Civil air defense door air tightness detection device

Abstract

The utility model relates to the technical field of air tightness detection devices, and discloses a civil air defense door air tightness detection device which comprises a base, a bottom bin fixedly connected to the base, four hydraulic rods fixedly connected to the inner surface of the base, two supporting plates slidably connected to the bottom of the bottom bin, a placement groove formed in the inner surface of the bottom bin, and a door frame slidably connected to the interior of the placement groove. A containing groove is formed in the side, close to the containing groove, of the bottom bin, the containing groove is evenly formed in a square shape, an air bag is installed in the containing groove, a starting mechanism used for starting the air bag is arranged on the inner surface of the containing groove, a sealing groove is formed in the top of the bottom bin, and a sealing mechanism used for sealing the bottom bin is arranged in the sealing groove. Through the arrangement of the hydraulic rod, the phenomenon that the door plate is inconvenient to take can be avoided, after detection is completed, the hydraulic rod can be started to drive the door frame to move upwards, and the door frame can be completely exposed along with continuous upward movement of the hydraulic rod, so that the phenomenon that the door plate is inconvenient to take is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of airtightness detection devices, in particular to an airtightness detection device for civil air defense doors. Background Art

[0002] An airtightness detection device for civil air defense doors is a device used to detect the airtightness ability of civil air defense doors. It can determine whether the sealing performance of the door meets the relevant standard requirements by conducting an airtightness test on the civil air defense door. Such a device usually includes components such as an airtightness test instrument, a pressure controller, and a data acquisition system. By conducting an airtightness test on the door, it can ensure that the civil air defense door can effectively prevent the intrusion of smoke and harmful gases in case of a fire or other disasters, thus protecting the safety of personnel.

[0003] When some existing airtightness detection devices for civil air defense doors are in use, the civil air defense door is usually directly placed inside the device. Since the device is set in a sunken shape, it takes a relatively long time to remove the civil air defense door after the detection is completed. Therefore, this problem needs to be solved. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an airtightness detection device for civil air defense doors.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An airtightness detection device for civil air defense doors includes a base. The base is fixedly connected with a bottom bin. The inner surface of the base is fixedly connected with four hydraulic rods. The four hydraulic rods are arranged in two groups of two. The tops of the two groups of hydraulic rods are fixedly connected with support plates. There is the same door frame on the tops of the two support plates. There is a door panel on the top of the door frame. The two support plates are both slidably connected to the bottom of the bottom bin. The inner surface of the bottom bin is provided with a placement groove. The door frame is slidably connected to the inside of the placement groove. There is a storage groove evenly opened in a square shape on one side of the bottom bin close to the placement groove. An airbag is installed inside the storage groove. The inner surface of the placement groove is provided with a starting mechanism for starting the airbag. The top of the bottom bin is provided with a sealing groove. The inside of the sealing groove is provided with a sealing mechanism for sealing the bottom bin. Through the setting of the hydraulic rods, the phenomenon that the door panel is inconvenient to take can be avoided.

[0007] As a further solution of the present utility model, the starting mechanism includes a piston chamber, which is opened on the inner surface of the placement groove. The piston chambers are evenly arranged in a square shape. A plurality of ventilation grooves are opened on the surface of the piston chamber close to the storage groove. The plurality of ventilation grooves are arranged to communicate with the piston chamber and the storage groove. A piston plate is slidably connected inside the piston chamber. A reset mechanism for resetting the piston plate is provided at the bottom of the piston plate. Through the setting of the piston plate, the airbag can be started.

[0008] As a further solution of the present utility model, the reset mechanism includes a rubber pad, which is fixedly connected to the top of the piston chamber. A plurality of connecting rods are fixedly connected to the inner top side of the rubber pad. The plurality of connecting rods are all fixedly connected to the top of the piston plate. A plurality of telescopic cylinders are fixedly connected to the top of the piston plate. The bottom ends of the plurality of telescopic cylinders are all fixedly connected to the inner surface of the piston chamber. Springs are sleeved on the surfaces of the plurality of telescopic cylinders. The top ends of the plurality of springs are all fixedly connected to the bottom of the piston plate. The bottom ends of the plurality of springs are all fixedly connected to the inner surface of the piston chamber. Through the setting of the springs, the piston plate can be reset.

[0009] As a further solution of the present utility model, the sealing mechanism includes a sealing plate, which is slidably connected inside the sealing groove. A chamber cover is fixedly connected to the top of the sealing plate. A glass plate is installed on the top of the chamber cover. A pressure pipe and a liquid adding pipe are respectively installed on the top of the glass plate. Through the setting of the chamber cover, the bottom chamber can be sealed.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Through the setting of the airbag, the phenomenon of pressure relief in the bottom chamber can be avoided. An airbag is installed inside the storage groove, and the airbag communicates with the storage groove and the piston chamber. Thus, when the piston plate moves downward inside the piston chamber, the gas inside the piston chamber can be filled into the airbag, so that the airbag can expand. The expanded airbag will be in close contact with the door frame to avoid the phenomenon of pressure relief.

