Civil air defense partition door

Abstract

The utility model discloses a civil defense partition door, which belongs to the technical field of civil defense doors, and comprises a door frame assembly, the door frame assembly comprises a fixed door frame, a movable door frame, a plurality of groups of first buffer assemblies and a second buffer assembly, the front side wall of the fixed door frame is connected with a plurality of groups of first buffer assemblies, and the front ends of the first buffer assemblies are connected with the movable door frame; the front end of the movable door frame is connected with a second buffering assembly. The front end of the movable door frame is connected with a door plate assembly which is closed in a power-off mode, and the door plate assembly is movably connected with the second buffering assembly. The door plate assembly is connected with a sealing assembly used for sealing treatment between the door plate assembly and the movable door frame. In this way, the first buffering assembly buffers the door plate assembly and the movable door frame, damage to the door plate assembly and the movable door frame caused by collision is avoided, and follow-up continuous use of the movable door frame is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, specifically to a civil defense partition door. Background Technology

[0002] Civil defense doors (civil defense partition doors) are the doors at the entrances and exits of civil defense projects. Civil defense doors belong to civil defense protection equipment.

[0003] For example, CN217975960U describes a multi-layered soundproof air-raid shelter door, including a door frame. A retaining frame is fixedly welded to the left side of the back surface of the door frame. Hinges are fixedly installed at the top and bottom of the right side of the back surface of the door frame by screws. The movable end of the hinge is fixedly connected to a protective shell by screws. The right side of the protective shell is fixedly connected to the main body of the protective door. This utility model solves the problem that existing soundproof air-raid shelter doors are usually single-layered soundproof doors. Although this method has a soundproofing effect, it cannot effectively block loud noise, which will affect the people inside the door. At the same time, the huge impact when the door is impacted or closed forcefully will also generate noise.

[0004] However, when the protective door panel of the aforementioned patent is impacted, the connection between the locking frame and the bolt causes damage to the locking frame and the bolt under stress, which is not conducive to subsequent use.

[0005] Based on this, this utility model designs a civil defense partition door to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a civil defense partition door.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A type of air-raid shelter partition door, comprising:

[0009] Door frame components;

[0010] The door frame assembly includes a fixed door frame, a movable door frame, a first buffer assembly, and a second buffer assembly. The front side wall of the fixed door frame is connected to multiple sets of first buffer assemblies. The front end of the first buffer assembly is connected to the movable door frame, and the front end of the movable door frame is connected to the second buffer assembly. The door panel assembly is hingedly mounted on one side wall in the height direction of the movable door frame. The door panel assembly has a closed position and an open position. When the door panel assembly is in the closed position, the second buffer assembly buffers the door panel assembly.

[0011] A sealing assembly is installed between the door panel assembly and the moving door frame. When the door panel assembly is in the closed position, the sealing assembly is used to seal the gap between the door panel assembly and the moving door frame.

[0012] Furthermore, the first buffer assembly includes a sleeve, a first sliding plate, a sliding rod, and a first spring. Multiple sets of sleeves are fixedly connected to the side wall of the fixed door frame near the movable door frame. The first sliding plate is slidably connected to the inner wall of the sleeve. The end of the first sliding plate near the movable door frame is fixedly connected to the sliding rod. The sliding rod is slidably connected to the sliding hole opened in the sleeve. The end of the sliding rod away from the first sliding plate is fixedly connected to the movable door frame. The first spring is sleeved on the outer wall of the sliding rod. The two ends of the first spring are fixedly connected to the first sliding plate and the inner wall of the sleeve near the movable door frame, respectively.

[0013] Furthermore, when the first spring is in its original state, the first slide plate is located at the middle of the sleeve.

[0014] Furthermore, the second buffer assembly includes a second spring, a groove, and a second sliding plate. Multiple sets of grooves are provided at the end of the movable door frame away from the fixed door frame. The second spring is fixedly installed in the groove, and the second sliding plate is fixedly connected to the outer end of the second spring. The outer wall of the second sliding plate is slidably connected to the inner wall of the groove.

[0015] Furthermore, the door panel assembly includes an outer door panel, an inner door panel, hinges, and a drive assembly. Hinges are connected at equal intervals on the side of the movable door frame away from the fixed door frame. The hinges are fixedly connected to the outer door panel. The inner door panel is fixedly connected to the side wall of the outer door panel near the movable door frame. The drive assembly is movably connected to the top of the outer door panel near the hinge. The drive assembly is fixedly installed on the side wall of the movable door frame away from the fixed door frame.

