Civil air defense door with double positioning structures

Abstract

The utility model relates to the technical field of civil air defense doors, and discloses a civil air defense door with a double positioning structure, which comprises a door frame, lock holes are arranged at two ends of one side in the door frame, a door body is hinged to one side of the door frame, lock heads are hinged to two ends of one end of the door body, and a limiting lock rod is fixed at the bottom end of a connecting block. A limiting groove is formed in the bottom end of the limiting lock rod, and the limiting groove is formed in one side of the bottom end in the door frame. According to the civil air defense door, the limiting lock rod, the connecting block, the limiting groove and other assemblies are arranged, and in the use process of the civil air defense door, the first rotating rod is rotated to drive the lock head to be rotationally clamped into the lock hole, so that positioning and locking of the civil air defense door are completed; and a limiting lock rod installed on one side of the vertical rod can be clamped into the limiting groove to form another positioning lock of the civil air defense door, so that the civil air defense door has double positioning, locking is firmer, and safety is higher.

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 a double positioning structure. Background Art

[0002] A door is an entrance and exit for people and vehicles in a building, while a civil air defense door is a door installed in a people's safety protection project for entry and exit. It is made of concrete and steel and is commonly installed in underground shopping malls, underground parking lots, hospitals, warehouses and other locations. It is used in earthquakes and natural disasters to provide corresponding protection for the people. Civil air defense doors have the characteristics of high strength, corrosion resistance, easy installation and long service life.

[0003] During the use of traditional civil air defense doors, the locking between the door body and the door frame is relatively simple, and there is only one lock body to position and lock the door body in the civil air defense door, which has low security. Therefore, we propose a civil air defense door with a double positioning structure to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a civil air defense door with a double positioning structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a civil defense door with a double positioning structure, comprising a door frame, lock holes are provided at both ends of one side of the interior of the door frame, a door body is hingedly installed on one side of the door frame, lock heads are hingedly installed on both ends of one end of the door body, a hinged rod is hingedly installed on one end of the lock head, and a vertical rod is hingedly installed on one end of the hinged rod, a first rotating rod is provided on one side of the vertical rod, and one end of the first rotating rod is hingedly installed on one end of the door body, a second rotating rod is installed on the other end of the first rotating rod, a connecting block is fixed to the bottom end of one side of the vertical rod, and a limiting lock rod is fixed to the bottom end of the connecting block, a limiting groove is provided at the bottom end of the limiting lock rod, and the limiting groove is provided on one side of the bottom end of the interior of the door frame.

[0006] Preferably, the cross section of the limiting lock rod is smaller than the cross section of the limiting groove, and a snap-fit ​​structure is formed between the limiting lock rod and the limiting groove.

[0007] Preferably, a groove body is provided on one side of the bottom end inside the door frame, a threaded rod is movably provided at the bottom end inside the groove body, a sphere is fixed at the top end of the threaded rod, a support block is fixed at the bottom end of the threaded rod, and a friction block is fixed at the bottom end of the support block.

[0008] Preferably, two groups of threaded rods are provided, and the two groups of threaded rods are symmetrically distributed about the central axis of the trough body.

[0009] Preferably, a plurality of friction blocks are provided, and the plurality of friction blocks are distributed at equal intervals at the bottom end of the support block.

[0010] Preferably, a magnetic sealing strip is fixed to the periphery of one end of the door body, and a metal strip is fixed to the periphery of one end of the door frame.

[0011] Preferably, the cross-section of the magnetic sealing strip is the same as that of the metal strip, and the magnetic sealing strip and the metal strip are adapted to each other.

[0012] Preferably, a heat insulation board is provided at one end inside the door body, and the door body and the heat insulation board are adapted to each other.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the civil air defense door with a double positioning structure not only realizes that the door body has a double positioning structure, the protection is safer, and the support and protection of the door body are realized, but also realizes that the sealing of the door body is stronger and the use effect is better;

[0014] (1) By providing components such as a limited locking rod, a connecting block and a limited slot, the civil air defense door can be positioned and locked by rotating the first rotating rod to drive the lock head to rotate and snap into the interior of the lock hole during use. After the lock head snaps into the interior of the lock hole, the limited locking rod installed on one side of the vertical rod will also snap into the interior of the limited slot to form another positioning lock of the civil air defense door, thereby enabling the civil air defense door to have dual positioning, and the locking is more secure and safer.

