Sliding type civil air defense door

Abstract

The utility model discloses a sliding type civil air defense door which comprises two door bodies which can slide to abut against and be locked. The roller is arranged at the bottom of the door body and is connected with the rotating shaft; the connecting plate slides in the door body, and the bottom of the connecting plate is hinged to the rotating shaft; a circular groove is formed between the swing rod and the door body, and the swing rod is in bearing connection with the door body and penetrates through the door body to be hinged to one side of the connecting plate; when the swing rod swings, the connecting plate is driven to move upwards or downwards, the idler wheels hinged to the connecting plate are driven to turn over towards the inner side / the outer side, and the sliding mode between the door body and the ground is changed between rolling and sliding. The sliding type civil air defense door has the advantages that an original hinge column matched rotation mode is changed into a roller sliding mode, the pushing difficulty is reduced, and the purpose of rapid closing is achieved.

Description

Technical Field

[0001] The utility model relates to a sliding type civil air defense door. Background Art

[0002] Civil defense doors are a type of security door inside a building, with the main function of fire prevention and theft prevention. They are usually made of fire-resistant materials and solid structures to ensure effective protection in the event of a fire or intrusion. These doors play an important role in the emergency evacuation and safety management of buildings, effectively controlling the flow of people and providing safe escape routes.

[0003] Existing civil air defense doors are basically single or double doors that are fixed to the wall through hinged columns so that the civil air defense doors can be flipped open or closed. However, when the civil air defense door to be used is large, and the civil air defense door is usually not used for a long time, the hinged position is in a long-term unused state, which is prone to rust. In addition, the heavy civil air defense door makes it difficult to push the civil air defense door to rotate, making it difficult to quickly close the civil air defense door in an emergency, causing safety hazards. Utility Model Content

[0004] The utility model aims to provide a sliding civil air defense door, which transforms the original hinged column coordinated rotation mode into a roller sliding mode, thereby reducing the difficulty of pushing and achieving the purpose of rapid closing.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A sliding civil air defense door comprises: a door body, the door body is provided with two leaves which can slide to abut and lock; a roller and a rotating shaft, the roller is arranged at the bottom of the door body and connected to the rotating shaft; a connecting plate, which slides in the door body and is hinged to the rotating shaft at the bottom; a swing rod, which is provided with a circular groove between the door body and is connected to the door body bearing, and passes through the door body and is hinged to one side of the connecting plate; when the swing rod swings, it drives the connecting plate to move up or down, and drives the roller hinged to the connecting plate to flip inward / outward, so that the sliding mode between the door body and the ground is changed between rolling and sliding.

[0007] The utility model is further configured as follows: the bottom of the connecting plate corresponding to the rotating shaft is configured as a hemispherical shape, and the bottom of the connecting plate is provided with a positioning groove corresponding to the end of the rotating shaft.

[0008] The utility model is further configured as follows: the rocker arm is connected to a driving shaft, the driving shaft passes through the door body and is connected to a lifting plate, the lifting plate is arranged at the edge of the driving shaft, a positioning block is hinged on the top of the lifting plate, the positioning block is fixedly connected to the connecting plate, and the movement of the lifting plate drives the positioning block to connect to the connecting plate and move up and down.

[0009] The utility model is further configured as follows: a mounting groove is arranged at the bottom of the door body, and the mounting groove is a space provided for the roller and capable of being turned over by the roller.

[0010] The utility model is further configured as follows: a plurality of matching grooves are arranged at the bottom of the connecting plate, two fixing frames abutting against each other and fixedly connected to the connecting plate are arranged in the matching grooves, the fixing frames are hinged to the rotating shaft, and the rotating shaft and the rolling path are connected by a bearing.

[0011] In summary, the utility model has the following beneficial effects: this sliding-type civil air defense door transforms the original hinged column coordinated rotation mode into a roller sliding mode, thereby reducing the difficulty of pushing and achieving the purpose of rapid closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment;

[0013] Figure 2 It is a bottom view structural schematic diagram of an embodiment;

[0014] Figure 3 for Figure 2 A magnified image of area A;

[0015] Figure 4 is a side view of an embodiment;

[0016] Figure 5 It is a partial schematic diagram of an exploded view of an embodiment.

[0017] Figure numerals: 1. sliding track; 2. door body; 3. handle; 4. sliding groove; 5. connecting plate; 6. mounting groove; 7. matching groove; 8. fixing frame; 9. rotating shaft; 10. roller; 11. positioning groove; 12. rocker arm; 13. driving shaft; 14. circular groove; 15. lifting plate; 16. positioning block; 17. bearing seat. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0020] In the description of the present utility model, "multiple" means two or more than two, unless otherwise clearly specified and specifically defined. In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 As shown, a sliding type civil air defense door comprises a sliding track 1 connected to the top of a wall. Two door bodies 2 are slidingly arranged in the sliding track 1. A handle 3 is arranged at a position where the door bodies 2 are close to each other. When the two door bodies 2 abut against each other, the handle 3 is turned so that the two door bodies 2 are fixed by a pin shaft or other locking methods, thereby eliminating external dangers. This is a prior art, so it is not repeated.

[0023] The core technical solution of this application is as follows:

[0024] like Figure 2 , Figure 3 , Figure 4 As shown, a sliding groove 4 is provided in the middle of the door body 2. A connecting plate 5 is slidingly provided in the sliding groove 4. Correspondingly, a mounting groove 6 is provided at one end of the bottom of the door body 2 corresponding to the bottom of the connecting plate 5. A plurality of matching grooves 7 are provided at the bottom of the connecting plate 5. Two fixing frames 8 are provided in the matching groove 7, which are abutted against each other and fixedly connected to the connecting plate 5. The fixing frame 8 is hinged with a rotating shaft 9. A roller 10 is connected to a bearing at one end of the rotating shaft 9. Among them, the above-mentioned rollers 10, rotating shafts 9, fixing frames 8 and matching grooves 7 are provided in multiple groups and are evenly arranged in the mounting groove 6.

