Sealing door for civil air defense engineering

Abstract

The sealing door comprises a mounting frame, a door frame and a sealing door body, the mounting frame is welded to the door frame, an opening is formed in the middle of the rear side face of the door frame, and a second groove is formed in the lower inner wall of the door frame; a second groove is formed in the middle of the upper face of the door frame, sealing door bodies are movably inserted into the two sides of the interior of the second groove, first grooves are formed in the middles of the lower faces of the two sealing door bodies, automatic blocking structures are arranged in the second grooves, a driving structure is arranged in the middle of the upper face of the door frame, and supporting protection structures are arranged on the two sides of the interior of the door frame. When the two sealing doors are closed, the blocking plate in the automatic blocking structure can be automatically lifted from the interior of the door frame, the preliminary and timely protection effect is achieved, then flood passing through the sealing doors is reduced, sealing can be automatically closed and the blocking plate can be automatically lifted through the driving structure, and operation is more labor-saving and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of civil air defense projects, and in particular to a sealing door used in civil air defense projects. Background Art

[0002] It is called civil air defense project, including various civil air defense command and communication facilities, concealed fortifications, underground warehouses for storing production and living materials, underground production workshops of industrial enterprises, underground transportation facilities, underground hospitals, etc. Sealed doors are used in civil air defense projects; The sealed door of the civil air defense project in the prior art is provided with a temporary connecting mechanism installed on the main body of the protective door. The temporary connecting mechanism includes a temporary connecting plate, a control handle, a rotating shaft, a connecting plate and a connecting screw. The temporary connecting plate can be stably installed by installing the temporary connecting plate. The control handle and the rotating shaft are installed. The control handle and the rotating shaft can be used together to facilitate the staff to open and close the temporary connecting plate. The connecting plate can be conveniently connected by installing the connecting plate. The connecting screws can be installed. The setting of the connecting screws can further improve the connection effect. The temporary connecting mechanism can provide a structure that can be opened for temporary connection in an emergency during the working process. The temporary connecting structure can be used to cope with the occurrence of an emergency well. In the prior art, the sealing doors of artificial projects generally adopt double-opening doors. In emergency situations such as floods, the two sealing doors need to be closed toward the middle. There is a time difference in the process of the two sealing doors turning to close. In this way, the flood will directly pass through the sealing doors, resulting in poor protection effect and increasing the difficulty of closing the sealing doors. Therefore, there is room for improvement. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a sealing door for civil air defense projects.

[0004] The sealing door for civil air defense projects provided by the present invention adopts the following technical solution: A sealed door for civil air defense engineering, comprising an installation frame, a door frame and a sealed door body, wherein the door frame is welded with the installation frame, an opening is provided in the middle of the rear side surface of the door frame, a second groove is provided on the lower inner wall of the door frame, and the sealed door body is movably inserted into both sides of the second groove, a first groove is provided in the middle of the lower sides of the two sealed door bodies, an automatic blocking structure is provided in the second groove, a driving structure is provided in the middle of the upper side of the door frame, a supporting and protective structure is provided on both sides of the door frame, a first shielding structure is provided on the rear side of the lower inner wall of the door frame, a second shielding structure is provided on the front side of the lower inner wall of the door frame, and a third shielding structure is provided on both sides of the inner wall of the first groove; The automatic blocking structure includes a blocking plate that is movably inserted into the first groove and the second groove, two guide columns are connected between the upper inner wall of the door frame and the lower groove wall of the second groove, the two guide columns are distributed on both sides of the door frame, through holes for the guide columns to movably pass through are opened near both ends of the blocking plate, a guide groove is opened in the middle of the blocking plate, the two ends of the guide groove are in a "Z" shape, and the middle of the guide groove is in a straight groove shape, a through rod is connected between the front and rear groove walls of the first groove, and the two through rods movably pass through the two ends of the guide groove.

