Radiation shielding door with adaptive sealing structure

Abstract

The present invention discloses a radiation shielding door with an adaptive sealing structure, comprising a door frame and a door body, the door body comprising a main radiation door and a secondary radiation door, the main radiation door being rotatably mounted within the door body via a door shaft, the secondary radiation door being retractably positioned at the opening and closing end of the main radiation door; a drive assembly located within the main radiation door and linked to the secondary radiation door, the drive assembly being connected to the door shaft via a pair of meshing helical gears; and a locking assembly located at the top and bottom ends of the main radiation door, the locking assembly comprising a plurality of arc-shaped clips that can be opened, the door frame having slots adapted to accommodate the arc-shaped clips, and the locking assembly being connected to the door shaft via a pulley assembly. The present invention provides a radiation shielding door with an adaptive sealing structure, wherein the secondary radiation door is retractably positioned at the opening and closing end of the main radiation door, thereby reducing the space occupied by the door body.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a radiation shielding door with an adaptive sealing structure. Background Art

[0002] At high doses, radiation can cause some harmful effects on humans and animals. For example, at 400 rad, 5% of those exposed die; at 650 rad, 100% die. Exposure to doses below 150 rad results in zero mortality, but the effects are not completely eliminated, and symptoms often take 20 years to manifest. Radiation can also damage genetic material, primarily by causing gene mutations and chromosomal aberrations, potentially harming one or even several generations. Since their discovery, radioactive materials have been widely used in various fields, including medicine, energy, and military. Comprehensive protection is essential during the transportation, production, and storage of radioactive materials. Not only must walls and doors be protected against radiation leakage, but so must they be.

[0003] Chinese patent CN213063388U discloses a radiation shielding door that is easy to open, which relates to a protective door and solves the technical problem that the existing radiation shielding door has a complex structure and is inconvenient to open. The utility model includes a door frame, an installation cavity is provided on the door frame, a door body is hinged in the installation cavity, an installation box is provided on one side of the door body, and two locking assemblies are symmetrically provided near the upper top surface and the lower bottom surface in the installation box. The locking assembly is driven by a driving assembly, and the driving assembly is limited by a limiting assembly. The utility model realizes locking through the cooperation of the locking bar and the locking groove of the locking assembly. The locking bar is driven by the driving assembly to move toward the middle together, so that the locking bar exits the locking groove to achieve the purpose of opening the shielding door. The utility model has a simple structure and is easy to operate. Because the door body is hinged in the installation frame, when the door body opens and closes, if the opening and closing end of the door body opens to the outside corridor, it will occupy the corridor space, and if the opening and closing end of the door body opens to the CT room, it will still occupy the space of the CT room. When some critically ill patients can only rely on the transport bed to enter the CT room, the transport bed itself occupies a large space, and in addition to the assistance of medical staff in the transport, a certain amount of space needs to be freed up to complete the transport of the patients. At this time, it is hoped that the door body can occupy a smaller space to facilitate the transport of the patients. Summary of the Invention

[0004] To achieve the above-mentioned object, the present invention discloses a radiation shielding door with an adaptive sealing structure, comprising a door frame and:

[0005] The door body includes a main radiation door and an auxiliary radiation door. The main radiation door is rotatably mounted in the door body through a door shaft, and the auxiliary radiation door is telescopically located at the opening and closing end of the main radiation door.

[0006] A drive assembly, the drive assembly is located in the main radiation door and is linked to the auxiliary radiation door, the drive assembly being connected to the door shaft via a pair of meshing helical gears;

[0007] The clamping assembly is located at the top and bottom of the main radiation door respectively. The clamping assembly includes a plurality of arc-shaped clamping plates that can be opened. The top and bottom of the door frame are respectively provided with clamping slots that adapt to the arc-shaped clamping plates. The clamping assembly is connected to the door shaft through a pulley assembly.

[0008] Preferably, the drive assembly includes:

[0009] Helical gear action chambers, wherein the two helical gear action chambers are located in the main radial door, the door shafts are rotatably connected to the top and bottom ends of the main radial door away from the engagement end, one end of the door shaft is fixedly installed in the door frame, and the other end of the door shaft extends into the helical gear action chamber, the helical gears are located in the helical gear action chamber, and one of the helical gears is installed on the door shaft;

[0010] a traverse chamber, the traverse chamber being located inside the main radiation door;

[0011] A transverse shaft, one end of which extends into the helical gear operating chamber, wherein another helical gear is mounted on the transverse shaft, and the other end of the transverse shaft extends into the transverse chamber;

[0012] The transverse movement assembly is located in the transverse movement chamber and is installed on the transverse movement shaft. The transverse movement assembly includes a spline sleeve. A receiving groove is provided at the opening and closing end of the main radiation door. The spline sleeve is mounted on the transverse movement shaft and extends into the receiving groove to be rotatably connected to the auxiliary radiation door.

