CN219200749U - Fuse section of thick bamboo leak hunting frock - Google Patents

Abstract

The utility model provides a fuse tube leakage detection tool which comprises a sealing box body, a helium mass spectrometer leakage detector, a telescopic cylinder and a helium gas filling assembly, wherein the sealing box body is provided with a sealing groove; the sealing box body is provided with a plurality of detection insertion holes, a fuse wire cylinder is inserted in each detection insertion hole in a one-to-one correspondence manner, an opening of the fuse wire cylinder faces upwards, and a structural flange at the periphery of the fuse wire cylinder is supported on the sealing box body in a sealing manner; the helium mass spectrometer leak detector is used for extracting and detecting the gas in the sealed box body; the telescopic cylinders are arranged above the fuse cylinders in a one-to-one correspondence manner through the brackets, the output ends of the telescopic cylinders face downwards and are respectively connected with a pressing block, and an air flow channel is arranged in the pressing blocks; the helium filling assembly comprises a vacuumizing device and a helium tank, wherein the vacuumizing device is used for vacuumizing the interior of the fuse cylinder, and the helium tank is used for injecting helium into the fuse cylinder after vacuumizing. The utility model has simple operation, can improve the detection efficiency, simultaneously reduce misjudgment, improve the detection accuracy, reduce the helium consumption and save the detection cost.

Description

Fuse section of thick bamboo leak hunting frock

Technical Field

The utility model relates to the technical field of fuse tube detection equipment, in particular to a fuse tube leakage detection tool.

Background

The fuse tube is a common accessory of a switch cabinet, and leakage detection of the fuse tube is required in the manufacturing process.

Chinese patent No. CN215598639U discloses a fuse tube detecting tool, which comprises a sealed box, wherein the upper end of the sealed box is provided with four detecting grooves for detecting fuse tubes, and the detecting grooves are communicated with the inside of the sealed box; the fuse tube detection tool also comprises a helium filling assembly, a nylon sleeve and a helium mass spectrum leak detector; when the detection is carried out, four fuse barrels can be arranged in a detection groove, a leak detection mode of a leak detector is started, when the vacuum degree is pumped to a certain value, then the sealing box body is turned over to enable the opening parts of the fuse barrels to face downwards, nylon sleeves are sleeved on the opening parts of the four fuse barrels respectively, and helium is sprayed into the fuse barrels through air holes of the nylon sleeves; when helium in the fuse tube is pumped into the leak detector, the instrument gives an alarm to indicate bad products; otherwise, the product is a qualified product without leakage.

When the fuse tube detection tool is used for detection, the nylon sleeve is required to be manually sleeved at the mouth of the fuse tube to be detected and helium is sprayed into the fuse tube through the air hole of the nylon sleeve, the degree of automation is low, the operation is complex, the detection efficiency is low, when helium is sprayed into the fuse tube, the quantity of the helium which needs to be blown in is very large to increase the proportion of the helium in the product cavity, the leakage quantity is large, helium molecules possibly penetrate through the product wall to reach a vacuum area due to atmospheric pressure and are detected by the instrument, so that a product with small leakage rate is judged to be qualified, erroneous judgment is caused, the price of the helium is high, and the detection cost is increased due to large consumption.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a fuse tube leakage detection tool, which is simple to operate, can improve the detection efficiency, simultaneously reduces misjudgment, improves the detection accuracy, reduces the helium consumption and saves the detection cost.

