Anti-seismic and heat-insulating civil air defense door

Abstract

The utility model relates to the technical field of civil air defense doors, and discloses an anti-seismic heat-insulation civil air defense door which comprises a door frame, the door frame is connected with a civil air defense door body through hinges, and the surface of the door frame and the surface of the civil air defense door body are provided with a locking assembly capable of being opened and closed and a movable assembly capable of being self-locked. The locking assembly comprises a first cavity, a second cavity, a first rotating plate, a first through hole, a first short rod, a connecting plate, a sliding plate, an inserting rod, a second spring, a handle and an inserting groove, according to the anti-seismic heat-insulation civil air defense door, through the arranged movable assembly, the handle, the annular sleeve, the L-shaped rod and the rotating block are rotated anticlockwise, the inclined face of the clamping block abuts against the inner wall of the clamping groove, and through the third spring, the second short rod, the second through hole and the second rotating plate, the anti-seismic heat-insulation civil air defense door is formed. When the civil air defense door body is locked, the side, away from the inclined face, of the clamping block abuts against the inner wall of the clamping groove, the handle can be limited, self-locking can be conducted, and locking does not need to be operated again.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, specifically a shock-resistant and heat-insulating civil defense door. Background Technology

[0002] Civil defense doors are the entrances and exits of civil defense projects. They play a crucial protective role in the event of natural disasters such as war and earthquakes. They typically possess multiple functions, including waterproofing, explosion-proofing, and resistance to air pollution, ensuring the safety of people's lives and property.

[0003] According to a public notice of a civil defense door (Announcement No.: CN221220258U), in the aforementioned application, by rotating the handle, multiple first pins are driven to insert into their corresponding first pins via a drive gear, a driven gear, a drive rack, and a first sliding plate. The driven gear drives the driven rack to move by meshing with it. The lower end of the second pin is inserted into the corresponding second insertion hole. Rotating the handle causes the fixing block to rotate to the front of the limiting hole and keeps the fixing block in that position. Then, rotating the limiting rod inserts it into the limiting hole to limit the rotation of the handle, preventing the handle from rotating again, thereby locking the door panel and the door frame.

[0004] In the aforementioned application, when locking, the limiting rod needs to be parallel to the limiting hole in order to lock through the thread. Personnel need to continuously keep the handle from turning. However, in the aforementioned application, when the pin is inserted into the hole, the force generated by the reset spring causes the handle to generate a reverse force. Personnel need to continuously support the handle in order to lock through the limiting rod. This is time-consuming and laborious. In addition, personnel need to constantly adjust the position of the handle to make the limiting hole parallel to the limiting rod, which is inefficient. Utility Model Content

[0005] The purpose of this utility model is to provide a shock-resistant and heat-insulating civil defense door to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock-resistant and heat-insulating air-raid shelter door, including a door frame, the door frame being connected to an air-raid shelter door body via hinges, and the surfaces of the door frame and the air-raid shelter door body being provided with an opening and closing locking assembly and a self-locking movable assembly. The locking assembly includes: a cavity one, a cavity two, a rotating plate one, a through hole one, a short rod one, a connecting plate, a sliding plate, a plug rod, a spring two, a handle, and a slot. The movable assembly includes:

[0007] A rotating block is rotatably connected to the surface of the air defense door body. A fixing block is fixed to the surface of the air defense door body, and the output shaft of the handle passes through the fixing block.

[0008] Preferably, the movable component further includes a cavity three, which is formed inside the rotating block. A rotating plate two is rotatably connected to the inner wall of the cavity three. A through hole two is formed on the surface of the rotating plate two. A short rod two is abutted against the inner wall of the through hole two. A locking block is fixed to the surface of the short rod two. A spring three is fixed to the surface of the locking block. The end of the spring three away from the locking block is fixed to the inner wall of the cavity three. The end of the locking block away from the spring three passes through the rotating block, and the locking block is slidably connected to the inner wall of the cavity three. An L-shaped rod is fixed to the surface of the locking block. The end of the L-shaped rod away from the locking block passes through the rotating block. The block has an L-shaped rod that is slidably connected to the rotating block. The end of the L-shaped rod away from the block is fixed with an annular sleeve. The handle passes through the annular sleeve and is slidably connected to the handle. The surface of the fixed block has a slot. When the handle is rotated counterclockwise, the annular sleeve, L-shaped rod, and rotating block rotate synchronously. The inclined surface of the block abuts against the inner wall of the slot. Through spring three, short rod two, through hole two, and rotating plate two, the block can reciprocate into the slot without affecting the normal counterclockwise rotation of the handle. When the body of the air-raid shelter door is locked, the side of the block away from the inclined surface abuts against the inner wall of the slot, which can limit the handle and facilitate quick locking.

