Anti-seismic and heat-insulating civil air defense door

Abstract

The invention provides an anti-seismic and heat-insulation type civil air defense door, and belongs to the field of civil air defense doors, the anti-seismic and heat-insulation type civil air defense door comprises a door frame and a civil air defense door, the civil air defense door is rotatably connected to the outer wall of the door frame, the anti-seismic and heat-insulation type civil air defense door further comprises a locking assembly located on the outer wall of the civil air defense door, a clamping assembly located on the outer wall of the door frame and a stabilizing assembly, the stabilizing assembly is located on the outer wall of the civil defense door, and the locking assembly comprises a frame, a handle, a gear, a transverse rod, a connecting rod and a limiting frame. According to the civil air defense door, a handle is rotated to drive a gear to rotate, a transverse rod pushes a connecting rod to move under the action of a tooth groove, a trapezoidal block is clamped into a limiting frame, at the moment, the connecting effect between the door frame and the civil air defense door is enhanced through the trapezoidal block and the limiting frame, and the locking strength between the door frame and the civil air defense door is improved; the civil air defense door solves the problem that an existing civil air defense door can be separated from a door frame hinge when facing explosive shock waves, and consequently the civil air defense door is not convenient to open subsequently.

Description

Technical Field

[0001] The present invention relates to the field of civil air defense doors, and more specifically, to an earthquake-resistant and heat-insulating civil air defense door. Background Art

[0002] Civil air defense doors are the doors at the entrances and exits of civil air defense projects. The classification of civil air defense doors is relatively distinct, including various civil air defense equipment such as ordinary single and double-leaf airtight blast doors and airtight doors, and single and double-leaf airtight blast doors and airtight doors with movable thresholds. Civil air defense doors have fire resistance. In the event of a fire in a building, these civil air defense doors can play a role in preventing the spread of fire. They can confine the fire to a certain area, buying time for personnel evacuation and fire fighting and rescue. At the same time, they can also protect important facilities inside the air defense project from being damaged by fire.

[0003] Existing civil air defense doors are of an integral structure. After an explosion occurs, the shock wave generated by the explosion will directly act on the surface of the civil air defense door, resulting in damage and deformation on the surface of the civil air defense door under the action of the explosion shock wave, and separation between the door and the door frame hinge, which is not convenient for subsequent opening of the civil air defense door. How to solve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides an earthquake-resistant and heat-insulating civil air defense door, aiming to solve the problem that existing civil air defense doors will separate from the door frame hinge when facing an explosion shock wave, resulting in inconvenience for subsequent opening of the civil air defense door.

[0005] The present invention is implemented as follows:

[0006] The present invention provides an earthquake-resistant and heat-insulating civil air defense door, including a door frame and a civil air defense door. The civil air defense door is rotatably connected to the outer wall of the door frame, and further includes:

[0007] A locking assembly, which is located on the outer wall of the civil air defense door and is used to enhance the connection strength between the door frame and the civil air defense door and reduce the connection pressure on the hinge.

[0008] A clamping assembly, which is located on the outer wall of the door frame and is used to enhance the locking effect of the locking assembly on the door frame and the civil air defense door.

[0009] A stabilizing assembly, which is located on the outer wall of the civil air defense door and is used to ensure that the components inside the locking assembly can move stably, ensuring the locking effect of the locking assembly on the door frame and the civil air defense door.

[0010] Preferably, the locking assembly includes a frame, a handle, a gear, a cross bar, a connecting rod and a limiting frame. The frame is fixedly connected to the outer wall of the civil air defense door. The handle is installed on the outer wall of the frame. The gear is arranged inside the frame. The cross bar is installed on the outer wall of the gear. The connecting rod is arranged outside the frame. The limiting frame is fixedly connected to the outer wall of the door frame.

[0011] Preferably, the output shaft of the handle penetrates through the outer wall of the frame and extends into the interior of the frame. The outer wall of the output shaft of the handle is rotatably connected to the inner wall of the frame through which it penetrates. One end of the handle extending into the interior of the frame is fixedly connected to the outer wall of the gear.

[0012] By adopting the above technical solution, the rotation of the handle can drive the gear to rotate through the output shaft.

[0013] Preferably, a tooth groove is formed on the outer wall of the cross bar. The gear meshes with the tooth groove. One end of the cross bar penetrates through the inner wall of the frame and is slidably connected to the inner wall of the frame through which it penetrates. One end of the cross bar extending to the outer wall of the frame is fixedly connected to the connecting rod arranged on the outer wall of the frame.

