Impact-resistant civil air defense door

Abstract

The utility model provides an anti-impact civil air defense door which comprises a door frame and a door leaf rotationally installed on the door frame, a locking device is installed on the door leaf, and the locking device comprises a driving seat arranged in the middle of the door leaf and locking assemblies distributed and installed on the periphery of the driving seat. The locking assembly comprises two sets of lock rods arranged side by side and a linkage piece driving the two sets of lock rods to act synchronously, and the linkage piece is in transmission connection with the driving base so that the lock rods arranged in a distributed mode can act synchronously. The driving base is in synchronous transmission connection with the multiple locking assemblies, the two locking rods are arranged on the locking assemblies side by side, the locking assemblies are connected with the lock catch base through the multiple locking rods, and the impact resistance of the door leaf is improved. The rotating handle controls the first bevel gear to rotate through the driving shaft, the first bevel gear drives the second bevel gear to rotate, the pushing sleeve is controlled to move by pushing the screw rod, the push rod controls the lock rods to stretch and retract through the linkage piece, synchronous action of the distributed lock rods is achieved, and personnel operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, specifically to an impact-resistant civil defense door. Background Technology

[0002] Civil defense doors are the entrances and exits of civil defense projects. They are clearly categorized, including ordinary single and double-leaf protective airtight doors and airtight doors, as well as single and double-leaf protective airtight doors and airtight doors with movable thresholds, among other types. When subjected to impact, the locking bar of a civil defense door may deform, preventing it from passing through the locking sleeve and thus rendering the door unable to open. Therefore, impact-resistant civil defense doors are needed. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an impact-resistant air defense door to address the issues raised in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: an impact-resistant air defense door, including a door frame and a door leaf rotatably installed on the door frame. A locking device is installed on the door leaf. The locking device includes a drive seat located in the middle of the door leaf and locking components distributed around the drive seat. The locking components include two sets of locking rods arranged in parallel and a linkage that drives the two sets of locking rods to move synchronously. The linkage is connected to the drive seat to realize the synchronous movement of the distributed locking rods.

[0005] The door leaf is provided with an adjustable lock sleeve corresponding to the lock rod. The lock rod is slidably installed in the rod hole corresponding to the lock sleeve. The door frame is provided with a number of lock buckle seats corresponding to the lock rod. The lock rod is inserted into the lock hole corresponding to the lock buckle seat to lock the door leaf.

[0006] As a further embodiment of this utility model:

[0007] The lock sleeve has adjustable plates integrated on both sides. The door leaf has an adjusting rail corresponding to the adjustable plates. The lower end of the adjustable plate has a sliding groove, allowing it to slide on the adjusting rail and enabling the lock sleeve to move. Locking bolts are distributed at the upper end of the adjustable plates, and threaded sleeves are fixed to the adjustable plates corresponding to these bolts. Adjusting holes are distributed on the adjusting rail corresponding to the locking bolts. The locking bolts are threaded into the threaded sleeves and inserted into the corresponding adjusting holes to secure the lock sleeve. Baffles are also provided on both sides of the adjusting rail to limit the movement of the adjustable plates and prevent them from detaching from the rail. Specifically, when the lock rod is deformed by impact, the locking bolts can be loosened sequentially, allowing the lock sleeve to slide on the adjusting rail. This allows the lock rod to be pulled out of the latch seat, opening the door leaf.

[0008] As a further embodiment of this utility model:

[0009] The linkage includes a clamp and connecting rods rotatably disposed on both sides of the clamp. A connecting seat is rotatably connected to the side of the connecting rod away from the clamp. A connecting sleeve is provided on one side of the connecting seat. The connecting sleeve is connected to the locking rod through a coupling rod. A slider is provided on the outside of the coupling rod and is installed in the corresponding sliding hole of the locking rod through the slider so that the locking rod can be rotatably disposed. The lock hole on the lock seat has an oblong structure so that the locking rod can be rotated after deformation, making it easy for the locking rod to disengage from the lock hole, thereby making it easy to open the door.

