Air tightness detection device for civil air defense door

Abstract

The utility model belongs to the field of civil air defense door detection, and discloses an air tightness detection device for a civil air defense door, which comprises a lifting assembly used for descending the civil air defense door into water, and a sealing assembly used for limiting and sealing the lower part of the civil air defense door is arranged on the lifting assembly. And the marking assembly is arranged on the outer side of the sealing assembly and is used for marking gas leakage points after double-shaft sliding position adjustment. According to the air tightness detection device for the civil air defense door, after the position is adjusted through double-shaft sliding, an air leakage point is marked through downward insertion, the marking rod is moved to the position above the air leakage point and is aligned with the air leakage point through downward insertion, and the position of the air leakage point is accurately recorded by adopting a mechanical marking method; through the arrangement of double coordinates, one corner of the civil air defense door is set as an original point, and an air leakage point position is displayed in a rectangular coordinate system mode, so that the air leakage point position is convenient to determine; through the arrangement of the multi-position marks, a plurality of marking rods are arranged, and a plurality of gas leakage point positions are marked at the same time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of civil air defense door detection, especially relates to a civil air defense door air tightness detection device. BACKGROUND

[0002] The civil air defense door is a special door type for civil air defense engineering, mainly used for the entrances of protective facilities such as air-raid shelters, underground shelters and underground passages, which usually have special protective design to provide protection for personnel and property, and provide refuge in emergency situations such as disasters, wars, fires, etc., the civil air defense door is used to provide protection for personnel and property, and must be sealed in emergency situations to prevent external substances such as smoke, toxic gases and fires from entering; in actual use, the air tightness of the civil air defense door has certain requirements, so the air tightness of the civil air defense door needs to be detected before it is put into the market, and the air tightness detection can ensure that the civil air defense door can effectively prevent the intrusion of external environment in emergency situations.

[0003] The patent with the authorized publication number CN215893913U discloses a civil air defense door air tightness detection device, which comprises a detection water tank, a drainage pipe is communicated on one side of the detection water tank, a first control valve is arranged on the drainage pipe, a support frame is arranged on the outer side of the detection water tank, a gas cylinder is fixed at one end of the support frame, a detection frame with a size smaller than the detection water tank is arranged at the front end of the gas cylinder, the detection frame is located above the detection water tank, a mounting groove is arranged in the detection frame, a sealing gasket is arranged in the mounting groove, a civil air defense door is mounted in the mounting groove, an air inlet pipe is communicated on one side of the detection frame, the setting position of the air inlet pipe is lower than the mounting groove, and a second control valve is arranged on the air inlet pipe.

[0004] The above-mentioned patent determines whether the civil air defense door leaks by bubbles, and the bubble position is the leakage point, but the determination and recording of the leakage point position rely on the human eye, and the leakage point position cannot be accurately recorded. Therefore, a new device needs to be designed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a civil air defense door air tightness detection device to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A civil air defense door air tightness detection device, comprising a lifting assembly for lowering the civil air defense door into water, a sealing assembly for limiting the placement and sealing the lower part of the civil air defense door is installed on the lifting assembly, and a marking assembly for double-shaft sliding adjustment of the position and marking the leakage point after downward insertion is arranged on the outer side of the sealing assembly.

[0008] The marking assembly comprises a fixing frame, two transverse sliding structures symmetrically arranged on the front and back of the fixing frame, six longitudinal sliding structures slidingly arranged between the two transverse sliding structures, second sliding blocks slidingly arranged on the longitudinal sliding structures, marking rods plug-in mounted in the second sliding blocks, and a handle rod arranged on the top of the marking rods.

[0009] Further, the lifting assembly comprises a water tank, a drain pipe arranged at the bottom of the water tank, an electric push rod mounted at the center of the lower surface of the water tank, and a lifting plate arranged at the top of the electric push rod and uniformly provided with four limiting rods.

[0010] Further, the sealing assembly comprises a detection box, a sealing gasket arranged on the upper surface of the detection box, four limiting plates arranged at the four corners of the sealing gasket, and an air charging pipe arranged at one side of the bottom of the detection box.

[0011] Further, the transverse sliding structure comprises a horizontal ruler, two fixing blocks symmetrically arranged at the two ends of the horizontal ruler, the longitudinal sliding structure comprises a vertical ruler, two first sliding blocks symmetrically arranged at the front and back of the vertical ruler, and scale lines arranged on the horizontal ruler and the vertical ruler.