[0013] Preferably, the transverse movement assembly further comprises:

[0014] Traverse box, the hollow worm is rotatably installed in the traverse box, and the hollow worm is sleeved on the spline sleeve;

[0015] Rotating worm wheels, two rotating worm wheels are installed in the transverse movement box through a rotating shaft with the transverse movement axis as the center, and the rotating worm wheels are engaged with the hollow worm;

[0016] A main rotating rod, one end of which is mounted on a rotating shaft, and a push rod is rotatably mounted on the other end of the main rotating rod. The push rod is away from the end of the main rotating rod and passes through a transverse box, and is rotatably mounted on the inner wall of the transverse chamber.

[0017] Preferably, the pulley assembly comprises:

[0018] A pulley transmission chamber, the pulley transmission chamber is located in the main radiation door, and the door shaft passes through the pulley transmission chamber;

[0019] A pair of meshing spur gears, the spur gears being located in the pulley transmission chamber, one of the spur gears being mounted on the door shaft, and the other spur gear being mounted on a second rotating shaft, which is rotatably mounted in the pulley transmission chamber;

[0020] The pulleys are connected by a transmission belt, one of which is located in the pulley transmission chamber and is installed on the second rotating shaft, and the other pulley is installed on the clamping assembly.

[0021] Preferably, the engaging assembly further comprises:

[0022] Installation slots, the installation slots are respectively opened at the top and bottom ends of the main radiation door, the slot ends of the installation slots are adapted to the bayonet settings, the installation slots are connected to the pulley transmission chamber through a connecting channel, and the transmission belt passes through the connecting channel;

[0023] A mounting seat, the mounting seat being fixedly mounted on the bottom of the mounting slot;

[0024] A central rotating shaft, wherein the central rotating shaft is rotatably mounted on the mounting seat, and the pulley is mounted on the central rotating shaft;

[0025] Guide rods, four guide rods are circumferentially mounted on the side ends of the mounting seat, the guide rods are curved and extend toward the inner wall of the mounting groove and the notch end of the mounting groove;

[0026] The slider is slidably connected to the guide rod, the arc-shaped clamping plate is installed on the slider, and the reversible telescopic component is connected between the slider and the central rotating shaft.

[0027] Preferably, the telescopic assembly includes:

[0028] An upper fixing seat, the upper fixing seat being installed at the top end of the central rotating shaft;

[0029] A fixing rod, the fixing rod is fixedly mounted on the side end of the upper fixing seat, and a transverse sliding groove is provided on the fixing rod;

[0030] A transverse sliding rod, one end of which is slidably connected to the transverse sliding groove, and the other end of which is rotatably connected to the slider.

[0031] Preferably, a limit slot is provided on the inner wall of the transverse slide slot, the limit slider is slidably connected in the limit slot, and the limit slider is fixedly connected to the transverse slide rod.

[0032] Preferably, it further comprises an electromagnet assembly, which is embedded in the top of the door frame, and a rigid block adapted to the electromagnet assembly is installed on the top of the main radiation door.

[0033] Preferably, the spline sleeve is installed with a semi-ellipsoidal block near the end of the auxiliary radiation door through a supporting connecting rod, and a connecting seat is installed on the auxiliary radiation door. The connecting seat is provided with a rotating slot adapted to the semi-ellipsoidal block, and two clamping plates are spliced into a ring and opened on the end of the supporting connecting rod near the semi-ellipsoidal block. The clamping plate is detachably installed on the end of the connecting seat near the rotating slot through a fixing screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 It is a structural schematic diagram of the present invention;

[0036] Figure 2 Schematic diagram of the door structure of the present invention Figure 1 (the auxiliary radiation door is in the retracted state);

[0037] Figure 3 It is a top view of the door body of the present invention;

[0038] Figure 4 for Figure 2 Enlarged view of the middle label A;

[0039] Figure 5 for Figure 2 Enlarged view of the middle label B;

[0040] Figure 6 Schematic diagram of the door structure of the present invention Figure 2 (the auxiliary radiation door is in the extended state);

[0041] Figure 7 This is a schematic diagram of the connection between the spline sleeve and the auxiliary radiation door of the present invention;

[0042] Figure 8 It is a three-dimensional diagram of the locking assembly of the present invention.

