Civil air defense door with good leakproofness

Abstract

The utility model relates to the technical field of civil air defense doors, and discloses a civil air defense door with good leakproofness, which comprises a door frame, a civil air defense door body and a civil air defense door hole, the door frame is fixedly arranged in the civil air defense door hole, the front side of the civil air defense door body is fixedly connected with an inner door, the civil air defense door body and the inner door are matched with the door frame, and the door frame is fixedly connected with the civil air defense door body. A rubber ring is fixedly connected to the outer wall of the inner door, a plurality of glue injection holes are formed in the inner wall of the door frame, and an annular groove is formed in the outer wall of the door frame. Through the arrangement of the inner door, the inner door can enter the door frame when the civil air defense door body is closed, the rubber ring is tightly attached to the front side of the door frame, the leakproofness between the civil air defense door body and the door frame is guaranteed, sealant is injected into the sealant injection hole, the sealant flows into the annular groove, and therefore the sealing performance of the civil air defense door is improved. The gap between the door frame and the door hole of the civil air defense door can be conveniently sealed, the leakproofness between the door frame and the door hole of the civil air defense door is guaranteed, and the civil air defense door has good leakproofness.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors, in particular to a civil air defense door with good airtightness. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. There are distinct classifications of civil defense doors, including ordinary single-leaf and double-leaf protective closed doors and closed doors, movable threshold single-leaf and double-leaf protective closed doors and closed doors, and other civil defense equipment.

[0003] The patent document with the published announcement number CN218991382U discloses a civil air defense door with good sealing effect. This published patent document arranges a door frame, an inner edge, a high-temperature resistant elastic sealing gasket, a T-slot, a screw rod, a moving block, a connecting shaft, a door body and a servo motor. The door body is conveniently rotated and overlapped on the inner edge through the connecting shaft. When the door body is parallel to the inner edge, the screw rod is driven to rotate by the servo motor, and then the door body is moved closer to the inner edge, and then the door body squeezes the high-temperature resistant elastic sealing gasket, thereby further improving the sealing of the connection between the door body and the inner edge, thereby preventing external smoke from entering the room through the gap to cause harm to the trapped personnel when a fire occurs, and further improving the superiority of the use of the civil air defense door; however, the above-mentioned published patent document can only guarantee the sealing between the door frame and the door body. After installation, the outer wall of the door frame is not completely flush with the door hole of the civil air defense door, and there is a gap, resulting in poor overall sealing of the civil air defense door. Utility Model Content

[0004] The purpose of the utility model is to provide a human defense door with good airtightness, which solves the problems raised in the background technology.

[0005] An embodiment of the present application provides a civil defense door with good airtightness, including a door frame, a civil defense door body and a door hole of the civil defense door, the door frame is fixedly installed inside the door hole of the civil defense door, the front side of the civil defense door body is fixedly connected to an inner door, the civil defense door body and the inner door are all adapted to the door frame, the outer wall of the inner door is fixedly connected to a rubber ring, the inner wall of the door frame is provided with a plurality of glue injection holes, and the outer wall of the door frame is provided with an annular groove, each of the glue injection holes is connected to the annular groove, and a matching plug is provided on one side of the glue injection hole on the inner wall of the door frame.

[0006] By adopting the above-mentioned technical scheme, the inner door can be made to enter the interior of the door frame when the door body of the civil air defense door is closed, and the rubber ring can be made to stick to the front side of the door frame to ensure the airtightness between the door body of the civil air defense door and the door frame, and sealant is injected into the injection hole to make the sealant flow into the annular groove to ensure the airtightness between the door frame and the door hole of the civil air defense door.

[0007] Optionally, the top and bottom of the door frame are fixedly connected to a fixing ring, the rear side of the civil defense door body is fixedly connected to a vertical square sleeve, a screw is rotatably installed inside the vertical square sleeve, and a rotating shaft passes through the middle of the rear side of the vertical square sleeve, the front end of the rotating shaft is fixedly connected to bevel gear 1, the middle outer wall of the screw is fixedly connected to bevel gear 2, and bevel gear 1 is meshingly connected with bevel gear 2, fixing rods are symmetrically arranged on the upper and lower sides of the interior of the vertical square sleeve, the fixing rods are slidably connected to the vertical square sleeve, and adjacent sides of the two fixing rods are provided with threaded grooves, the outer walls of the upper and lower ends of the screw are provided with opposite threads, and the upper and lower ends of the screw are respectively located in two matching threaded grooves, and the fixing rod is adapted to the fixing ring.

