Civil air defense door frame convenient to splice

Abstract

The utility model relates to the field of civil air defense engineering, and discloses a civil air defense door frame convenient to splice, which comprises two bottom rods, side rods are abutted against two ends of opposite sides of the two bottom rods, limiting grooves are formed in two ends of each side rod, support rods are fixedly connected to two ends of each bottom rod respectively, clamping grooves are formed in the upper ends of the support rods, and the clamping grooves are clamped in the clamping grooves. The supporting rod is slidably connected into the limiting groove, springs are fixedly connected to the two sides of the interior of the limiting groove, a check block is fixedly connected to the other side of each spring and clamped into the corresponding clamping groove, and telescopic rods are fixedly connected into the springs. The two ends of the telescopic rod are fixedly connected to the opposite sides of the check block and the limiting groove correspondingly, and the two ends of the side rod are rotationally connected with first bolts. According to the civil air defense door frame, through cooperation of the supporting rods, the clamping grooves, the limiting grooves, the springs, the telescopic rods and the check blocks, splicing and installation of the civil air defense door frame are completed, and transportation of the civil air defense door frame is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of civil air defense engineering, in particular to a civil air defense door frame which is easy to splice. Background Art

[0002] Civil defense door frames refer to door frames used in air defense projects or civil defense projects. Their main purpose is to build a safe air defense or civil defense space. Such door frames are usually used in air-raid shelters, underground air-raid rooms, civil defense projects and other places. Their design and manufacture are intended to meet people's needs for finding shelters and refuges in emergency situations.

[0003] After searching, Chinese patent announcement number: CN211422386U discloses a civil air defense door frame, including an upper door frame, two side door frames and a lower door frame, the lower door frame is an underground structure, a movable threshold is detachably connected to the lower door frame, and the two ends of the movable threshold are opposite to the side door frame; a threshold storage fixing structure is provided on the side door frame, and the threshold storage fixing structure includes a fixed sleeve rod that surrounds the movable threshold and a connecting component that connects the fixed sleeve rod, and the connecting component includes a fixed pipe and a pin inserted into the fixed pipe and can close the fixed pipe. The threshold storage fixing structure is arranged on the side door frame, and the threshold storage fixing structure includes a fixed sleeve rod, and the fixed sleeve rod can surround the movable threshold. After the movable threshold is surrounded, the movable threshold is vertically stored in a position close to the side door frame through the connecting component, so that the movable threshold does not need a special storage space after being disassembled, and the movable threshold is at the position of the door frame, and when it is needed, it does not need to be carried over a long distance, which is very convenient to use, and there is no fear of the movable threshold being lost.

[0004] In the above technology, the door frame is easy to install through a fixed structure, but the civil air defense door frame is an integrated structure, which will make the transportation of the civil air defense door frame inconvenient, and no casting structure is set when installing the civil air defense door frame, which will cause the installation of the civil air defense door frame to be unstable. Therefore, a civil air defense door frame that is easy to splice is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a civil air defense door frame that is easy to splice, aiming to improve the problems of inconvenience in transportation caused by the integrated structure of the civil air defense door frame device and unstable fixation caused by the lack of a casting structure in the civil air defense door frame.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical solutions: a civil defense door frame that is easy to splice, comprising two bottom bars, both ends of the two bottom bars are abutted against side bars, and limiting grooves are provided inside the two ends of the side bars, and the two ends of the bottom bars are respectively fixedly connected to support bars, and the upper ends of the support bars are provided with card slots, and the support rods are slidably connected in the limiting grooves, and springs are fixedly connected on both sides of the limiting grooves, and a block is fixedly connected on the other side of the spring, and the block is carded in the card slot, and a telescopic rod is fixedly connected inside the spring, and the two ends of the telescopic rod are respectively fixedly connected to the block and the opposite side of the limiting groove, and the two ends of the side bar are rotatably connected with bolts, and a reinforcement component and a casting component are provided on the separated side of the side bar.

[0007] As a further description of the above technical solution:

[0008] The casting assembly includes a plurality of casting blocks, which are fixedly connected to the side where the two side rods are separated, a through hole is opened on the surface of the casting block, and a thread groove is opened on the side where the casting block and the two side rods are separated, and two bolts are threadedly connected in the thread groove.

[0009] As a further description of the above technical solution:

[0010] The reinforcement assembly includes a plurality of steel rods, the plurality of steel rods are fixedly connected to a side away from the two side rods, and square steels are fixedly connected inside the plurality of steel rods.

[0011] As a further description of the above technical solution:

[0012] The opposite side of the bottom rod and the opposite side of the side rod are both provided with support grooves, and a stop rod is slidably connected between every two of the support grooves.

[0013] As a further description of the above technical solution:

[0014] Both ends of the bottom rod are provided with threaded holes, and the bolts are threadedly connected in the threaded holes of the bottom rod.

