Civil air defense door convenient to close and open

Abstract

The utility model relates to the technical field of civil air defense doors, in particular to a civil air defense door convenient to close and open, which comprises a door frame, an opening and closing mechanism is arranged in the door frame and comprises a rotating motor, an output shaft of the rotating motor is coaxially connected with a first bevel gear, and second bevel gears meshed with the first bevel gear are symmetrically arranged on the upper side and the lower side of the first bevel gear. One end of the second bevel gear is connected with a first threaded rod, the first threaded rod is in threaded connection with a moving plate, the moving plate is slidably connected with the inner wall of the civil air defense door body, and first inserting blocks are symmetrically and fixedly connected to the positions, close to the left side and the right side, of the outer side surface of the moving plate through bolts; one end of the first inserting block penetrates through the outer wall of the civil air defense door body and is in inserting fit with the inner wall of the first inserting groove corresponding to the first inserting block in position. According to the civil air defense door convenient to close and open, the opening and closing mechanism is arranged in the inner cavity of the civil air defense door body, so that the opening and closing mechanism is not prone to damage, the locking firmness of the civil air defense door body during closing is improved, and the safety of the device is improved.

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 that is easy to close and open. Background Art

[0002] Civil defense, also known as civil defense, is an activity in which the government mobilizes and organizes the masses to take measures to prevent air raids, resist disasters and provide relief, implement rescue operations, and prevent and reduce the harm of disasters. Civil defense doors are civil defense protection equipment and are the doors at the entrances and exits of civil defense projects.

[0003] Publication number CN216277554U discloses a novel, easy-to-open and close civil air defense door, comprising a door frame and a main body. The main body is provided with a connecting block, a shaft disposed on the connecting block, the connecting block being rotatably connected to the door frame via the shaft, the main body being hinged to the door frame via the connecting block, a mounting plate disposed on the door frame, a drive device disposed on the mounting plate, a rotating shaft disposed vertically at the output end of the drive device, a support block disposed on the door frame, the free end of the rotating shaft abutting against the support block, a support frame for supporting a connecting arm, a second fixed plate disposed on the main body, a horizontally disposed limit slot disposed on the second fixed plate, an adsorption block slidingly disposed within the limit slot, a first fixed plate disposed on the door frame, an electromagnet disposed on the first fixed plate, the electromagnet being adsorbed and fixed to the adsorption block. This utility model makes opening and closing heavy-duty civil air defense doors more convenient and efficient for users, making it relatively easy to open and close heavy-duty protective doors, facilitating the evacuation of personnel.

[0004] Although this device makes it more convenient and efficient for users to open and close heavy civil defense doors, the opening and closing mechanism of the device is installed on the outside of the civil defense door, which can easily cause damage to the opening and closing mechanism, and the locking firmness is poor when closed, which greatly reduces the safety of the civil defense door. In view of this, we propose a civil defense door that is easy to close and open. Utility Model Content

[0005] The purpose of the present invention is to provide a civil defense door that is easy to close and open, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A civil defense door that is easy to close and open, includes a door frame, an opening and closing mechanism is provided in the door frame, and the opening and closing mechanism includes a rotating motor, the output shaft of the rotating motor is coaxially connected to a first helical gear, and second helical gears meshing with the first helical gear are symmetrically provided on the upper and lower sides of the first helical gear, and the second helical gear and the inner surface of the mounting plate corresponding to its position are rotatably connected through a bearing, one end of the second helical gear is fixedly connected to a first threaded rod by a bolt, one end of the first threaded rod passes through the outer surface of the mounting plate corresponding to its position and is threadedly connected to a movable plate, and the movable plate is slidingly connected to the inner wall of the civil defense door body, and the outer surface of the movable plate near the left and right sides is symmetrically fixedly connected to the first plug block by bolts, and one end of the first plug block passes through the outer wall of the civil defense door body and is plugged into the inner wall of the first slot corresponding to its position.

[0008] Preferably, a mounting opening is provided at the front end of the door frame, an opening is provided on the rear surface of the inner wall of the mounting opening, and a mounting groove is provided on the left surface of the inner wall of the mounting opening.

[0009] Preferably, first slots are symmetrically provided at the top and bottom of the inner wall of the installation opening and near the left and right sides, and a second slot is provided on the right side surface of the inner wall of the installation opening.

[0010] Preferably, a dual-axis motor is fixedly connected to the left side surface of the inner wall of the installation groove by bolts, and two output shafts of the dual-axis motor are coaxially connected to the rotating plate respectively.

[0011] Preferably, a civil defense door body is provided in the mounting opening, and the left side surface of the civil defense door body is fixedly connected to the right side surface of the rotating plate by bolts. The left side surface of the inner wall of the civil defense door body and the position near the upper and lower sides are symmetrically fixedly connected with the mounting plate by bolts.

