Vacuum cover air leakage detection mechanism

Abstract

The utility model relates to a detection mechanism, in particular to a vacuum cover air leakage detection mechanism. The utility model provides a vacuum cover air leakage detection mechanism which comprises a glass cover, a pressure sensor, a display meter, a breather pipe, a runner pipe and an inflation pipe, the left side of the top of the glass cover is fixedly connected with the pressure sensor, the rear side of the pressure sensor is fixedly connected with the display meter, and the rear side of the display meter is fixedly connected with the glass cover. The pressure sensor is electrically connected with the display meter, the pressure sensor is used for detecting air pressure in the glass cover and transmitting data to the display meter, a pointer is arranged on the display meter to indicate an air pressure value, the right side of the top of the glass cover is fixedly connected with a breather pipe, the top of the breather pipe is fixedly connected with a runner pipe, and the front side of the runner pipe is fixedly connected with an inflation pipe. Through the arrangement of the placing disc, the soft rubber disc is protected from being affected by the ground and prevented from being dirty or damaged, and the placing disc is provided with a third handle and is convenient to carry and move.

Description

Technical Field

[0001] The utility model relates to a detection mechanism, in particular to a vacuum cover air leakage detection mechanism. Background Art

[0002] Currently, shipyards primarily use the kerosene penetrant method for leak detection of block welds, or conduct airtightness or water-filled tests after the hull is assembled to form a single compartment. However, the reliability of the kerosene penetrant method has been questioned by classification societies, primarily due to its potential inability to detect minor leaks, the potential for kerosene to pollute the environment, and the potential for damage to the block coating. If block weld inspection is postponed until after the entire hull is assembled, the overall assembly cycle will be extended, negatively impacting production schedules.

[0003] To address these issues, some manufacturers have successfully introduced electric vacuum pumps in conjunction with vacuum hoods to inspect weld quality. This testing method involves placing a transparent plexiglass vacuum hood over the surface of a segmented weld. The vacuum pump is then turned on, creating a negative pressure within the hood. The incomplete weld leaks due to the pressure difference between the two sides of the weld. Therefore, applying soapy water to the weld surface will inevitably produce bubbles, effectively inspecting the weld quality. However, as precision equipment, electric vacuum pumps become dirty from long-term use in the harsh environment of shipyards. Contaminated electric vacuum pumps lose their original functionality and are difficult to restore, making them unsuitable for widespread adoption.

[0004] Therefore, it is necessary to design a vacuum cover leakage detection mechanism. Utility Model Content

[0005] In order to overcome the shortcoming that electric vacuum pumps are not suitable for popularization and use in shipyards, the technical problem to be solved is: providing a vacuum cover leakage detection mechanism.

[0006] The technical solution is as follows: a vacuum cover air leakage detection mechanism, comprising a glass cover, a pressure sensor, a display meter, a ventilation pipe, a circulation pipe, an inflation pipe, a first ball valve, an exhaust device, a second ball valve, an exhaust pipe and a soft rubber disk. A pressure sensor is installed on the left side of the top of the glass cover, a display meter is installed on the rear side of the pressure sensor, the rear side of the display meter is fixedly connected to the glass cover, the pressure sensor is electrically connected to the display meter, the pressure sensor is used to detect the air pressure inside the glass cover and transmit data to the display meter, a pointer is provided on the display meter to indicate the air pressure value, a ventilation pipe is fixedly connected to the right side of the top of the glass cover, the top of the ventilation pipe is fixedly connected to the circulation pipe, the front side of the circulation pipe is fixedly connected to the inflation pipe, the middle of the inflation pipe is rotatably connected to the first ball valve, and the upper part of the first ball valve is rotatably connected to the top of the inflation pipe, the rear side of the circulation pipe is fixedly connected to the exhaust device, the middle of the exhaust device is rotatably connected to the second ball valve, and the upper part of the second ball valve is rotatably connected to the top of the exhaust device, the rear side of the exhaust device is fixedly connected to the exhaust pipe, the middle of the top of the glass cover is fixedly connected to the second handle, and the bottom of the glass cover is threadedly connected to the soft rubber disk.