[0025] As mentioned above, when the door body 2 needs to be pushed to move, a thrust is applied to one side of the door body 2. Under the action of the roller 10, the friction between the door body 2 and the ground is reduced, so that the door body 2 can be slid more easily, so that the two door bodies 2 are abutted and locked.

[0026] Optimally, the bottom of the rotating shaft 9 corresponding to the connecting plate 5 is set to be hemispherical. The bottom of the connecting plate 5 is set to a positioning groove 11 corresponding to the rotating shaft 9 set at the end hemispherical. In the initial state, as shown in the figure, the roller 10 abuts against the ground. At this time, the end of the rotating shaft 9 cooperates with the positioning groove 11 to improve the stability of the installation of the roller 10, thereby facilitating pushing.

[0027] like Figure 5 As shown, in an optimized manner, a swing arm 12 is provided on one side of the door body 2 near the bottom. The swing arm 12 is fixedly connected with a drive shaft 13. The drive shaft 13 is connected to the door body 2 through a bearing seat 17. Correspondingly, a circular groove 14 connected to the internal sliding groove 4 is provided at the position of the door body 2 corresponding to the bearing seat 17. Among them, the drive shaft 13 passes through the bearing seat 17 and is connected with a lifting plate 15. One end of the lifting plate 15 is arranged at the edge of the drive shaft 13. When the drive shaft 13 rotates clockwise in the state shown in the figure, it can drive the lifting plate 15 to rise in an arc.

[0028] Correspondingly, a positioning block 16 is hinged on the top of the lifting plate 15 . The positioning block 16 is fixedly connected to the connecting plate 5 .

[0029] As mentioned above, when the door body 2 is pushed to move toward each other until it abuts, the door body 2 is locked, and then the swing rod 12 is rotated clockwise, and the swing rod 12 rotates to drive the lifting plate 15 to rotate clockwise, and then drives the positioning block 16 abutting against the lifting plate 15 to rise, and finally drives the connecting plate 5 to rise. When the connecting plate 5 rises, the positioning groove 11 is disengaged from the hemispherical end of the rotating shaft 9, so that the rotating shaft 9 rotates toward each other (the rotating shaft 9 is hinged to the fixing frame 8, and drives the rotating shaft 9 to rotate when the fixing frame 8 moves up), and the roller 10 in contact with the ground swings inward and makes the roller 10 horizontally placed on the ground. At this time, the bottom of the door body 2 changes from a rolling sliding mode to a sliding sliding mode in contact with the ground, which increases the friction between the door body 2 and the ground. In the case of locking the door body 2, the positioning stability of the door body 2 is further improved to prevent the door body 2 from opening under the action of external force. As mentioned above, when the roller 10 is placed horizontally between the roller 10 and the ground, that is, at 0°, the top of the rotating shaft 9 abuts against the bottom of the connecting plate 5, locking the position of the connecting plate 5 to prevent the connecting plate 5 from returning to its original position and moving downward.

[0030] After the external danger is eliminated, a large downward pressure is applied to the swing rod 12, so that the swing rod 12 swings, the connecting plate 5 moves downward to reset, and the lock is released, so that the door bodies 2 can be separated from each other.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A sliding type civil air defense door, Its characteristics are: include: The door body (2) is provided with two leaves which can be slidably moved to abut against each other and locked; A roller (10) and a rotating shaft (9), wherein the roller (10) is arranged at the bottom of the door body (2) and connected to the rotating shaft (9); A connecting plate (5) is slidably mounted in the door body (2), and the bottom of the connecting plate is hingedly connected to the rotating shaft (9); A swing rod (12) is provided with a circular groove (14) between the swing rod and the door body (2) and is connected to the bearing of the door body (2), passes through the door body (2) and is hinged to one side of the connecting plate (5); When the swing rod (12) swings, it drives the connecting plate (5) to move up or down, driving the roller (10) hinged to the connecting plate (5) to flip inward / outward, so that the sliding mode between the door body (2) and the ground is changed between rolling and sliding.

2. A sliding civil air defense door according to claim 1, Its characteristics are: The bottom of the rotating shaft (9) corresponding to the connecting plate (5) is configured to be hemispherical, and the bottom of the connecting plate (5) is provided with a positioning groove (11) corresponding to the end of the rotating shaft (9).

3. A sliding civil air defense door according to claim 2, Its characteristics are: The swing arm (12) is connected to a driving shaft (13), and the driving shaft (13) passes through the door body (2) and is connected to a lifting plate (15). The lifting plate (15) is arranged at the edge of the driving shaft (13). A positioning block (16) is hinged on the top of the lifting plate (15). The positioning block (16) is fixedly connected to the connecting plate (5). The movement of the lifting plate (15) drives the positioning block (16) to connect to the connecting plate (5) and move up and down.

4. A sliding civil air defense door according to claim 3, Its characteristics are: The bottom of the door body (2) is provided with a mounting groove (6), and the mounting groove (6) is a space provided for the roller (10) to allow the roller (10) to flip.

5. A sliding civil air defense door according to claim 4, Its characteristics are: The bottom of the connecting plate (5) is provided with a plurality of matching grooves (7), and two fixing frames (8) abutting against each other and fixedly connected to the connecting plate (5) are provided in the matching grooves (7); the fixing frames (8) are hinged to the rotating shaft (9), and the rotating shaft (9) is bearing-connected to the rolling path.

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