A medical polymer radiation shielding fire door

Abstract

The present invention belongs to the technical field of fire doors, and in particular to a medical polymer radiation shielding fire door. The medical fire doors in the prior art are difficult to be tightly clamped with door openings, and have poor radiation isolation capabilities. In view of these shortcomings, a sealing structure and a door sealing structure are provided. The sealing structure includes a fixed door frame, which is used to be installed at the door opening, an installing door frame, and the installing door frame is fixedly installed in the fixed door frame. Moving holes are provided on the inner walls on both sides of the installing door frame, and a lining mechanism is installed in the fixed door frame. The top of the lining mechanism passes through two moving holes respectively and extends into the installing door frame. The present invention can achieve tight clamping of the door panel mechanism, so that in actual use, it can effectively isolate X-rays, and two layers of metal shielding mesh are arranged in the door panel mechanism to enhance the protection capability of the door panel mechanism, so that in actual use, the safety performance can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof doors, in particular to a medical polymer radiation shielding fireproof door. Background Art

[0002] In medical rooms, professional X-ray shielding doors are installed to prevent X-rays from harming the health of medical staff and patients. This type of door can effectively isolate most X-rays, thereby preventing X-rays from harming the human body. X-ray shielding fire doors are widely used in radiology departments, CT rooms, radiation source rooms, and other places in hospitals that need to prevent radiation leakage.

[0003] At present, the doors commonly used in the radiation source room are mostly sliding door panels. When closing the radiation source room, this type of door is difficult to achieve a fully sealed effect, so it is easy to cause X-ray leakage in actual use; in addition, these door panels are mostly single fire doors, which are difficult to achieve full isolation when isolating X-rays, so there are certain safety hazards in actual use;

[0004] In view of the above problems, the present invention document proposes a medical polymer radiation shielding fire door. Summary of the invention

[0005] The invention provides a medical polymer radiation shielding fire door, which solves the disadvantages of the medical fire door used in the prior art that it is difficult to clamp tightly with the door opening and the fire door has poor ability to isolate radiation.

[0006] The present invention provides the following technical solutions:

[0007] A medical polymer radiation shielding fireproof door, comprising a sealing structure and a door sealing structure, wherein the sealing structure comprises:

[0008] Fixed door cover, which is used to be installed at the door opening;

[0009] Install the door cover, the door cover is fixed in the fixed door cover, and moving holes are opened on the inner walls on both sides of the door cover;

[0010] The lining mechanism is installed in the fixed door pocket, and the top of the lining mechanism passes through the two movable holes and extends into the installation door pocket;

[0011] The door sealing structure comprises:

[0012] A guide rail mechanism, which is used to be installed on the outer facade of the radiation source room;

[0013] A driving mechanism, the driving mechanism is installed in the guide rail mechanism;

[0014] The door panel mechanism is installed in the guide rail mechanism, and the door panel mechanism cooperates with the lining mechanism.

[0015] In one possible design, the lining mechanism includes a power box fixedly installed on the bottom of the mounting door frame, two adjustment holes are symmetrically opened on the top inner wall of the power box, a transmission plate is slidably connected in the power box, a driving hole is opened on the transmission plate, a power assembly is installed in the power box, the power assembly cooperates with the driving hole for transmission, two transmission rods are symmetrically fixedly installed on the top of the transmission plate, the top ends of the two transmission rods extend into the mounting door frame and are fixedly installed with connecting plates, the sides of the two connecting plates close to each other respectively pass through corresponding moving holes and extend into the mounting door frame, the sides of the two connecting plates close to each other are fixedly connected with the same rectangular isolation frame, the rectangular isolation frame fits the inner wall of the mounting door frame, and the rectangular isolation frame cooperates with the door panel mechanism.

[0016] In one possible design, the power assembly includes an adjusting motor fixedly mounted on an inner wall of one side of a power box, a connecting member is mounted on the output shaft of the adjusting motor, the connecting member is mounted on the bottom inner wall of the power box, a transmission disk is mounted on the top of the connecting member, a stop shaft is fixedly mounted at an eccentric position on the top of the transmission disk, and the top end of the stop shaft extends into the drive hole and cooperates with the inner wall of the drive hole for transmission.