The utility model provides a fuse tube leakage detection tool, which comprises:

the sealing box body is provided with a plurality of detection insertion holes, a fuse tube is inserted into each detection insertion hole in a one-to-one correspondence manner, an opening of the fuse tube faces upwards, and a structural flange at the periphery of the fuse tube is supported on the sealing box body in a sealing manner;

the helium mass spectrometer leak detector is used for extracting gas in the sealed box body for detection;

the telescopic cylinders are correspondingly arranged above the fuse barrels one by one through brackets, the output ends of the telescopic cylinders face downwards and are respectively connected with pressing blocks aligned with the openings at the upper ends of the corresponding fuse barrels, and air flow channels which can be in butt joint with the openings at the upper ends of the fuse barrels are arranged in the pressing blocks;

the helium filling assembly comprises vacuumizing equipment and a helium tank, wherein the vacuumizing equipment and the helium tank are respectively connected with the airflow channels in the pressing blocks, the vacuumizing equipment is used for vacuumizing the interior of the fuse cylinder, and the helium tank is used for injecting helium into the fuse cylinder after vacuumizing.

Further, each detection insertion hole is provided with a connecting flange, the connecting flanges are installed along the edges of the detection insertion holes, the fuse wire barrels pass through the middle of the connecting flanges, sealing rings are arranged on the upper side and the lower side of the connecting flanges, and the sealing rings on the upper side and the lower side of the connecting flanges are respectively sealed with the structural flanges on the peripheries of the fuse wire barrels and the detection insertion holes on the sealing box body.

Further, the connecting flange is made of nylon.

Further, the telescopic cylinders are air cylinders, each air cylinder is connected to a control air circuit respectively, and the control air circuits are used for controlling each air cylinder to stretch.

Further, the control gas circuit comprises a gas source, a gas source pressure regulating valve and a two-position five-way electromagnetic valve;

the air source is connected with the air source pressure regulating valve through an air pipe, the air source pressure regulating valve is connected with the air inlet of the two-position five-way electromagnetic valve through an air pipe, two air outlets of the two-position five-way electromagnetic valve are respectively connected with corresponding interfaces of all air cylinders through air pipes, and power lines of the two-position five-way electromagnetic valve are respectively connected to control buttons on the control box.

Further, the downside of briquetting is equipped with the cushion, and the briquetting passes through the cushion is contacted with the opening edge of fuse tube, and the air vent has been seted up to the position of corresponding air current passageway on the cushion.

Further, the helium filling assembly further comprises an air source split block, a first electromagnetic valve and a second electromagnetic valve;

the vacuumizing equipment is connected with the first electromagnetic valve through an air pipe, and the first electromagnetic valve is connected with the air source split block through an air pipe;

the helium tank is connected with the second electromagnetic valve through an air pipe, and the second electromagnetic valve is connected with the air source split block through an air pipe;

the air flow channels in the pressing blocks are respectively connected with the air source split-flow blocks through air pipes.

Further, the power line of the first electromagnetic valve is connected to the vacuumizing timing module on the control box, and the power line of the second electromagnetic valve is connected to the helium filling timing module on the control box.

Further, the device also comprises a pressure gauge, wherein the pressure gauge is connected with the air source split block.

Further, the fuse tube is filled with a filler.

The beneficial effects of the utility model are as follows:

(1) In the process of detecting leakage of the fuse tube, helium can be automatically filled into the fuse tube, the helium does not need to be filled into the fuse tube one by one in a manual mode, the automation degree is high, the operation is simple, and the detection efficiency is improved;

(2) When filling helium into the fuse tube, firstly vacuumizing the fuse tube through vacuumizing equipment, then injecting helium into the fuse tube through a helium tank, wherein the purity of the helium in the fuse tube is very high, even tiny leakage can be detected, so that misjudgment is reduced, the detection accuracy is improved, the helium injected into the fuse tube basically has no waste, the use amount of the helium can be reduced, and the detection cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

fig. 2 is a cross-sectional view of an embodiment of the utility model with the fuse cartridge inverted.

