Sealing device for civil air defense door with movable doorsill

Abstract

The utility model discloses a movable doorsill civil air defense door sealing device which comprises a door leaf body, a door frame, a supporting frame and a doorsill, a rotating shaft and an auxiliary shaft are rotationally installed on the two sides of the door frame respectively, the rotating shaft is connected with the door leaf body, circular truncated cones are arranged on the rotating shaft and the auxiliary shaft, and guiding road sections are designed on the peripheries of the circular truncated cones. Comprising a low-level road section, an inclined road section and a high-level road section, a movable supporting frame is installed at the bottom of a door frame, a doorsill is installed on the supporting frame, a connecting column making contact with a rotating shaft and an auxiliary shaft is arranged on the supporting frame, a plurality of elastic pieces are arranged on the supporting frame and push the connecting column on the supporting frame to abut against a circular truncated cone, and the rotating shaft is in transmission connection with the auxiliary shaft. According to the design, normal lifting of the doorsill is achieved through cooperation of the circular truncated cone guiding road section and the connecting column and the pushing effect of the elastic piece, meanwhile, stable rotation and stable supporting of the door leaf are guaranteed, the sealing performance and safety of the civil air defense door are improved, and the civil air defense door is suitable for the fields such as civil air defense projects with the high sealing requirement.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of movable threshold civil air defense door, concretely relates to a movable threshold civil air defense door sealing device. BACKGROUND

[0002] The civil air defense door is the door of the entrance and exit of the people's air defense project, and the movable threshold civil air defense door is a special door in the people's air defense project, which is a protective measure with adjustable height, and its characteristics are that the threshold is not installed in normal times, the ground is kept flat, and it is convenient for personnel and vehicles to pass through, and the threshold can be quickly installed to meet the requirements of the protective and sealing functions in the time of protection, such as war time, the design enables the people's air defense project to quickly realize the conversion of normal times and war time functions, and the movable threshold civil air defense door is an entrance and exit protective measure with the advantages of adjustable height, high safety and convenient management, and has been widely applied in the people's air defense project and plays an important role, at present, the existing civil air defense door has two conditions, the first condition is that the threshold is not set, and the gap between the civil air defense door and the door frame is large in the use process of the threshold-free civil air defense door, the sealing performance of the civil air defense door is poor, and the second condition is that the threshold is set, but the threshold is higher than the ground and is inconvenient to disassemble, and the use process is prone to cause the passing people to be hindered, and the passing people are prone to stumble, based on the above problems, the technical scheme for solving the above problems is proposed. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at the deficiencies in the above-mentioned technology, and provides a movable threshold civil air defense door sealing device, which aims at solving the problems in the above-mentioned technology.

[0004] The utility model provides a movable threshold civil air defense door sealing device, including door leaf body, door frame, support frame and threshold, its characterized in that, the both sides of door frame are rotatably provided with rotating shaft and auxiliary shaft, the rotating shaft is connected with door leaf body, and the rotating shaft and auxiliary shaft are all provided with circular table, the periphery of circular table is provided with guide path section, the guide path section is composed of low flat path section, inclined path section and high flat path section, the bottom of door frame is movably installed with support frame, the support frame is provided with threshold, and the both ends of support frame are provided with connecting column that abuts against two circular tables, a plurality of elastic pieces are arranged on the support frame, the plurality of elastic pieces act on the support frame to drive the connecting column on the support frame to abut against the circular table, and the rotating shaft and auxiliary shaft are in transmission connection.

[0005] Preferably, the elastic piece is a spring.

[0006] Preferably, the connecting column is a cylinder.

[0007] Preferably, the rotating shaft and the auxiliary shaft are connected through a belt drive.

[0008] Preferably, the inclined section has a span distance in the vertical direction greater than the height of the threshold.

[0009] Preferably, a sealing gasket is arranged on the threshold.