[0015] (2) By providing components such as a support block, a friction block, a threaded rod and a groove body, the civil air defense door can push the support block downward to contact the ground by rotating the threaded rod after opening, thereby supporting the door body, so that the door body has a certain supporting force after opening, which can effectively avoid the door body from tilting due to its own gravity after opening, thereby extending the service life of the door body;

[0016] (3) By providing a magnetic sealing strip and a metal strip, the magnetic sealing strip and the metal strip are respectively fixed on one end of the door body and the door frame, so that the magnetic sealing strip and the metal strip provided on the civil air defense door will be adsorbed together by magnetic force after the civil air defense door is closed, so that the door body and the door frame are stably adsorbed together to seal the civil air defense door, thereby effectively improving the sealing of the civil air defense door and making the use effect of the civil air defense door better. In addition, because a heat insulation board is also used inside the door body, the heat insulation performance of the door body is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the door body of the utility model;

[0019] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged cross-section structure at the middle A;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the magnetic sealing strip of the utility model.

[0021] In the figure: 1. door frame; 2. lock hole; 3. door body; 4. hinge rod; 5. first rotating rod; 6. vertical rod; 7. lock head; 8. limit lock rod; 9. connecting block; 10. magnetic sealing strip; 11. limit groove; 12. metal strip; 13. support block; 14. second rotating rod; 15. friction block; 16. threaded rod; 17. groove body; 18. ball; 19. insulation board. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1: Please refer to Figure 1-4 , a human defense door with a double positioning structure, comprising a door frame 1, lock holes 2 are arranged at both ends of one side of the inner side of the door frame 1, a door body 3 is hingedly installed on one side of the door frame 1, and lock heads 7 are hingedly installed on both ends of one end of the door body 3, one end of the lock head 7 is hingedly installed with a hinge rod 4, and one end of the hinge rod 4 is hingedly installed with a vertical rod 6, a first rotating rod 5 is arranged on one side of the vertical rod 6, and one end of the first rotating rod 5 is hingedly installed with one end of the door body 3, and a second rotating rod 14 is arranged on the other end of the first rotating rod 5, a connecting block 9 is fixed at the bottom end of one side of the vertical rod 6, and a limiting locking rod 8 is fixed at the bottom end of the connecting block 9, a limiting groove 11 is arranged at the bottom end of the limiting locking rod 8, and the limiting groove 11 is arranged on one side of the bottom end of the inner side of the door frame 1, the cross section of the limiting locking rod 8 is smaller than the cross section of the limiting groove 11, and a clamping structure is formed between the limiting locking rod 8 and the limiting groove 11, and the design of the clamping structure makes the second positioning locking structure have a better locking effect on the door body 3;

[0024] Specifically, Figure 1 As shown, during the downward movement of the vertical rod 6, the limit lock rod 8 fixed by the connecting block 9 on one side of the vertical rod 6 will also move downward and engage in the limit groove 11 inside the door frame 1, forming the second positioning lock of the civil air defense door.

[0025] Embodiment 2: A groove body 17 is provided on one side of the bottom end of the inner part of the door frame 1, and a threaded rod 16 is movably provided at the bottom end of the inner part of the groove body 17, a ball 18 is fixed to the top end of the threaded rod 16, a support block 13 is fixed to the bottom end of the threaded rod 16, and a friction block 15 is fixed to the bottom end of the support block 13, two groups of threaded rods 16 are provided, and the two groups of threaded rods 16 are symmetrically distributed about the central axis of the groove body 17, and a plurality of friction blocks 15 are provided, and the plurality of friction blocks 15 are evenly spaced at the bottom end of the support block 13, and the symmetrically distributed threaded rods 16 and the evenly spaced friction blocks 15 increase the friction between the support block 13 and the ground, so that the support block 13 has a better supporting and stabilizing effect on the door body 3;

[0026] Specifically, Figure 1 and Figure 3 As shown, after the door body 3 is opened, the ball 18 inside the groove body 17 is held to rotate the threaded rod 16. The threaded rod 16 rotates to push the support block 13 to fit the ground to support the door body 3, so that the door body 3 maintains a certain stability and is not easily damaged by falling and deformation due to gravity.