[0043] In the figure: 11. Door body; 12. Main radiation door; 13. Auxiliary radiation door; 14. Door shaft; 15. Drive assembly; 16. Bevel gear; 17. Clamping assembly; 18. Arc-shaped card plate; 19. Bayonet; 10. Door frame; 21. Bevel gear action chamber; 22. Transverse movement chamber; 23. Transverse movement shaft; 24. Transverse movement assembly; 25. Spline sleeve; 26. Transverse movement box; 27. Hollow worm; 28. Rotating worm gear; 29. Main rotating rod; 20. Push rod; 31. Pulley transmission chamber; 32. Spur gear; 33. Transmission belt; 34. Pulley; 35. Mounting groove; 36. Mounting seat; 37. Center rotating shaft; 38. Guide rod; 39. Slider; 30. Upper fixed seat; 41. Fixed rod; 42. Transverse movement slide; 43. Semi-ellipsoidal block; 44. Connecting seat; 45. Card plate. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0045] Example

[0046] The present invention will be further described below with reference to the accompanying drawings.

[0047] like Figures 1 to 8 As shown, the radiation shielding door with an adaptive sealing structure provided in this embodiment includes a door frame 10 and further includes:

[0048] The door body 11 includes a main radiation door 12 and an auxiliary radiation door 13. The main radiation door 12 is rotatably mounted in the door body 11 via a door shaft 14. The auxiliary radiation door 13 is retractable and located at the opening and closing end of the main radiation door 12.

[0049] A drive assembly 15, located in the main radiation door 12 and linked to the auxiliary radiation door 13, wherein the drive assembly 15 is connected to the door shaft 14 via a pair of meshing bevel gears 16;

[0050] The snap-fit assembly 17 is located at the top and bottom of the main radiation door 12 respectively. The snap-fit assembly 17 includes a plurality of arc-shaped clamping plates 18 that can be opened. The top and bottom of the door frame 10 are respectively provided with bayonet holes 19 that adapt to the arc-shaped clamping plates 18. The snap-fit assembly 17 is connected to the door shaft 14 through a pulley assembly.

[0051] The working principle and beneficial effects of the above technical solution are:

[0052] The present invention discloses a radiation shielding door with an adaptive sealing structure. When the shielding door needs to be opened, the door body 11 located in the door frame 10 is manually pushed, and the door body 11 rotates in the door frame 10 with the door shaft 14 as the center. At the same time, the locking component 17 releases the limit on the bayonet 19, and the driving component 15 drives the auxiliary radiation door 13 to be retracted into the main radiation door 12, thereby reducing the width of the door body 11 to reduce the space occupied by the door body 11. When the shielding door is closed, it is only necessary to manually push the door body 11 in the opposite direction, and the driving component 15 drives the auxiliary radiation door 13 to extend out of the main radiation door 12. When the door body 11 is completely retracted into the door frame 10, the arc-shaped clamping plate 18 of the locking component 17 extends into the bayonet 19. Because the arc-shaped clamping plate 18 performs an opening action, the arc-shaped clamping plate 18 fits on the inner wall of the bayonet 19, thereby completing the fixation of the door body 11 in the door frame 10. The present invention provides a radiation shielding door with an adaptive sealing structure. The auxiliary radiation door 13 can be retracted and located at the opening and closing end of the main radiation door 12, and the action of the auxiliary radiation door 13 can be executed when the door body 11 is opened and closed. When the door body 11 is opened, the auxiliary radiation door 13 is retracted into the opening and closing end of the main radiation door 12. When the door body 11 is closed, the auxiliary radiation door 13 is extended from the opening and closing end of the main radiation door 12. The main radiation door 12 and the auxiliary radiation door 13 have the same height, and the thickness of the auxiliary radiation door 13 is less than that of the main radiation door 12. Since the surfaces of the main radiation door 12 and the auxiliary radiation door 13 are both adhered with lead plates, their radiation resistance is not affected.