[0005] Preferably, the third shielding structure includes a third groove opened on both sides of the upper groove wall of the first groove, baffles are movably inserted into the two third grooves, the bottom ends of the baffles are pressed against the blocking plate, a vertical rod is connected to the top groove wall of the third groove, the bottom end of the vertical rod is movably inserted into a through hole opened in the middle of the baffle, a first spring is sleeved on the vertical rod, and the two ends of the first spring are respectively connected to the baffle and the upper groove wall of the third groove.

[0006] Preferably, the first shielding structure includes a first sliding groove at the bottom ends of both side surfaces of the opening on the door frame, and a first baffle is slidably arranged in the two first sliding grooves. A first inclined portion is arranged on both end surfaces of the first baffle, and the first inclined portion is an inclined surface. The first baffle extends to the upper side of the blocking plate, and a second spring is connected between the first baffle and the rear side groove wall of the first sliding groove.

[0007] Preferably, the second shielding structure includes a second sliding groove opened at the bottom end of the front side of the inner walls on both sides of the door frame, a second baffle is slidably arranged between the two second sliding grooves, the second baffle extends to the blocking plate, and the rear side surface of the second baffle is located at the position of the two sealing door bodies and a fourth groove is opened, and a second inclined portion is arranged on the groove wall on one side of the two fourth grooves close to each other, the second inclined portion is an inclined surface, and a third spring is connected between the two ends of the second baffle and the front groove wall of the fourth groove.

[0008] Preferably, the supporting protection structure includes protection frames arranged on both sides of the door frame near the top, a flip rod is fixedly passed through the bottom end of the protection frame, one end of the flip rod is rotatably connected to the side inner wall of the door frame, and a driving structure is provided on both of the sealing door bodies.

[0009] Preferably, the driving structure includes a fixed tube connected to the two sealing door bodies at a side away from each other and at the position of the flip rod, the flip rod is movable through the fixed tube, the sealing door body is provided with a slot for the flip rod to be movably inserted, an insertion rod is fixedly passed through the fixed tube, a guide groove is provided on the flip rod, the guide groove is a half-circle spiral on the flip rod, and one end of the insertion rod is movably inserted into the guide groove.

[0010] Preferably, the driving structure includes a fifth groove opened in the middle of the door frame, the fifth groove is connected to the interior of the door frame, and driving blocks are connected to the sides of the two sealed door bodies that are close to each other. The driving blocks are movably inserted into the fifth groove, and a motor is installed on the groove wall at one end of the fifth groove. A bidirectional screw is connected to one end of the motor output shaft, and the threads on the left and right sections of the bidirectional screw are in opposite directions. Thread grooves for the bidirectional screw to pass through are opened on the two driving blocks.

[0011] In summary, the present invention includes the following beneficial technical effects: The present invention is provided with a driving structure and an automatic blocking structure. When the two sealed doors are closed, the blocking plate in the automatic blocking structure can be automatically lifted from the door frame to perform a preliminary and timely protective function, thereby reducing the flood from passing through the sealed door. In addition, the driving structure can automatically close the seal and lift the blocking plate, making the operation more labor-saving and convenient. The present invention provides a third shielding structure in the first groove of the sealing door, and utilizes the baffle plate on the third shielding structure to prevent debris from entering the first groove and hindering the normal upward movement of the blocking plate for protection, and utilizes the compression of the first spring to enable the blocking plate to smoothly move upward for protection; The present invention provides a first shielding structure and a second shielding structure on the door frame, and utilizes the first and second blocking bars on the first and second shielding structures to reduce the amount of debris entering the second groove, which causes the sealed door body to be unable to close normally. In addition, during the closing process of the sealed door body, the first and second blocking bars can be pushed away normally, thereby preventing the first and second blocking bars from interfering with the normal closing of the sealed door body. The present invention provides a supporting protection structure and a driving structure on the door frame and the sealed door body, so that during the closing process of the two sealed door bodies, the driving structure can automatically turn down the protection frame support on the supporting protection structure and press it against the ground, thereby increasing the impact resistance of the sealed door. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a sealed door used in civil air defense projects in an embodiment of the present invention; Figure 2 In the embodiment of the present invention Figure 1 A magnified view of the structure at A; Figure 3 In the embodiment of the present invention Figure 1 A magnified view of the structure at B; Figure 4 In the embodiment of the present invention Figure 1 A magnified view of the structure at C; Figure 5is a schematic diagram of the structure in the third groove in an embodiment of the present invention; Figure 6 In the embodiment of the present invention Figure 5 A magnified view of the structure at D; Figure 7 is a schematic diagram of the structure in the second groove in an embodiment of the present invention; Figure 8 In the embodiment of the present invention Figure 7 Enlarged view of the structure at E.