[0007] In one embodiment, the lower portion of the soft rubber disc is made of soft rubber material.

[0008] In one embodiment, a glass cover is further included, and the top of the display watch is fixedly connected to the glass cover.

[0009] In one embodiment, a first handle is further included, and the first handle is fixedly connected to the front and rear sides of the top of the glass cover.

[0010] In one embodiment, a filter block is further included, and the filter block is fixedly connected to the interior of the front side of the inflation tube.

[0011] In one embodiment, a rubber sleeve is further included, and the air outlet pipe is covered with the rubber sleeve.

[0012] In one embodiment, it further includes a placement tray and a third handle. The placement tray is slidably placed on the bottom of the soft rubber tray, and the placement tray is sleeved on the soft rubber tray. The third handles are fixedly connected to the left and right sides of the placement tray.

[0013] Compared with the prior art, the utility model has the following advantages: 1. The utility model protects the soft rubber disc from the influence of the ground by providing a placement tray, preventing it from getting dirty or damaged. A third handle is provided on the placement tray, which is easy to carry and move.

[0014] 2. The utility model cooperates with a pressure sensor and a display meter. The pressure sensor detects the air pressure inside the glass cover and transmits the data to the display meter. The pointer on the display meter points to the air pressure value, thereby realizing the function of accurately monitoring the air pressure inside the glass cover.

[0015] 3. The glass cover, filter block and rubber sleeve of the utility model enhance the reliability and durability of the utility model. The glass cover not only prevents dust from falling on the display meter, but also protects the pointer inside the display meter from being damaged. The filter block filters the external air to reduce the possibility of dust accumulation inside the glass cover. The rubber sleeve is put on the outlet pipe to effectively protect the outlet from dust.

[0016] 4. The utility model provides two first handles on the glass cover, which makes it more stable, improves the stability during operation, and reduces the risk of the glass cover falling accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of the glass cover, pressure sensor, display meter and other components of the utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the glass cover, pressure sensor, display meter and other components of the utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the glass cover, pressure sensor, display meter and other components of the utility model.

[0020] Figure 4 It is a three-dimensional cross-sectional structural diagram of the components of the utility model, such as the inflation pipe, the first ball valve and the filter block.

[0021] Figure 5 It is a three-dimensional cross-sectional structural diagram of the components of the utility model, such as the inflation pipe, the first ball valve and the filter block.

[0022] Figure 6 It is a three-dimensional cross-sectional structural diagram of the soft rubber tray, the placement tray and the third handle of the utility model.

[0023] Markings in the figure are: 1-glass cover, 2-pressure sensor, 3-display meter, 4-glass cover, 5-first handle, 6-second handle, 7-ventilation pipe, 8-circulation pipe, 9-inflating pipe, 10-first ball valve, 11-filter block, 12-air extraction device, 13-second ball valve, 14-outlet pipe, 15-rubber sleeve, 16-soft rubber disk, 17-placement tray, 18-third handle. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0025] Embodiment: A vacuum cover leakage detection mechanism, such as Figures 1-6 As shown, it includes a glass cover 1, a pressure sensor 2, a display meter 3, a vent pipe 7, a circulation pipe 8, an inflation pipe 9, a first ball valve 10, an air extraction device 12, a second ball valve 13, an air outlet pipe 14 and a soft rubber disk 16. The pressure sensor 2 is fixedly connected to the left side of the top of the glass cover 1, and the display meter 3 is fixedly connected to the rear side of the pressure sensor 2. The rear side of the display meter 3 is fixedly connected to the glass cover 1. The pressure sensor 2 is electrically connected to the display meter 3. The pressure sensor 2 can detect the air pressure inside the glass cover 1 and transmit the data to the display meter 3. The display meter 3 is provided with a pointer to indicate the air pressure value. The vent pipe 7 is fixedly connected to the right side of the top of the glass cover 1, and the top of the vent pipe 7 is fixedly connected to the circulation pipe 8. The circulation pipe 8 is fixedly connected to the front side of the air filling pipe 9, the glass cover 1, the ventilation pipe 7 and the circulation pipe 8 are connected, the middle of the air filling pipe 9 is rotatably connected to the first ball valve 10, and the upper part of the first ball valve 10 is rotatably connected to the top of the air filling pipe 9, the rear side of the circulation pipe 8 is fixedly connected to the air extraction device 12, the middle of the air extraction device 12 is rotatably connected to the second ball valve 13, and the upper part of the second ball valve 13 is rotatably connected to the top of the air extraction device 12, the rear side of the air extraction device 12 is fixedly connected to the outlet pipe 14, the middle of the top of the glass cover 1 is fixedly connected to the second handle 6, so as to facilitate lifting and moving, the bottom of the glass cover 1 is threadedly connected to a soft rubber disc 16, the lower part of the soft rubber disc 16 is made of soft rubber material, which can be squeezed and adhered to the surface of the weld to be detected.