[0053] In one embodiment, the drive assembly 15 comprises:

[0054] Helical gear operating chambers 21, two of the helical gear operating chambers 21 are located in the main radiation door 12, and the door shafts 14 are rotatably connected to the top and bottom ends of the main radiation door 12 away from the engagement end. One end of the door shaft 14 is fixedly mounted in the door frame 10, and the other end of the door shaft 14 extends into the helical gear operating chambers 21. The helical gears 16 are located in the helical gear operating chambers 21, and one of the helical gears 16 is mounted on the door shaft 14;

[0055] A traverse chamber 22, wherein the traverse chamber 22 is located inside the main radiation door 12;

[0056] A traverse shaft 23, one end of which extends into the helical gear operating chamber 21, wherein another helical gear 16 is mounted on the traverse shaft 23, and the other end of the traverse shaft 23 extends into the traverse chamber 22;

[0057] The transverse movement assembly 24 is located in the transverse movement chamber 22 and is installed on the transverse movement shaft 23. The transverse movement assembly 24 includes a spline sleeve 25. A receiving groove is provided at the opening and closing end of the main radiation door 12. The spline sleeve 25 is sleeved on the transverse movement shaft 23 and extends into the receiving groove to be rotatably connected to the auxiliary radiation door 13.

[0058] The working principle and beneficial effects of the above technical solution are:

[0059] After the main radiation door 12 is manually pushed, the main radiation door 12 rotates in the door frame 10 with the door shaft 14 as the center, and the bevel gear 16 located in the bevel gear action chamber 21 and installed on the door shaft 14 does not move, so that the transverse shaft 23 connected to the other bevel gear 16 rotates, and the transverse shaft 23 drives the auxiliary radiation door 13 located in the storage slot to move through the transverse assembly 24 located in the transverse chamber 22. That is, when the main radiation door 12 is opened, after pushing the main radiation door 12, the auxiliary radiation door 13 is driven to be received in the storage slot at the opening and closing end of the main radiation door 12 through the cooperation of the spline sleeve 25 and the transverse shaft 23, and when the main radiation door 12 is closed in reverse, the spline sleeve 25 drives the auxiliary radiation door 13 to extend from the storage slot at the opening and closing end of the main radiation door 12.

[0060] In one embodiment, the traverse assembly 24 further comprises:

[0061] The traverse box 26 and the hollow worm 27 are rotatably mounted in the traverse box 26 , and the hollow worm 27 is sleeved on the spline sleeve 25 ;

[0062] Rotating worm gears 28, two rotating worm gears 28 are installed in the transverse movement box 26 through a rotating shaft with the transverse movement shaft 23 as the center, and the rotating worm gears 28 are engaged with the hollow worm 27;

[0063] The main rotating rod 29 has one end mounted on the rotating shaft 1, and the other end of the main rotating rod 29 is rotatably mounted with the push rod 20. The push rod 20 is away from the end of the main rotating rod 29 and passes through the transverse box 26, and is rotatably mounted on the inner wall of the transverse chamber 22.

[0064] The working principle and beneficial effects of the above technical solution are:

[0065] When the transverse shaft 23 rotates, it drives the spline sleeve 25 mounted thereon to rotate. Synchronously, the hollow worm 27 mounted on the spline sleeve 25 rotates synchronously in the transverse box 26. The hollow worm 27 drives the rotating worm wheel 28 meshing with it to rotate, thereby driving the main rotating rod 29 coaxially mounted on the rotating shaft 1 with the rotating worm wheel 28 to rotate. The main rotating rod 29 drives the top rod 20 connected to it for rotation to rotate. When the main rotating rod 29 and the top rod 20 are collinear and the length is the longest, the top rod 20 pushes the transverse box 26 to move in the transverse chamber 22 away from the helical gear action chamber 21. The transverse box 26 drives the hollow worm 27 installed therein and the hollow worm 27 located in the hollow worm The spline sleeve 25 in the rod 27 moves on the transverse shaft 23 in the direction away from the helical gear operating chamber 21, and the spline sleeve 25 pushes the auxiliary radiation door 13 out of the receiving groove located at the opening and closing end of the main radiation door 12. When the main rotating rod 29 and the push rod 20 are collinear and the length is the shortest, the push rod 20 pushes the transverse box 26 to move in the transverse chamber 22 toward the helical gear operating chamber 21. The transverse box 26 drives the hollow worm 27 installed therein and the spline sleeve 25 located in the hollow worm 27 to move on the transverse shaft 23 toward the helical gear operating chamber 21, and the spline sleeve 25 receives the auxiliary radiation door 13 into the receiving groove located at the opening and closing end of the main radiation door 12.