[0008] By adopting the above technical solution, the rotating shaft drives bevel gear one to rotate, and the meshing connection between bevel gear one and bevel gear two can drive the lead screw to rotate. The lead screw can drive the two fixed rods to move in opposite directions, and the fixed rods are passed through the corresponding fixed rings to increase the stability of the civil defense door after the door body is closed.

[0009] Optionally, two hinges are provided between the door frame and the door body of the civil air defense door, and the door frame and the door body of the civil air defense door are rotatably connected via the hinges.

[0010] By adopting the above technical solution, the rotation of the door body of the civil air defense door is facilitated, and the opening and closing of the door body of the civil air defense door is facilitated.

[0011] Optionally, a mounting piece is fixedly connected to the outer wall of the door frame, and the mounting piece is connected to the wall at the edge of the door hole of the civil air defense door by bolts.

[0012] By adopting the above technical solution, multiple mounting parts increase the stability of the door frame installed in the door hole of the civil air defense door.

[0013] Optionally, a handwheel is fixedly mounted on the rear end of the rotating shaft.

[0014] By adopting the above technical solution, it is convenient to rotate the rotating shaft.

[0015] Optionally, the rotating shaft is connected to the vertical square sleeve via a bearing.

[0016] By adopting the above technical solution, the stability of the rotation of the shaft is increased.

[0017] Optionally, two rings are fixedly mounted on the inner wall of the vertical square sleeve, the lead screw passes through the two rings, and the lead screw and the rings are connected via bearings.

[0018] By adopting the above technical solution, the stability of the screw rotation is increased.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] 1. Through the setting of the inner door, the inner door can enter the interior of the door frame when the door body of the civil air defense door is closed, and the rubber ring can be tightly attached to the front side of the door frame to ensure the airtightness between the door body of the civil air defense door and the door frame. By injecting sealant into the glue injection hole, the sealant flows into the annular groove, which is convenient for sealing the gap between the door frame and the door hole of the civil air defense door, ensuring the airtightness between the door frame and the door hole of the civil air defense door, so that the civil air defense door has good airtightness.

[0021] 2. The lead screw can be driven to rotate through the vertical square sleeve, the rotating shaft, the bevel gear one and the bevel gear two. Since the outer walls of the upper and lower ends of the lead screw are provided with opposite threads, the two fixed rods can be driven to move in opposite directions. When the civil air defense door body is closed, the fixed rods can be passed through the corresponding fixed rings to increase the stability of the civil air defense door body after closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the door frame of the utility model;

[0025] Figure 3 For this utility model Figure 1 A magnified view of middle;

[0026] Figure 4 For this utility model Figure 2 Enlarged view of middle B;

[0027] Figure 5 This is a rear view of the door body of the civil air defense door of the utility model;

[0028] Figure 6 It is a cross-sectional view of the vertical square sleeve of the utility model from the side.

[0029] In the figure: 1. door frame; 2. door body of civil air defense door; 3. door hole of civil air defense door; 4. inner door; 5. hinge; 6. glue injection hole; 7. fixing ring; 8. mounting part; 9. rubber ring; 10. annular groove; 11. vertical square sleeve; 12. hand wheel; 13. lead screw; 14. rotating shaft; 15. fixing rod; 16. threaded groove; 17. bevel gear one; 18. bevel gear two; 19. collar. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1-4 The utility model provides a technical solution: comprising a door frame 1, a civil air defense door body 2 and a door hole 3 of the civil air defense door, the door frame 1 is fixedly installed inside the door hole 3 of the civil air defense door, the front side of the door body 2 of the civil air defense door is fixedly connected with an inner door 4, the door body 2 of the civil air defense door and the inner door 4 are both adapted to the door frame 1, the outer wall of the inner door 4 is fixedly connected with a rubber ring 9, the inner wall of the door frame 1 is provided with a plurality of glue injection holes 6, and the outer wall of the door frame 1 is provided with an annular groove 10, each of the glue injection holes 6 is connected with the annular groove 10, and a matching plug is provided on one side of the glue injection hole 6 on the inner wall of the door frame 1;