[0014] By adopting the above technical solution, when the gear rotates, it will push the cross bar to move inside the frame through the tooth groove. The cross bar can pull the connecting rod to move reciprocally.

[0015] Preferably, the clamping assembly includes a trapezoidal block, a slot, a plug, a push rod, a movable plate and a spring. The trapezoidal block is fixedly connected to the outer wall of the connecting rod. The slot is formed inside the trapezoidal block. The plug is arranged inside the limiting frame. The push rod is installed on the top of the limiting frame. The movable plate is fixedly connected to the top end of the push rod. The spring is installed at the bottom of the movable plate.

[0016] Preferably, the outer wall of the plug is slidably connected to the outer wall of the slot. An inclined surface is formed on the outer wall of the plug. The inclined surface on the outer wall of the trapezoidal block corresponds to the inclined surface on the outer wall of the plug. A ball is installed on the inclined surface of the outer wall of the trapezoidal block.

[0017] By adopting the above technical solution, when the trapezoidal block moves under the drive of the connecting rod, it can push the plug to move through the ball until it moves above the slot and enters the slot through sliding.

[0018] Preferably, the bottom end of the push rod penetrates through the limiting frame and is fixedly connected to the outer wall of the trapezoidal block. The outer wall of the push rod is slidably connected to the inner wall of the limiting frame through which it penetrates. The bottom of the spring is fixedly connected to the top of the limiting frame.

[0019] By adopting the above technical solution, when the insertion block moves under the action of the trapezoidal block, it will push the movable plate to move through the ejector rod and apply a tensile force to the spring. When the insertion block is above the slot, the spring will kick the insertion block through the movable plate and snap it into the interior of the slot.

[0020] Preferably, the stabilizing assembly includes a connecting plate, an outer ring, an outer frame and an inner frame. The connecting plate is fixedly connected to the outer wall of the cross bar, the inner frame is fixedly connected to the inner wall of the frame, the outer frame is fixedly connected to the outer wall of the frame, and the outer ring is arranged on the outer wall of the inner frame.

[0021] Preferably, the connecting rod is located inside the outer frame and is slidably connected to the inner wall of the outer frame. One end of the cross bar is located inside the inner frame and is slidably connected to the inner wall of the inner frame. The outer ring is slidably connected to the inner frame, and the end of the connecting plate away from the cross bar is fixedly connected to the outer wall of the outer ring.

[0022] By adopting the above technical solution, the presence of the outer frame and the inner frame can support the movement of the cross bar, ensure the stability of the cross bar during movement, and the cross bar can drive the outer ring to move on the surface of the inner frame through the connecting plate.

[0023] The beneficial effects of the present invention are:

[0024] 1. Rotate the handle, so that the handle drives the gear to rotate. The cross bar pushes the connecting rod to move under the action of the tooth groove, and makes the trapezoidal block snap into the interior of the limit frame. At this time, the connection effect between the door frame and the civil air defense door is strengthened through the trapezoidal block and the limit frame, and the locking strength between the door frame and the civil air defense door is improved, solving the problem that the existing civil air defense door will separate from the door frame hinge when facing the explosion shock wave, resulting in the inconvenience of subsequent opening of the civil air defense door.

[0025] 2. Since the inclined surface on the side of the insertion block matches the inclined surface of the trapezoidal block, when the trapezoidal block is pushed under the action of the connecting rod, the insertion block will be lifted under the action of the inclined surface and apply a pressure to the spring until the insertion block moves above the slot. At this time, the spring will push the insertion block to descend and snap it into the interior of the slot, thereby completing the fixation of the gear and avoiding the automatic rotation of the gear after the civil air defense door is locked, resulting in the separation of the trapezoidal block from the limit frame.

[0026] 3. When the cross bar moves under the cooperation of the tooth groove and the gear, it will move inside the inner frame and at the same time push the connecting rod to slide inside the outer frame. The presence of the inner frame and the outer frame can ensure the stability of the cross bar and the connecting rod during sliding, ensuring the locking effect between the civil air defense door and the door frame. Description of the Drawings

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0028] Figure 1 is a schematic diagram of the overall structure of an earthquake-resistant and heat-insulating civil air defense door provided by an embodiment of the present invention;

[0029] Figure 2 is the present invention Figure 1 schematic enlarged view of the structure at A in;

[0030] Figure 3 is a schematic diagram of the door frame of an earthquake-resistant and heat-insulating civil air defense door provided by an embodiment of the present invention;

[0031] Figure 4 is a schematic diagram of the clamping assembly of an earthquake-resistant and heat-insulating civil air defense door provided by an embodiment of the present invention;

[0032] Figure 5 is a schematic diagram of the frame structure of an earthquake-resistant and heat-insulating civil air defense door provided by an embodiment of the present invention;

[0033] Figure 6 is a schematic side view of the internal structure of the frame of an earthquake-resistant and heat-insulating civil air defense door provided by an embodiment of the present invention;

[0034] Figure 7 is a schematic rear view of the locking assembly structure of an earthquake-resistant and heat-insulating civil air defense door provided by an embodiment of the present invention;

[0035] Figure 8 is a schematic rear view of the internal structure of the locking assembly of an earthquake-resistant and heat-insulating civil air defense door provided by an embodiment of the present invention.