[0013] Explanation of the accompanying drawings: 1. Installation frame; 2. Door frame; 3. Sealing door body; 4. First groove; 5. Second groove; 6. Blocking plate; 7. Guide column; 8. Guide groove; 9. Through rod; 10. First spring; 11. Baffle plate; 12. Third groove; 13. Vertical rod; 14. First slide groove; 15. First inclined portion; 16. First stop bar; 17. Second stop bar; 18. Fourth groove; 19. Second inclined portion; 20. Flip rod; 21. Protection frame; 22. Fixed tube; 23. Insert rod; 24. Guide groove; 25. Driving block; 26. Motor; 27. Fifth groove; 28. Bidirectional screw. DETAILED DESCRIPTION

[0014] The following is combined with Figure 1-Figure 8 The present invention is described in further detail.

[0015] The embodiment of the present invention discloses a sealed door for civil air defense engineering, comprising an installation frame 1, a door frame 2 and a sealed door body 3, the installation frame 1 is welded on the door frame 2, an opening is provided in the middle of the rear side of the door frame 2, a second groove 5 is provided on the lower inner wall of the door frame 2, the sealed door body 3 is movably inserted into both sides of the second groove 5, a first groove 4 is provided in the middle of the lower sides of the two sealed door bodies 3, an automatic blocking structure is provided in the second groove 5, a driving structure is provided in the middle of the upper side of the door frame 2, a supporting and protective structure is provided on both sides of the door frame 2, a first shielding structure is provided at the rear side of the lower inner wall of the door frame 2, and a A second blocking structure, a third blocking structure is arranged on both sides of the inner wall of the first groove 4; the automatic blocking structure includes a blocking plate 6 movably inserted into the first groove 4 and the second groove 5, two guide columns 7 are connected between the upper inner wall of the door frame 2 and the lower groove wall of the second groove 5, the two guide columns 7 are distributed on both sides of the door frame 2, through holes for the guide columns 7 to movably pass through are opened near both ends of the blocking plate 6, a guide groove 8 is opened in the middle of the blocking plate 6, the two ends of the guide groove 8 are in a "Z" shape, and the middle of the guide groove 8 is in a straight groove shape, a through rod 9 is connected between the front and rear groove walls of the first groove 4, and the two through rods 9 movably pass through both ends of the guide groove 8 The driving structure includes a fifth groove 27 provided in the middle of the door frame 2, the fifth groove 27 is communicated with the interior of the door frame 2, and driving blocks 25 are connected to the sides of the two sealed door bodies 3 close to each other, and the driving blocks 25 are movably inserted into the fifth groove 27, and a motor 26 is installed on the groove wall at one end of the fifth groove 27, and a bidirectional screw 28 is connected to one end of the output shaft of the motor 26. The left and right sections of the bidirectional screw 28 have opposite thread directions, and the two driving blocks 25 are provided with thread grooves for the bidirectional screw 28 to pass through. When the sealed door needs to be closed for protection under flood conditions, first, the motor 26 in the fifth groove 27 is started to drive the bidirectional screw 28 to rotate The two driving blocks 25 move synchronously toward each other on the rotating bidirectional screw 28, driving the two sealed door bodies 3 to move toward each other and close in the door frame 2, and in the process of moving, the two sealed door bodies 3 drive the through rod 9 to move toward the middle in the guide groove 8, and use the through rod 9 to squeeze the groove wall of the guide groove 8 upward. Before the two sealed door bodies 3 are closed, the blocking plate 6 is pushed out of the second groove 5 of the door frame 2, which plays a preliminary blocking and protective role against floods, and the protection is more timely, reducing the direct passage of floods through the two closed sealed door bodies 3. Finally, the two sealed door bodies 3 are completely closed for manual work.