[0010] Preferably, a handle is arranged on the door body, and an anti-slip layer is arranged on the handle.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] The utility model provides a kind of movable threshold civil air defence door sealing device, when pushing open civil air defence door, door body rotates and drives rotation shaft and auxiliary shaft to rotate, the round table on rotation shaft and auxiliary shaft is synchronously followed rotation, the connecting column on support frame starts to move along the path of guiding section on round table, the connecting column on support frame moves from the starting point of low flat section to high flat section, under the restriction of path on round table, connecting column is pushed down, drive the threshold on support frame to move down, threshold has been completely stored to ground, threshold always keeps the state of being stored in ground in the process of continuing to push open door subsequently, when needing to close civil air defence door, the connecting column on support frame returns along original path, starts to move along high flat section, finally reaches low flat section along inclined section, support frame is pushed and moves up under the elastic force of elastic member, drive the threshold on support frame to protrude ground and abut with door body, by above-mentioned structural design, threshold can be flexibly linked with the opening and closing of civil air defence door, guarantee the sealing property of civil air defence door while solving the problem of obstruction to people by threshold.

[0013] In specific use, when door is gradually pushed open, the angle of pushing open reaches 30 degrees, the connecting column on support frame has moved to high flat section from the starting point of low flat section through inclined section, in the process of continuing to push open door, connecting column continues to move along high flat section, and threshold keeps storage state, when closing civil air defence door, connecting column returns along original path, drive the threshold on support frame to protrude ground and abut with door body. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in embodiment description, obviously, the drawings in the following description are only preferred embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Fig. 1 It is a schematic view of the utility model kind movable threshold civil air defence door sealing device;

[0016] Fig. 2 It is the round table schematic view of the utility model kind movable threshold civil air defence door sealing device;

[0017] In the figure, 1 - door body, 2 - door frame, 3 - support frame, 4 - door sill, 5 - rotating shaft, 6 - auxiliary shaft, 7 - circular table, 8 - connecting column, 9 - elastic piece, 10 - belt, 11 - handle, 12 - guide section, 121 - low flat section, 122 - inclined section, 123 - high flat section. DETAILED DESCRIPTION

[0018] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the application, but it cannot be understood as the limitation of the protection scope of the application.

[0019] Example 1:

[0020] As Figs. 1-2 shown, the utility model provides a kind of active door sill civil air defense door sealing device, including door body 1, door frame 2, support frame 3 and door sill 4, it is characterized in that, the both sides of door frame 2 are rotationally provided with rotating shaft 5 and auxiliary shaft 6, the rotating shaft 5 is connected with the door body 1, the rotating shaft 5 and the auxiliary shaft 6 are all provided with circular table 7, the periphery of circular table 7 is provided with guide section 12, guide section 12 is composed of low flat section 121, inclined section 122 and high flat section 123, the bottom of door frame 2 is movably installed with support frame 3, support frame 3 is provided with door sill 4, the both ends of support frame 3 are provided with connecting column 8 for abutting with two circular tables 7, a plurality of elastic pieces 9 are provided on support frame 3, a plurality of elastic pieces 9 act on support frame 3 to drive connecting column 8 on support frame 3 to abut on circular table 7, the rotating shaft 5 and the auxiliary shaft 6 are drivingly connected.

[0021] The utility model provides a kind of active threshold civil air defence door sealing device, when pushing open civil air defence door, door body 1 rotates and drives rotating shaft 5 and auxiliary shaft 6 to rotate, the round table 7 on rotating shaft 5 and auxiliary shaft 6 is synchronous with rotation, the connecting column 8 on support frame 3 moves along the path of the guide path section 12 on round table 7, the connecting column 8 on support frame 3 moves from the starting point of low flat section 121 to high flat section 123 through inclined section 122, under the restriction of the path on round table 7, connecting column 8 is pushed down, drive threshold 4 on support frame 3 to move down, threshold 4 has been completely housed to ground, threshold 4 always keeps the state of being housed in ground in the process of continuing to push open door subsequently, when needing to close civil air defence door, the connecting column 8 on support frame 3 returns along the original path, moves along high flat section 123, finally reaches low flat section 121 through inclined section 122, support frame 3 is pushed and moves up under the elastic force of elastic member 9, drive threshold 4 on support frame 3 to extend ground and abut with door body 1, by the above structural design, threshold 4 can be flexibly linked with the opening and closing of civil air defence door, ensure the sealing property of civil air defence door, and also solve the problem of threshold 4 to people's obstruction.

[0022] In specific use, when door is gradually pushed open, the angle of pushing open reaches 30 degrees, the connecting column 8 on support frame 3 moves from the starting point of low flat section 121 to high flat section 123 through inclined section 122, in the process of continuing to push open door, connecting column 8 continues to move along high flat section 123, and threshold 4 keeps the housed state, when closing civil air defence door, connecting column 8 returns along the original path, drive threshold 4 on support frame 3 to extend ground and abut with door body 1.

