Anti-explosion civil air defense door

Abstract

The utility model discloses an anti-explosion civil air defense door, and relates to the technical field of civil air defense doors, the anti-explosion civil air defense door comprises two second slot blocks, the surfaces of the two second slot blocks are fixedly connected with a concrete block, the top of the concrete block is in lap joint with a civil air defense door frame assembly, and the left side and the right side of the front face of the civil air defense door frame assembly are rotationally connected with anti-explosion door assemblies; clamping assemblies are fixedly connected to the two sides, close to the middle, of the top of the front face of the civil air defense door frame assembly. According to the anti-explosion civil air defense door, the third connecting shaft rotationally connected with the bottom of the mounting block drives the hook to rotate up and down, so that the spring fixedly connected with the inner wall of the front portion of the mounting block is pushed to be combined with the damper movably connected with the outer surface of the spring in a sleeving mode, and when the anti-explosion door is pushed to be opened, the lap joint block is driven to push the hook upwards; and on the contrary, the protection closing function is started through the combination of the hook and the lap joint block, and the problem that closing is easy to push is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors, in particular to an explosion-proof civil air defense door. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. There are distinct classifications of civil defense doors, including ordinary single-leaf and double-leaf protective closed doors and closed doors, movable threshold single-leaf and double-leaf protective closed doors and closed doors, and other civil defense equipment.

[0003] For example, the Chinese patent with publication number CN211500386U discloses an explosion-proof civil air defense door. It only solves the problem that the existing civil air defense door has no structure to buffer the explosion shock wave, is easily damaged by the explosion shock wave, and has a low explosion-proof coefficient. It has not yet solved the problem that the sealing reinforcement of the closed explosion-proof door and the door frame of the explosion-proof civil air defense door structure to buffer the explosion shock wave is not stable enough.

[0004] The existing technology has the following problems:

[0005] However, the problem of the closed explosion-proof door and door frame having a structure for buffering explosion shock waves is not solved, and the problem of the lack of stable structure due to easy pushing when closed when the seal is not reinforced is not solved. Utility Model Content

[0006] The utility model provides an explosion-proof civil air defense door to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] An explosion-proof civil air defense door comprises two slot blocks 2, the surfaces of the two slot blocks 2 are fixedly connected with concrete blocks, the tops of the concrete blocks are overlapped with civil air defense door frame components, the left and right sides of the front of the civil air defense door frame components are rotatably connected with explosion-proof door components, and the front top of the civil air defense door frame components are fixedly connected with clamping components on both sides near the middle.

[0009] Preferably: the civil defense door frame assembly includes a door frame, and rotating hollow columns are fixedly connected to the upper and lower positions of the left and right sides of the front of the door frame, and the door frame is arranged inside the building. Slot blocks 1 are fixedly connected to both sides near the middle of the top of the front of the door frame, and the two slot blocks 1 are located on the side away from the two snap-in assemblies.

[0010] Preferably: the two explosion-proof door assemblies include two explosion-proof doors, the front tops of the two explosion-proof doors are fixedly connected with a lap block, the upper and lower fronts of the two explosion-proof doors are fixedly connected with a limiting slider, and the fronts of the two explosion-proof doors are fixedly connected with an adjusting pin assembly.

[0011] Preferably, the two explosion-proof doors are fixedly connected with a rotating connecting shaft on the upper and lower sides away from each other, and the surfaces of the two rotating connecting shafts are rotatably connected to the inner walls of the two rotating hollow columns.

[0012] Preferably, the adjusting latch assembly comprises a fixing block, the rear side of the fixing block is fixedly connected to the front side of the explosion-proof door, the inner wall of the fixing block is rotatably connected to a threaded shaft, and the outer surface of the threaded shaft is fixedly connected to a handle ring near the front side.

[0013] Preferably: the outer surface of the threaded shaft is threadedly connected to a driving rod, the upper and lower parts of the driving rod are rotatably connected to connecting shaft one, the surfaces of the two connecting shafts one are rotatably connected to a lower pressure rod, the two lower pressure rods are rotatably connected to a connecting shaft two on the side away from each other, the outer surfaces of the two connecting shafts two are rotatably connected to a latch shaft, and the outer surfaces of the two latch shafts are slidably connected to the inner walls of the two limit sliders.