[0026] like Figure 1 and Figure 2 As shown, a glass cover 4 is also included, and the top of the display watch 3 is fixedly connected with the glass cover 4.

[0027] like Figure 1 and Figure 3 As shown, a first handle 5 is also included. The first handle 5 is fixedly connected to the front and back sides of the top of the glass cover 1.

[0028] like Figure 4 and Figure 5 As shown, a filter block 11 is also included, and the filter block 11 is fixedly connected to the interior of the front side of the inflation tube 9.

[0029] like Figure 4 and Figure 5 As shown, a rubber sleeve 15 is also included, and the rubber sleeve 15 is covered on the air outlet pipe 14.

[0030] like Figure 6 As shown, it also includes a placement tray 17 and a third handle 18. The placement tray 17 is slidably placed on the bottom of the soft rubber tray 16, and the placement tray 17 is sleeved on the soft rubber tray 16. The third handles 18 are fixedly connected to the left and right sides of the placement tray 17 to facilitate moving and positioning the placement tray 17.

[0031] First, apply soapy water on the surface of the weld to be inspected, then hold the second handle 6 and take out the glass cover 1. After taking it out, the soft rubber disc 16 is separated from the placement plate 17. The placement plate 17 protects the soft rubber disc 16 from being affected by the ground and becoming dirty. Then, pull the rubber sleeve 15 away from the air outlet pipe 14, and then align the bottom of the glass cover 1 with the weld to be inspected. Start the exhaust device 12 to extract the air inside the glass cover 1. The air inside is discharged through the glass cover 1, the circulation pipe 8, and the air outlet pipe 14 in sequence. Then, turn the first ball valve 10 90 degrees to prevent the front air from leaking into the glass cover 1. At the same time, because the lower part of the soft rubber disc 16 is made of soft rubber material, it is squeezed by the air pressure and the weld surface to be inspected during the exhaust process. Tightly fit to ensure sealing, detect the air pressure inside the glass cover 1 through the pressure sensor 2 and transmit the data to the display meter 3. A pointer is provided on the display meter 3 to indicate the air pressure value. The glass cover 4 on the display meter 3 prevents dust from falling on the display meter 3 and protects the pointer inside the display meter 3 from being damaged. After reaching a certain value, the exhaust device 12 is closed, and then the second ball valve 13 is rotated 90 degrees to prevent air from leaking into the glass cover 1 from the rear side. Then observe whether bubbles are generated on the surface of the weld coated with soapy water, or judge whether there are gaps in the hull weld according to whether the air pressure value on the display meter 3 changes. If bubbles are generated or the air pressure value continues to change, it indicates that there is a gap in the weld, and the specific location of the gap can be determined according to the location of the bubbles.