[0016] Furthermore, the drive assembly includes an outer cover, an electric push rod, a sliding block, a transverse groove, a third spring, and a connecting plate. The outer cover is fixedly installed on the side wall of the movable door frame away from the fixed door frame. An electric push rod is fixedly connected to the left end of the movable door frame. A sliding block is fixedly connected to the drive end of the electric push rod. A third spring is fixedly connected to the end of the sliding block away from the electric push rod. The end of the third spring away from the sliding block is fixedly connected to the outer cover. A transverse groove is provided at the bottom of the outer cover. The lower end of the sliding block slides in the transverse groove. The lower end of the sliding block is rotatably connected to one end of the connecting plate. The other end of the connecting plate is rotatably connected to the top of the outer door panel near the hinge.

[0017] Furthermore, the sealing assembly includes a one-way air supply assembly and an expansion sealing assembly. The one-way air supply assembly is connected to the outer door panel, the one-way air supply assembly is connected to the expansion sealing assembly, the expansion sealing assembly is connected to the inner door panel, and the expansion sealing assembly is movably connected to the movable door frame.

[0018] Furthermore, the one-way air supply assembly includes a piston rod, an air cylinder, a mounting bracket, a first one-way valve, a second one-way valve, an air outlet pipe, and a piston. The mounting bracket is fixedly installed on the outer wall of the outer door panel. An air cylinder is installed in the mounting hole of the mounting bracket. A piston is slidably connected inside the air cylinder. A piston rod is fixedly connected to the outer wall of the piston. An air outlet pipe and an air inlet pipe are fixedly connected to the end of the air cylinder away from the piston rod. A first one-way valve is fixedly connected to the air inlet pipe, and a second one-way valve is fixedly connected to the air outlet pipe. The first one-way valve and the second one-way valve open in opposite directions. The air outlet pipe is fixedly connected to the outer wall of the outer door panel and communicates with the expansion sealing assembly.

[0019] Furthermore, the expansion sealing assembly includes an air passage, an annular airbag, and an annular groove. An air passage is provided in the outer door panel and the inner door panel, and the air passage is connected to the air outlet pipe. An annular groove is provided on the outer edge of the inner door panel, and an annular airbag is fixedly connected in the annular groove, which is connected to the air passage.

[0020] Compared with the prior art, the advantages of this utility model are as follows: This utility model connects the fixed door frame to the wall. When a power failure occurs, the door panel assembly closes. When the door panel assembly closes, it contacts the second buffer assembly, which cushions the door panel assembly. After the door panel assembly stabilizes, it connects to the movable door frame, thus locking the air-raid shelter door. When the door panel assembly is impacted after locking, the first buffer assembly cushions the door panel assembly and the movable door frame, preventing damage to them and facilitating the continued use of the movable door frame. At the same time, the sealing assembly seals the gap between the door panel assembly and the movable door frame, providing good sealing performance and effectively preventing water and toxic gas damage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This utility model provides a three-dimensional civil defense partition door. Figure 1 ;

[0023] Figure 2 This is a front view of a civil defense partition door according to the present invention;

[0024] Figure 3 This is a left view of a civil defense partition door according to this utility model;

[0025] Figure 4 This utility model provides a three-dimensional civil defense partition door. Figure 2 ;

[0026] Figure 5 For along Figure 2 A sectional view along the AA direction;

[0027] Figure 6 For along Figure 2 BB direction sectional view;

[0028] Figure 7 For along Figure 3 A cross-sectional view along the CC direction;

[0029] Figure 8 for Figure 5 Enlarged view of point D;

[0030] Figure 9 for Figure 6 Enlarged view of point E;

[0031] Figure 10 for Figure 7 Enlarged view at point F;

[0032] Figure 11 This is a schematic diagram of a unidirectional gas supply component.