[0012] 2. Through the setting of the hydraulic rod, the phenomenon that the door panel is inconvenient to take can be avoided. After the detection is completed, the hydraulic rod can be started to drive the door frame to move upward. As the hydraulic rod continues to move upward, the door frame can be completely exposed, thus avoiding the phenomenon that it is inconvenient to take. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an airtightness detection device for a civil air defense door proposed by the present utility model;

[0014] Figure 2 It is a schematic sectional view of an airtightness detection device for a civil air defense door proposed by the present utility model;

[0015] Figure 3 For Figure 2 the enlarged structural schematic diagram of part A in

[0016] Figure 4 is the partial structural schematic diagram of an airtightness detection device for a civil air defense door proposed by the present utility model;

[0017] Figure 5 is the schematic diagram of the sealing mechanism of an airtightness detection device for a civil air defense door proposed by the present utility model;

[0018] Figure 6 is the schematic diagram of the starting mechanism of an airtightness detection device for a civil air defense door proposed by the present utility model;

[0019] Figure 7 For Figure 6 the enlarged structural schematic diagram of part B in

[0020] In the figure: 1, base; 2, bottom bin; 3, hydraulic rod; 4, bin cover; 5, airbag; 201, sealing groove; 202, placement groove; 203, storage groove; 204, piston chamber; 205, ventilation groove; 301, support plate; 302, door frame; 303, door panel; 401, sealing plate; 402, glass plate; 403, pressure pipe; 404, liquid adding pipe; 501, rubber pad; 502, piston plate; 503, connecting rod; 504, telescopic cylinder; 505, spring. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Next, the present utility model will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0023] Refer to Figures 1-7, a gas tightness detection device for civil air defense doors, comprising a base 1, the base 1 is fixedly connected with a bottom bin 2, the inner surface of the base 1 is fixedly connected with four hydraulic rods 3, the four hydraulic rods 3 are arranged in two groups, the tops of the two groups of hydraulic rods 3 are fixedly connected with support plates 301, the tops of the two support plates 301 are provided with the same door frame 302, the top of the door frame 302 is provided with a door panel 303, the two support plates 301 are both slidably connected to the bottom of the bottom bin 2, the inner surface of the bottom bin 2 is provided with a placement groove 202, the door frame 302 is slidably connected to the inside of the placement groove 202, the inner part of the bottom bin 2 near one side of the placement groove 202 is provided with a storage groove 203, the storage grooves 203 are evenly arranged in a square shape, an air bag 5 is installed inside the storage groove 203, and a starting mechanism for starting the air bag 5 is provided on the inner surface of the placement groove 202. The top of the bottom bin 2 is provided with a sealing groove 201, and a sealing mechanism for sealing the bottom bin 2 is provided inside the sealing groove 201. Through the setting of the hydraulic rods 3, the phenomenon that the door panel 303 is inconvenient to take can be avoided.

[0024] Referring to Figure 2 and Figure 5 , in a preferred embodiment, the starting mechanism includes a piston chamber 204, the piston chamber 204 is opened on the inner surface of the placement groove 202, the piston chambers 204 are evenly arranged in a square shape, and a plurality of ventilation grooves 205 are opened on the surface of the piston chamber 204 near one side of the storage groove 203. The plurality of ventilation grooves 205 are arranged in mutual communication with the piston chamber 204 and the storage groove 203. A piston plate 502 is slidably connected inside the piston chamber 204, and a reset mechanism for resetting the piston plate 502 is provided at the bottom of the piston plate 502. Through the setting of the piston plate 502, the air bag 5 can be started.

[0025] Referring to Figure 3 and Figure 7 , in a preferred embodiment, the reset mechanism includes a rubber pad 501, the rubber pad 501 is fixedly connected to the top of the piston chamber 204, a plurality of connecting rods 503 are fixedly connected to the inner top side of the rubber pad 501, the plurality of connecting rods 503 are all fixedly connected to the top of the piston plate 502, a plurality of telescopic cylinders 504 are fixedly connected to the top of the piston plate 502, the bottom ends of the plurality of telescopic cylinders 504 are all fixedly connected to the inner surface of the piston chamber 204, a plurality of springs 505 are sleeved on the surfaces of the plurality of telescopic cylinders 504, the top ends of the plurality of springs 505 are all fixedly connected to the bottom of the piston plate 502, and the bottom ends of the plurality of springs 505 are all fixedly connected to the inner surface of the piston chamber 204. Through the setting of the springs 505, the piston plate 502 can be reset.

[0026] Referring to Figure 2 and Figure 5, in a preferred embodiment, the sealing mechanism includes a sealing plate 401 which is slidably connected inside the sealing groove 201. A bin cover 4 is fixedly connected to the top of the sealing plate 401. A glass plate 402 is installed on the top of the bin cover 4. A pressure pipe 403 and a liquid adding pipe 404 are respectively installed on the top of the glass plate 402. Through the setting of the bin cover 4, the bottom bin 2 can be sealed.