[0036] In the figure: 1, door frame; 2, civil air defense door; 3, locking assembly; 301, frame; 302, handle; 303, gear; 305, cross bar; 306, connecting rod; 307, limiting frame; 4, clamping assembly; 401, trapezoidal block; 402, slot; 403, plug; 404, ejector rod; 405, movable plate; 406, spring; 5, stabilizing assembly; 501, connecting plate; 502, outer ring; 503, outer frame; 504, inner frame. Detailed embodiments

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Referring to Figures 1-8 , an earthquake-resistant and heat-insulating civil air defense door, comprising a door frame 1 and a civil air defense door 2, the civil air defense door 2 is rotatably connected to the outer wall of the door frame 1, and further comprising:

[0039] A locking assembly 3, the locking assembly 3 is located on the outer wall of the civil air defense door 2, and the locking assembly 3 is used to enhance the connection strength between the door frame 1 and the civil air defense door 2 and reduce the connection pressure of the hinge.

[0040] A clamping assembly 4, the clamping assembly 4 is located on the outer wall of the door frame 1, and the clamping assembly 4 is used to enhance the locking effect of the locking assembly 3 on the door frame 1 and the civil air defense door 2.

[0041] A stabilizing assembly 5, the stabilizing assembly 5 is located on the outer wall of the civil air defense door 2, and the stabilizing assembly 5 is used to ensure that the components inside the locking assembly 3 can move stably, ensuring the locking effect of the locking assembly 3 on the door frame 1 and the civil air defense door 2.

[0042] The locking assembly 3 includes a frame 301, a handle 302, a gear 303, a cross bar 305, a connecting rod 306, and a limiting frame 307. The frame 301 is fixedly connected to the outer wall of the civil air defense door 2, the handle 302 is installed on the outer wall of the frame 301, the gear 303 is arranged inside the frame 301, the cross bar 305 is installed on the outer wall of the gear 303, the connecting rod 306 is arranged outside the frame 301, and the limiting frame 307 is fixedly connected to the outer wall of the door frame 1.

[0043] It should be noted that: the output shaft of the handle 302 penetrates the outer wall of the frame 301 and extends to the inside of the frame 301. The outer wall of the output shaft of the handle 302 is rotatably connected to the inner wall of the frame 301 penetrated. One end of the handle 302 extending into the inside of the frame 301 is fixedly connected to the outer wall of the gear 303. The rotation of the handle 302 can drive the gear 303 to rotate through the output shaft. The outer wall of the cross bar 305 is provided with a tooth groove, and the gear 303 meshes with the tooth groove. One end of the cross bar 305 penetrates the inner wall of the frame 301 and is slidably connected to the inner wall of the frame 301 penetrated. When the gear 303 rotates, it will push the cross bar 305 to move inside the frame 301 through the tooth groove. One end of the cross bar 305 extending to the outer wall of the frame 301 is fixedly connected to the connecting rod 306 arranged on the outer wall of the frame 301, and the cross bar 305 can pull the connecting rod 306 to move reciprocally.

[0044] Rotate the handle 302 so that the handle 302 drives the gear 303 to rotate. Under the action of the tooth groove, the cross bar 305 pushes the connecting rod 306 to move, and the trapezoidal block 401 is inserted into the inside of the limit frame 307. At this time, the connection effect between the door frame 1 and the civil air defense door 2 is strengthened through the trapezoidal block 401 and the limit frame 307, and the locking strength between the door frame 1 and the civil air defense door 2 is improved, solving the problem that the existing civil air defense door 2 will separate from the hinge of the door frame 1 when facing the explosion shock wave, resulting in the inconvenience of subsequent opening of the civil air defense door 2.

[0045] By rotating the handle 302, the handle 302 drives the gear 303 to rotate through the rotating shaft. When the gear 303 rotates, it pushes the cross bar 305 to move through the tooth groove, so that the cross bar 305 pushes the trapezoidal block 401 to move into the inside of the limit frame 307 through the connecting rod 306, completing the locking between the door frame 1 and the civil air defense door 2.

