A splicable civil air defense door

Abstract

The utility model relates to the technical field of civil air defence door, concretely is a kind of splicing civil air defence door, including civil air defence door main part, civil air defence door main part has two inner cavities with one side opening, the inside of two inner cavities is clamped with door panel, and the both ends of two door panels are fixedly connected with two lugs;And clamping mechanism, clamping mechanism includes two first clamping blocks, the side of two door panels is all set with clamping groove two, the inside of clamping groove two is clamped with the side of first clamping block, the utility model is separated into main body and the door panel of separable by the civil air defence door, realize split transport, reduce transportation difficulty, subsequently utilize the cooperation of lug and groove, the clamping block mechanism of stud drive and the multiple clamping mode of spring reset, both can ensure that the flexible and convenient of splicing process, can also enhance the structural stability after door body splicing, significantly improve assembly efficiency.

Description

Technical Field

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

[0002] Civil defense doors are the entrances and exits of civil air defense projects. They are not only sturdy and heavy in appearance, but also play a vital protective role in critical moments. At the same time, civil defense doors can effectively isolate the spread of harmful substances such as smoke and toxic gases, protecting the lives of personnel.

[0003] In actual use, since air defense doors are usually molded as a whole or assembled with bolts to facilitate the handling of air defense doors, the bolts are prone to rusting or loosening over time, making it impossible to stably and reliably assemble the air defense doors, and also affecting the assembly efficiency of the air defense doors. Utility Model Content

[0004] The purpose of this invention is to provide a modular air defense door to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A modular air defense door includes a main body with two cavities open on one side, each cavity containing a door panel, and two protrusions fixedly connected to both ends of the door panels; and a clamping mechanism including two first clamping blocks, each door panel having a second clamping groove on one side, one side of the first clamping block being clamped inside the second clamping groove, a round rod fixedly connected inside the main body, two second clamping blocks slidably connected to the outer surface of the round rod, a connecting spring fixedly connected between the two second clamping blocks, and two first clamping grooves on one side of each door panel, one side of the second clamping block being clamped inside the first clamping groove.

[0007] Preferably, the main body of the air-raid shelter door is internally connected to a double-ended lead screw, and the double-ended lead screw is provided with two lead screw sleeves that are adapted to the double-ended lead screw. One side of each lead screw sleeve is fastened to a first locking block. An operating handwheel is fixedly connected to the outer surface of the double-ended lead screw. A limit rod parallel to the double-ended lead screw is fixedly connected inside the main body of the air-raid shelter door, and the inside of the lead screw sleeve is slidably placed on the outer surface of the limit rod.

[0008] Preferably, one side of the main body of the air-raid shelter door has an array of first grooves, one side of the protrusion is engaged in the first groove, a fixing post is fixedly connected inside the first groove, one side of the protrusion has an embedding groove, one side of the fixing post is engaged in the embedding groove, and one side of the main body of the air-raid shelter door has an array of second grooves.

[0009] Preferably, a rotating plate is rotatably connected inside the second groove, and square slots are opened on both sides of the two door panels. One side of the rotating plate is snapped into the inside of the square slot, and two second bolts are threaded to the outside of the two door panels. One side of the second bolt passes through the door panel and extends into the inside of the rotating plate.

[0010] Preferably, the inner sides of both door panels are connected with circular seats in an array, and the interior of both cavities is provided with circular grooves. One side of the circular seat is snapped into the interior of the circular groove. A protective box is fixedly connected to one side of the main body of the air-raid shelter door, and a pull-out plate is slidably snapped into the upper side of the protective box.

[0011] Preferably, one side of each of the two second locking blocks is provided with a through internal thread groove, the internal thread of which is connected to a first bolt, and one end of the main body of the air-raid shelter door is fixedly connected to a frame plate, and the inside of the frame plate is fixedly connected to a cross plate.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model divides the air defense door into a main body and a separable door panel, enabling separate handling and reducing transportation difficulty. Then, by using the cooperation of protrusions and grooves, the locking mechanism driven by double-headed screws, and the multiple locking methods of spring return, it can not only ensure the flexibility and convenience of the splicing process, but also enhance the structural stability of the door after splicing, and significantly improve the assembly efficiency.