[0027] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: During use, the door panel 303 and the door frame 302 are placed on the tops of the two support plates 301. Hydraulic rods 3 are installed at the bottoms of the two support plates 301. Thus, after the door panel 303 and the door frame 302 are placed, the hydraulic rods 3 can be controlled to move downward. As the hydraulic rods 3 continue to move downward, the door frame 302 will enter the bottom bin 2 accordingly. A placement groove 202 is formed on the inner surface of the bottom bin 2, and the placement groove 202 is matched with the door frame 302. Thus, as the hydraulic rods 3 continue to move downward, the door frame 302 will enter the placement groove 202. A rubber pad 501 is installed on the inner surface of the placement groove 202. Due to the characteristics of the rubber pad 501, as the door frame 302 moves downward, the rubber pad 501 will also move downward. A piston plate 502 is installed at the bottom of the rubber pad 501, and the piston plate 502 slides inside the piston chamber 204. A storage groove 203 is formed on one side of the piston chamber 204, and an airbag 5 is installed inside the storage groove 203. The airbag 5 is in communication with the storage groove 203 and the piston chamber 204. Thus, when the piston plate 502 moves downward inside the piston chamber 204, the gas inside the piston chamber 204 can be filled into the airbag 5 to enable the airbag 5 to expand. The expanded airbag 5 will be in close contact with the door frame 302 to prevent the phenomenon of pressure relief. After the door frame 302 is placed, the bin cover 4 and the bottom bin 2 are combined to detect the airtightness of the door panel 303 and the door frame 302. After the detection is completed, the hydraulic rods 3 can be started to drive the door frame 302 to move upward. As the hydraulic rods 3 continue to move upward, the door frame 302 can be completely exposed, thus avoiding the phenomenon that it is not convenient to take.

[0028] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used here will be made accordingly.

[0029] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] It should be noted that the terms "first", "second", etc. in the description, claims, and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented, for example, in an order different from those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0031] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for detecting air tightness of a civil air defense door, comprising a base (1), characterized in that: The base (1) is fixedly connected to the bottom bin (2), and four hydraulic rods (3) are fixedly connected to the inner surface of the base (1). The four hydraulic rods (3) are arranged in pairs, and the tops of the two groups of hydraulic rods (3) are fixedly connected to support plates (301). The tops of the two support plates (301) are provided with the same door frame (302), and the tops of the door frames (302) are provided with door panels (303). The two support plates (301) are slidably connected to the bottom of the bottom bin (2), and the inner surface of the bottom bin (2) is provided with a placement groove (202). ), the door frame (302) is slidably connected to the inside of the placement groove (202), a storage groove (203) is provided inside the bottom bin (2) close to the placement groove (202), the storage groove (203) is evenly opened in a square shape, an airbag (5) is installed inside the storage groove (203), a starting mechanism for starting the airbag (5) is provided on the inner surface of the placement groove (202), a sealing groove (201) is provided on the top of the bottom bin (2), and a sealing mechanism for sealing the bottom bin (2) is provided inside the sealing groove (201).

2. The air tightness detection device for civil air defense doors according to claim 1 is characterized in that: The starting mechanism comprises a piston chamber (204), the piston chamber (204) is arranged on the inner surface of the placement groove (202), the piston chamber (204) is evenly arranged in a square shape, and a plurality of ventilation grooves (205) are arranged on the surface of the piston chamber (204) on one side close to the storage groove (203).

3. The air tightness detection device for civil air defense doors according to claim 2 is characterized in that: The plurality of ventilation grooves (205) are interpenetratingly arranged with the piston chamber (204) and the storage groove (203); a piston plate (502) is slidably connected inside the piston chamber (204); and a reset mechanism for resetting the piston plate (502) is provided at the bottom of the piston plate (502).

4. The air tightness detection device for civil air defense doors according to claim 3 is characterized in that: The reset mechanism comprises a rubber pad (501), wherein the rubber pad (501) is fixedly connected to the top of the piston chamber (204), a plurality of connecting rods (503) are fixedly connected to the inner top side of the rubber pad (501), the plurality of connecting rods (503) are all fixedly connected to the top of the piston plate (502), the top of the piston plate (502) is fixedly connected to a plurality of telescopic cylinders (504), and the bottom ends of the plurality of telescopic cylinders (504) are all fixedly connected to the inner surface of the piston chamber (204).

5. The air tightness detection device for civil air defense doors according to claim 4 is characterized in that: The surfaces of the multiple telescopic cylinders (504) are sleeved with springs (505), the top ends of the multiple springs (505) are fixedly connected to the bottom of the piston plate (502), and the bottom ends of the multiple springs (505) are fixedly connected to the inner surface of the piston chamber (204).

6. The air tightness detection device for civil air defense doors according to claim 5, characterized in that: The sealing mechanism comprises a sealing plate (401), the sealing plate (401) is slidably connected to the inside of the sealing groove (201), the top of the sealing plate (401) is fixedly connected to a bin cover (4), the top of the bin cover (4) is mounted with a glass plate (402), and the top of the glass plate (402) is respectively mounted with a pressurizing pipe (403) and a liquid adding pipe (404).

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