[0046] The clamping component 4 includes a trapezoidal block 401, a slot 402, a plug 403, a push rod 404, a movable plate 405 and a spring 406. The trapezoidal block 401 is fixedly connected to the outer wall of the connecting rod 306. The slot 402 is opened inside the trapezoidal block 401. The plug 403 is arranged inside the limit frame 307. The push rod 404 is installed at the top of the limit frame 307. The movable plate 405 is fixedly connected to the top end of the push rod 404. The spring 406 is installed at the bottom of the movable plate 405.

[0047] It should be noted that: the outer wall of the plug 403 is slidably connected to the outer wall of the slot 402. The outer wall of the plug 403 is provided with an inclined surface. The inclined surface on the outer wall of the trapezoidal block 401 corresponds to the inclined surface on the outer wall of the plug 403. The outer wall of the trapezoidal block 401 is provided with a ball. When the trapezoidal block 401 moves under the drive of the connecting rod 306, it can push the plug 403 to move through the ball until it moves above the slot 402 and enters the inside of the slot 402 by sliding. The bottom end of the push rod 404 penetrates the limit frame 307 and is fixedly connected to the outer wall of the trapezoidal block 401. The outer wall of the push rod 404 is slidably connected to the inner wall of the limit frame 307 penetrated. The bottom of the spring 406 is fixedly connected to the top of the limit frame 307. When the plug 403 moves under the action of the trapezoidal block 401, it will push the movable plate 405 to move through the push rod 404 and apply a pulling force to the spring 406. When the plug 403 is located above the slot 402, the spring 406 will kick the plug 403 through the movable plate 405 to be inserted into the inside of the slot 402.

[0048] Since the inclined surface on the side of the insert block 403 matches the inclined surface of the trapezoidal block 401, when the trapezoidal block 401 is pushed under the action of the connecting rod 306, the insert block 403 will be lifted under the action of the inclined surface and apply pressure to the spring 406 until the insert block 403 moves above the slot 402. At this time, the spring 406 will push the insert block 403 to descend and snap into the inside of the slot 402, thus completing the fixation of the gear 303 and preventing the gear 303 from rotating automatically after the civil air defense door 2 is locked, which may cause the trapezoidal block 401 to separate from the limit frame 307.

[0049] When the trapezoidal block 401 moves under the drive of the connecting rod 306, it will push the insert block 403 to move through the inclined surface and the ball of the trapezoidal block 401, so that the insert block 403 pushes the movable plate 405 to move through the ejector rod 404 and applies a pulling force to the spring 406. When the slot 402 moves to the lower part of the insert block 403 along with the trapezoidal block 401, the spring 406 will pull the insert block 403 to reset through the movable plate 405 and the ejector rod 404 and snap into the inside of the slot 402 to complete the rotational limit of the gear 303.

[0050] The stabilizing assembly 5 includes a connecting plate 501, an outer ring 502, an outer frame 503 and an inner frame 504. The connecting plate 501 is fixedly connected to the outer wall of the cross bar 305, the inner frame 504 is fixedly connected to the inner wall of the frame 301, the outer frame 503 is fixedly connected to the outer wall of the frame 301, and the outer ring 502 is arranged on the outer wall of the inner frame 504.

[0051] It should be noted that: the connecting rod 306 is located inside the outer frame 503 and is slidably connected to the inner wall of the outer frame 503. One end of the cross bar 305 is located inside the inner frame 504 and is slidably connected to the inner wall of the inner frame 504. The outer ring 502 is slidably connected to the inner frame 504. The end of the connecting plate 501 away from the cross bar 305 is fixedly connected to the outer wall of the outer ring 502. The existence of the outer frame 503 and the inner frame 504 can support the movement of the cross bar 305 and ensure the stability of the cross bar 305 during the movement. The cross bar 305 can drive the outer ring 502 to move on the surface of the inner frame 504 through the connecting plate 501.

[0052] When the cross bar 305 moves under the cooperation of the tooth groove and the gear 303, it will move inside the inner frame 504 and at the same time push the connecting rod 306 to slide inside the outer frame 503. The existence of the inner frame 504 and the outer frame 503 can ensure the stability of the cross bar 305 and the connecting rod 306 during the sliding process and ensure the locking effect between the civil air defense door 2 and the door frame 1.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An earthquake-resistant and heat-insulating civil air defense door, comprising a door frame (1) and a civil air defense door (2), wherein the civil air defense door (2) is rotatably connected to the outer wall of the door frame (1), and is characterized in that: It further includes: A locking assembly (3), the locking assembly (3) is located on the outer wall of the civil air defense door (2), and the locking assembly (3) is used to enhance the connection strength between the door frame (1) and the civil air defense door (2) and reduce the connection pressure of the hinge; A clamping assembly (4), the clamping assembly (4) is located on the outer wall of the door frame (1), and the clamping assembly (4) is used to enhance the locking effect of the locking assembly (3) on the door frame (1) and the civil air defense door (2); A stabilizing assembly (5), the stabilizing assembly (5) is located on the outer wall of the civil air defense door (2), and the stabilizing assembly (5) is used to ensure that the components inside the locking assembly (3) can move stably, ensuring the locking effect of the locking assembly (3) on the door frame (1) and the civil air defense door (2).