[0017] In a possible design, the connecting member includes a driving screw fixedly mounted on the output shaft of the adjusting motor, one end of the driving screw is slidably connected to the top inner wall of the power box, a rack is slidably connected to the bottom inner wall of the power box, a driving thread plate is fixedly mounted on the top side of the rack, the driving screw penetrates the driving thread plate and is threadedly connected to the driving thread plate, a gear is fixedly mounted on the bottom of the transmission disk, and the rack is meshed with the gear.

[0018] In a possible design, the guide rail mechanism includes an upper guide rail and a lower guide rail, and a slide is fixedly installed on the side where the upper guide rail and the lower guide rail are close to each other, and the door panel mechanism is respectively connected to the two slides, and the same first side strip is fixedly installed on the same end of the upper guide rail and the lower guide rail, and the same second side strip is fixedly installed on the other end of the upper guide rail and the lower guide rail, and two connecting foot plates are symmetrically fixedly installed on the side where the first side strip and the second side strip are away from each other, and the driving mechanism is respectively connected to the first side strip and the second side strip.

[0019] In a possible design, the driving mechanism includes a stroke motor fixedly mounted on the top of one side of the first side strip, a first screw is fixedly mounted on the output shaft of the stroke motor, one end of the first screw is rotatably connected to one side of the second side strip, a first threaded plate is threadedly sleeved on the first screw, and the first threaded plate is connected to the top of the door panel mechanism;

[0020] The bottom of the side where the first side strip and the second side strip are close to each other is rotatably connected with the same second screw rod, the second screw rod is threadedly connected with a second threaded plate, the second threaded plate is connected to the door panel mechanism, and the second screw rod and the first screw rod are connected with the same transmission assembly.

[0021] In a possible design, the transmission assembly includes two synchronous wheels which are respectively fixedly sleeved on the first screw rod and the second screw rod, and the same synchronous belt is transmission sleeved on the two synchronous wheels.

[0022] In a possible design, two L-shaped clamping plates are axially symmetrically fixedly installed on one side of the synchronous belt, and two U-shaped clamping plates are axially symmetrically installed on one side of the door panel mechanism, and the L-shaped clamping plates are clamped with the corresponding U-shaped clamping plates.

[0023] In a possible design, the door panel mechanism includes two door shells, and the two door shells are made of metal material. The two door shells are fixedly connected to form a closed chamber, and a shielding assembly is installed in the chamber. The top of the two door shells is equipped with the same upper guide wheel, and the number of the upper guide wheels is two. The bottom of the two door shells is equipped with the same lower guide wheel, and the number of the lower guide wheels is two. The upper guide wheel and the lower guide wheel are respectively rollingly matched with the corresponding slideways. The door shell close to the side where the door frame is installed is fixedly installed with a rectangular positioning frame, and the rectangular positioning frame is clamped with the rectangular isolation frame. The first threaded plate and the second threaded plate are respectively fixedly installed on the top and bottom of the door shell.

[0024] In a possible design, the shielding assembly includes an isolation plate, which is disposed in a chamber formed by two door shells. The isolation plate is made of a fireproof material, and metal shielding nets are fixedly installed on both sides of the isolation plate.

[0025] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

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

[0027] In the present invention, by setting up the lining mechanism, when the door panel mechanism moves to the position for blocking the door frame installation, the power assembly can be started to drive the transmission plate and the two transmission rods to move, and then the rectangular isolation frame is moved through the connecting plate transmission to the position where it is clamped with the door panel mechanism, so as to achieve the sealing of the door opening of the radiation source room in cooperation with the door panel mechanism.

[0028] In the present invention, by setting up a guide rail mechanism, after the guide rail mechanism is installed on the outer wall of the radiation source room using four connecting feet, the driving mechanism and the door panel mechanism can be conveniently supported, so that the door panel mechanism can move horizontally and linearly under the drive of the driving mechanism, thereby facilitating the opening or closing of the door panel of the radiation source room.

[0029] In the present invention, the travel motor can be started to drive the first screw to rotate through the driving mechanism, and the second screw rotates accordingly under the action of the transmission assembly. When the first screw and the second screw rotate, they are respectively threaded with the first threaded plate and the second threaded plate, driving the door plate mechanism to move, so as to facilitate the opening or closing of the radiation source room.