[0015] As a further description of the above technical solution:

[0016] The size of the limiting groove matches the size of the supporting rod.

[0017] As a further description of the above technical solution:

[0018] The steel rod is fixed in the middle of the two casting blocks.

[0019] As a further description of the above technical solution:

[0020] The stopper is engaged in the slot.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the side bars are spliced ​​to the two ends of the bottom bar by means of support bars, card slots, limit slots, springs, telescopic bars and blocks. The side bars can be spliced ​​to the two ends of the bottom bar by simply aligning the support bars with the limit slots and inserting them. When transporting the civil air defense door frame, only the separated bottom bar and side bars need to be transported to the construction site, thus realizing the function of convenient transportation.

[0023] 2. In the utility model, through the coordination of casting blocks, bolts, threaded holes, through holes, steel rods and square steels, the four sides of the civil air defense door frame can be better fixed when casting, thereby solving the problem that there are no casting components around the civil air defense door frame, making the installation of the civil air defense door frame unstable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a human air defense door frame that is easy to splice proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a support rod of a civil air defense door frame that is easy to splice, proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of a limit groove of a civil air defense door frame that is easy to splice, proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of a casting assembly structure of a civil air defense door frame that is easy to splice, proposed by the utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Bottom rod; 2. Side rod; 3. Support rod; 4. Slot; 5. Limiting slot; 6. Spring; 7. Telescopic rod; 8. Stopper; 9. Bolt 1; 10. Stopper rod; 11. Support slot; 12. Steel rod; 13. Casting block; 14. Threaded groove; 15. Bolt 2; 16. Through hole; 17. Square steel. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-3 The utility model provides an embodiment of a human-defense door frame that is easy to splice, comprising two bottom bars 1, the two bottom bars 1 are both abutted with side bars 2 at both ends on the opposite sides, and limiting grooves 5 are provided inside the two ends of the side bars 2. The two ends of the bottom bar 1 are respectively fixedly connected to a support rod 3, and a card slot 4 is provided on the upper end of the support rod 3. The support rod 3 is slidably connected in the limiting groove 5. Springs 6 are fixedly connected on both sides of the limiting groove 5, and a stopper 8 is fixedly connected on the other side of the spring 6. The stopper 8 is clamped in the card slot 4. A telescopic rod 7 is fixedly connected inside the spring 6. The two ends of the telescopic rod 7 are respectively fixedly connected to the stopper 8 and the opposite side of the limiting groove 5. Bolts 9 are rotatably connected at both ends of the side bar 2. A reinforcement component and a casting component are provided on the separated side of the side bar 2. Threaded holes are provided at both ends of the bottom bar 1, and a bolt 9 is threadedly connected in the threaded hole of the bottom bar 1. The size of the limiting groove 5 matches the size of the support rod 3, and the stopper 8 is clamped in the card slot 4.

[0033] Specifically, the civil defense door frame consists of two bottom bars 1 and two side bars 2. The two ends of the bottom bar 1 are inclined surfaces, and a support rod 3 is fixed on the top. The two ends of the side bar 2 are inclined surfaces, which are used to form a right angle with the bottom bar 1. Limiting grooves 5 are provided at both ends of the side bar 2, which are used to insert the support rod 3 into the side bar 2. The support rod 3 is provided with a slot 4, and a spring 6 is provided in the limiting groove 5. The spring 6 fixes a stopper 8, which is used to send the stopper 8 into the slot 4 provided on the support rod 3, so that the support rod 3 is inserted into the side bar 2, and then a bolt 9 is rotated into the threaded hole of the bottom bar 1 to strengthen the fixation between the bottom bar 1 and the side bar 2. The reinforcement assembly and the casting assembly are both used to strengthen the connection between the civil defense door frame and the wall.

[0034] Reference Figure 3-4 The casting assembly includes a plurality of casting blocks 13, which are fixedly connected to the side where the two side rods 2 are separated. A through hole 16 is provided on the surface of the casting block 13. A threaded groove 14 is provided on the side where the casting block 13 is separated from the two side rods 2. A bolt 15 is connected to the inner thread of the threaded groove 14. The reinforcement assembly includes a plurality of steel rods 12, which are fixedly connected to the side where the two side rods 2 are separated. A square steel 17 is fixedly connected inside the plurality of steel rods 12. The steel rod 12 is fixedly positioned between the two casting blocks 13.

[0035] Specifically, the casting block 13 is evenly fixed on the side where the two side rods 2 are separated. A through hole 16 is opened in the casting block 13. When casting, the through hole 16 is filled to strengthen the fixation. The casting block 13 is provided with a threaded groove 14, which is used to use a bolt 15 to fix the casting block 13 in the threaded groove 14 on the side where the two side rods 2 are separated. The steel rod 12 is evenly fixed on the side where the two side rods 2 are separated, which is used to connect the steel frame in the wall. There is a square steel 17 in the steel rod 12, which is used to fix the steel rod 12 so that the steel rod 12 is not easily deformed.