[0012] Preferably, the right end of the first helical gear is fixedly connected to a threaded sleeve via a bolt, and the threaded sleeve is threadedly connected to the second threaded rod.

[0013] Preferably, the right end of the second threaded rod is fixedly connected to a slider via a bolt, and the top and bottom of the slider are respectively fitted with the inner surfaces of the two mounting plates.

[0014] Preferably, the right side surface of the slider is fixedly connected to a second plug-in block by bolts, and the right end of the second plug-in block passes through the right end of the civil defense door body and is plugged into the inner wall of the second slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The easy-to-close and open civil air defense door has an opening and closing mechanism arranged in the inner cavity of the civil air defense door body, which makes the opening and closing mechanism less susceptible to damage and improves the locking firmness of the civil air defense door body when closed, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of the door frame of the present invention;

[0020] Figure 4 It is a structural diagram of the opening and closing mechanism in the utility model.

[0021] The meaning of each title in the figure is:

[0022] 1. Door frame; 11. Mounting port; 12. Opening; 13. Mounting slot; 14. First slot; 15. Second slot; 16. Dual-axis motor; 17. Rotating plate; 18. Civil air defense door body; 19. Mounting plate;

[0023] 2. Opening and closing mechanism; 21. Rotating motor; 22. First bevel gear; 23. Second bevel gear; 24. First threaded rod; 25. Moving plate; 26. First plug-in block; 27. Screw sleeve; 28. Second threaded rod; 29. Slider; 291. Second plug-in block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-4 , the utility model provides a technical solution:

[0026] A civil defense door that is easy to close and open includes a door frame 1. A mounting opening 11 is provided at the front end of the door frame 1 for installing a civil defense door body 18. An opening 12 is provided on the rear surface of the inner wall of the mounting opening 11. A mounting groove 13 is provided on the left surface of the inner wall of the mounting opening 11 for installing a dual-axis motor 16.

[0027] Specifically, a first slot 14 is symmetrically provided at the top and bottom of the inner wall of the installation opening 11 and near the left and right sides, which is used to cooperate with the first plug block 26 to limit the position of the civil defense door body 18. A second slot 15 is provided on the right side surface of the inner wall of the installation opening 11, which is used to cooperate with the second plug block 291 to limit the position of the civil defense door body 18.

[0028] Furthermore, a dual-axis motor 16 is fixedly connected to the left surface of the inner wall of the mounting groove 13 by bolts, which is used to drive the two rotating plates 17 to rotate in the same direction and at the same speed. The two output shafts of the dual-axis motor 16 are coaxially connected to the rotating plates 17 respectively, and are used to drive the civil defense door body 18 to close and open.

[0029] It should be added that a civil defense door body 18 is provided in the mounting port 11, and the left surface of the civil defense door body 18 is fixedly connected to the right surface of the rotating plate 17 by bolts. The left surface of the inner wall of the civil defense door body 18 and the position near the upper and lower sides are symmetrically fixed with a mounting plate 19 by bolts for installing the second bevel gear 23.

[0030] As a preferred embodiment of this embodiment, an opening and closing mechanism 2 is provided in the door frame 1, and the opening and closing mechanism 2 includes a rotating motor 21 for driving the first bevel gear 22 to rotate. The output shaft of the rotating motor 21 is coaxially connected to the first bevel gear 22 for driving the second bevel gear 23 to rotate.

[0031] Specifically, second bevel gears 23 meshing with the first bevel gear 22 are symmetrically provided on the upper and lower sides thereof. The second bevel gear 23 is rotatably connected to the inner surface of the mounting plate 19 corresponding thereto via a bearing to drive the first threaded rod 24 to rotate.

[0032] Specifically, one end of the second bevel gear 23 is fixedly connected to the first threaded rod 24 by a bolt, which is used to drive the movable plate 25 to move. One end of the first threaded rod 24 passes through the outer surface of the mounting plate 19 corresponding to its position and is threadedly connected to the movable plate 25. The movable plate 25 is slidably connected to the inner wall of the civil defense door body 18, which is used to drive the first plug block 26 to move.

[0033] Specifically, the outer surface of the movable plate 25 is symmetrically fixed with a first plug block 26 near the left and right sides by bolts. One end of the first plug block 26 passes through the outer wall of the civil defense door body 18 and is plugged into the inner wall of the first slot 14 corresponding to its position, and is used to cooperate with the first slot 14 to limit the position of the civil defense door body 18.

[0034] Specifically, the right end of the first bevel gear 22 is fixedly connected to a screw sleeve 27 via a bolt, which is used to drive the second threaded rod 28 to move. The screw sleeve 27 is threadedly connected to the second threaded rod 28, which is used to drive the slider 29 to move.