[0012] Further, the bottom of the marking rod is in a conical shape, and the handle rod is made of PVC.

[0013] Further, the limiting plate is welded to the detection box, and the limiting plate is in an L shape.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. The double-shaft sliding adjustment position is used to set a leakage point, the marking rod is moved to the upper side of the leakage point and is inserted downward to be aligned, a mechanical marking method is adopted, and the position of the leakage point is accurately recorded.

[0016] 2. The double-coordinate setting is used to set one corner of the civil air defense door as an origin, a Cartesian coordinate system is used to display the leakage point position, and the determination of the leakage point position is facilitated.

[0017] 3. The multi-position marking setting is used to mark multiple leakage points simultaneously. DETAILED DESCRIPTION

[0018] Figure 1 is a structural schematic view of the air tightness detection device for the civil air defense door according to the present application;

[0019] Figure 2 is a lifting assembly schematic view of the air tightness detection device for the civil air defense door according to the present application;

[0020] Figure 3It is the sealing assembly schematic view of the air tightness detection device for civil air defense door of the utility model.

[0021] Figure 4 It is the marking assembly schematic view of the air tightness detection device for civil air defense door of the utility model.

[0022] In the drawing marks: 101, water tank; 102, drain pipe; 103, electric push rod; 104, lifting plate; 105, limiting rod; 201, detection box; 202, sealing gasket; 203, limiting plate; 204, inflation pipe; 301, fixed frame; 302, fixed block; 303, cross ruler; 304, first sliding block; 305, vertical ruler; 306, second sliding block; 307, marking rod; 308, handle; 309, scale line. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4 An air tightness detection device for civil air defense door, comprising a lifting assembly for lowering the civil air defense door into water, a sealing assembly for limiting placement and sealing the lower part of the civil air defense door is installed on the lifting assembly, and a marking assembly for double-shaft sliding adjustment of position and lower insertion of a leakage point is arranged outside the sealing assembly.

[0025] In the embodiment: the lifting assembly comprises a water tank 101, a drain pipe 102 is arranged at the bottom of the water tank 101, an electric push rod 103 is installed at the center position below the water tank 101, a lifting plate 104 is arranged at the top of the electric push rod 103, four limiting rods 105 are uniformly arranged below the lifting plate 104, the civil air defense door is placed on the sealing assembly, then pure water is injected into the water tank 101, and the electric push rod 103 is shortened to drive the sealing assembly to move downward along the limiting rod 105 through the lifting plate 104, so that the civil air defense door is immersed in water for detection, after use, the waste water is discharged through the drain pipe 102;

[0026] In the embodiment, the sealing assembly comprises a detection box 201, the upper surface of the detection box 201 is provided with a sealing gasket 202, four limiting plates 203 are arranged at four corners of the sealing gasket 202, an inflation pipe 204 is arranged at one side of the bottom of the detection box 201, the limiting plates 203 are welded to the detection box 201, the limiting plates 203 are in the shape of L, in use, the civil air defense door is placed between the four limiting plates 203 with one side downward, so that the civil air defense door is pressed against the sealing gasket 202 under the action of gravity, and a sealed space is formed between the civil air defense door and the detection box 201, after the civil air defense door is immersed in water, the detection box 201 is inflated through the inflation pipe 204, and the air tightness is detected;

[0027] In the embodiment, the marking assembly comprises a fixing frame 301, two transverse sliding structures are symmetrically arranged on the front and back of the fixing frame 301, six longitudinal sliding structures are slidingly installed between the two transverse sliding structures, a second sliding block 306 is slidingly installed on the longitudinal sliding structure, a marking rod 307 is plug-pulledly installed in the second sliding block 306, a handle 308 is arranged at the top of the marking rod 307, the transverse sliding structure comprises a horizontal ruler 303, two fixed blocks 302 are symmetrically arranged at the two ends of the horizontal ruler 303, the longitudinal sliding structure comprises a vertical ruler 305, two first sliding blocks 304 are symmetrically arranged at the front and back of the vertical ruler 305, scale lines 309 are arranged on the horizontal ruler 303 and the vertical ruler 305, the bottom of the marking rod 307 is in the shape of a cone, the handle 308 is made of PVC, when the civil air defense door leaks, air bubbles will be generated at the leakage point, at this time, the first sliding block 304 drives the horizontal ruler 303 to slide along the vertical ruler 305 supported by the fixing frame 301 and the fixed block 302, and at the same time, the second sliding block 306 drives the marking rod 307 to slide along the horizontal ruler 303, the marking rod 307 is moved above the air bubble, and the bottom of the marking rod 307 is inserted downward by the handle 308, so that the marking rod 307 more accurately points to the air bubble, and the leakage point is marked, the device is provided with a plurality of marking rods 307, and a plurality of leakage points can be marked at the same time, the position of the leakage point can be read out through the scale lines 309, one corner of the civil air defense door is set as an origin, the reading on the horizontal ruler 303 is a horizontal coordinate, and the reading on the vertical ruler 305 is a vertical coordinate, so that the leakage point of the civil air defense door can be determined.