[0016] See also Figure 1 , Figure 2 , Figure 5 and Figure 6The third shielding structure includes a third groove 12 provided at both sides of the upper groove wall of the first groove 4, and baffles 11 are movably inserted into the two third grooves 12, and the bottom end of the baffle 11 is pressed against the blocking plate 6, and a vertical rod 13 is connected to the top groove wall of the third groove 12, and the bottom end of the vertical rod 13 is movably inserted into the through hole provided in the middle of the upper part of the baffle 11, and a first spring 10 is sleeved on the vertical rod 13, and the two ends of the first spring 10 are respectively connected to the baffle 11 and the upper groove wall of the third groove 12. Under the elastic force of the first spring 10, when the two sealing door bodies 3 are in the open state, the baffle 11 is pushed to be pressed against the blocking plate 6 to prevent foreign debris from entering the first groove 4, resulting in the problem that the blocking plate 6 cannot be normally lifted, and in the process of lifting the blocking plate 6, the baffle 11 is driven to move up in the third groove 12 by squeezing the compression of the first spring 10, so as to prevent the baffle 11 from interfering with the normal lifting protection work of the blocking plate 6; The first shielding structure includes a first slide groove 14 at the bottom ends of both sides of the opening on the door frame 2, and first blocking bars 16 are slidably arranged in the two first slide grooves 14. First inclined portions 15 are arranged on both end surfaces of the first blocking bars 16. The first inclined portions 15 are inclined surfaces. The first blocking bars 16 extend to the upper part of the blocking plate 6. A second spring is connected between the first blocking bar 16 and the rear side groove wall of the first slide groove 14. The first blocking bar 16 extends to the upper part of the blocking plate 6, which can play a shielding role at the upper rear side of the second groove 5 to prevent debris from entering the second groove. 5, which hinders the normal closing work of the two sealing door bodies 3, and when the sealing door body 3 moves toward the middle, the first inclined portion 15 at the end of the first baffle 16 can be squeezed to push the first baffle 16 out from above the blocking plate 6, thereby preventing the first baffle 16 from hindering the normal movement of the sealing door body 3 and the blocking plate 6. At the same time, the elastic force of the second spring can be used to push the first baffle 16 to move in the opposite direction to the upper part of the blocking plate 6 when the two sealing door bodies 3 move away from each other and reset, so as to continue to block the debris; The second shielding structure includes a second slide groove opened at the bottom end of the front side of the inner wall on both sides of the door frame 2, a second stopper 17 is slidably arranged between the two second slide grooves, the second stopper 17 extends to the blocking plate 6, and the rear side of the second stopper 17 is located at the position of the two sealing door bodies 3. A fourth groove 18 is opened, and the two fourth grooves 18 are close to each other. A second inclined portion 19 is arranged on one side of the groove wall, and the second inclined portion 19 is an inclined surface. A third spring is connected between the two ends of the second stopper 17 and the front side groove wall of the fourth groove 18. The second stopper 17 is used to The front side above the second groove 5 serves to shield debris and prevent it from entering the second groove 5, and as the two sealing door bodies 3 move toward each other, the second blocking bar 17 can be pushed out from above the blocking plate 6 by squeezing the second inclined portion 19, so that the sealing door bodies 3 and the blocking plate 6 can move smoothly, and when the two sealing door bodies 3 move away from each other and reset, the elastic force of the third spring can push the second blocking bar 17 to move in the opposite direction and reset to above the blocking plate 6, thereby continuing to shield debris.