[0030] In the present invention, the door panel mechanism is provided, and after receiving the driving force of the first threaded plate and the second threaded plate, the door panel mechanism can move laterally, and the upper guide wheel and the lower guide wheel provided provide lateral rolling support for the door panel mechanism, thereby reducing the movement resistance. When the door panel mechanism moves to the position of blocking the door opening of the radiation source room, the rectangular isolation frame moves to the outside of the installation door cover and is clamped with the rectangular positioning frame, thereby clamping and positioning the door panel mechanism, avoiding a gap between the door panel mechanism and the door opening of the radiation source room, so that the X-rays can be well isolated.

[0031] When the present invention is actually used, the door panel mechanism can be tightly clamped, thereby effectively isolating X-rays, and the two layers of metal shielding nets arranged in the door panel mechanism can enhance the protection capability, thereby effectively improving the safety performance when actually used. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional schematic diagram of the first-view structure of a medical polymer radiation shielding fire door provided in an embodiment of the present invention;

[0033] Figure 2 A three-dimensional schematic diagram of the structure of a medical polymer radiation shielding fire door provided by an embodiment of the present invention from a second viewing angle;

[0034] Figure 3 A three-dimensional schematic diagram of the connection structure of the fixed door frame, the installed door frame and the power box of the medical polymer radiation shielding fire door provided in an embodiment of the present invention;

[0035] Figure 4 A three-dimensional schematic diagram of the connection structure of a rectangular isolation frame, two transmission rods and a power box of a medical polymer radiation shielding fireproof door provided in an embodiment of the present invention;

[0036] Figure 5 A three-dimensional schematic diagram of the connection structure of the regulating motor, the transmission disc and the rectangular isolation frame of the medical polymer radiation shielding fire door provided in an embodiment of the present invention;

[0037] Figure 6 A three-dimensional schematic diagram of the connection structure of the regulating motor and two transmission rods of the medical polymer radiation shielding fireproof door provided by an embodiment of the present invention;

[0038] Figure 7A three-dimensional schematic diagram of the connection structure of the travel motor, the first screw, the second screw and the door panel of the medical polymer radiation shielding fireproof door provided in an embodiment of the present invention;

[0039] Figure 8 A three-dimensional schematic diagram from another perspective of the travel motor, the first screw, the second screw and the door panel connection structure of the medical polymer radiation shielding fireproof door provided by an embodiment of the present invention;

[0040] Fig. 9 A three-dimensional schematic diagram of the decomposed structure of the door panel of the medical polymer radiation shielding fire door provided in an embodiment of the present invention.

[0041] Reference numerals:

[0042] 1. Fix the door frame; 2. Install the door frame; 3. Move the hole; 4. Connecting plate; 5. Rectangular isolation frame; 6. Power box; 7. Transmission rod; 8. Adjustment hole; 9. Transmission plate; 10. Adjustment motor; 11. Drive screw; 12. Rack; 13. Transmission plate; 14. Gear; 15. Block shaft; 16. Drive hole; 17. Drive threaded plate; 18. Upper guide rail; 181. Lower guide rail; 19. First side strip; 20. Second side strip; 21. Connect the foot plate; 22. Door shell; 23. Isolation plate; 24. Metal shielding net; 25. Rectangular positioning frame; 26. Travel motor; 27. First screw; 28. First threaded plate; 29. ​​Second screw; 30. Second threaded plate; 31. Lower guide wheel; 32. Upper guide wheel; 33. Synchronous wheel; 34. Synchronous belt; 35. L-shaped pallet; 36. U-shaped pallet; 37. Slideway. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. Example 1

[0045] Reference Figure 1-Figure 9The medical polymer radiation shielding fireproof door of this embodiment includes a sealing structure and a door sealing structure. The sealing structure specifically consists of the following parts:

[0046] First, the fixed door cover 1 is designed to be installed at the door opening, and it serves as the basic support structure of the entire door body. Then, the installation door cover 2 is fixedly installed inside the fixed door cover 1, and moving holes 3 are opened on the inner walls on both sides of the installation door cover 2, which provide space for the subsequent movement of the lining mechanism.