In the drawings, a 100-sealed box body; 110-detecting the insertion hole; a 111-connection flange; 200-helium mass spectrometer leak detector; 300-telescoping cylinder; 310-rack; 320-briquetting; 321-rubber cushion; 330-an air source pressure regulating valve; 340-two-bit five-way solenoid valve; 400-helium filling assembly; 410-helium tank; 420-an air source split block; 430-a first solenoid valve; 440-a second solenoid valve; 450-pressure gauge; 500-fuse cylinder; 510-a structural flange; 520-filler; 600-control box; 610-control buttons; 620-vacuumizing timing module; 630-helium-filled timing module.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

As shown in fig. 1 and 2, the fuse tube leak detection tool provided by the embodiment of the utility model comprises a sealedbox 100, a helium massspectrometer leak detector 200, atelescopic cylinder 300 and a heliumgas filling assembly 400.

Thesealing box 100 is provided with a plurality ofdetection insertion holes 110, afuse tube 500 is inserted in eachdetection insertion hole 110 in a one-to-one correspondence manner, an opening of thefuse tube 500 faces upwards, and astructural flange 510 at the periphery of thefuse tube 500 is supported on thesealing box 100 in a sealing manner.

In this embodiment, the number of thedetection insertion holes 110 is specifically four, and the number of thecorresponding fuse barrels 500 is also four, so that the fourfuse barrels 500 can be detected at a time.

Preferably, aconnection flange 111 is disposed at eachdetection insertion hole 110, theconnection flange 111 is preferably made of nylon, theconnection flange 111 is installed along the edge of thedetection insertion hole 110, thefuse tube 500 passes through the middle of theconnection flange 111, sealing rings are disposed on the upper side and the lower side of theconnection flange 111, and the sealing rings on the upper side and the lower side of theconnection flange 111 are respectively sealed with thestructure flange 510 on the periphery of thefuse tube 500 and thedetection insertion holes 110 on thesealing box 100, so that the sealing performance of the connection part of thefuse tube 500 and thesealing box 100 is improved.

Helium massspectrometer leak detector 200 is used to extract gas from sealedenclosure 100 for detection, helium massspectrometer leak detector 200 is a known product, and will not be described in detail herein.

The plurality oftelescopic cylinders 300 are correspondingly arranged above thefuse barrels 500 one by one through thebrackets 310, the output ends of thetelescopic cylinders 300 are downwards connected withpressing blocks 320 aligned with the openings of the upper ends of thecorresponding fuse barrels 500 respectively, and air flow channels which can be in butt joint with the openings of the upper ends of thefuse barrels 500 are arranged in thepressing blocks 320.

Thetelescopic cylinder 300 is mainly used for driving thepressing block 320 to move up and down so as to open or close the opening at the upper end of thefuse cylinder 500, and thetelescopic cylinder 300 can be an electric cylinder or an air cylinder.

In this embodiment, thetelescopic cylinders 300 are preferably cylinders, and each cylinder is connected to a control air path, and the control air path is used for controlling each cylinder to stretch.

Specifically, the control gas circuit comprises a gas source, a gas sourcepressure regulating valve 330 and a two-position five-wayelectromagnetic valve 340; the air source is connected with the air sourcepressure regulating valve 330 through an air pipe, the air sourcepressure regulating valve 330 is connected with the air inlet of the two-position five-wayelectromagnetic valve 340 through an air pipe, the two air outlets of the two-position five-wayelectromagnetic valve 340 are respectively connected with the corresponding interfaces of the air cylinders through air pipes, and the power wires of the two-position five-wayelectromagnetic valve 340 are respectively connected to thecontrol buttons 610 on thecontrol box 600.

In the detection process, thepressing block 320 needs to be pressed at the upper end of thefuse tube 500 and seals an opening at the upper end of thefuse tube 500, in order to improve the sealing performance between thepressing block 320 and the edge of the opening at the upper end of thefuse tube 500 when being pressed onto thefuse tube 500, arubber pad 321 is arranged at the lower side of thepressing block 320, therubber pad 321 can be asilica gel pad 321, thepressing block 320 is in contact with the edge of the opening of thefuse tube 500 through therubber pad 321, and vent holes are formed in positions, corresponding to the airflow channels, on therubber pad 321 so as to prevent therubber pad 321 from blocking the airflow channels.