[0023] Embodiment 2:

[0024] As Figs. 1-2 Indicated, in the technical solution of embodiment 1, in the technical solution, the elastic member 9 is spring.

[0025] Further, the connecting column 8 is cylindrical.

[0026] Further, the rotating shaft 5 and the auxiliary shaft 6 are connected by belt 10.

[0027] Further, the inclined section 122 is greater than the height of the threshold 4 in vertical direction. The distance of the connecting column in vertical direction is greater than the actual height of the threshold 4, which ensures that the threshold 4 can be completely housed into the ground or fully contact with the bottom of the door body.

[0028] Further, the threshold 4 is provided with a sealing gasket. The sealing gasket can seal the bottom of the door body 1 and the threshold 4, and enhance the sealing effect.

[0029] Further, the door body 1 is provided with a handle 11, and the handle 11 is provided with an anti-skid layer. The handle 11 is arranged on the door body 1, so as to facilitate people to open or close the door body 1.

[0030] The working principle of the sealing device of the threshold 4 of the security door is as follows:

[0031] When the security door is pushed open, the door body 1 rotates to drive the rotating shaft 5 and the auxiliary shaft 6 to rotate, and the circular table 7 on the rotating shaft 5 and the auxiliary shaft 6 synchronously rotates, the connecting column 8 on the support frame 3 starts to move along the path of the guiding path 12 on the circular table 7, passes through the low flat path 121 and the inclined path 122, and finally moves to the high flat path 123. Under the limitation of the path on the circular table 7, the connecting column 8 is compressed downward, and the threshold 4 on the support frame 3 is driven to move downward until the threshold 4 is completely stored on the ground. When the security door needs to be closed, the connecting column 8 on the support frame 3 starts to move along the high flat path 123, passes through the inclined path 122, and finally reaches the low flat path 121. Under the elastic force of the elastic member 9, the support frame 3 is pushed to move upward, and the threshold 4 on the support frame 3 is driven to extend out of the ground and abut against the door body 1. The sealing gasket on the threshold 4 is in close contact with the bottom of the door body 1, and the sealing effect is maintained.

[0032] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and modifications to the technical scheme of the present application, or modify it into equivalent embodiments with equivalent changes, without departing from the technical scheme of the present application. Therefore, any modification, change and modification of the above embodiments within the technical scheme of the present application, and equivalent changes and modifications, all belong to the protection scope of the present application.

Claims

1. A sealing device for a fire-fighting door with a movable threshold, comprising a door leaf body (1), a door frame (2), a support frame (3), and a threshold (4), characterized in that... The door frame (2) is provided with a rotating shaft (5) and an auxiliary shaft (6) on both sides respectively, the rotating shaft (5) is connected with the door leaf body (1), the rotating shaft (5) and the auxiliary shaft (6) are provided with a circular truncated cone (7), the periphery of the circular truncated cone (7) is provided with a guide path section (12), the guide path section (12) is composed of a low flat section (121), an inclined section (122) and a high flat section (123), the bottom of the door frame (2) is movably provided with a support frame (3), the support frame (3) is provided with the door sill (4), the both ends of the support frame (3) are provided with a connecting column (8) abutting against the two circular truncated cones (7), the support frame (3) is provided with a plurality of elastic members (9), the plurality of elastic members (9) act on the support frame (3) to drive the connecting column (8) on the support frame (3) to abut against the circular truncated cone (7), and the rotating shaft (5) and the auxiliary shaft (6) are drivingly connected.

2. A sealing device for a civil defense door according to claim 1, characterized in that The elastic member (9) is a spring.

3. The sealing device of claim 1, wherein the sealing device is characterized by: The connecting column (8) is a cylinder.

4. The sealing device of claim 1, wherein the sealing device is characterized by: The rotating shaft (5) and the auxiliary shaft (6) are drivingly connected through a belt (10).

5. The sealing device of claim 1, wherein the sealing device is characterized by: The inclined section (122) has a vertical direction span distance greater than the height of the door sill (4).

6. The sealing device of claim 1, wherein the sealing device is a sealing device for a sash door. The door sill (4) is provided with a sealing gasket.

7. The sealing device of claim 1, wherein the sealing device is a sealing device for a sash door. The door leaf body (1) is provided with a handle (11), and the handle (11) is provided with an anti-skid layer.

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