[0047] The lining mechanism is installed inside the fixed door frame 1. It is mainly composed of a power box 6, a transmission rod 7, a connecting plate 4 and a rectangular isolation frame 5. The power box 6 is fixedly installed at the bottom of the door frame 2, and two adjustment holes 8 are symmetrically opened on the top inner wall. In the power box 6, a transmission plate 9 is slidably connected, and a driving hole 16 is opened on the transmission plate 9. In order to drive the transmission plate 9 to move, a power assembly is also installed in the power box 6. The power assembly includes an adjustment motor 10, a driving screw 11, a rack 12, a transmission plate 13, a stop shaft 15 and other components. The adjustment motor 10 is fixedly installed on one side of the inner wall of the power box 6, and a driving screw 11 is installed on its output shaft. One end of the driving screw 11 is slidably connected to the top inner wall of the power box 6. A rack 12 is slidably connected to the bottom inner wall of the power box 6, and a driving threaded plate 17 is fixedly installed on the top side of the rack 12. The driving screw 11 passes through the driving threaded plate 17 and is threadedly connected to the driving threaded plate 17. A gear 14 is fixedly installed at the bottom of the transmission disc 13, and the rack 12 is meshed with the gear 14. A stopper shaft 15 is fixedly installed at an eccentric position on the top of the transmission disc 13, and the top of the stopper shaft 15 extends into the driving hole 16 and cooperates with the inner wall of the driving hole 16. When the adjustment motor 10 is started, it will drive the driving screw 11 to rotate, and then drive the rack 12 to move horizontally under the threaded transmission action with the driving threaded plate 17. The movement of the rack 12 will drive the transmission disc 13 to rotate under the meshing transmission action with the gear 14, so that the stopper shaft 15 moves in an arc in the driving hole 16, and then drive the transmission plate 9 to move horizontally. Two transmission rods 7 are symmetrically fixedly installed on the top of the transmission plate 9, and the tops of the two transmission rods 7 extend into the installation door frame 2 and are fixedly installed with a connecting plate 4. The two connecting plates 4 are close to each other. The side that passes through the corresponding moving hole 3 and extends into the installation door frame 2, and the side that the two connecting plates 4 are close to each other is fixedly connected to the same rectangular isolation frame 5. The rectangular isolation frame 5 is fitted with the inner wall of the door frame 2 and is used to cooperate with the door panel mechanism for sealing.

[0048] The door sealing structure is mainly composed of a guide rail mechanism, a driving mechanism and a door panel mechanism. The guide rail mechanism is used to be installed on the outer facade of the radiation source room, and it includes an upper guide rail 18 and a lower guide rail 181. The upper guide rail 18 and the lower guide rail 181 are fixedly installed with a slide 37 on the side close to each other, and the door panel mechanism is connected to the two slides 37 respectively. The same first side bar 19 is fixedly installed on the same end of the upper guide rail 18 and the lower guide rail 181, and the same second side bar 20 is fixedly installed on the other end of the upper guide rail 18 and the lower guide rail 181. Four connecting foot plates 21 are symmetrically fixedly installed on the side away from the first side bar 19 and the second side bar 20, which are used to install the guide rail mechanism on the outer wall of the radiation source room. The driving mechanism is connected to the first side bar 19 and the second side bar 20 respectively, and is used to drive the door panel mechanism to move horizontally and linearly in the guide rail mechanism to realize the opening or closing of the door panel of the radiation source room.

[0049] When in use, when the door panel mechanism moves to a position to block the door cover 2, the adjustment motor 10 in the power assembly can be started to drive the transmission plate 9 to move through a series of transmission actions. The movement of the transmission plate 9 will drive the two transmission rods 7 to move, and then drive the rectangular isolation frame 5 to move through the transmission action of the two connecting plates 4. At this time, the rectangular isolation frame 5 will be moved to a position where it is clamped with the door panel mechanism, so that the door opening of the radiation source room can be sealed in cooperation with the door panel mechanism.

[0050] Next, the driving mechanism and the door panel mechanism are described. The driving mechanism is fixedly installed between the first side bar 19 and the second side bar 20, and is used to drive the door panel mechanism to move. The door panel mechanism is used to block the door opening of the radiation source room to achieve the functions of fire prevention and radiation shielding.