[0017] See also Figure 1 , Figure 6 and Figure 8 The supporting protection structure includes a protection frame 21 arranged on both sides of the door frame 2 near the top, a flip rod 20 is fixedly passed through the bottom end of the protection frame 21, one end of the flip rod 20 is rotatably connected to the side inner wall of the door frame 2, and a driving structure is arranged on both sealed door bodies 3; The driving structure includes a fixed tube 22 connected to the side of the two sealing door bodies 3 away from each other and at the position of the flip rod 20, the fixed tube 22 of the flip rod 20 is movable, a slot for the flip rod 20 to be movably inserted is provided on the sealing door body 3, a plug rod 23 is fixedly passed through the fixed tube 22, and a guide groove 24 is provided on the flip rod 20. The guide groove 24 is a half-circle spiral on the flip rod 20, and one end of the plug rod 23 is movably inserted into the guide groove 24. When the two sealing door bodies 3 move toward each other to close the seal, one end of the plug rod 23 on the fixed tube 22 is driven to slide in the guide groove 24 to drive the flip rod 20 to rotate on the door frame 2, and then drive the protective frame 21 to rotate and support it to the ground, thereby increasing the impact resistance of the sealing door, and when the two sealing door bodies 3 move away from each other and reset, one end of the plug rod 23 is driven to slide in the guide groove 24 in the opposite direction to automatically rotate the protective frame 21 in the opposite direction to be stored in the door frame 2.

[0018] The implementation principle of a sealing door for civil air defense projects in an embodiment of the present invention is as follows: when the sealing door body 3 needs to be closed for protection in an emergency such as floods, first, the motor 26 is started to drive the bidirectional screw 28 to rotate, and the two driving blocks 25 are synchronously moved toward each other on the rotating bidirectional screw 28 to drive the two sealing door bodies 3 to move toward each other and close in the door frame 2, and the two sealing door bodies 3 drive the through rod 9 to slide in the guide groove 8 when moving, and before the through rod 9 pushes the blocking plate 6, the two sealing door bodies 3 squeeze the first inclined portion 15 and the second inclined portion 19 of the first blocking bar 16 and the second blocking bar 17 respectively, and push the first blocking bar 16 and the second blocking bar 17 to move out from above the blocking plate 6 respectively, and then the sealing door The main body 3 drives the through rod 9 to squeeze the inclined surface in the guide groove 8, pushing the blocking plate 6 out of the second groove 5 of the door frame 2. Before the two sealed door main bodies 3 are closed, the blocking plate 6 is lifted to play a preliminary and timely blocking and protective role against floods, and the upward movement of the blocking plate 6 pushes the baffle 11 to move upward in the third groove 12, squeezing the first spring 10 to compress. After the blocking plate 6 is lifted, the two sealed door main bodies 3 continue to move and close to play a role of safe sealing protection, and the movement of the sealed door main body 3 will drive one end of the plug rod 23 on the fixed tube 22 to slide in the guide groove 24, driving the flip rod 20 to rotate, thereby rotating and supporting the protection frame 21 in the door frame 2 to the ground, so as to increase the impact resistance of the sealed door, with a simple structure and practical functions.

[0019] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed door for civil air defense projects, comprising a mounting frame (1), a door frame (2) and a sealed door body (3), characterized in that: The door frame (2) is welded with a mounting frame (1), an opening is provided in the middle of the rear side surface of the door frame (2), a second groove (5) is provided on the lower inner wall of the door frame (2), a sealed door body (3) is movably inserted into both sides of the second groove (5), a first groove (4) is provided in the middle of the lower sides of the two sealed door bodies (3), an automatic blocking structure is provided in the second groove (5), a driving structure is provided in the middle of the upper side of the door frame (2), supporting and protective structures are provided on both sides of the door frame (2), a first shielding structure is provided on the rear side of the lower inner wall of the door frame (2), a second shielding structure is provided on the front side of the lower inner wall of the door frame (2), and a third shielding structure is provided on both sides of the inner wall of the first groove (4); The automatic blocking structure comprises a blocking plate (6) movably inserted into the first groove (4) and the second groove (5); two guide columns (7) are connected between the upper inner wall of the door frame (2) and the lower groove wall of the second groove (5); the two guide columns (7) are distributed on both sides of the door frame (2); through holes for the guide columns (7) to movably pass through are provided near both ends of the blocking plate (6); a guide groove (8) is provided in the middle of the blocking plate (6); the two ends of the guide groove (8) are in a "Z" shape; the middle of the guide groove (8) is in a straight groove shape; a through rod (9) is connected between the front and rear groove walls of the first groove (4); the two through rods (9) movably pass through the two ends of the guide groove (8).