[0066] In one embodiment, the pulley assembly comprises:

[0067] The pulley transmission chamber 31 is located in the main radiation door 12, and the door shaft 14 passes through the pulley transmission chamber 31;

[0068] A pair of meshing spur gears 32, the spur gears 32 are located in the pulley transmission chamber 31, one of the spur gears 32 is mounted on the door shaft 14, and the other spur gear 32 is mounted on the second rotating shaft, which is rotatably mounted in the pulley transmission chamber 31;

[0069] The pulleys 34 are connected by the transmission belt 33 , one of the pulleys 34 is located in the pulley transmission chamber 31 and is mounted on the second rotating shaft, and the other pulley 34 is mounted on the engaging assembly 17 .

[0070] The working principle and beneficial effects of the above technical solution are:

[0071] After the main radiation door 12 is manually pushed, the main radiation door 12 rotates in the door frame 10 with the door shaft 14 as the center. The spur gear 32 located in the pulley transmission chamber 31 and installed on the door shaft 14 does not move, so that the second rotating shaft connected to the other spur gear 32 rotates. With the cooperation of the pulley 34 and the transmission belt 33, the locking assembly 17 moves, thereby causing the arc-shaped clamping plate 18 to perform an opening movement.

[0072] In one embodiment, the engaging assembly 17 further comprises:

[0073] Mounting slots 35 are respectively provided at the top and bottom ends of the main radiation door 12. The slot ends of the mounting slots 35 are adapted to be provided with the bayonet 19. The mounting slots 35 are connected to the pulley transmission chamber 31 through a connecting channel, and the transmission belt 33 passes through the connecting channel;

[0074] A mounting seat 36 , the mounting seat 36 being fixedly mounted on the bottom of the mounting groove 35 ;

[0075] A central rotating shaft 37 is rotatably mounted on the mounting base 36 , and the pulley 34 is mounted on the central rotating shaft 37 ;

[0076] Guide rods 38, four guide rods 38 are circumferentially mounted on the side ends of the mounting seat 36, the guide rods 38 are curved and extend toward the inner wall of the mounting groove 35 and the notch end of the mounting groove 35;

[0077] The slider 39 is slidably connected to the guide rod 38 , the arc-shaped clamping plate 18 is installed on the slider 39 , and the reversible telescopic component is connected between the slider 39 and the central shaft 37 .

[0078] The working principle and beneficial effects of the above technical solution are:

[0079] With the cooperation of the pulley 34 and the transmission belt 33, the central shaft 37 rotates on the mounting seat 36, and the central shaft 37 drives the slider 39 to slide on the curved guide rod 38 through the reversible telescopic component. Because the guide rod 38 extends toward the inner wall of the mounting groove 35 and the notch end of the mounting groove 35, when the slider 39 drives the arc-shaped clip 18 to slide along the guide rod 38, the arc-shaped clip 18 moves toward the inner wall of the mounting groove 35 and the notch end of the mounting groove 35, that is, when the arc-shaped clip 18 is performing an opening action, the arc-shaped clip 18 is lifted and extends from the notch end of the mounting groove 35, and the arc-shaped clip 18 extends into the notch 19 that matches the notch end of the mounting groove 35, and is finally clamped on the inner wall of the notch 19, thereby completing the fixation of the door body 11 in the door frame 10. Of course, this is the action when the door body 11 is closed. When the door body 11 is opened, the arc-shaped card plate 18 contracts and sinks, and the arc-shaped card plate 18 releases the limit on the inner wall of the bayonet 19.

[0080] It should be noted that when the door body 11 performs the closing action, the early opening and lifting actions of the arc-shaped clamping plate 18 are relatively slow. Only when the slot end of the installation groove 35 and the clamping mouth 19 partially overlap, the opening and lifting actions of the arc-shaped clamping plate 18 become faster. On the contrary, when the door body 11 performs the opening action, the early contraction and sinking actions of the arc-shaped clamping plate 18 are relatively fast, which will not cause movement interference.

[0081] In one embodiment, the telescopic assembly comprises:

[0082] An upper fixing seat 30, wherein the upper fixing seat 30 is mounted on the top of the central rotating shaft 37;

[0083] A fixing rod 41, which is fixedly mounted on the side end of the upper fixing seat 30, and has a transverse sliding groove;

[0084] The transverse sliding rod 42 has one end slidably connected to the transverse sliding groove, and the other end of the transverse sliding rod 42 is rotationally connected to the slider 39.