2. The anti-seismic and heat-insulating civil air defense door according to claim 1, characterized in that: The locking assembly (3) includes a frame (301), a handle (302), a gear (303), a cross bar (305), a connecting rod (306) and a limiting frame (307). The frame (301) is fixedly connected to the outer wall of the civil air defense door (2), the handle (302) is installed on the outer wall of the frame (301), the gear (303) is arranged inside the frame (301), the cross bar (305) is installed on the outer wall of the gear (303), the connecting rod (306) is arranged outside the frame (301), and the limiting frame (307) is fixedly connected to the outer wall of the door frame (1).

3. The anti-seismic and heat-insulating civil air defense door according to claim 2, characterized in that: The output shaft of the handle (302) penetrates the outer wall of the frame (301) and extends to the inside of the frame (301). The outer wall of the output shaft of the handle (302) is rotatably connected to the inner wall of the frame (301) that is penetrated, and the end of the handle (302) extending to the inside of the frame (301) is fixedly connected to the outer wall of the gear (303).

4. The anti-seismic and heat-insulating civil air defense door according to claim 3, characterized in that: Tooth grooves are provided on the outer wall of the cross bar (305), the gear (303) meshes with the tooth grooves. One end of the cross bar (305) penetrates the inner wall of the frame (301) and is slidably connected to the inner wall of the frame (301) that is penetrated. The end of the cross bar (305) extending to the outer wall of the frame (301) is fixedly connected to the connecting rod (306) arranged on the outer wall of the frame (301).

5. The anti-seismic and heat-insulating civil air defense door according to claim 4, wherein: The clamping assembly (4) includes a trapezoidal block (401), a slot (402), a plug (403), a push rod (404), a movable plate (405) and a spring (406). The trapezoidal block (401) is fixedly connected to the outer wall of the connecting rod (306), the slot (402) is opened inside the trapezoidal block (401), the plug (403) is arranged inside the limiting frame (307), the push rod (404) is installed on the top of the limiting frame (307), the movable plate (405) is fixedly connected to the top of the push rod (404), and the spring (406) is installed at the bottom of the movable plate (405).

6. The anti-seismic and heat-insulating civil air defense door according to claim 5, characterized in that: The outer wall of the plug (403) is slidably connected to the outer wall of the slot (402). An inclined surface is provided on the outer wall of the plug (403), and the inclined surface on the outer wall of the trapezoidal block (401) corresponds to the inclined surface on the outer wall of the plug (403). Ball bearings are installed on the inclined surface of the outer wall of the trapezoidal block (401).

7. An earthquake-resistant and heat-insulating civil air defense door according to claim 6, characterized in that: The bottom end of the ejector rod (404) penetrates through the limit frame (307) and is fixedly connected to the outer wall of the trapezoidal block (401). The outer wall of the ejector rod (404) is slidably connected to the inner wall of the limit frame (307) that is penetrated. The bottom of the spring (406) is fixedly connected to the top of the limit frame (307).

8. The anti-seismic and heat-insulating civil air defense door according to claim 7, characterized in that: The stabilizing assembly (5) includes a connecting plate (501), an outer ring (502), an outer frame (503) and an inner frame (504). The connecting plate (501) is fixedly connected to the outer wall of the cross bar (305). The inner frame (504) is fixedly connected to the inner wall of the frame (301). The outer frame (503) is fixedly connected to the outer wall of the frame (301). The outer ring (502) is arranged on the outer wall of the inner frame (504).

9. The anti-seismic and heat-insulating civil air defense door according to claim 8, wherein: The connecting rod (306) is located inside the outer frame (503) and is slidably connected to the inner wall of the outer frame (503). One end of the cross bar (305) is located inside the inner frame (504) and is slidably connected to the inner wall of the inner frame (504). The outer ring (502) is slidably connected to the inner frame (504). One end of the connecting plate (501) away from the cross bar (305) is fixedly connected to the outer wall of the outer ring (502).

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