[0014] Preferably: the snap-on assembly includes a mounting block, the bottom of the mounting block is rotatably connected to a connecting shaft three, the outer surface of the connecting shaft three is rotatably connected to a hook, a sliding groove is provided on the top of the hook, the surface of the hook overlaps the surface of the overlapping block, and the back of the mounting block is fixedly connected to the front of the door frame.

[0015] Preferably: a spring is fixedly connected to the front inner wall of the mounting block, a damper is movably sleeved on the outer surface of the spring, a slider is fixedly connected to the output end of the damper, the left and right bottom surfaces of the slider slide with the inner wall of the slide groove, and the output end of the damper is fixedly connected to the top of the hook near the front side.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides an explosion-proof personal air defense door, which drives the rotation of the threaded shaft by manual rotation of the handle ring, and utilizes a fixed block to fix the rotation connection of the threaded shaft, and the rotating thread of the threaded shaft pushes the driving rod up and down, thereby driving the upper and lower connecting shafts 1, the combination of the lower pressure rod and the connecting shaft 2 to push the extension and contraction of the latch shaft, and slide on the inner walls of the two limit sliders, so that the upper and lower latch shafts are plugged and fixed on the inner walls of the slot block 1 and the slot block 2, which plays a role in facilitating the sealing and reinforcing operation of closing the explosion-proof door and the door frame.

[0018] 2. The utility model provides an explosion-proof civil air defense door, which drives the hook to rotate up and down through the connecting shaft three rotatably connected to the bottom of the mounting block, thereby pushing the spring fixedly connected to the front inner wall of the mounting block and the damper movably sleeved on the outer surface of the spring to combine. When the explosion-proof door is pushed open, the overlapping block is driven to push the hook upward, and the slider is driven to slide on the inner wall of the slide groove to achieve the effect of automatic rebound downward. Conversely, the combination of the hook and the overlapping block is used to start the protective closing function, thereby solving the problem that the closing is easy to push. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is an enlarged structural diagram of the civil air defense door frame assembly of the utility model;

[0021] Figure 3 For the utility model Figure 2 A is an enlarged structural diagram;

[0022] Figure 4 This is a schematic diagram of the structure of the adjustment latch assembly of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the utility model.

[0024] In the figure: 1. Civil air defense door frame assembly; 11. Door frame; 12. Slot block one; 13. Rotating hollow column; 2. Explosion-proof door assembly; 21. Explosion-proof door; 22. Overlap block; 23. Limit slider; 24. Adjustment latch assembly; 241. Fixed block; 242. Threaded shaft; 243. Handle ring; 244. Driving rod; 245. Connecting shaft one; 246. Press-down rod; 247. Connecting shaft two; 248. Latch shaft; 25. Rotating connecting shaft; 3. Concrete block; 4. Snap-on assembly; 41. Mounting block; 42. Connecting shaft three; 43. Hook; 44. Damper; 45. Spring; 46. Slider; 47. Slide groove; 5. Slot block two. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, an explosion-proof civil air defense door comprises two slot blocks 25, the surfaces of the two slot blocks 25 are fixedly connected with concrete blocks 3, the tops of the concrete blocks 3 are overlapped with a civil air defense door frame assembly 1, the left and right sides of the front of the civil air defense door frame assembly 1 are rotatably connected with explosion-proof door assemblies 2, and the front top of the civil air defense door frame assembly 1 is fixedly connected with snap-on assemblies 4 on both sides near the middle.

[0027] The explosion-proof door assembly 2 and the clamping assembly 4 are stably installed in a predetermined position by assisting the civil air defense door frame assembly 1, so that the concrete block 3 assists the fixed connection of the two slot blocks 2 5.

[0028] like Figure 2 , Figure 3 As shown, the civil defense door frame assembly 1 includes a door frame 11, and rotating hollow columns 13 are fixedly connected to the upper and lower positions of the left and right sides of the front of the door frame 11, and the door frame 11 is arranged inside the building. The top of the front of the door frame 11 is fixedly connected to slot blocks 12 on both sides near the middle, and the two slot blocks 12 are located on the side away from the two clamping assemblies 4. The two explosion-proof door assemblies 2 include two explosion-proof doors 21, and the top of the front of the two explosion-proof doors 21 is fixedly connected to a lap block 22, and the front of the two explosion-proof doors 21 is fixedly connected to a limiting slider 23, and the front of the two explosion-proof doors 21 is fixedly connected to an adjusting latch assembly 24. The two explosion-proof doors 21 are fixedly connected to a rotating connecting shaft 25 on the upper and lower sides away from the two explosion-proof doors 21, and the surfaces of the two rotating connecting shafts 25 are rotatably connected to the inner walls of the two rotating hollow columns 13.