[0035] Specifically, the right end of the second threaded rod 28 is fixedly connected to a slider 29 by a bolt, which is used to drive the second plug block 291 to move. The top and bottom of the slider 29 are respectively in contact with the inner surfaces of the two mounting plates 19.

[0036] Specifically, the right side surface of the slider 29 is fixedly connected to the second plug block 291 by bolts. The right end of the second plug block 291 passes through the right end of the civil defense door body 18 and is plugged into the inner wall of the second slot 15 to cooperate with the second slot 15 to limit the position of the civil defense door body 18.

[0037] During specific use, when it is necessary to open the civil air defense door body 18, the user first turns on the rotary motor 21, which drives the first bevel gear 22 to rotate, thereby driving the two second bevel gears 23 to rotate, thereby driving the two first threaded rods 24 to rotate, thereby driving the two movable plates 25 to move toward the direction close to the first bevel gear 22, thereby driving the four first plug blocks 26 to move toward the direction close to the first bevel gear 22;

[0038] During this process, the first bevel gear 22 drives the screw sleeve 27 to rotate, thereby driving the second threaded rod 28 to rotate, thereby driving the slider 29 to move leftward, thereby driving the second insert block 291 to move leftward;

[0039] Until the left surface of the slider 29 is in contact with the right end of the screw sleeve 27, the four first plug-in blocks 26 are no longer plugged into the inner wall of the first slot 14 corresponding to their positions, and the second plug-in block 291 is no longer plugged into the inner wall of the second slot 15. Turn on the dual-axis motor 16, and the dual-axis motor 16 drives the two rotating plates 17 to rotate, thereby driving the civil defense door body 18 to open. When the civil defense door body 18 rotates to the specified position, turn off the dual-axis motor 16.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A civil air defense door that is easy to open and close, comprising a door frame (1), characterized in that: The door frame (1) is provided with an opening and closing mechanism (2), and the opening and closing mechanism (2) includes a rotating motor (21), the output shaft of the rotating motor (21) is coaxially connected to a first bevel gear (22), and the first bevel gear (22) is symmetrically provided with a second bevel gear (23) meshing with it on the upper and lower sides, and the second bevel gear (23) and the inner surface of the mounting plate (19) corresponding to its position are rotatably connected through a bearing, and one end of the second bevel gear (23) is fixedly connected to a first threaded rod (24) by a bolt, and one end of the first threaded rod (24) passes through the outer surface of the mounting plate (19) corresponding to its position and is threadedly connected to a movable plate (25), and the movable plate (25) is slidably connected to the inner wall of the civil defense door body (18), and the outer surface of the movable plate (25) near the left and right sides is symmetrically fixedly connected to a first plug block (26) by bolts, and one end of the first plug block (26) passes through the outer wall of the civil defense door body (18) and is plugged into the inner wall of the first slot (14) corresponding to its position.

2. The easy-to-close and open civil air defense door according to claim 1, characterized in that: The front end of the door frame (1) is provided with a mounting opening (11), the rear surface of the inner wall of the mounting opening (11) is provided with an opening (12), and the left surface of the inner wall of the mounting opening (11) is provided with a mounting groove (13).

3. The easy-to-close and open civil air defense door according to claim 2, characterized in that: A first slot (14) is symmetrically provided at the top and bottom of the inner wall of the installation opening (11) and near the left and right sides, and a second slot (15) is provided on the right side surface of the inner wall of the installation opening (11).

4. The easy-to-close and open civil air defense door according to claim 2, characterized in that: A double-shaft motor (16) is fixedly connected to the left side surface of the inner wall of the installation groove (13) by means of bolts, and two output shafts of the double-shaft motor (16) are coaxially connected to a rotating plate (17) respectively.

5. The easy-to-close and open civil air defense door according to claim 2, characterized in that: A civil defense door body (18) is provided in the installation opening (11), and the left surface of the civil defense door body (18) is fixedly connected to the right surface of the rotating plate (17) by bolts, and the left surface of the inner wall of the civil defense door body (18) and the position near the upper and lower sides are symmetrically fixedly connected with the installation plate (19) by bolts.

6. The easy-to-close and open civil air defense door according to claim 1, characterized in that: The right end of the first bevel gear (22) is fixedly connected to a threaded sleeve (27) via a bolt, and the threaded sleeve (27) is threadedly connected to a second threaded rod (28).

7. The easy-to-close and open civil air defense door according to claim 6, characterized in that: The right end of the second threaded rod (28) is fixedly connected to a slider (29) by means of bolts, and the top and bottom of the slider (29) are respectively fitted with the inner surfaces of the two mounting plates (19).

8. The easy-to-close and open civil air defense door according to claim 7, characterized in that: The right side surface of the slider (29) is fixedly connected to a second plug-in block (291) by means of bolts, and the right end of the second plug-in block (291) passes through the right end of the civil air defense door body (18) and is plugged into the inner wall of the second slot (15).

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