[0085] The working principle of the above technical solution is:

[0086] When the door body 11 performs a closing action, the slider 39 drives the transverse slide rod 42 to move in the transverse slide groove away from the upper fixed seat 30. Conversely, when the door body 11 performs an opening action, the slider 39 drives the transverse slide rod 42 to move in the transverse slide groove toward the upper fixed seat 30.

[0087] In one embodiment, a limit slot is provided on the inner wall of the transverse slot, a limit slider is slidably connected in the limit slot, and the limit slider is fixedly connected to the transverse slide rod 42 .

[0088] The beneficial effects of the above technical solution are:

[0089] By arranging the limiting chute and the limiting sliding block, the traverse sliding rod 42 does not separate from the fixed rod 41 when the traverse sliding rod 42 moves in the traverse sliding groove.

[0090] In one embodiment, an electromagnet assembly is further included. The electromagnet assembly is embedded in the top of the door frame 10 , and a rigid block adapted to the electromagnet assembly is installed on the top of the main radiation door 12 .

[0091] The working principle and beneficial effects of the above technical solution are:

[0092] By setting up the electromagnet assembly and the rigid block, the stability of the connection between the door body 11 and the door frame 10 is improved. The identity recognition module (such as fingerprint recognition, facial recognition, password recognition or IC card recognition, etc.) obtains the identity information of the applicant. When the information matches, the electromagnet assembly releases the adsorption of the rigid block, so that the door body 11 can be opened manually.

[0093] In one embodiment, the spline sleeve 25 is installed with a semi-ellipsoidal block 43 through a supporting connecting rod near the end of the auxiliary radiation door 13, and a connecting seat 44 is installed on the auxiliary radiation door 13. The connecting seat 44 is provided with a rotating slot adapted to the semi-ellipsoidal block 43. Two clamping plates 45 are spliced into a ring and opened at the end of the supporting connecting rod near the semi-ellipsoidal block 43. The clamping plate 45 is detachably installed on the connecting seat 44 near the rotating slot end through a fixing screw.

[0094] The working principle and beneficial effects of the above technical solution are:

[0095] When the spline sleeve 25 drives the auxiliary radiation door 13 to move, since the spline sleeve 25 rotates, it drives the semi-ellipsoidal block 43 connected to the spline sleeve 25 through the supporting connecting rod to rotate in the rotating slot, thereby preventing motion interference.

[0096] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A radiation shielding door with an adaptive sealing structure, comprising a door frame (10), characterized in that: Also includes: A door body (11), wherein the door body (11) includes a main radiation door (12) and a secondary radiation door (13), wherein the main radiation door (12) is rotatably installed in the door body (11) via a door shaft (14), and the secondary radiation door (13) is telescopically located at the opening and closing end of the main radiation door (12), a driving assembly (15) is located in the main radiation door (12) and is linked to the secondary radiation door (13), the driving assembly (15) is connected to the door shaft (14) via a pair of meshing bevel gears (16), a clamping assembly (17) is respectively located at the top and bottom of the main radiation door (12), the clamping assembly (17) includes a plurality of arc-shaped clamping plates (18) that can be opened, and a clamping port (19) adapted to the arc-shaped clamping plates (18) is respectively provided at the top and bottom of the door frame (10), and the clamping assembly (17) is connected to the door shaft (14) via a pulley assembly; The driving assembly (15) comprises: a helical gear action chamber (21), two helical gear action chambers (21) are located in the main radial door (12), a door shaft (14) is respectively rotatably connected to the top and bottom ends of the main radial door (12) away from the engagement end, one end of the door shaft (14) is fixedly installed in the door frame (10), and the other end of the door shaft (14) extends into the helical gear action chamber (21), a helical gear (16) is located in the helical gear action chamber (21), one of the helical gears (16) is installed on the door shaft (14), and a transverse movement chamber (22) is located in the main radial door (12). In the shooting door (12), one end of the transverse shaft (23) extends into the helical gear action chamber (21), wherein another helical gear (16) is installed on the transverse shaft (23), and the other end of the transverse shaft (23) extends into the transverse chamber (22). The transverse assembly (24) is located in the transverse chamber (22) and is installed on the transverse shaft (23). The transverse assembly (24) includes a spline sleeve (25). The opening and closing end of the main radiation door (12) is provided with a receiving groove. The spline sleeve (25) is sleeved on the transverse shaft (23) and extends into the receiving groove to be rotatably connected with the auxiliary radiation door (13); The transverse shift assembly (24) further includes: a transverse shift box (26), a hollow worm (27) rotatably mounted in the transverse shift box (26), the hollow worm (27) being sleeved on a spline sleeve (25), two rotating worm wheels (28) being rotatably mounted in the transverse shift box (26) through a rotating shaft (1) with the transverse shift shaft (23) as the center, the rotating worm wheels (28) being engaged with the hollow worm (27), one end of a main rotating rod (29) being mounted on a rotating shaft (1), and a push rod (20) being rotatably mounted on the other end of the main rotating rod (29), the push rod (20) being away from the end of the main rotating rod (29) passing through the transverse shift box (26) and being rotatably mounted on the inner wall of the transverse shift chamber (22).