[0032] After the test, turn the first ball valve 10 90 degrees and open the inflation tube 9 to draw the front air into the glass cover 1. The filter block 11 filters the front air to prevent dust from falling inside the glass cover 1. As the air enters the glass cover 1, the soft rubber disc 16 slowly returns to its original shape. After the air pressure in the glass cover 1 returns to normal, hold the first handles 5 located on the front and back sides of the top of the glass cover 1 to lift the glass cover 1 stably, and then put the glass cover 1 back on the placement tray 17. The placement tray 17 is provided with a third handle 18 for easy carrying of the placement tray 17 and transportation of the device. Finally, put the rubber cover 15 back on the outlet pipe 14 to protect the outlet from dust.

[0033] After multiple uses, since the glass cover 1 and the soft rubber disk 16 are threadedly connected, the soft rubber disk 16 can be twisted clockwise until it is detached from the glass cover 1, and then the soft rubber disk 16 can be replaced by placing a new soft rubber disk 16 on the bottom of the glass cover 1 and twisting it counterclockwise to install it.

[0034] While the present invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A vacuum cover air leakage detection mechanism, characterized by: The invention comprises a glass cover (1), a pressure sensor (2), a display meter (3), a vent pipe (7), a flow pipe (8), an inflation pipe (9), a first ball valve (10), an air extraction device (12), a second ball valve (13), an air outlet pipe (14) and a soft rubber disk (16). The pressure sensor (2) is installed on the left side of the top of the glass cover (1), and the display meter (3) is installed on the rear side of the pressure sensor (2). The rear side of the display meter (3) is fixedly connected to the glass cover (1). The pressure sensor (2) and the display meter (3) are electrically connected. The pressure sensor (2) is used to detect the internal air pressure of the glass cover (1) and transmit the data to the display meter (3). The display meter (3) is provided with a pointer to indicate the air pressure value. The right side of the top of the glass cover (1) is fixedly connected to the pressure sensor (2). A vent pipe (7) is connected, the top of the vent pipe (7) is fixedly connected to a flow pipe (8), the front side of the flow pipe (8) is fixedly connected to an inflation pipe (9), the middle of the inflation pipe (9) is rotatably connected to a first ball valve (10), and the upper part of the first ball valve (10) is rotatably connected to the top of the inflation pipe (9), the rear side of the flow pipe (8) is fixedly connected to an air extraction device (12), the middle of the air extraction device (12) is rotatably connected to a second ball valve (13), and the upper part of the second ball valve (13) is rotatably connected to the top of the air extraction device (12), the rear side of the air extraction device (12) is fixedly connected to an air outlet pipe (14), the middle of the top of the glass cover (1) is fixedly connected to a second handle (6), and the bottom of the glass cover (1) is threadedly connected to a soft rubber disc (16).

2. A vacuum cover air leakage detection mechanism according to claim 1, characterized in that: The middle and lower part of the soft rubber disc (16) is made of soft rubber material.

3. A vacuum cover air leakage detection mechanism according to claim 2, characterized in that: It also includes a glass cover (4), and the top of the display meter (3) is fixedly connected with the glass cover (4).

4. A vacuum cover air leakage detection mechanism according to claim 3, characterized in that: It also includes a first handle (5), and the first handle (5) is fixedly connected to both the front and rear sides of the top of the glass cover (1).

5. A vacuum cover air leakage detection mechanism according to claim 4, characterized in that: It also includes a filter block (11), and the filter block (11) is fixedly connected to the interior of the front side of the inflation tube (9).

6. A vacuum cover air leakage detection mechanism according to claim 5, characterized in that: The utility model also comprises a rubber sleeve (15), and the air outlet pipe (14) is covered with the rubber sleeve (15).

7. A vacuum cover air leakage detection mechanism according to claim 6, characterized in that: The utility model also comprises a placement tray (17) and a third handle (18), wherein the placement tray (17) is slidably placed on the bottom of the soft rubber tray (16), and the placement tray (17) is sleeved on the soft rubber tray (16), and the third handle (18) is fixedly connected to both left and right sides of the placement tray (17).

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