[0010] As a further embodiment of this utility model:

[0011] The drive seat is provided with pushers arranged in a ring around the locking assembly. The drive seat has a drive shaft in the middle and a handle connected to the outer end of the drive shaft so that the operator can rotate the handle for adjustment. A first bevel gear is fixedly installed on the side of the drive shaft away from the handle. The pushers include a second bevel gear and a push screw connected to the second bevel gear. The first bevel gear and the distributed second bevel gear are synchronously connected to control the rotation of the push screw.

[0012] As a further embodiment of this utility model:

[0013] The two sides of the push screw are rotatably mounted on the supports and are mounted on the corresponding positions of the drive seat through the supports. A guide rail is also provided between the two supports of the push screw. A push sleeve is threaded on the push screw. A slider is provided on one side of the push sleeve and is slidably mounted on the guide rail through the slider to limit the rotation of the push sleeve. A push rod is fixedly mounted on the side of the push sleeve away from the slider. The outer end of the push rod is fixedly connected to the clamp to control the action of the linkage.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the drive seat is synchronously connected to several sets of locking components, and two sets of locking rods are arranged side by side on the locking components to connect with the lock seat through multiple sets of locking rods, thereby improving the impact resistance of the door leaf. The handle controls the rotation of the first bevel gear through the drive shaft, and the first bevel gear drives the rotation of the second bevel gear to control the movement of the push sleeve through the push screw. The push rod controls the extension and retraction of the locking rod through the linkage, realizing the synchronous action of the distributed locking rods, which is convenient for personnel operation. When the door leaf is impacted and the locking rod is deformed, the personnel can loosen the locking bolt, so that the locking sleeve is slidably set on the adjusting slide rail, and the locking sleeve and the locking rod are pulled back on one side, thereby making it easy to open the door leaf; wherein the locking rod is rotatably connected to the connecting sleeve, and the lock hole in the lock seat has an oblong structure, so that the locking rod can be rotated after the locking rod is deformed, making it easy for the locking rod to disengage from the lock hole, thereby making it easy to open the door leaf. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2for Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This is a schematic diagram of the internal structure of the drive seat of this utility model;

[0018] The diagram shows the following components: 1. Door frame; 2. Door leaf; 3. Locking rod; 4. Clamp; 11. Lock seat; 12. Lock hole; 20. Push rod; 21. Drive seat; 22. Handle; 23. First bevel gear; 24. Second bevel gear; 25. Push screw; 26. Support; 27. Guide rail; 28. Push sleeve; 29. ​​Sliding block; 31. Lock sleeve; 32. Adjusting plate; 33. Adjusting slide rail; 34. Locking bolt; 35. Screw sleeve; 36. Adjusting hole; 37. Baffle; 41. Connecting rod; 42. Connecting seat; 43. Connecting sleeve. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0020] like Figures 1-3 As shown,

[0021] This embodiment provides an impact-resistant air defense door, including a door frame 1 and a door leaf 2 rotatably mounted on the door frame 1. The door leaf 2 is equipped with a locking device, which includes a drive seat 21 located in the middle of the door leaf 2 and locking components distributed around the drive seat 21. The locking components include two sets of locking rods 3 arranged in parallel and a linkage that drives the two sets of locking rods 3 to move synchronously. The linkage is connected to the drive seat 21 to realize the synchronous movement of the distributed locking rods 3.

[0022] The door leaf 2 is provided with an adjustable lock sleeve 31 corresponding to the lock rod 3. The lock rod 3 is slidably installed in the rod hole corresponding to the lock sleeve 31. The door frame 1 is provided with a number of lock buckle seats 11 corresponding to the lock rod 3. The lock rod 3 is inserted into the lock hole 12 corresponding to the lock buckle seat 11 to lock the door leaf 2.