The heliumgas filling assembly 400 includes a vacuum pumping apparatus for evacuating the interior of thefuse cylinder 500 and ahelium gas tank 410 connected to the gas flow passages in the respectivepressing blocks 320, respectively, and thehelium gas tank 410 is used for injecting helium gas into thefuse cylinder 500 after the evacuation.

Specifically,helium fill assembly 400 further includes a gassource diverter block 420, afirst solenoid valve 430, and asecond solenoid valve 440; the vacuumizing device is connected with a firstelectromagnetic valve 430 through an air pipe, and the firstelectromagnetic valve 430 is connected with an airsource split block 420 through an air pipe; thehelium tank 410 is connected with the secondelectromagnetic valve 440 through an air pipe, the secondelectromagnetic valve 440 is connected with the airsource split block 420 through an air pipe, and thehelium tank 410 is opened and the pressure is set before use; the air flow channels in eachpressing block 320 are respectively connected with the airsource splitting block 420 through air pipes. When the vacuum apparatus performs vacuum on the interior of thefuse tube 500, the firstelectromagnetic valve 430 needs to be opened and the secondelectromagnetic valve 440 needs to be closed, and when helium is injected into thefuse tube 500 after vacuum is performed by thehelium tank 410, the firstelectromagnetic valve 430 needs to be closed and the secondelectromagnetic valve 440 needs to be opened, and in this embodiment, the firstelectromagnetic valve 430 and the secondelectromagnetic valve 440 are normally closed electromagnetic valves.

Preferably, the power cord of thefirst solenoid valve 430 is connected to theevacuation timing module 620 on thecontrol box 600, the power cord of thesecond solenoid valve 440 is connected to the helium-filledtiming module 630 on thecontrol box 600, theevacuation timing module 620 is used for counting down when evacuating thefuse cylinder 500, and the helium-filledtiming module 630 is used for counting down when injecting helium into thefuse cylinder 500.

The embodiment further comprises apressure gauge 450, wherein thepressure gauge 450 is connected with the airsource diversion block 420, and when thefuse cylinder 500 is vacuumized, the pressure state can be observed through thepressure gauge 450.

In this embodiment, a filler 520 (as shown in fig. 2) may be further inserted into thefuse tube 500 to reduce the air volume of the cavity inside thefuse tube 500, shorten the time for vacuumizing, and reduce the amount of helium.

When the fuse tube leak detection tool is used for detecting leak of thefuse tube 500, firstly, thetelescopic cylinder 300 is controlled to drive thepressing block 320 to move upwards, then thefuse tube 500 to be detected is inverted and inserted into the sealedbox body 100 through thedetection insertion hole 110, then thefiller 520 is placed into thefuse tube 500, then the helium massspectrometer leak detector 200 is controlled to vacuumize the sealedbox body 100, after the vacuumizing is finished, thecontrol button 610 on thecontrol box 600 is pressed, then thetelescopic cylinder 300 is controlled to push thepressing block 320 to press and seal the opening at the upper end of thefuse tube 500, a time relay is further arranged in thecontrol box 600, generally, the time relay is set to be 5 seconds, when thecontrol button 610 is opened, the time relay works, after the countdown is finished, the time relay is closed, at this moment, the vacuumizingtiming module 620 is closed, the firstelectromagnetic valve 430 is opened, the vacuumizing device is connected to the cavity inside thefuse tube 500 through an air pipe, the air in the cavity is pumped out, after the vacuumizingtiming module 620 is finished, the firstelectromagnetic valve 430 is closed, then thehelium timing module 630 is started electrically, the secondelectromagnetic valve 440 is opened, the helium gas is pushed down, the opening of thepressing block 320 is stopped, after the helium mass spectrometer leak detector is stopped, the air is pumped up, the result of the helium mass spectrometer is stopped, after the helium mass spectrometer leak detector is stopped, the time is controlled to be the time relay is opened, and the helium mass spectrometer is stopped, and the result is completely, and the result is obtained, and the result is that after the helium mass spectrometer is stored.