2. A sealed door for civil air defense engineering according to claim 1, characterized in that: The third shielding structure comprises a third groove (12) formed on both sides of the upper groove wall of the first groove (4), a baffle (11) being movably inserted into each of the two third grooves (12), the bottom end of the baffle (11) being pressed against the blocking plate (6), a vertical rod (13) being connected to the top groove wall of the third groove (12), the bottom end of the vertical rod (13) being movably inserted into a through hole formed in the middle of the upper part of the baffle (11), a first spring (10) being sleeved on the vertical rod (13), the two ends of the first spring (10) being respectively connected to the baffle (11) and the upper groove wall of the third groove (12).

3. The sealed door for civil air defense engineering according to claim 1, characterized in that: The first shielding structure comprises a first slide groove (14) at the bottom ends of two side surfaces of an upper opening of the door frame (2), a first stop bar (16) being slidably arranged in the two first slide grooves (14), a first inclined portion (15) being arranged on both end surfaces of the first stop bar (16), the first inclined portion (15) being an inclined surface, the first stop bar (16) extending to the upper side of the blocking plate (6), and a second spring being connected between the first stop bar (16) and the rear side groove wall of the first slide groove (14).

4. The sealed door for civil air defense engineering according to claim 1, characterized in that: The second shielding structure comprises a second slide groove provided at the bottom end of the front side of the inner wall on both sides of the door frame (2); a second stop bar (17) is slidably arranged between the two second slide grooves; the second stop bar (17) extends to the blocking plate (6); a fourth groove (18) is provided on the rear side of the second stop bar (17) at the position of the two sealing door bodies (3); a second inclined portion (19) is provided on a groove wall on one side of the two fourth grooves (18) close to each other; the second inclined portion (19) is an inclined surface; and a third spring is connected between the two ends of the second stop bar (17) and the front groove wall of the fourth groove (18).

5. The sealed door for civil air defense engineering according to claim 1, characterized in that: The supporting protection structure comprises protection frames (21) arranged on both sides of the door frame (2) near the top, a flip rod (20) fixedly passing through the bottom end of the protection frame (21), one end of the flip rod (20) being rotatably connected to the side inner wall of the door frame (2), and a driving structure being arranged on both of the two sealed door bodies (3).

6. A sealed door for civil air defense engineering according to claim 5, characterized in that: The driving structure comprises a fixed tube (22) connected to a side of the two sealing door bodies (3) away from each other and located at the position of the flip rod (20), the flip rod (20) being movable through the fixed tube (22), the sealing door body (3) being provided with a slot for the flip rod (20) to be movably inserted therein, an insertion rod (23) fixedly passing through the fixed tube (22), a guide groove (24) being provided on the flip rod (20), the guide groove (24) being in a half-turn spiral shape on the flip rod (20), and one end of the insertion rod (23) being movably inserted into the guide groove (24).

7. The sealed door for civil air defense engineering according to claim 1, characterized in that: The driving structure comprises a fifth groove (27) provided in the middle of the door frame (2), the fifth groove (27) being in communication with the interior of the door frame (2), a driving block (25) being connected to one side of the two sealed door bodies (3) close to each other, the driving block (25) being movably inserted into the fifth groove (27), a motor (26) being mounted on a groove wall at one end of the fifth groove (27), a bidirectional screw (28) being connected to one end of an output shaft of the motor (26), the left and right sections of the bidirectional screw (28) having threads in opposite directions, and the two driving blocks (25) being provided with a thread groove for the bidirectional screw (28) to pass through.

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