[0033] The labels in the diagram represent:

[0034] 1. Door frame assembly; 11. Fixed door frame; 12. Movable door frame; 13. Sleeve; 14. First sliding plate; 15. Sliding rod; 16. First spring; 17. Second spring; 18. Groove; 19. Second sliding plate; 2. Sealing assembly; 21. Air passage; 22. Annular airbag; 23. Annular groove; 24. Piston rod; 25. Air cylinder; 26. Mounting bracket; 27. First one-way valve; 28. Second one-way valve; 29. ​​Pressure relief valve; 210. Air outlet pipe; 211. Air inlet pipe; 212. Piston; 3. Door panel assembly; 31. Outer door panel; 32. Inner door panel; 33. Connecting plate; 34. Outer cover; 35. Hinge; 36. Electric push rod; 37. Sliding block; 38. Horizontal groove; 39. Third spring; Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0037] Example 1: In some examples, please refer to Figures 1-11 A type of air-raid shelter partition door, including a door frame assembly 1:

[0038] Door frame assembly 1 includes a fixed door frame 11, a movable door frame 12, a first buffer assembly and a second buffer assembly. The front side wall of the fixed door frame 11 is connected to multiple sets of first buffer assemblies. The front end of the first buffer assembly is connected to the movable door frame 12. The front end of the movable door frame 12 is connected to the second buffer assembly.

[0039] The front end of the movable door frame 12 is connected to a door panel assembly 3 that can be automatically opened and closed when power is cut off. The door panel assembly 3 is movably connected to the second buffer assembly.

[0040] The door panel assembly 3 is connected to a sealing assembly 2 for sealing between the door panel assembly 3 and the movable door frame 12;

[0041] The fixed door frame 11 is connected to the wall. When the power is off, the door panel assembly 3 closes. When the door panel assembly 3 closes, it contacts the second buffer assembly, which cushions the door panel assembly 3. After the door panel assembly 3 is stable, it is connected to the movable door frame 12, thus locking the air-raid shelter door. When the door panel assembly 3 is locked, the first buffer assembly cushions the door panel assembly 3 and the movable door frame 12 when it is impacted, preventing damage to the door panel assembly 3 and the movable door frame 12 and facilitating the continued use of the movable door frame 12. At the same time, the sealing assembly 2 can seal the gap between the door panel assembly 3 and the movable door frame 12, providing good sealing performance and effectively preventing water and toxic gas.

[0042] Please see Figures 1-8 The first buffer assembly includes a sleeve 13, a first sliding plate 14, a sliding rod 15, and a first spring 16. Multiple sets of sleeves 13 are fixedly connected to the side wall of the fixed door frame 11 near the movable door frame 12. The multiple sets of sleeves 13 are distributed circumferentially along the fixed door frame 11. The first sliding plate 14 is slidably connected to the inner wall of the sleeve 13. The end of the first sliding plate 14 near the movable door frame 12 is fixedly connected to the sliding rod 15. The sliding rod 15 is slidably connected to the sliding hole opened in the sleeve 13. The end of the sliding rod 15 away from the first sliding plate 14 is fixedly connected to the movable door frame 12. The first spring 16 is sleeved on the outer wall of the sliding rod 15. The two ends of the first spring 16 are fixedly connected to the inner wall of the first sliding plate 14 and the sleeve 13 near the movable door frame 12, respectively.

[0043] The cross-sectional dimension of the slide bar 15 is smaller than the cross-sectional dimension of the first slide plate 14;

[0044] When the first spring 16 is in its original state, the first slide plate 14 is located at the middle of the sleeve 13.

[0045] The second buffer assembly includes a second spring 17, a groove 18, and a second sliding plate 19. Multiple sets of grooves 18 are provided at the end of the movable door frame 12 away from the fixed door frame 11. The second spring 17 is fixedly installed in the groove 18. The second sliding plate 19 is fixedly connected to the outer end of the second spring 17. The outer wall of the second sliding plate 19 is slidably connected to the inner wall of the groove 18.

[0046] When the fixed door frame 11 is connected to the wall, the door panel assembly 3 closes when the power is off. When the door panel assembly 3 is closed, it contacts the second slide plate 19 of the second buffer assembly. The door panel assembly 3 pushes the second slide plate 19 to move into the groove 18. The second slide plate 19 pushes the second spring 17 to compress. The second spring 17 of the second buffer assembly buffers the door panel assembly 3. After the door panel assembly 3 is stable, it is connected to the movable door frame 12, thus locking the civil defense partition door.