2. The radiation shielding door with an adaptive sealing structure according to claim 1, characterized in that: The pulley assembly comprises: a pulley transmission chamber (31), the pulley transmission chamber (31) is located in the main radiation door (12), the door shaft (14) is provided with the pulley transmission chamber (31), a pair of meshing spur gears (32) are located in the pulley transmission chamber (31), one of the spur gears (32) is installed on the door shaft (14), the other spur gear (32) is installed on the second rotating shaft, the second rotating shaft is rotatably installed in the pulley transmission chamber (31), a pulley (34) connected by a transmission belt (33), one of the pulleys (34) is located in the pulley transmission chamber (31) and is installed on the second rotating shaft, and the other pulley (34) is installed on the engaging assembly (17).

3. The radiation shielding door with an adaptive sealing structure according to claim 2, characterized in that: The engaging assembly (17) further comprises: mounting grooves (35) respectively provided at the top and bottom ends of the main radiation door (12); the notch end of the mounting groove (35) is adapted to be provided with a bayonet (19); the mounting groove (35) is communicated with the pulley transmission chamber (31) through a connecting channel; the transmission belt (33) passes through the connecting channel; the mounting seat (36) is fixedly mounted on the bottom inner portion of the mounting groove (35); the central rotating shaft (37) is rotatably mounted on the mounting seat (36); the pulley (34) is mounted on the central rotating shaft (37); four guide rods (38) are circumferentially mounted on the side ends of the mounting seat (36); the guide rods (38) are curved and extend toward the inner wall of the mounting groove (35) and the notch end of the mounting groove (35); a slider (39) is slidably connected to the guide rods (38); the arc-shaped card plate (18) is mounted on the slider (39); and a reversible telescopic assembly is connected between the slider (39) and the central rotating shaft (37).

4. The radiation shielding door with an adaptive sealing structure according to claim 3, characterized in that: The telescopic assembly includes: an upper fixed seat (30) installed on the top of the central rotating shaft (37), a fixed rod (41) fixedly installed on the side end of the upper fixed seat (30), a transverse sliding groove is provided on the fixed rod (41), one end of the transverse sliding rod (42) is slidably connected to the transverse sliding groove, and the other end of the transverse sliding rod (42) is rotatably connected to the slider (39).

5. The radiation shielding door with an adaptive sealing structure according to claim 4, characterized in that: A limit slot is provided on the inner wall of the transverse slide slot, a limit slider is slidably connected in the limit slot, and the limit slider is fixedly connected to the transverse slide rod (42).

6. The radiation shielding door with an adaptive sealing structure according to claim 1, characterized in that: It also includes an electromagnet assembly, which is embedded and installed in the top of the door frame (10), and a rigid block adapted to the electromagnet assembly is installed on the top of the main radiation door (12).

7. The radiation shielding door with an adaptive sealing structure according to claim 1, characterized in that: The spline sleeve (25) is provided with a semi-ellipsoidal block (43) at the end near the auxiliary radiation door (13) through a supporting connecting rod. A connecting seat (44) is provided on the auxiliary radiation door (13). A rotating slot adapted to the semi-ellipsoidal block (43) is provided on the connecting seat (44). Two clamping plates (45) are spliced into a ring and provided at the end of the supporting connecting rod near the semi-ellipsoidal block (43). The clamping plates (45) are detachably installed on the end of the connecting seat (44) near the rotating slot through a fixing screw.

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