[0023] In this embodiment, the lock sleeve 31 is integrally provided with adjusting plates 32 on both sides. The door leaf 2 is provided with adjusting slide rails 33 corresponding to the adjusting plates 32. The lower end of the adjusting plate 32 is provided with a sliding groove, and it is slidably installed on the adjusting slide rail 33 through the sliding groove, so that the lock sleeve 31 can be moved. The upper end of the adjusting plate 32 is provided with locking bolts 34. The adjusting plate 32 is fixed with threaded sleeves 35 corresponding to the locking bolts 34. The adjusting slide rail 33 is provided with adjusting holes 36 corresponding to the locking bolts 34. The locking bolts 34 are threaded into the threaded sleeves 35 and inserted into the corresponding adjusting holes 36 to fix the lock sleeve 31. The two sides of the adjusting slide rail 33 are also provided with baffles 37 to limit the adjustment plate 32 and prevent the adjustment plate 32 from disengaging from the adjusting slide rail 33. Specifically, when the lock rod 3 is deformed by impact, the locking bolts 34 can be loosened in sequence, so that the lock sleeve 31 can be slidably installed on the adjusting slide rail 33. In this way, the lock rod 3 can be pulled out of the lock seat 11 and the door leaf 2 can be opened.

[0024] In this embodiment, the linkage includes a clamping seat 4 and a connecting rod 41 rotatably disposed on both sides of the clamping seat 4. A connecting seat 42 is rotatably connected to the side of the connecting rod 41 away from the clamping seat 4. A connecting sleeve 43 is provided on one side of the connecting seat 42. The connecting sleeve 43 is connected to the locking rod 3 through a coupling rod. A slider 29 is provided on the outer side of the coupling rod and is installed in the corresponding sliding hole of the locking rod 3 through the slider 29, so that the locking rod 3 can be rotatably disposed. The lock hole 12 on the lock seat 11 has an oblong structure so that the locking rod 3 can be rotated after the locking rod 3 is deformed, so that the locking rod 3 can be disengaged from the lock hole 12, thereby facilitating the opening of the door leaf 2.

[0025] In this embodiment, the drive base 21 is provided with pushers arranged in a ring around the locking assembly. The drive base 21 is provided with a drive shaft in the middle. The drive shaft is located at the outer end of the drive base 21 and connected to a handle 22 so that the operator can rotate the handle 22 for adjustment. A first bevel gear 23 is fixedly installed on the side of the drive shaft away from the handle 22. The pushers include a second bevel gear 24 and a push screw 25 connected to the second bevel gear 24. The first bevel gear 23 and the distributed second bevel gear 24 are synchronously connected to control the rotation of the push screw 25.

[0026] The two sides of the push screw 25 are rotatably mounted on the support 26 and are mounted on the corresponding positions of the drive seat 21 through the support 26. A guide rail 27 is also provided between the two sides of the push screw 25 and the support 26. A push sleeve 28 is threadedly installed on the push screw 25. A slider 29 is provided on one side of the push sleeve 28 and is slidably mounted on the guide rail 27 through the slider 29 to limit the rotation of the push sleeve 28. A push rod 20 is fixedly installed on the side of the push sleeve 28 away from the slider 29. The outer end of the push rod 20 is fixedly connected to the clamp 4 to control the action of the linkage.

[0027] Specifically, the drive seat 21 is synchronously connected to several sets of locking components. Two sets of locking rods 3 are arranged side-by-side on each locking component, connecting to the latch seat 11 via multiple sets of locking rods 3 to improve the impact resistance of the door leaf 2. The handle 22 controls the rotation of the first bevel gear 23 via the drive shaft, which in turn drives the rotation of the second bevel gear 24. This, in turn, controls the movement of the push sleeve 28 via the push screw 25. The push rod 20 controls the extension and retraction of the locking rods 3 via a linkage, achieving synchronous movement of the distributed locking rods 3 for easy operation. When the door leaf 2 is impacted, causing the locking rods 3 to deform, the operator can loosen the locking bolt 34, allowing the locking sleeve 31 to slide on the adjusting slide rail 33. The locking sleeve 31 and the locking rod 3 are pulled back on one side, facilitating the opening of the door leaf 2. The locking rod 3 is rotatably connected to the connecting sleeve 43. The lock hole 12 in the latch seat 11 has an oblong structure, allowing the locking rod 3 to rotate after deformation, facilitating its disengagement from the lock hole 12 and thus opening the door leaf 2.