[0009] Preferably, cavity one is formed inside the body of the air-raid shelter door, and cavity two is formed inside the body of the air-raid shelter door. A rotating plate one is rotatably connected to the inner wall of cavity one. A through hole one is formed on the surface of rotating plate one. A short rod one is abutted against the inner wall of the through hole one. A connecting plate one is fixed to the surface of short rod one. The connecting plate one is slidably connected to the inner wall of cavity one. The connecting plate one penetrates cavity one and cavity two. A sliding plate one is fixed to the surface of the connecting plate one end away from short rod one. The sliding plate one is slidably connected to the inner wall of cavity two. A plug rod one is fixed to the side of the sliding plate one end away from the connecting plate. The plug rod one end away from the sliding plate one penetrates the body of the air-raid shelter door. The insertion rod is slidably connected to the body of the air-raid shelter door. A second spring is fixed to the surface of the sliding plate. The end of the second spring away from the sliding plate is fixed to the inner wall of the cavity. A handle is provided on the surface of the rotating plate. The output shaft of the handle is fixed to the surface of the rotating plate. The end of the handle away from the rotating plate passes through the body of the air-raid shelter door. The handle is rotatably connected to the body of the air-raid shelter door. A slot is provided on the inner side of the door frame. Rotating the handle counterclockwise causes the rotating plate, through hole, short rod, connecting plate, and sliding plate to move radially in sync, which drives the insertion rod into the slot for locking. Rotating the handle clockwise, in conjunction with the second spring, unlocks the door.

[0010] Preferably, a damper is fixed to the surface of the air-raid shelter door body, and a protective plate is fixed to the end of the damper away from the air-raid shelter door body. A spring is fixed to the surface of the protective plate, and the end of the spring away from the protective plate is fixed to the surface of the air-raid shelter door body. When the air-raid shelter door body is opened, the protective plate can protect the air-raid shelter door body and prevent the air-raid shelter door body from hitting the wall. The damper, together with the spring, can reduce shock and prevent damage to the air-raid shelter door body.

[0011] Preferably, the end of the locking block away from the spring three is set as an inclined surface, so that when it is abutted, the locking block can enter the cavity two.

[0012] Preferably, both through holes two and one are arc-shaped, so that when rotating with rotating plates two and one, they can drive short rod one and short rod two to move radially in sync.

[0013] Preferably, the interior of the air-raid shelter door body is filled with a heat insulation layer and a thermal insulation layer, which improves the thermal insulation effect inside the door.

[0014] Compared with the prior art, this utility model provides a shock-resistant and heat-insulating air defense door, which has the following beneficial effects:

[0015] 1. This earthquake-resistant and heat-insulating air-raid shelter door, through its movable components, allows the handle to be rotated counterclockwise, causing the annular sleeve, L-shaped rod, and rotating block to rotate synchronously. The inclined surface of the locking block abuts against the inner wall of the slot. Through spring three, short rod two, through hole two, and rotating plate two, the locking block can reciprocate into the slot without affecting the normal counterclockwise rotation of the handle. When the air-raid shelter door body is locked, the side of the locking block away from the inclined surface abuts against the inner wall of the slot, which can limit the handle and achieve self-locking without the need for re-operation to lock.

[0016] 2. This earthquake-resistant and heat-insulating fire door, through the locking assembly, can lock by rotating the handle counterclockwise, which causes the rotating plate, through hole, short rod, connecting plate and sliding plate to move radially in sync, and thus drive the insertion rod into the slot. Turning the handle clockwise, in conjunction with spring 2, unlocks the door. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the body, heat insulation layer, and thermal insulation layer of the air-raid shelter door of this utility model;

[0019] Figure 3 This is a side view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the heated room door body of this utility model;

[0021] Figure 5 This is a front view structural diagram of the locking component and the movable component of this utility model;

[0022] Figure 6 This is an exploded view of the active component of this utility model;

[0023] Figure 7 This is a side view of some of the movable components of this utility model;

[0024] Figure 8 This is a front view structural diagram of the door frame and slot of this utility model.