[0032] In this technical solution, through the setting of the inner door 4, the inner door 4 can enter the interior of the door frame 1 when the civil defense door body 2 is closed, and the rubber ring 9 can be tightly attached to the front side of the door frame 1 to ensure the airtightness between the civil defense door body 2 and the door frame 1, and by injecting sealant into the glue injection hole 6, the sealant flows into the annular groove 10, which is convenient for sealing the gap between the door frame 1 and the door hole 3 of the civil defense door, thereby ensuring the airtightness between the door frame 1 and the door hole 3 of the civil defense door.

[0033] In some technical solutions, such as Figure 2 , Figure 5 and Figure 6 As shown, the top and bottom of the door frame 1 are fixedly connected to a fixing ring 7, the rear side of the civil air defense door body 2 is fixedly connected to a vertical square sleeve 11, a lead screw 13 is rotatably installed inside the vertical square sleeve 11, and a rotating shaft 14 passes through the middle of the rear side of the vertical square sleeve 11, and a bevel gear 17 is fixedly connected to the front end of the rotating shaft 14, and a bevel gear 2 18 is fixedly connected to the middle outer wall of the lead screw 13, and the bevel gear 17 is meshed with the bevel gear 2 18. Fixed rods 15 are symmetrically arranged on the upper and lower sides of the interior of the vertical square sleeve 11, and the fixed rods 15 are slidably connected to the vertical square sleeve 11, and adjacent sides of the two fixed rods 15 are provided with threaded grooves 16, the outer walls of the upper and lower ends of the lead screw 13 are provided with opposite threads, and the upper and lower ends of the lead screw 13 are respectively located in two matching threaded grooves 16, and the fixed rods 15 are adapted to the fixing ring 7.

[0034] When in use, the bevel gear 17 is driven to rotate by rotating the rotating shaft 14. Due to the meshing connection between the bevel gear 17 and the bevel gear 2 18, the lead screw 13 can be driven to rotate. Since the outer walls of the upper and lower ends of the lead screw 13 are provided with opposite threads, the two fixed rods 15 can be driven to move in opposite directions. That is, when the civil defense door body 2 is closed, the fixed rod 15 can be passed through the corresponding fixed ring 7 to increase the stability of the civil defense door body 2 after closing.

[0035] In some technical solutions, such as Figure 1 As shown, two hinges 5 are arranged between the door frame 1 and the door body 2 of the civil air defense door, and the door frame 1 and the door body 2 of the civil air defense door are rotationally connected through the hinges 5.

[0036] When in use, the hinge 5 facilitates the rotation of the door body 2 of the civil air defense door, thereby facilitating the opening and closing of the door body 2 of the civil air defense door.

[0037] In some technical solutions, such as Figure 1 and Figure 2 As shown, a mounting member 8 is fixedly connected to the outer wall of the door frame 1, and the mounting member 8 is connected to the wall at the edge of the door hole 3 of the civil air defense door by bolts.

[0038] When in use, the stability of the door frame 1 installed in the door hole 3 of the civil air defense door is increased by multiple mounting parts 8.

[0039] In some technical solutions, such as Figure 5 and Figure 6 As shown, a hand wheel 12 is fixedly mounted on the rear end of the rotating shaft 14 .

[0040] When in use, the rotating shaft 14 is conveniently rotated by the hand wheel 12 .

[0041] In some technical solutions, such as Figure 6 As shown, the rotating shaft 14 is connected to the vertical square sleeve 11 through a bearing.

[0042] When in use, the stability of the rotation of the rotating shaft 14 is increased.

[0043] In some technical solutions, such as Figure 6 As shown, two collars 19 are fixedly mounted on the inner wall of the vertical square sleeve 11, the lead screw 13 passes through the two collars 19, and the lead screw 13 and the collars 19 are connected via bearings.