[0028] Working principle: when in use, place the civil air defense door upside down between the four limiting plates 203, so that it is pressed tightly under the action of its own weight, and a sealed space is formed between the sealing pad 202 and the detection box 201, then inject pure water into the water tank 101, and make the electric push rod 103 shorter to drive the lifting plate 104 to move the detection box 201 downward along the limiting rod 105, so as to immerse the civil air defense door in water, then inflate the detection box 201 through the inflation pipe 204 to detect the air tightness of the civil air defense door; when the civil air defense door leaks, air bubbles will be generated at the leakage point, at this time, the first sliding block 304 drives the horizontal ruler 303 to slide along the vertical ruler 305 supported by the fixed frame 301 and the fixed block 302, and at the same time, the second sliding block 306 drives the marking rod 307 to slide along the horizontal ruler 303, so as to move the marking rod 307 above the air bubble, and then drive the bottom of the marking rod 307 to insert downward through the handle 308, so that it can more accurately point to the air bubble, and mark the leakage point, the device is provided with a plurality of marking rods 307, which can mark a plurality of leakage points at the same time, and the position of the leakage point can be read out through the scale line 309, taking one corner of the civil air defense door as the origin, the reading on the horizontal ruler 303 as the horizontal coordinate, and the reading on the vertical ruler 305 as the vertical coordinate, so as to facilitate determination of the leakage point position of the civil air defense door; after use, the waste water is discharged through the drain pipe 102.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. Airtightness detection device for civil air defense door, comprising a lifting assembly for lowering the civil air defense door into water, a sealing assembly for limiting the placement and sealing the lower surface of the civil air defense door is installed on the lifting assembly, characterized in that: The marking assembly is arranged outside the sealing assembly and is used for marking the air leakage point of the rear lower insertion mark of the biaxial sliding adjustment position; The marking assembly comprises a fixing frame (301), two lateral sliding structures are symmetrically arranged on the front and back of the fixing frame (301), six longitudinal sliding structures are slidingly installed between the two lateral sliding structures, a second sliding block (306) is slidingly installed on the longitudinal sliding structure, a marking rod (307) is plug-in installed in the second sliding block (306), and a handle rod (308) is arranged on the top of the marking rod (307).

2. The air tightness detection device for civil defense doors according to claim 1, characterized in that: The lifting assembly comprises a water tank (101), a drain pipe (102) is arranged at the bottom of the water tank (101), an electric push rod (103) is installed at the lower center of the water tank (101), a lifting plate (104) is arranged at the top of the electric push rod (103), and four limiting rods (105) are uniformly arranged below the lifting plate (104).

3. The air tightness detection device for civil defense doors according to claim 1, characterized in that: The sealing assembly comprises a detection box (201), a sealing gasket (202) is arranged on the upper surface of the detection box (201), four limiting plates (203) are arranged at the four corners of the sealing gasket (202), and an inflation pipe (204) is arranged on one side of the bottom of the detection box (201).

4. The airtightness detection device for civil defense doors according to claim 1, characterized in that: The lateral sliding structure comprises a horizontal ruler (303), two fixing blocks (302) are symmetrically arranged at the two ends of the horizontal ruler (303), the longitudinal sliding structure comprises a vertical ruler (305), two first sliding blocks (304) are symmetrically arranged at the front and back of the vertical ruler (305), and scale lines (309) are arranged on the horizontal ruler (303) and the vertical ruler (305).

5. The airtightness detection device for civil defense doors according to claim 1, characterized in that: The bottom of the marking rod (307) is in a conical shape, and the handle rod (308) is made of PVC material.

6. The air tightness detection device for civil defense doors according to claim 3, characterized in that: The limiting plate (203) is welded to the detection box (201), and the limiting plate (203) is in an L shape.

Images