[0014] 2. This utility model adopts a secondary positioning of a round seat and a round groove, a locking structure of a rotating plate and a square groove, and combines a protective box to seal key locking components to prevent misoperation. At the same time, all locking mechanisms are built-in and cannot be disassembled separately, which not only avoids the loss of parts, but also improves the overall protection performance and ensures the reliability of the air defense door for long-term use. Attached Figure Description

[0015] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a utility model Figure 1 A schematic diagram of the installation of the first groove and the fixing post;

[0018] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of the first card block and the first card block;

[0019] Figure 4This is a utility model Figure 1 Structural diagram of the middle frame plate and the frame plate;

[0020] Figure 5 This is a utility model Figure 1 A schematic diagram of the installation of the second groove and the rotating plate;

[0021] Figure 6 This is a utility model Figure 5 Structural diagram of the middle door panel, protrusion, and round seat;

[0022] The attached figures are labeled as follows:

[0023] 1. Main body of the air-raid shelter door; 2. Inner cavity; 3. Door panel; 4. Protrusion; 5. First groove; 6. Fixing post; 7. Double-ended lead screw; 8. Lead screw sleeve; 9. First locking block; 10. Limiting rod; 11. Operating handwheel; 12. Round rod; 13. Second locking block; 14. Connecting spring; 15. Internal thread groove; 16. First bolt; 17. Second groove; 18. Rotating plate; 19. Second bolt; 20. Square groove; 21. Frame plate; 22. Cross plate; 23. Locking groove one; 24. Locking groove two; 25. Embedded groove; 26. Round seat; 27. Round groove; 28. Protective box; 29. ​​Pull-out plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 6 As shown, a modular air-raid shelter door includes,

[0026] The main body 1 of the air-raid shelter door has two inner cavities 2 with openings on one side. Door panels 3 are snapped into the interior of each cavity 2. Two protrusions 4 are fixedly connected to both ends of each door panel 3. The protrusions 4 are used to limit and fix the two door panels 3, allowing them to be initially positioned.

[0027] The clamping mechanism includes two first clamping blocks 9. Each of the two door panels 3 has a second clamping groove 24 on one side. One side of the first clamping block 9 is clamped inside the second clamping groove 24. A round rod 12 is fixedly connected inside the body 1 of the air defense door. Two second clamping blocks 13 are slidably connected to the outer surface of the round rod 12. A connecting spring 14 is fixedly connected between the two second clamping blocks 13. Each of the two door panels 3 has two first clamping grooves 23 on one side. One side of the second clamping block 13 is clamped inside the first clamping groove 23.

[0028] The main body 1 of the air-raid shelter door is internally connected to a double-ended lead screw 7. The double-ended lead screw 7 is equipped with two lead screw sleeves 8 that are adapted to the double-ended lead screw 7. One side of each lead screw sleeve 8 is fastened to a first locking block 9. An operating handwheel 11 is fixedly connected to the outer surface of the double-ended lead screw 7. A limiting rod 10 parallel to the double-ended lead screw 7 is fixedly connected inside the main body 1 of the air-raid shelter door. The inside of the lead screw sleeve 8 is slidably placed on the outer surface of the limiting rod 10. Through the setting of the limiting rod 10, the movement trajectory of the two lead screw sleeves 8 can be limited and guided, ensuring that the two first locking blocks 9 can move and adjust smoothly for fixing the door panel 3, which is convenient to use.

[0029] The main body 1 of the air-raid shelter door has an array of first grooves 5 on one side. One side of the protrusion 4 is engaged in the first groove 5. A fixing post 6 is fixedly connected inside the first groove 5. The fixing post 6 can guide the installation of the door panel 3 and assist in the installation of the door panel 3. One side of the protrusion 4 has an embedding groove 25. One side of the fixing post 6 is engaged in the embedding groove 25. The main body 1 of the air-raid shelter door has an array of second grooves 17 on one side.

[0030] The interior of the second groove 17 is rotatably connected to a rotating plate 18. Both sides of the two door panels 3 are provided with square grooves 20. One side of the rotating plate 18 is snapped into the interior of the square groove 20. Both sides of the two door panels 3 are threaded with two second bolts 19. One side of the second bolt 19 passes through the door panel 3 and extends into the interior of the rotating plate 18.

[0031] Both door panels 3 are connected to round seats 26 on their inner sides, and both inner cavities 2 are provided with round grooves 27. One side of the round seat 26 is snapped into the inside of the round groove 27. A protective box 28 is fixedly connected to one side of the main body 1 of the air defense door, and a pull plate 29 is slidably snapped into the upper side of the protective box 28.

[0032] Each of the two second locking blocks 13 has a through internal threaded groove 15 on one side. The internal thread of the internal threaded groove 15 is connected to the first bolt 16. By setting the first bolt 16, the two elastic second locking blocks 13 can move towards each other, moving the two second locking blocks 13 away from the door panel 3. Then, the first bolt 16 is turned to fix the first bolt 16 to the internal threaded groove 15 of the two second locking blocks 13. This can release the restriction on the door panel 3, allowing for flexible loading and unloading of the door panel 3. One end of the main body 1 of the air-raid shelter door is fixedly connected to a frame plate 21. The frame plate 21 is fixedly connected to a cross plate 22. The frame plate 21 and the cross plate 22 can increase the strength of the air-raid shelter door, making the air-raid shelter door safer and more reliable.