[0044] When in use, the stability of the rotation of the lead screw 13 is increased.

[0045] Working principle: During use, first inject sealant into the injection hole 6 to allow the sealant to flow into the annular groove 10. After the sealant is dry, the gap between the door frame 1 and the door hole 3 of the civil defense door can be sealed to ensure the airtightness between the door frame 1 and the door hole 3 of the civil defense door. When closing the civil defense door body 2, the inner door 4 enters the interior of the door frame 1, and the rubber ring 9 is tightly attached to the front side of the door frame 1 to ensure the airtightness between the door body 2 and the door frame 1. When the civil defense door body 2 is closed, the rotating shaft 14 drives the bevel gear 17 to rotate. Due to the meshing connection between the bevel gear 17 and the bevel gear 2 18, the lead screw 13 can be driven to rotate. Since the outer walls of the upper and lower ends of the lead screw 13 are provided with opposite threads, the two fixed rods 15 can be driven to move in opposite directions. When the civil defense door body 2 is closed, the fixed rod 15 can be passed through the corresponding fixed ring 7 to increase the stability of the civil defense door body 2 after closing.

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A civil air defense door with good airtightness, comprising a door frame (1), a civil air defense door body (2) and a civil air defense door hole (3), characterized in that: The door frame (1) is fixedly installed inside the door hole (3) of the civil air defense door; the front side of the door body (2) of the civil air defense door is fixedly connected to the inner door (4); the door body (2) of the civil air defense door and the inner door (4) are both compatible with the door frame (1); the outer wall of the inner door (4) is fixedly connected to a rubber ring (9); the inner wall of the door frame (1) is provided with a plurality of glue injection holes (6); and the outer wall of the door frame (1) is provided with an annular groove (10); each of the glue injection holes (6) is connected to the annular groove (10); and a matching plug is provided on one side of the glue injection hole (6) on the inner wall of the door frame (1).

2. A civil airtight door according to claim 1, characterized in that: The top and bottom of the door frame (1) are fixedly connected to fixing rings (7); the rear side of the civil air defense door body (2) is fixedly connected to a vertical square sleeve (11); a lead screw (13) is rotatably mounted inside the vertical square sleeve (11); a rotating shaft (14) passes through the middle of the rear side of the vertical square sleeve (11); a bevel gear 1 (17) is fixedly connected to the front end of the rotating shaft (14); a bevel gear 2 (18) is fixedly connected to the middle outer wall of the lead screw (13); the bevel gear 1 (17) and the bevel gear 2 (18) are ... Gear 2 (18) is meshedly connected, and fixed rods (15) are symmetrically arranged on the upper and lower sides of the vertical square sleeve (11), and the fixed rods (15) are slidably connected to the vertical square sleeve (11), and adjacent sides of the two fixed rods (15) are provided with thread grooves (16), the outer walls of the upper and lower ends of the lead screw (13) are provided with opposite threads, and the upper and lower ends of the lead screw (13) are respectively located in two matching thread grooves (16), and the fixed rods (15) are adapted to the fixed ring (7).

3. The airtight civil defense door according to claim 1, characterized in that: Two hinges (5) are arranged between the door frame (1) and the door body (2) of the civil air defense door, and the door frame (1) and the door body (2) of the civil air defense door are rotatably connected via the hinges (5).

4. The airtight civil defense door according to claim 1, characterized in that: The outer wall of the door frame (1) is fixedly connected with a mounting member (8), and the mounting member (8) is connected to the wall at the edge of the door hole (3) of the civil air defense door by means of bolts.

5. The airtight civil defense door according to claim 2, characterized in that: A hand wheel (12) is fixedly mounted on the rear end of the rotating shaft (14).

6. The airtight civil defense door according to claim 2, characterized in that: The rotating shaft (14) is connected to the vertical square sleeve (11) via a bearing.

7. The airtight civil defense door according to claim 2, characterized in that: Two sleeve rings (19) are fixedly mounted on the inner wall of the vertical square sleeve (11), the lead screw (13) passes through the two sleeve rings (19), and the lead screw (13) and the sleeve rings (19) are connected via bearings.

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