[0025] In the diagram: 1. Door frame; 2. Air raid shelter door body; 3. Heat insulation layer; 4. Thermal insulation layer; 5. Damper; 6. Protective plate; 7. Spring 1; 8. Locking assembly; 80. Cavity 1; 81. Cavity 2; 82. Rotating plate 1; 83. Through hole 1; 84. Short rod 1; 85. Connecting plate; 86. Slide plate; 87. Insert rod; 88. Spring 2; 89. Handle; 800. Slot; 9. Movable assembly; 90. Rotating block; 91. Fixing block; 92. Cavity 3; 93. Rotating plate 2; 94. Through hole 2; 95. Short rod 2; 96. Locking block; 97. Locking groove; 98. Spring 3; 99. L-shaped rod; 900. Annular sleeve. Detailed Implementation

[0026] like Figures 1-8 As shown, this utility model provides a technical solution: a shock-resistant and heat-insulating air-raid shelter door, including a door frame 1, the door frame 1 is connected to an air-raid shelter door body 2 by a hinge, the surfaces of the door frame 1 and the air-raid shelter door body 2 are provided with a locking assembly 8 for opening and closing and a movable assembly 9 capable of self-locking. The locking assembly 8 includes: cavity one 80, cavity two 81, rotating plate one 82, through hole one 83, short rod one 84, connecting plate 85, sliding plate 86, insert rod 87, spring two 88, handle 89, and slot 800. The movable assembly 9 includes: rotating block 90, fixing block 91, cavity three 92, rotating plate two 93, through hole two 94, short rod two 95, locking block 96, locking groove 97, spring three 98, L-shaped rod 99, and ring sleeve 900.

[0027] The rotating block 90 is rotatably connected to the surface of the air-raid shelter door body 2. A fixing block 91 is fixed to the surface of the air-raid shelter door body 2. The output shaft of the handle 89 passes through the fixing block 91. The movable component 9 also includes a cavity 3 92, which is opened inside the rotating block 90. ​​A rotating plate 2 93 is rotatably connected to the inner wall of the cavity 3 92. A through hole 2 94 is opened on the surface of the rotating plate 2 93. A short rod 2 95 abuts against the inner wall of the through hole 2 94. A locking block 96 is fixed to the surface of the short rod 2 95. A spring 98 is fixed to the surface of a cavity 92. The end of the spring 98 furthest from the locking block 96 is fixed to the inner wall of the cavity 92. The end of the locking block 96 furthest from the spring 98 passes through the rotating block 90 and is slidably connected to the inner wall of the cavity 92. An L-shaped rod 99 is fixed to the surface of the locking block 96. The end of the L-shaped rod 99 furthest from the locking block 96 passes through the rotating block 90 and is slidably connected to the rotating block 90. ​​An annular sleeve 900 is fixed to the end of the L-shaped rod 99 furthest from the locking block 96. A handle 8... A through-ring sleeve 900 is slidably connected to a handle 89. A groove 97 is provided on the surface of the fixing block 91. The end of the locking block 96 away from the spring 98 is set as an inclined surface. When the handle 89 is rotated counterclockwise, the ring sleeve 900, L-shaped rod 99, and rotating block 90 rotate synchronously. The inclined surface of the locking block 96 abuts against the inner wall of the groove 97, allowing the locking block 96 to enter the cavity 92. Simultaneously, the spring 98 is compressed. As the locking block 96 moves, it drives the short rod 95 to move. When the surface of short rod 95 abuts against the inner wall of through hole 94, it can drive the rotating plate 93 to rotate forward. When the position of the locking block 96 is parallel to the locking groove 97, the spring 98 is released, which allows the locking block 96 to enter the locking groove 97. At the same time, short rod 95 moves accordingly, driving the rotating plate 93 to rotate in reverse, which allows each locking block 96 to move radially synchronously. When the body of the blast door 2 is locked, the side of the locking block 96 away from the inclined surface abuts against the inner wall of the locking groove 97, which can limit the handle 89 and facilitate quick locking.