[0051] The specific structure of the driving mechanism is as follows: a stroke motor 26 is fixedly mounted on the top of one side of the first side bar 19. A first screw rod 27 is fixedly mounted on the output shaft of the stroke motor 26. One end of the first screw rod 27 is rotatably connected to one side of the second side bar 20, forming a stable transmission structure. A first threaded plate 28 is threadedly sleeved on the first screw rod 27. The first threaded plate 28 is connected to the top of the door panel mechanism to transmit the driving force.

[0052] At the same time, at the bottom of the side where the first side strip 19 and the second side strip 20 are close to each other, a second screw rod 29 is rotatably connected. On the second screw rod 29, a second threaded plate 30 is threadedly connected. This second threaded plate 30 is also connected to the door panel mechanism to provide additional driving force. In order to achieve the synchronous rotation of the first screw rod 27 and the second screw rod 29, a transmission assembly is also provided. This transmission assembly includes two synchronous wheels 33 fixedly mounted on the first screw rod 27 and the second screw rod 29, respectively, and the same synchronous belt 34 transmission-mounted on the two synchronous wheels 33. When the travel motor 26 is started, it will drive the first screw rod 27 to rotate. At this time, under the transmission cooperation of the two synchronous wheels 33 and the synchronous belt 34, the second screw rod 29 will also rotate synchronously.

[0053] The specific structure of the door panel mechanism is as follows: it includes two door shells 22 made of metal material, which are fixedly connected together to form a closed chamber. A shielding assembly is installed in this chamber. The shielding assembly includes an isolation plate 23 made of fireproof material, and two metal shielding nets 24 fixedly installed on both sides of the isolation plate 23. The two metal shielding nets 24 can isolate the radiation generated by the radiation source room and improve the safety of the door panel mechanism.

[0054] An upper guide wheel 32 is installed on the top of the two door shells 22, and the number is two. A lower guide wheel 31 is installed on the bottom of the two door shells 22, and the number is also two. These upper guide wheels 32 and lower guide wheels 31 are respectively rollingly matched with the corresponding slideways 37 to provide stable support for the movement of the door panel mechanism. A rectangular positioning frame 25 is also fixedly installed on the door shell 22 near the side where the door cover 2 is installed. This rectangular positioning frame 25 is clamped with the rectangular isolation frame 5 to brake and limit the door panel mechanism.

[0055] The first threaded plate 28 and the second threaded plate 30 are fixedly mounted on the top and bottom of the door shell 22, respectively. When the door panel mechanism receives the driving force of the first threaded plate 28 and the second threaded plate 30, it will move laterally. At this time, the two upper guide wheels 32 and the lower guide wheel 31 will provide lateral rolling support to reduce the resistance during movement. When the door panel mechanism moves to block the door opening of the radiation source room, the rectangular isolation frame 5 will move to the outside of the door frame 2 and be clamped with the rectangular positioning frame 25. In this way, the door panel mechanism can be clamped and positioned to avoid a gap between the door panel mechanism and the door opening of the radiation source room, thereby effectively isolating the X-rays.

[0056] In summary, the medical polymer radiation shielding fire door achieves effective blocking and fireproof isolation of the door opening of the radiation source room through the ingenious design of the driving mechanism and the door panel mechanism. At the same time, by setting the shielding component and the card-fitting cooperation of the L-shaped card plate 35 and the U-shaped card plate 36, the safety and stability of the door panel mechanism are further improved. The fire door has the advantages of simple structure, convenient operation, good fireproof effect, and excellent radiation shielding performance, and is suitable for various medical places that require fire protection and radiation shielding. Example 2

[0057] Reference Figure 2 This embodiment is based on the first embodiment. Regarding the medical polymer radiation shielding fire door proposed in the first embodiment, in order to further improve the stability of the door panel mechanism, two L-shaped card plates 35 are also axially symmetrically fixedly installed on one side of the synchronous belt 34. At the same time, two U-shaped card plates 36 are axially symmetrically installed on one side of the door panel mechanism. When the synchronous belt 34 moves, it will drive the two L-shaped card plates 35 to move toward each other. Therefore, when the door panel mechanism moves to block the door opening of the radiation source room, the L-shaped card plate 35 can be clamped and matched with the corresponding U-shaped card plate 36. In this way, additional braking and limiting of the door panel mechanism can be achieved to ensure the stability of the door panel mechanism.