[0036] Reference Figure 2A support groove 11 is provided on the opposite side of the bottom rod 1 and the opposite side of the side rod 2, and a stop rod 10 is slidably connected between every two support grooves 11.

[0037] Specifically, the blocking rod 10 is slid into the support groove 11 so that the blocking rod 10 supports the right angle between the bottom rod 1 and the side rod 2 and is not easily deformed during processing.

[0038] Working principle: When the civil air defense door frame needs to be spliced, slide the limiting groove 5 at one end of the side rod 2 into the outer periphery of the support rod 3 on both sides of the bottom rod 1. During installation, the stopper 8 inside the limiting groove 5 will be squeezed into the limiting groove 5 and will not block the sliding of the support rod 3. When the support rod 3 slides to the bottom of the limiting groove 5, the spring 6 will release the tension and slide the stopper 8 into the slot 4 of the support rod 3. The side rod 2 on one side can be spliced ​​successfully. Then screw the bolt 9 into the threaded hole of the bottom rod 1 to reduce the force on the stopper 8. Then install the side rod 2 on the other side in the same way. The two side rods 2 can be spliced ​​successfully. Then use the same method to splice the upper bottom rod 1 to complete the overall splicing of the civil air defense door frame.

[0039] When pouring the civil defense door frame, it is necessary to pour the edge of the civil defense door frame into the wall. First, slide the retaining rod 10 into the support groove 11 to reduce the pressure on the side rod 2 during pouring. When increasing the support space of the civil defense door frame inside the wall, align the threaded groove 14 of the pouring block 13 with the threaded groove 14 of the side rod 2, and connect them through bolts 15. The civil defense door frame can be pulled by the pouring block 13 to improve the stability of the pouring of the civil defense door frame. The steel rod 12 is welded to the steel pipe of the side rod 2 in advance. During pouring, the pouring block 13 and the steel rod 12 are all poured into the wall to strengthen the fixation of the civil defense door frame to the wall.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been 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 make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A civil air defense door frame that is easy to splice, comprising two bottom bars (1), characterized in that: The two bottom bars (1) are both abutted against side bars (2) at both ends of the facing side, and both ends of the side bars (2) are provided with limiting grooves (5). The two ends of the bottom bars (1) are respectively fixedly connected with support bars (3), and the upper ends of the support bars (3) are provided with clamping grooves (4). The support bars (3) are slidably connected in the limiting grooves (5). The limiting grooves (5) are fixedly connected with springs (6) on both sides, and the other side of the spring (6) is fixedly connected with a stopper (8). The spring (6) is fixedly connected with a telescopic rod (7) inside, and the two ends of the telescopic rod (7) are respectively fixedly connected to the stopper (8) and the facing side of the limiting groove (5). The two ends of the side bars (2) are rotatably connected with bolts (9), and the separated side of the side bars (2) is provided with a reinforcement component and a casting component.

2. The easily assembled civil air defense door frame according to claim 1, characterized in that: The casting assembly comprises a plurality of casting blocks (13), wherein the plurality of casting blocks (13) are fixedly connected to a side where two side bars (2) are separated, a through hole (16) is provided on a surface of the casting block (13), a thread groove (14) is provided on a side where the casting block (13) is separated from the two side bars (2), and a second bolt (15) is connected to the inner thread of the thread groove (14).

3. The easily assembled civil air defense door frame according to claim 2, characterized in that: The reinforcement assembly comprises a plurality of steel rods (12), wherein the plurality of steel rods (12) are fixedly connected to a side of two side rods (2) that are separated from each other, and square steels (17) are fixedly connected inside the plurality of steel rods (12).

4. The easily assembled civil air defense door frame according to claim 1, characterized in that: The opposite side of the bottom rod (1) and the opposite side of the side rod (2) are both provided with support grooves (11), and a blocking rod (10) is slidably connected between every two of the support grooves (11).

5. The easily assembled civil air defense door frame according to claim 1, characterized in that: Both ends of the bottom rod (1) are provided with threaded holes, and the bolt 1 (9) is threadedly connected in the threaded holes of the bottom rod (1).

6. The easily assembled civil air defense door frame according to claim 1, characterized in that: The size of the limiting groove (5) matches the size of the supporting rod (3).

7. The easily assembled civil air defense door frame according to claim 3, characterized in that: The steel rod (12) is fixed in the middle of the two casting blocks (13).

8. The easily assembled civil air defense door frame according to claim 1, characterized in that: The stopper (8) is engaged in the engagement groove (4).

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