[0028] A cavity 80 is formed inside the body 2 of the air-raid shelter door. A cavity 81 is formed inside the body 2 of the air-raid shelter door. A rotating plate 82 is rotatably connected to the inner wall of cavity 80. A through hole 83 is formed on the surface of the rotating plate 82. A short rod 84 is abutted against the inner wall of the through hole 83. A connecting plate 85 is fixed to the surface of the short rod 84. The connecting plate 85 is slidably connected to the inner wall of cavity 80 and passes through cavity 80 and cavity 81. A sliding plate 86 is fixed to the surface of the connecting plate 85 away from the short rod 84. The sliding plate 86 is slidably connected to the inner wall of cavity 81. A plug rod 87 is fixed to the side of the sliding plate 86 away from the connecting plate 85. The end of the plug rod 87 away from the sliding plate 86 passes through the body 2 of the air-raid shelter door and is slidably connected to the body 2 of the air-raid shelter door. A spring 88 is fixed to the surface of the slide plate 86. The end of the spring 88 away from the slide plate 86 is fixed to the inner wall of the cavity 81. A handle 89 is provided on the surface of the rotating plate 82. The output shaft of the handle 89 is fixed to the surface of the rotating plate 82. The end of the output shaft of the handle 89 away from the rotating plate 82 passes through the body of the air defense door 2, and the handle 89 is rotatably connected to the body of the air defense door 2. A slot 800 is provided on the inner side of the door frame 1. Rotating the handle 89 counterclockwise will drive the rotating plate 82 to rotate synchronously. At this time, the inner wall of the through hole 83 abuts against the surface of the short rod 84, which will cause the connecting plates 85 and the slide plate 86 to move radially synchronously, which will drive the insertion rod 87 into the slot 800 for locking. Rotating the handle 89 clockwise, in conjunction with the spring 88, will unlock the door.

[0029] A damper 5 is fixed to the surface of the air-raid shelter door body 2. A protective plate 6 is fixed to the end of the damper 5 away from the air-raid shelter door body 2. A spring 7 is fixed to the surface of the protective plate 6. The end of the spring 7 away from the protective plate 6 is fixed to the surface of the air-raid shelter door body 2. When the air-raid shelter door body 2 is opened, the protective plate 6 can protect the air-raid shelter door body 2 and prevent it from hitting the wall. The damper 5, together with the spring 7, can reduce shock and prevent damage to the air-raid shelter door body 2. The through holes 2 94 and 1 83 are both set to arc shape. When the rotating plates 2 93 and 1 82 rotate, they can drive the short rods 1 84 and 2 95 to move radially in sync. The interior of the air-raid shelter door body 2 is filled with a heat insulation layer 3 and a thermal insulation layer 4, which improves the thermal insulation effect inside the door.

[0030] When locking is required, the door body 2 is rotated via the hinge to close the door body 2 with the door frame 1. Then, turning the handle 89 counterclockwise causes the rotating plate 82 to rotate synchronously. At this time, the inner wall of the through hole 83 abuts against the surface of the short rod 84, causing the connecting plates 85 and the sliding plate 86 to move radially synchronously. This allows the insertion rod 87 to enter the slot 800, thus locking the door. Simultaneously, when locking, the spring 88 is compressed. Also, when the handle 89 is turned counterclockwise, the annular sleeve 900, the L-shaped rod 99, and the rotating block 90 rotate synchronously. At this time, the inclined surface of the locking block 96 abuts against the inner wall of the slot 97, thus locking the door. Entering the cavity 392, spring 398 is compressed, and as the locking block 96 moves, it drives short rod 295 to move. At this time, the surface of short rod 295 abuts against the inner wall of through hole 294, which drives rotating plate 293 to rotate forward. When the locking block 96 is parallel to the locking groove 97, spring 398 is released, allowing the locking block 96 to enter the locking groove 97. At the same time, short rod 295 moves accordingly, driving rotating plate 293 to rotate in reverse, so that all locking blocks 96 move radially synchronously. When the air defense door body 2 is locked, the side of the locking block 96 away from the inclined surface abuts against the inner wall of the locking groove 97, which limits the handle 89 for quick locking. When it is necessary to open the air defense door... When the door body is in position 2, pull the annular sleeve 900 closer to the handle 89. At this time, the annular sleeve 900 drives the L-shaped rod 99 to move synchronously, and the L-shaped rod 99 drives the locking block 96 to move synchronously. At this time, the locking block 96 disengages from the slot 97, and through the short rod 2 95, the rotating plate 2 93 reverses, so that the short rod 2 95 and the locking block 96 move radially synchronously and disengage from the slot 97. At this time, the handle 89 can rotate clockwise normally. At this time, the spring 2 88 is released, which drives the insertion rod 87 to disengage from the slot 800. At the same time, the sliding plate 86 drives the connecting plate 85 and the short rod 1 84 to move radially, so that the rotating plate 1 82 reverses and resets, thus saving personnel. The force required to open the main body 2 of the air-raid shelter door can quickly open it. Simultaneously, the protective plate 6, damper 5, and spring 7 provide protection for the main body 2 during opening, preventing it from impacting the wall. The damper 5, in conjunction with spring 7, reduces shock and prevents damage to the main body 2. Furthermore, the included heat insulation layer 3 and heat insulation layer 4, made of perlite insulation board (a new type of external wall insulation material integrating heat insulation, heat insulation, and waterproofing), enhance the insulation effect inside the door.