[0058] Working principle: When closing the door opening of the radiation source room, the stroke motor 26 can be started to drive the first screw 27 to rotate, and under the transmission cooperation of the two synchronous wheels 33 and the synchronous belt 34, the second screw 29 can be driven to rotate synchronously. When the first screw 27 and the second screw 29 are both rotating, they can respectively drive the door panel mechanism to move under the thread transmission action of the first threaded plate 28 and the second threaded plate 30, so that the door panel mechanism moves to the position to block the door opening of the radiation source room, and When the synchronous belt 34 moves, the two L-shaped card plates 35 can be driven to move toward each other. Therefore, when the door panel mechanism moves to block the door opening of the radiation source room, the L-shaped card plate 35 can be engaged with the corresponding U-shaped card plate 36, so as to achieve the braking and limiting of the door panel mechanism. Then, the adjusting motor 10 can be started to drive the driving screw 11 to rotate. When the driving screw 11 rotates, it can drive the rack 12 to move horizontally under the threaded transmission action of the driving thread plate 17. When the rack 12 moves When the transmission plate 9 moves, the transmission plate 9 can be driven to move laterally under the transmission action of the meshing transmission with the gear 14. When the transmission plate 13 rotates, the blocking shaft 15 can be driven to move in an arc shape, that is, under the transmission cooperation with the long strip driving hole 16, the transmission plate 9 can be driven to move horizontally. When the transmission plate 9 moves, the two transmission rods 7 can be driven to move, thereby the rectangular isolation frame 5 can be driven to move under the transmission action of the two connecting plates 4. At this time, the rectangular isolation frame 5 can be moved to a position where it is clamped with the rectangular positioning frame 25, so that the door opening of the radiation source room can be sealed under the cooperation with the door panel mechanism, thereby avoiding the occurrence of gaps between the door panel mechanism and the door opening of the radiation source room, and avoiding the leakage of X-rays. In addition, a fire-proof isolation plate 23 is installed in the two door shells 22, which can improve the fire-proof performance of the door panel mechanism. At the same time, the two metal shielding nets 24 can isolate the rays generated by the radiation source room, thereby effectively improving safety during actual use.

[0059] However, as is well known to those skilled in the art, the working principles and wiring methods of the adjustment motor 10 and the travel motor 26 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0060] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A medical polymer radiation shielding fire door, comprising a sealing structure and a door sealing structure, characterized in that: The sealing structure comprises: A fixed door cover (1), the fixed door cover (1) is used to be installed at a door opening; Installing the door cover (2), wherein the installed door cover (2) is fixedly installed in the fixed door cover (1), and movable holes (3) are provided on the inner walls on both sides of the installed door cover (2); A lining mechanism, the lining mechanism is installed in the fixed door frame (1), and the top of the lining mechanism passes through the two movable holes (3) respectively and extends into the installation door frame (2); The door sealing structure comprises: A guide rail mechanism, which is used to be installed on the outer facade of the radiation source room; A driving mechanism, the driving mechanism is installed in the guide rail mechanism; Door panel mechanism, the door panel mechanism is installed in the guide rail mechanism, and the door panel mechanism cooperates with the lining mechanism; The lining mechanism comprises a power box (6) fixedly mounted on the bottom of the mounting door frame (2), two adjustment holes (8) are symmetrically provided on the top inner wall of the power box (6), a transmission plate (9) is slidably connected in the power box (6), a driving hole (16) is provided in the transmission plate (9), a power assembly is installed in the power box (6), the power assembly and the driving hole (16) are transmission-coordinated, two transmission rods (7) are symmetrically fixedly mounted on the top of the transmission plate (9), the top ends of the two transmission rods (7) both extend into the mounting door frame (2) and both are fixedly provided with a connecting plate (4), the two connecting plates (4) on the sides close to each other respectively penetrate the corresponding moving holes (3) and both extend into the mounting door frame (2), the two connecting plates (4) on the sides close to each other are fixedly provided with a same rectangular isolation frame (5), the rectangular isolation frame (5) is in contact with the inner wall of the mounting door frame (2), and the rectangular isolation frame (5) cooperates with the door panel mechanism; The guide rail mechanism comprises an upper guide rail (18) and a lower guide rail (181); a slideway (37) is fixedly installed on the side where the upper guide rail (18) and the lower guide rail (181) are close to each other; the door panel mechanism is respectively connected to the two slideways (37); a first side strip (19) is fixedly installed on the same end of the upper guide rail (18) and the lower guide rail (181); a second side strip (20) is fixedly installed on the other end where the upper guide rail (18) and the lower guide rail (181) are common; two connecting foot plates (21) are symmetrically fixedly installed on the side where the first side strip (19) and the second side strip (20) are far away from each other; and the driving mechanism is respectively connected to the first side strip (19) and the second side strip (20); The driving mechanism comprises a travel motor (26) fixedly mounted on the top of one side of the first side strip (19); a first screw rod (27) is fixedly mounted on the output shaft of the travel motor (26); one end of the first screw rod (27) is rotatably connected to one side of the second side strip (20); a first threaded plate (28) is threadedly sleeved on the first screw rod (27); and the first threaded plate (28) is connected to the top of the door panel mechanism; A second screw rod (29) is rotatably connected to the bottom of a side where the first side strip (19) and the second side strip (20) are close to each other, a second threaded plate (30) is threadedly connected to the second screw rod (29), the second threaded plate (30) is connected to the door panel mechanism, and a transmission assembly is connected to the second screw rod (29) and the first screw rod (27); The transmission assembly comprises two synchronous wheels (33) respectively fixedly sleeved on the first screw rod (27) and the second screw rod (29), and the same synchronous belt (34) is transmission sleeved on the two synchronous wheels (33); Two L-shaped card plates (35) are axially symmetrically fixedly mounted on one side of the synchronous belt (34), and two U-shaped card plates (36) are axially symmetrically mounted on one side of the door panel mechanism, and the L-shaped card plates (35) are clamped with corresponding U-shaped card plates (36).