[0047] When the door panel assembly 3 is locked and impacted, the door panel assembly 3 drives the movable door frame 12 to move. The movable door frame 12 drives the slide rod 15 of the first buffer assembly to move. The slide rod 15 drives the first slide plate 14 to move. The first slide plate 14 drives the first spring 16 to compress or stretch. The first spring 16 of the first buffer assembly buffers the door panel assembly 3 and the movable door frame 12 to avoid damage to the door panel assembly 3 and the movable door frame 12 caused by the impact, which is beneficial for the continued use of the movable door frame 12.

[0048] Please see Figures 1-7 , Figure 10 The door panel assembly 3 includes an outer door panel 31, an inner door panel 32, hinges 35, and a drive assembly. Hinges 35 are evenly spaced along the end of the movable door frame 12 away from the fixed door frame 11. The outer door panel 31 is fixedly connected to the hinges 35. The inner door panel 32 is fixedly connected to the side wall of the outer door panel 31 near the movable door frame 12. The drive assembly is movably connected to the top of the outer door panel 31 near the hinges 35. The drive assembly is fixedly mounted on the side wall of the movable door frame 12 away from the fixed door frame 11.

[0049] When the door panel assembly 3 is closed, the outer peripheral surface of the inner door panel 32 is in contact with the inner peripheral surface of the movable door frame 12;

[0050] The drive assembly includes an outer cover 34, an electric push rod 36, a sliding block 37, a transverse groove 38, a third spring 39, and a connecting plate 33. The outer cover 34 is fixedly installed on the side wall of the movable door frame 12 away from the fixed door frame 11. An electric push rod 36 is fixedly connected to the left end of the movable door frame 12. A sliding block 37 is fixedly connected to the drive end of the electric push rod 36. A third spring 39 is fixedly connected to the end of the sliding block 37 away from the electric push rod 36. The end of the third spring 39 away from the sliding block 37 is fixedly connected to the outer cover 34. A transverse groove 38 is provided at the bottom of the outer cover 34. The lower end of the sliding block 37 slides in the transverse groove 38. The lower end of the sliding block 37 is rotatably connected to one end of the connecting plate 33. The other end of the connecting plate 33 is rotatably connected to the top of the outer door panel 31 near the hinge 35.

[0051] The electric push rod 36 assists the operator in closing or opening the door panel assembly 3; and fixes the door panel assembly 3 in the open and closed positions.

[0052] Connect the fixed door frame 11 to the wall, separate the interlocking assembly 33 from the movable door frame 12. When the door panel assembly 3 needs to be opened, rotate the door panel assembly 3 to the side away from the door frame assembly 1. This energizes the electric push rod 36 of the drive assembly. The electric push rod 36 pushes the sliding block 37 to move, which in turn moves the connecting plate 310. The connecting plate 310 then causes the outer door panel 31 to rotate outward along the hinge 35, facilitating the opening of the door panel assembly 3. The electric push rod 36 then fixes the door panel assembly 3 in the open state. When the door panel assembly 3 needs to be closed, de-energize the electric push rod 36. The third spring... The restoring force of 39 drives the sliding block 37 to move towards the electric push rod 36. The sliding block 37 drives the connecting plate 310 to move. The connecting plate 310 drives the outer door panel 31 to rotate inward along the hinge 35. The outer door panel 31 drives the inner door panel 32 to rotate towards the movable door frame 12. When the electric push rod 36 is de-energized, the door panel assembly 3 automatically closes, which is convenient for actual use. The second buffer assembly buffers the door panel assembly 3. After the door panel assembly 3 is stable, the interlocking assembly 33 connects with the movable door frame 12, so that the door panel assembly 3 and the movable door frame 12 are properly connected, and the door panel assembly 3 and the door frame assembly 1 are stably connected.

[0053] Please see Figures 1-11 The sealing assembly 2 includes a one-way air supply assembly and an expansion sealing assembly. The one-way air supply assembly is connected to the outer door panel 31, the one-way air supply assembly is connected to the expansion sealing assembly, the expansion sealing assembly is connected to the inner door panel 32, and the expansion sealing assembly is movably connected to the movable door frame 12.