[0027] Embodiment 3: A magnetic sealing strip 10 is fixed to the periphery of one end of the door body 3, a metal strip 12 is fixed to the periphery of one end of the door frame 1, the cross-sections of the magnetic sealing strip 10 and the metal strip 12 are the same, the magnetic sealing strip 10 and the metal strip 12 are adapted to each other, a heat insulation board 19 is provided at one end inside the door body 3, the door body 3 and the heat insulation board 19 are adapted to each other, so that the heat insulation protection of the door body 3 is more comprehensive;

[0028] Specifically, Figure 1 and Figure 4 As shown, when the door body 3 and the door frame 1 are engaged together to close the civil air defense door, the magnetic sealing strip 10 at one end of the door body 3 will be magnetically attracted to the metal strip 12 at one end of the door frame 1, so that the door body 3 and the door frame 1 are tightly engaged together, and the sealing is stronger.

[0029] Working principle: When the utility model is in use, the civil air defense door is installed in the corresponding position. After the door body 3 is rotated to engage with the door frame 1, the magnetic sealing strip 10 and the metal strip 12 are magnetically attracted together to seal the civil air defense door. Then the door lock on the door body 3 is rotated to lock the door body. Then the first rotating rod 5 is rotated to drive the vertical rod 6 to move downward so that the vertical rod 6 drives the lock head 7 to engage with the inside of the lock hole 2 through the hinged hinge rod 4 during the movement to perform the first positioning of the civil air defense door. After the lock head 7 is engaged with the inside of the lock hole 2, the connecting block 9 on one side of the vertical rod 6 will follow the movement of the vertical rod 6 to engage with the inside of the limiting groove 11 to perform the second positioning of the civil air defense door, making the civil air defense door more secure and safe under the double positioning locking. When the civil air defense door is opened and used, the ball 18 can also be held to rotate the threaded rod 16 to push the support block 13 to fit the ground to support the door body 3 to prevent the door body 3 from deforming.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A civil air defense door with a dual positioning structure, comprising a door frame (1), characterized in that: The door frame (1) is provided with lock holes (2) at both ends of one side thereof, a door body (3) is hingedly mounted on one side of the door frame (1), a lock head (7) is hingedly mounted on both ends of one end of the door body (3), a hinge rod (4) is hingedly mounted on one end of the lock head (7), a vertical rod (6) is hingedly mounted on one end of the hinge rod (4), a first rotating rod (5) is provided on one side of the vertical rod (6), one end of the first rotating rod (5) is hingedly mounted on one end of the door body (3), a second rotating rod (14) is installed on the other end of the first rotating rod (5), a connecting block (9) is fixed on the bottom end of one side of the vertical rod (6), a limiting lock rod (8) is fixed on the bottom end of the connecting block (9), a limiting groove (11) is provided on the bottom end of the limiting lock rod (8), and the limiting groove (11) is provided on one side of the bottom end of the door frame (1).

2. The civil air defense door with a dual positioning structure according to claim 1, characterized in that: The cross section of the limiting lock rod (8) is smaller than the cross section of the limiting groove (11), and a snap-fit ​​structure is formed between the limiting lock rod (8) and the limiting groove (11).

3. The civil air defense door with a dual positioning structure according to claim 1, characterized in that: A groove body (17) is provided on one side of the bottom end of the door frame (1), a threaded rod (16) is movably provided at the bottom end of the groove body (17), a sphere (18) is fixed to the top end of the threaded rod (16), a support block (13) is fixed to the bottom end of the threaded rod (16), and a friction block (15) is fixed to the bottom end of the support block (13).

4. The civil air defense door with a dual positioning structure according to claim 3 is characterized in that: The threaded rods (16) are provided in two groups, and the two groups of threaded rods (16) are symmetrically distributed about the central axis of the trough body (17).

5. The civil air defense door with a dual positioning structure according to claim 3 is characterized in that: A plurality of the friction blocks (15) are provided, and the plurality of the friction blocks (15) are distributed at equal intervals at the bottom end of the support block (13).

6. The civil defense door with a dual positioning structure according to claim 1, characterized in that: A magnetic sealing strip (10) is fixed to the periphery of one end of the door body (3), and a metal strip (12) is fixed to the periphery of one end of the door frame (1).

7. The civil air defense door with a dual positioning structure according to claim 6, characterized in that: The cross-section of the magnetic sealing strip (10) and the metal strip (12) is the same, and the magnetic sealing strip (10) and the metal strip (12) are adapted to each other.

8. The civil air defense door with a dual positioning structure according to claim 6, characterized in that: A heat insulation board (19) is provided at one end inside the door body (3), and the door body (3) and the heat insulation board (19) are adapted to each other.

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