[0029] The rotating hollow columns 13 fixedly connected at upper and lower positions on both sides of the front of the door frame 11 play the role of utilizing the rotating connecting shafts 25 fixedly connected at upper and lower positions on the side away from the two explosion-proof doors 21 to assist the rotation of the explosion-proof doors 21 and the closing of the door frame 11.

[0030] like Figure 4 , Figure 5 As shown, the adjusting latch assembly 24 includes a fixing block 241, the rear of the fixing block 241 is fixedly connected to the front of the explosion-proof door 21, the inner wall of the fixing block 241 is rotatably connected to a threaded shaft 242, the outer surface of the threaded shaft 242 is fixedly connected to a handle ring 243 near the front side, the outer surface of the threaded shaft 242 is threadedly connected to a driving rod 244, the upper and lower parts of the driving rod 244 are rotatably connected to a connecting shaft 1 245, the surfaces of the two connecting shafts 1 245 are rotatably connected to a pressing rod 246, and the two pressing rods 246 are far away from one side. It is rotatably connected with a connecting shaft 247, and the outer surfaces of the two connecting shafts 247 are rotatably connected with a latch shaft 248. The outer surfaces of the two latch shafts 248 are slidably connected to the inner walls of the two limit sliding blocks 23. The clamping assembly 4 includes a mounting block 41, and the bottom of the mounting block 41 is rotatably connected with a connecting shaft 3 42, and the outer surface of the connecting shaft 3 42 is rotatably connected with a hook 43. A sliding groove 47 is provided on the top of the hook 43, and the surface of the hook 43 overlaps the surface of the overlapping block 22. The back of the mounting block 41 is fixedly connected to the front of the door frame 11.

[0031] The threaded shaft 242 is driven to rotate manually through the handle ring 243, and the rotation connection of the threaded shaft 242 is fixed by the fixing block 241, and the rotating thread of the threaded shaft 242 pushes the driving rod 244 up and down, thereby driving the combination of the upper and lower connecting shafts 1 245, the lower pressure rod 246 and the connecting shaft 2 247 to push the extension and retraction of the latch shaft 248, which slides on the inner walls of the two limit sliders 23, so that the upper and lower latch shafts 248 are inserted into the inner walls of the slot block 12 and the slot block 2 5 for fixing, thereby playing the role of sealing the explosion-proof door 21 and the door frame 11.

[0032] like Figure 5 As shown, a spring 45 is fixedly connected to the front inner wall of the mounting block 41, a damper 44 is movably sleeved on the outer surface of the spring 45, a slider 46 is fixedly connected to the output end of the damper 44, the bottom surfaces on the left and right sides of the slider 46 slide with the inner wall of the slide groove 47, and the output end of the damper 44 is fixedly connected to the top of the hook 43 near the front side.

[0033] The connecting shaft 3 42 rotatably connected to the bottom of the mounting block 41 drives the hook 43 to rotate up and down, thereby pushing the spring 45 fixedly connected to the front inner wall of the mounting block 41 and the damper 44 movably sleeved on the outer surface of the spring 45 to combine, so that when the explosion-proof door 21 is pushed open, the overlapping block 22 is driven to help push the hook 43 upward, and the slider 46 is driven to slide on the inner wall of the slide groove 47 to achieve the effect of automatic rebound downward. Conversely, the combination of the hook 43 and the overlapping block 22 is used to start the protective closing function.