[0054] The one-way air supply assembly includes a piston rod 24, an air cylinder 25, a mounting bracket 26, a first one-way valve 27, a second one-way valve 28, an air outlet pipe 210, and a piston 212. The mounting bracket 26 is fixedly installed on the outer wall of the outer door panel 31. The air cylinder 25 is installed in the mounting hole of the mounting bracket 26. The piston 212 is slidably connected inside the air cylinder 25. The piston rod 24 is fixedly connected to the outer wall of the piston 212. The end of the air cylinder 25 away from the piston rod 24 is fixedly connected to the air outlet pipe 210 and the air inlet pipe 211. The first one-way valve 27 is fixedly connected to the air inlet pipe 211. The second one-way valve 28 is fixedly connected to the air outlet pipe 210. The first one-way valve 27 and the second one-way valve 28 open in opposite directions. The air outlet pipe 210 is fixedly connected to the outer wall of the outer door panel 31 and communicates with the expansion sealing assembly.

[0055] When piston 212 moves toward outlet pipe 210, second check valve 28 opens and first check valve 27 closes; when piston 212 moves away from outlet pipe 210, second check valve 28 closes and first check valve 27 opens.

[0056] The pressure relief valve 29 is fixedly installed on the air outlet pipe 210, and the second one-way valve 28 is located between the pressure relief valve 29 and the air cylinder 25.

[0057] The expansion sealing assembly includes an air passage 21, an annular airbag 22, and an annular groove 23. An air passage 21 is provided in the outer door panel 31 and the inner door panel 32. The air passage 21 is connected to the air outlet pipe 210. An annular groove 23 is provided on the outer edge of the inner door panel 32. An annular airbag 22 is fixedly connected in the annular groove 23. The annular groove 23 is connected to the air passage 21.

[0058] After the door panel assembly 3 and the movable door frame 12 are connected, the piston rod 24 of the one-way air supply assembly is pulled. The piston rod 24 drives the piston 212 away from the air outlet pipe 210. The second one-way valve 28 is closed and the first one-way valve 27 is opened. The outside gas enters the air cylinder 25 through the first one-way valve 27. Then, the piston rod 24 drives the piston 212 to move towards the air outlet pipe 210. The second one-way valve 28 is opened and the first one-way valve 27 is closed. The gas in the piston 212 enters the air passage 21 of the expansion sealing assembly through the air outlet pipe 210. The gas enters the annular groove 23. The gas in the annular groove 23 inflates the annular airbag 22. After the annular airbag 22 is inflated, it contacts the inner wall of the movable door frame 12. The sealing assembly 2 can seal the gap between the door panel assembly 3 and the movable door frame 12. The sealing performance is good and it can effectively prevent water and toxic gas.

[0059] When the door panel assembly 3 needs to be opened, the pressure relief valve 29 is opened, and the high-pressure gas in the annular airbag 22 is discharged through the air passage 21 and the air outlet pipe 210 through the pressure relief valve 29. The restoring force of the annular groove 23 is recovered into the annular airbag 22, which is convenient for actual use.

[0060] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of air-raid shelter partition door, characterized in that: include: Door frame assembly (1); The door frame assembly (1) includes a fixed door frame (11), a movable door frame (12), a first buffer assembly, and a second buffer assembly. The front side wall of the fixed door frame (11) is connected to multiple sets of first buffer assemblies. The front end of the first buffer assembly is connected to the movable door frame (12). The front end of the movable door frame (12) is connected to the second buffer assembly. The door panel assembly (3) is hingedly disposed on one side wall in the height direction of the movable door frame (12). The door panel assembly (3) has a closed position and an open position. When the door panel assembly (3) is in the closed position, the second buffer assembly buffers the door panel assembly (3). A sealing component (2) is disposed between the door panel assembly (3) and the movable door frame (12). When the door panel assembly (3) is in the closed position, the sealing component (2) is used to seal the gap between the door panel assembly (3) and the movable door frame (12).

2. The air-raid shelter partition door according to claim 1, characterized in that, The first buffer assembly includes a sleeve (13), a first sliding plate (14), a sliding rod (15), and a first spring (16). The fixed door frame (11) is fixedly connected to the side wall near the movable door frame (12) with multiple sets of sleeves (13). The inner wall of the sleeve (13) is slidably connected to the first sliding plate (14). The end of the first sliding plate (14) near the movable door frame (12) is fixedly connected to the sliding rod (15). The sliding rod (15) is slidably connected to the sliding hole opened in the sleeve (13). The end of the sliding rod (15) away from the first sliding plate (14) is fixedly connected to the movable door frame (12). The outer wall of the sliding rod (15) is fitted with the first spring (16). The two ends of the first spring (16) are fixedly connected to the inner wall of the first sliding plate (14) and the sleeve (13) near the movable door frame (12), respectively.