2. The medical polymer radiation shielding fire door according to claim 1, characterized in that: The power assembly comprises an adjusting motor (10) fixedly mounted on an inner wall of one side of a power box (6); a connecting member is mounted on an output shaft of the adjusting motor (10); the connecting member is mounted on the bottom inner wall of the power box (6); a transmission disc (13) is mounted on the top of the connecting member; a stopper shaft (15) is fixedly mounted at an eccentric position on the top of the transmission disc (13); the top end of the stopper shaft (15) extends into the driving hole (16) and is in transmission cooperation with the inner wall of the driving hole (16).

3. The medical polymer radiation shielding fire door according to claim 2, characterized in that: The connecting member comprises a driving screw (11) fixedly mounted on an output shaft of the adjusting motor (10), one end of the driving screw (11) being slidably connected to the top inner wall of the power box (6), a rack (12) being slidably connected to the bottom inner wall of the power box (6), a driving threaded plate (17) being fixedly mounted on one side of the top of the rack (12), the driving screw (11) passing through the driving threaded plate (17) and being threadedly connected to the driving threaded plate (17), a gear (14) being fixedly mounted on the bottom of the transmission plate (13), and the rack (12) being meshed with the gear (14).

4. The medical polymer radiation shielding fire door according to claim 1, characterized in that: The door panel mechanism comprises two door shells (22), and the two door shells (22) are made of metal material. The two door shells (22) are fixedly connected to form a closed chamber, and a shielding component is installed in the chamber. The tops of the two door shells (22) are equipped with the same upper guide wheel (32), and the number of the upper guide wheels (32) is two. The bottoms of the two door shells (22) are equipped with the same lower guide wheel (31), and the number of the lower guide wheels (31) is two. The upper guide wheel (32) and the lower guide wheel (31) are respectively rollingly matched with corresponding slideways (37). The door shell (22) close to the side where the door cover (2) is installed is fixedly equipped with a rectangular positioning frame (25), and the rectangular positioning frame (25) is snap-fitted with the rectangular isolation frame (5). The first threaded plate (28) and the second threaded plate (30) are respectively fixedly installed on the top and bottom of the door shell (22).

5. The medical polymer radiation shielding fire door according to claim 4, characterized in that: The shielding assembly comprises an isolation plate (23), the isolation plate (23) being arranged in a chamber formed by two door shells (22), the isolation plate (23) being made of a fireproof material, and metal shielding nets (24) being fixedly mounted on both sides of the isolation plate (23).

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