[0034] The working principle of the utility model is as follows: the rotating hollow column 13 fixedly connected at the upper and lower positions on the left and right sides of the front of the door frame 11 plays the role of utilizing the rotating connecting shaft 25 fixedly connected at the upper and lower positions on the far side of the two explosion-proof doors 21 to combine with the rotation of the auxiliary explosion-proof door 21 and the closing of the door frame 11, and then the handle ring 243 is manually rotated to drive the rotation of the threaded shaft 242, and the fixed block 241 is used to fix the rotation connection of the threaded shaft 242, and the rotating thread of the threaded shaft 242 pushes the driving rod 244 up and down, thereby driving the combination of the upper and lower connecting shafts 1 245, the lower pressure rod 246 and the connecting shaft 2 247 to push the extension and contraction of the latch shaft 248, and the inner part of the two limit sliders 23 The wall slides, so that the upper and lower latch shafts 248 are inserted into the inner walls of the slot block 12 and the slot block 25 for fixing, which plays a role in sealing the explosion-proof door 21 and the door frame 11, and then the connecting shaft 3 42 rotatably connected to the bottom of the mounting block 41 drives the hook 43 to rotate up and down, thereby pushing the spring 45 fixedly connected to the front inner wall of the mounting block 41 and the damper 44 movably sleeved on the outer surface of the spring 45 to combine, when the explosion-proof door 21 is pushed open, the lap block 22 is driven to help push the hook 43 upward, and the slider 46 is driven to slide on the inner wall of the slide groove 47 to achieve the effect of automatic rebound downward. Conversely, the combination of the hook 43 and the lap block 22 is used to start the protective closure.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An explosion-proof civil air defense door, comprising two slot blocks 2 (5), characterized in that: The surfaces of the two slot blocks (5) are fixedly connected with concrete blocks (3), the top of the concrete blocks (3) is overlapped with a human air defense door frame assembly (1), the front left and right sides of the human air defense door frame assembly (1) are rotatably connected with explosion-proof door assemblies (2), and the front top of the human air defense door frame assembly (1) is fixedly connected with clamping assemblies (4) on both sides near the middle.

2. The explosion-proof civil air defense door according to claim 1, characterized in that: The civil air defense door frame assembly (1) comprises a door frame (11), and rotating hollow columns (13) are fixedly connected at upper and lower positions on both left and right sides of the front face of the door frame (11), and the door frame (11) is arranged inside a building, and slot blocks (12) are fixedly connected at both sides of the front top of the door frame (11) near the middle, and the two slot blocks (12) are located on the side away from the two snap-on assemblies (4).

3. The explosion-proof civil air defense door according to claim 2, characterized in that: The two explosion-proof door assemblies (2) comprise two explosion-proof doors (21), the front tops of the two explosion-proof doors (21) are fixedly connected with a lap block (22), the upper and lower fronts of the two explosion-proof doors (21) are fixedly connected with a limit slider (23), and the fronts of the two explosion-proof doors (21) are fixedly connected with an adjustment latch assembly (24).

4. The explosion-proof and personal air defense door according to claim 3, characterized in that: A rotating connection shaft (25) is fixedly connected to the upper and lower sides of the two explosion-proof doors (21) that are far away from each other, and the surfaces of the two rotating connection shafts (25) are rotatably connected to the inner walls of the two rotating hollow columns (13).

5. The explosion-proof civil air defense door according to claim 3, characterized in that: The adjusting latch assembly (24) comprises a fixing block (241), the rear of the fixing block (241) is fixedly connected to the front of the explosion-proof door (21), the inner wall of the fixing block (241) is rotatably connected to a threaded shaft (242), and the outer surface of the threaded shaft (242) is fixedly connected to a handle ring (243) near the front side.

6. The explosion-proof civil air defense door according to claim 5, characterized in that: The outer surface of the threaded shaft (242) is threadedly connected to a driving rod (244), and the upper and lower parts of the driving rod (244) are rotatably connected to a connecting shaft one (245), the surfaces of the two connecting shafts one (245) are rotatably connected to a lower pressure rod (246), and the two lower pressure rods (246) are rotatably connected to a connecting shaft two (247) on the side away from each other, and the outer surfaces of the two connecting shafts two (247) are rotatably connected to a latch shaft (248), and the outer surfaces of the two latch shafts (248) are slidably connected to the inner walls of the two limit sliders (23).

7. The explosion-proof civil air defense door according to claim 3, characterized in that: The snap-on assembly (4) comprises a mounting block (41), the bottom of the mounting block (41) is rotatably connected to a connecting shaft (42), the outer surface of the connecting shaft (42) is rotatably connected to a hook (43), a sliding groove (47) is provided on the top of the hook (43), the surface of the hook (43) overlaps the surface of the overlapping block (22), and the rear side of the mounting block (41) is fixedly connected to the front side of the door frame (11).

8. The explosion-proof civil air defense door according to claim 7, characterized in that: A spring (45) is fixedly connected to the front inner wall of the mounting block (41); a damper (44) is movably sleeved on the outer surface of the spring (45); a slider (46) is fixedly connected to the output end of the damper (44); the bottom surfaces on the left and right sides of the slider (46) slide with the inner wall of the slide groove (47); and the output end of the damper (44) is fixedly connected to the top of the hook (43) close to the front side.

Images