3. A civil defense partition door according to claim 2, characterized in that, When the first spring (16) is in its original state, the first slide plate (14) is located at the middle end of the sleeve (13).

4. A civil defense partition door according to claim 3, characterized in that, The second buffer assembly includes a second spring (17), a groove (18), and a second sliding plate (19). The movable door frame (12) has multiple sets of grooves (18) at the end away from the fixed door frame (11). The second spring (17) is fixedly installed in the groove (18). The second sliding plate (19) is fixedly connected to the outer end of the second spring (17). The outer wall of the second sliding plate (19) is in contact with the inner wall of the groove (18) and is slidably connected.

5. A civil defense partition door according to claim 4, characterized in that, The door panel assembly (3) includes an outer door panel (31), an inner door panel (32), a hinge (35), and a drive assembly. The movable door frame (12) is connected to the hinge (35) at equal intervals on the side away from the fixed door frame (11). The hinge (35) is fixedly connected to the outer door panel (31). The outer door panel (31) is fixedly connected to the inner door panel (32) on the side wall of the movable door frame (12) near the movable door frame (12). The top of the outer door panel (31) is movably connected to the drive assembly on the side wall of the movable door frame (12) away from the fixed door frame (11).

6. A civil defense partition door according to claim 5, characterized in that, The drive assembly includes an outer cover (34), an electric push rod (36), a sliding block (37), a transverse groove (38), a third spring (39), and a connecting plate (33). The outer cover (34) is fixedly installed on the side wall of the movable door frame (12) away from the fixed door frame (11). The left end of the movable door frame (12) is fixedly connected to the electric push rod (36), and the driving end of the electric push rod (36) is fixedly connected to the sliding block (37). The sliding block (37) is located away from the electric push rod (38). A third spring (39) is fixedly connected to the end of the sliding block (37). The end of the third spring (39) away from the sliding block (37) is fixedly connected to the outer cover (34). A horizontal groove (38) is provided at the bottom of the outer cover (34). The lower end of the sliding block (37) slides in the horizontal groove (38). The lower end of the sliding block (37) is rotatably connected to one end of the connecting plate (33). The other end of the connecting plate (33) is rotatably connected to the top of the outer door panel (31) near the hinge (35).

7. A civil defense partition door according to any one of claims 5-6, characterized in that, The sealing assembly (2) includes a one-way air supply assembly and an expansion sealing assembly. The one-way air supply assembly is connected to the outer door panel (31), the one-way air supply assembly is connected to the expansion sealing assembly, the expansion sealing assembly is connected to the inner door panel (32), and the expansion sealing assembly is movably connected to the movable door frame (12).

8. A civil defense partition door according to claim 7, characterized in that, The one-way air supply assembly includes a piston rod (24), an air cylinder (25), a mounting bracket (26), a first one-way valve (27), a second one-way valve (28), an air outlet pipe (210), and a piston (212). The mounting bracket (26) is fixedly installed on the outer wall of the outer door panel (31). An air cylinder (25) is installed in the mounting hole of the mounting bracket (26). A piston (212) is slidably connected inside the air cylinder (25). A piston rod (24) is fixedly connected to the outer wall of the piston (212). The end of the air cylinder (25) away from the piston rod (24) is fixedly connected to an air outlet pipe (210) and an air inlet pipe (211). A first one-way valve (27) is fixedly connected to the air inlet pipe (211), and a second one-way valve (28) is fixedly connected to the air outlet pipe (210). The first one-way valve (27) and the second one-way valve (28) open in opposite directions. The air outlet pipe (210) is fixedly connected to the outer wall of the outer door panel (31), and the air outlet pipe (210) communicates with the expansion sealing assembly.

9. A civil defense partition door according to claim 8, characterized in that, The expansion sealing assembly includes an air passage (21), an annular airbag (22), and an annular groove (23). The outer door panel (31) and the inner door panel (32) are provided with air passages (21), which are connected to the air outlet pipe (210). The outer edge of the inner door panel (32) is provided with an annular groove (23), and the annular airbag (22) is fixedly connected in the annular groove (23). The annular groove (23) is connected to the air passage (21).

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