolling bearings 502 in the two sets of hinge seats 3 transform the sliding friction between the hinge 4 and the hinge seat 3 into rolling friction. Together, they greatly reduce the horizontal resistance and rotational resistance when the door leaf is opened and closed.

[0062] During the rolling process of the ball 501, the trumpet-shaped scraper 601 located on the outside of the ball 501 scrapes away the dust, mud and other debris attached to the surface of the ball 501 from above and side. The scraped debris is discharged to the sides or down along the diverging guide groove 605 on the scraper 601 to prevent the accumulation of debris.

[0063] Meanwhile, the cleaning brushes 602 symmetrically arranged at the lower end of the protective door body 1 continuously clean the debris deposited on the bottom surface of the slide rail 503, sweep it into the tiny drain port 603 opened on the slide rail 503, and automatically discharge the debris to the outside of the slide rail 503 through the inclined sliding plate 604 in the drain port 603, avoiding secondary accumulation. The rubber protective sleeve 504 wrapped around the outside of the slide rail 503 further prevents external dust and moisture from entering and extends the cleaning cycle.

[0064] Once the door is moved to the predetermined position, the operator turns handwheel 2, which amplifies the torque through the reduction gear set and drives the locking mechanism to press the sealing strip, thus completing the protective sealing. During the entire opening, closing and locking process, the attitude sensor embedded in the door body monitors the door angle and movement status in real time, and sends the status information to the remote monitoring center or mobile terminal through the wireless communication module. It can also receive remote control commands to realize intelligent management.

[0065] Therefore, operators only need to overcome a small moment of rotational inertia and residual frictional resistance to quickly and easily open and close the door. Each operation is short and requires little physical exertion, which avoids muscle strain caused by sudden excessive force and ensures that the door can quickly form effective protection in the event of an emergency alarm, thereby improving the emergency response capability and reliability of civil defense projects during wartime.

[0066] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A diversified intelligent new media protective airtight door, characterized in that: Includes the protective door body (1) and two sets of hinge seats (3); The protective door body (1) has hinges (4) installed on one side at the top and bottom. The lower end of the protective door body (1) is symmetrically provided with a rolling mechanism (5) to convert the sliding friction between the protective door body (1) and the ground into rolling friction, so as to reduce the opening and closing resistance; The rolling mechanism (5) includes symmetrically rolled balls (501) in the lower end of the protective door body (1), which are used to bear part of the weight of the protective door body (1) and roll along a set trajectory; Both sets of hinge seats (3) are provided with rolling bearings (502), and the two hinges (4) are respectively inserted into the rolling bearings (502) to convert the sliding friction between the two hinges (4) and the lower hinge seat (3) into rolling friction, so as to reduce the rotational resistance of the protective door body (1) when it is opened and closed. Slide rails (503) are respectively provided on the ground corresponding to the movement trajectory of the two balls (501). The two slide rails (503) are in the shape of an arc corresponding to the rotation of the protective door body (1) around the hinge (4). They are used to guide the two balls (501) to roll along the arc trajectory, and convert the sliding friction between the lower end of the protective door body (1) and the ground into rolling friction, thereby reducing the horizontal resistance when the protective door body (1) is opened and closed, so that the operator can push the door more easily and quickly to meet the need for rapid closing in an emergency. The lower end of the protective door body (1) is provided with a cleaning mechanism (6) corresponding to the two balls (501) to remove the debris accumulated on the surface of the two balls (501) and inside the two slide rails (503) to prevent the debris from increasing the rolling friction resistance, thereby maintaining the low friction state of the protective door body (1) when opening and closing for a long time. The cleaning mechanism (6) includes scrapers (601) corresponding to the outer sides of the two balls (501). The cleaning ends of the two scrapers (601) respectively contact the surface of the lower ball (501) to scrape off the debris attached to the surface of the two balls (501) when they roll, preventing dirt from entering the lower slide rail (503) with the two balls (501) and causing increased rolling resistance, thereby keeping the two balls (501) rolling smoothly and reducing the manpower required to open and close the protective door body (1). The lower end of the protective door body (1) is symmetrically provided with cleaning brushes (602). The cleaning ends of the two sets of cleaning brushes (602) respectively contact the bottom of the slide rail (503) to clean the debris deposited on the bottom surface of the two slide rails (503), preventing the debris from accumulating in the two slide rails (503) and increasing the rolling resistance of the two balls (501), thereby maintaining the low friction state of the protective door body (1) when opening and closing for a long time. Both slide rails (503) are provided with small drain ports (603), and both drain ports (603) are provided with inclined sliding plates (604) to automatically guide the debris swept out by the two cleaning brushes (602) to the outside of the two slide rails (503), preventing the debris from accumulating again in the two slide rails (503), thereby maintaining the long-term cleanliness of the bottom surface of the two slide rails (503) and ensuring that the rolling resistance of the two balls (501) is always at a low level; When the protective door body (1) needs to be opened or closed, the operator applies a pushing force, and the two balls (501) roll along the opposite slide rails (503) and convert the sliding friction between the lower end of the protective door body (1) and the ground into rolling friction. At the same time, the two rolling bearings (502) transform the sliding friction between the hinge (4) and the bearing seat (3) into rolling friction; The two scrapers (601) scrape off the debris attached to their surfaces as the two balls (501) roll, the cleaning brush (602) sweeps the dust on the bottom of the slide rail (503), and the drain port (603) and the slide plate (604) discharge the debris to the outside of the slide rail (503), so that the operator only needs to overcome a small moment of rotational inertia and residual frictional resistance to quickly and easily push the protective door body (1) to complete the opening and closing action.

2. The diversified intelligent new media protective airtight door according to claim 1, characterized in that: The two slide rails (503) are respectively wrapped with protective sleeves (504). The two protective sleeves (504) are made of rubber and are used to prevent external debris from entering the interior of the two slide rails (503) and to buffer the impact generated when the protective door body (1) is opened and closed.

3. The diversified intelligent new media protective airtight door according to claim 1, characterized in that: The two scrapers (601) are funnel-shaped and are used to scrape away debris adhering to the surface of the two balls (501) from above and from the side as the two balls (501) roll.

4. The diversified intelligent new media protective airtight door according to claim 2, characterized in that: Both scrapers (601) are provided with a plurality of diverging guide grooves (605) to guide the debris scraped off by the two scrapers (601) from the surface of the ball (501) to the sides or downwards along each of the guide grooves (605), so as to prevent the debris from accumulating on the two scrapers (601) and affecting the subsequent scraping effect.

5. The diversified intelligent new media protective airtight door according to claim 1, characterized in that: A handwheel (2) is rotatably provided on the protective door body (1) for manually driving the locking mechanism to tighten or loosen the sealing strip.

6. The diversified intelligent new media protective airtight door according to claim 1, characterized in that: Limiting blocks (505) are provided at both ends of the two slide rails (503). The limiting blocks (505) are used to limit the rolling stroke of the relative balls (501) to prevent the two balls (501) from coming off the relative slide rails (503) during the opening and closing of the protective door body (1).

7. The diversified intelligent new media protective airtight door according to claim 1, characterized in that: The protective door body (1) is internally equipped with an attitude sensor and a wireless communication module. The attitude sensor is used to monitor the opening and closing angle and movement status of the door in real time, and the wireless communication module is used to send the door status information to the remote monitoring center or mobile terminal and receive remote control commands.

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