[0028] 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. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An impact-resistant air-raid shelter door, comprising a door frame (1) and a door leaf (2) rotatably mounted on the door frame (1), wherein a locking device is installed on the door leaf (2), characterized in that: The locking device includes a drive seat (21) located in the middle of the door leaf (2) and locking components distributed around the drive seat (21). The locking components include two sets of locking rods (3) arranged in parallel and a linkage that drives the two sets of locking rods (3) to move synchronously. The linkage is connected to the drive seat (21) to realize the synchronous movement of the distributed locking rods (3). The door leaf (2) is provided with an adjustable lock sleeve (31) corresponding to the lock rod (3). The lock rod (3) is slidably installed in the rod hole corresponding to the lock sleeve (31). The door frame (1) is provided with a number of lock buckle seats (11) corresponding to the lock rod (3). The lock rod (3) is inserted into the lock hole (12) corresponding to the lock buckle seat (11) to lock the door leaf (2).

2. The impact-resistant air-raid shelter door according to claim 1, characterized in that: The lock sleeve (31) is integrally provided with adjusting plates (32) on both sides. The door leaf (2) is provided with adjusting slide rails (33) corresponding to the adjusting plates (32). The lower end of the adjusting plate (32) is provided with a sliding groove and is slidably installed on the adjusting slide rail (33) through the sliding groove, so that the lock sleeve (31) can be moved. The upper end of the adjusting plate (32) is provided with locking bolts (34). The adjusting plate (32) is fixed with a screw sleeve (35) corresponding to the locking bolts (34). The adjusting slide rail (33) is provided with adjusting holes (36) corresponding to the locking bolts (34). The locking bolts (34) are threaded in the screw sleeves (35) and inserted into the corresponding adjusting holes (36) to fix the lock sleeve (31). The adjusting slide rail (33) is also provided with baffles (37) on both sides to limit the adjustment plate (32).

3. The impact-resistant air-raid shelter door according to claim 2, characterized in that: The linkage includes a clamp (4) and a connecting rod (41) rotatably disposed on both sides of the clamp (4). The connecting rod (41) is rotatably connected to a connecting seat (42) on the side away from the clamp (4). A connecting sleeve (43) is provided on one side of the connecting seat (42). The connecting sleeve (43) is connected to the locking rod (3) through a coupling rod. A slider (29) is provided on the outside of the coupling rod and is installed in the corresponding sliding hole of the locking rod (3) through the slider (29) so that the locking rod (3) can be rotatably disposed. The lock hole (12) on the latch seat (11) has an oblong structure so that the locking rod (3) can be rotated after the locking rod (3) is deformed, so that the locking rod (3) can be disengaged from the lock hole (12), thereby facilitating the opening of the door leaf (2).

4. The impact-resistant air-raid shelter door according to claim 3, characterized in that: The drive seat (21) is provided with pushers arranged in a ring around the locking assembly. The drive seat (21) is provided with a drive shaft in the middle. The drive shaft is located at the outer end of the drive seat (21) and connected to a handle (22) so that the operator can rotate the handle (22) for adjustment. A first bevel gear (23) is fixedly installed on the side of the drive shaft away from the handle (22). The pusher includes a second bevel gear (24) and a push screw (25) connected to the second bevel gear (24). The first bevel gear (23) and the distributed second bevel gear (24) are synchronously connected to control the rotation of the push screw (25).

5. The impact-resistant air-raid shelter door according to claim 4, characterized in that: The two sides of the push screw (25) are rotatably mounted on the support (26) and are mounted on the corresponding position of the drive seat (21) through the support (26). A guide rail (27) is also provided between the two sides of the push screw (25) and the support (26). A push sleeve (28) is threaded on the push screw (25). A slider (29) is provided on one side of the push sleeve (28) and is slidably mounted on the guide rail (27) through the slider (29) to limit the rotation of the push sleeve (28). A push rod (20) is fixedly installed on the side of the push sleeve (28) away from the slider (29). The outer end of the push rod (20) is fixedly connected to the clamp (4) to control the action of the linkage.

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