[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A seismic-resistant and heat-insulating air-raid shelter door, comprising a door frame (1), characterized in that: The door frame (1) is connected to the air defense door body (2) by a hinge. The door frame (1) and the air defense door body (2) are provided with a locking component (8) for opening and closing and a movable component (9) for self-locking. The locking component (8) includes: cavity one (80), cavity two (81), rotating plate one (82), through hole one (83), short rod one (84), connecting plate (85), sliding plate (86), insert rod (87), spring two (88), handle (89), and slot (800). The movable component (9) includes: rotating block (90). The rotating block (90) is rotatably connected to the surface of the air defense door body (2). The surface of the air defense door body (2) is fixed with a fixing block (91). The output shaft of the handle (89) passes through the fixing block (91).

2. The earthquake-resistant and heat-insulating air-raid shelter door according to claim 1, characterized in that: The movable component (9) also includes a cavity three (92), which is located inside the rotating block (90). A rotating plate two (93) is rotatably connected to the inner wall of the cavity three (92). A through hole two (94) is provided on the surface of the rotating plate two (93). A short rod two (95) is abutted against the inner wall of the through hole two (94). A locking block (96) is fixed to the surface of the short rod two (95). A spring three (98) is fixed to the surface of the locking block (96). One end of the spring three (98) away from the locking block (96) is fixed to the inner wall of the cavity three (92). The locking block (96) is away from the spring three. One end of (98) passes through the rotating block (90), and the locking block (96) is slidably connected to the inner wall of the cavity three (92). An L-shaped rod (99) is fixed on the surface of the locking block (96). The end of the L-shaped rod (99) away from the locking block (96) passes through the rotating block (90), and the L-shaped rod (99) is slidably connected to the rotating block (90). An annular sleeve (900) is fixed on the end of the L-shaped rod (99) away from the locking block (96). The handle (89) passes through the annular sleeve (900), and the annular sleeve (900) is slidably connected to the handle (89). A slot (97) is opened on the surface of the fixing block (91).

3. The earthquake-resistant and heat-insulating air-raid shelter door according to claim 2, characterized in that: The cavity one (80) is located inside the body of the air-raid shelter door (2). The body of the air-raid shelter door (2) has a cavity two (81) inside. The inner wall of the cavity one (80) is rotatably connected to a rotating plate one (82). The surface of the rotating plate one (82) has a through hole one (83). The inner wall of the through hole one (83) abuts against a short rod one (84). The surface of the short rod one (84) is fixed with a connecting plate (85). The connecting plate (85) is slidably connected to the inner wall of the cavity one (80). The connecting plate (85) passes through the cavity one (80) and the cavity two (81). The surface of the connecting plate (85) away from the short rod one (84) is fixed with a sliding plate (86). The sliding plate (86) is slidably connected to the inner wall of the cavity two (81). 86) A plug rod (87) is fixed on the side away from the connecting plate (85). The end of the plug rod (87) away from the slide plate (86) passes through the body of the air defense door (2) and the plug rod (87) is slidably connected to the body of the air defense door (2). A spring two (88) is fixed on the surface of the slide plate (86). The end of the spring two (88) away from the slide plate (86) is fixed on the inner wall of the cavity two (81). A handle (89) is provided on the surface of the rotating plate one (82). The output shaft of the handle (89) is fixed on the surface of the rotating plate one (82). The end of the output shaft of the handle (89) away from the rotating plate one (82) passes through the body of the air defense door (2) and the handle (89) is rotatably connected to the body of the air defense door (2). A slot (800) is opened on the inner side of the door frame (1).

4. The earthquake-resistant and heat-insulating air-raid shelter door according to claim 1, characterized in that: A damper (5) is fixed to the surface of the air defense door body (2). A protective plate (6) is fixed to the end of the damper (5) away from the air defense door body (2). A spring (7) is fixed to the surface of the protective plate (6). The end of the spring (7) away from the protective plate (6) is fixed to the surface of the air defense door body (2).

5. A shock-resistant and heat-insulating air-raid shelter door according to claim 2, characterized in that: The end of the card block (96) away from the spring three (98) is set as an inclined surface.

6. A shock-resistant and heat-insulating air-raid shelter door according to claim 3, characterized in that: Both through hole 2 (94) and through hole 1 (83) are set to be arc-shaped.

7. The earthquake-resistant and heat-insulating air-raid shelter door according to claim 1, characterized in that: The interior of the air defense door body (2) is filled with a heat insulation layer (3) and a heat preservation layer (4).

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