[0033] The working principle of the modular air defense door provided by this utility model is as follows:

[0034] By dividing the air-raid shelter door into a main body 1 and two door panels 3, the two can be moved and transported separately without having to be moved together, thus improving the convenience of transporting the air-raid shelter door. Then, the two door panels 3 are snapped into the two inner cavities 2 of the main body 1. At this time, the protrusions 4 on the door panels 3 can be inserted into the first groove 5, and the fixing post 6 will also snap into the first groove 5 of the protrusions 4 for initial positioning of the two door panels 3. Next, the operating handwheel 11 at the double-ended lead screw 7 is rotated, causing the double-ended lead screw 7 to rotate and allowing the two lead screw sleeves 8 to move relative to each other. The mechanism is activated so that the two first locking blocks 9 can be engaged in the slots 24 of the two door panels 3. Then, the two first bolts 16 are turned to move the first bolts 16 away from the internal thread grooves 15 of the second locking blocks 13 and release the restriction on the two second locking blocks 13. At this time, the elastic force of the connecting spring 14 can reset the two second locking blocks 13 and engage in the slots 23 of the two door panels 3. The multi-locking mechanism can flexibly and conveniently splice the air defense door, and also ensure the stability of the air defense door body 1 and door panel 3 when splicing, thus improving the splicing efficiency of the splicable air defense door.

[0035] As the two door panels 3 are installed, the round seat 26 at the door panel 3 will engage with the round groove 27 to further position the door panel 3. Then, the rotating plate 18 will be rotated to engage with the inside of the square groove 20. The second bolt 19 will then be tightened to fix the door panel 3 and the rotating plate 18, so as to further limit the position of the door panel 3 and increase the stability of the door panel 3. Then, the protective box 28 and the pull plate 29 can protect the first locking block 9 and the second locking block 13 to prevent others from operating them by mistake. At the same time, all the parts of the locking mechanism of the air defense door are located inside the air defense door and cannot be disassembled from the air defense door alone, which helps to avoid losing the parts of the locking mechanism.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A splicable civil air defense door, characterized in that: include, The main body (1) of the air-raid shelter door has two inner cavities (2) with openings on one side. Door panels (3) are snapped into the interior of each of the two inner cavities (2). Two protrusions (4) are fixedly connected to both ends of each door panel (3). The clamping mechanism includes two first clamping blocks (9), and two door panels (3) are provided with a second clamping groove (24) on one side. One side of the first clamping block (9) is clamped inside the second clamping groove (24). A round rod (12) is fixedly connected inside the body of the air defense door (1). Two second clamping blocks (13) are slidably connected to the outer surface of the round rod (12). A connecting spring (14) is fixedly connected between the two second clamping blocks (13). Two first clamping grooves (23) are provided on one side of the two door panels (3). One side of the second clamping block (13) is clamped inside the first clamping groove (23).

2. The splicable civil defense door of claim 1, wherein, The main body (1) of the air defense door is internally connected to a double-ended screw (7). The double-ended screw (7) is provided with two screw sleeves (8) that are adapted to the double-ended screw (7). One side of each screw sleeve (8) is fastened with a first locking block (9). An operating handwheel (11) is fixedly connected to the outer surface of the double-ended screw (7). The main body (1) of the air defense door is internally connected to a limiting rod (10) that is parallel to the double-ended screw (7). The inside of the screw sleeve (8) is slidably placed on the outer surface of the limiting rod (10).

3. The modular air-raid shelter door according to claim 1, characterized in that, The main body (1) of the air defense door has an array of first grooves (5) on one side, and one side of the protrusion (4) is engaged in the first groove (5). A fixing post (6) is fixedly connected inside the first groove (5). An embedding groove (25) is provided on one side of the protrusion (4). One side of the fixing post (6) is engaged in the embedding groove (25). The main body (1) of the air defense door has an array of second grooves (17) on one side.

4. A modular air-raid shelter door according to claim 3, characterized in that, The second groove (17) is rotatably connected to a rotating plate (18). Both sides of the two door panels (3) are provided with square grooves (20). One side of the rotating plate (18) is snapped into the inside of the square groove (20). The outer sides of the two door panels (3) are threaded with two second bolts (19). One side of the second bolt (19) passes through the door panel (3) and extends into the inside of the rotating plate (18).

5. A modular air-raid shelter door according to claim 1, characterized in that, Both door panels (3) are connected to round seats (26) in an array on their inner sides. Both inner cavities (2) are provided with round grooves (27). One side of the round seat (26) is snapped into the inside of the round groove (27). A protective box (28) is fixedly connected to one side of the main body (1) of the air defense door. A pull plate (29) is slidably snapped into the upper side of the protective box (28).

6. A modular air-raid shelter door according to claim 1, characterized in that, One side of each of the two second card blocks (13) is provided with a through internal thread groove (15), and the internal thread groove (15) is connected to a first bolt (16). One end of the main body (1) of the air defense door is fixedly connected to a frame plate (21), and the inside of the frame plate (21) is fixedly connected to a cross plate (22).

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