In the process of the leakage detection of thefuse tube 500, the helium can be automatically filled into thefuse tube 500, the helium does not need to be filled into thefuse tube 500 one by one in a manual mode, the automation degree is high, the operation is simple, and the detection efficiency is improved.

When helium is filled into thefuse cylinder 500, thefuse cylinder 500 is vacuumized by the vacuumizing device, and then helium is injected into thefuse cylinder 500 by thehelium tank 410, so that the purity of the helium in thefuse cylinder 500 is very high, even if tiny leakage is detected, misjudgment is reduced, the detection accuracy is improved, the helium injected into thefuse cylinder 500 basically has no waste, the use amount of the helium can be reduced, and the detection cost is saved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (10)

1. The utility model provides a fuse section of thick bamboo leak hunting frock which characterized in that includes:

the sealing box body is provided with a plurality of detection insertion holes, a fuse tube is inserted into each detection insertion hole in a one-to-one correspondence manner, an opening of the fuse tube faces upwards, and a structural flange at the periphery of the fuse tube is supported on the sealing box body in a sealing manner;

the helium mass spectrometer leak detector is used for extracting gas in the sealed box body for detection;

the telescopic cylinders are correspondingly arranged above the fuse barrels one by one through brackets, the output ends of the telescopic cylinders face downwards and are respectively connected with pressing blocks aligned with the openings at the upper ends of the corresponding fuse barrels, and air flow channels which can be in butt joint with the openings at the upper ends of the fuse barrels are arranged in the pressing blocks;

the helium filling assembly comprises vacuumizing equipment and a helium tank, wherein the vacuumizing equipment and the helium tank are respectively connected with the airflow channels in the pressing blocks, the vacuumizing equipment is used for vacuumizing the interior of the fuse cylinder, and the helium tank is used for injecting helium into the fuse cylinder after vacuumizing.

2. The fuse tube leak detection tool of claim 1, wherein,

every detect the patchhole department all is provided with a flange, flange installs along the edge that detects the patchhole, the fuse tube passes from flange's centre, flange's upper and lower both sides all are provided with the sealing washer, flange upper and lower both sides's sealing washer respectively with the structure flange of fuse tube periphery with detect patchhole on the seal box.

3. The fuse tube leak detection tool of claim 2, wherein,

the connecting flange is made of nylon.

4. The fuse tube leak detection tool of claim 1, wherein,

the telescopic cylinders are cylinders, each cylinder is connected to a control air passage respectively, and the control air passages are used for controlling the telescopic cylinders.

5. The fuse tube leak detection tool of claim 4, wherein,

the control gas circuit comprises a gas source, a gas source pressure regulating valve and a two-position five-way electromagnetic valve;

the air source is connected with the air source pressure regulating valve through an air pipe, the air source pressure regulating valve is connected with the air inlet of the two-position five-way electromagnetic valve through an air pipe, two air outlets of the two-position five-way electromagnetic valve are respectively connected with corresponding interfaces of all air cylinders through air pipes, and power lines of the two-position five-way electromagnetic valve are respectively connected to control buttons on the control box.

6. The fuse tube leak detection tool of claim 1, wherein,

the lower side of the pressing block is provided with a rubber cushion, the pressing block is contacted with the edge of the opening of the fuse tube through the rubber cushion, and the position, corresponding to the airflow channel, on the rubber cushion is provided with a vent hole.

7. The fuse tube leak detection tool of claim 1, wherein,

the helium filling assembly further comprises an air source split block, a first electromagnetic valve and a second electromagnetic valve;

the vacuumizing equipment is connected with the first electromagnetic valve through an air pipe, and the first electromagnetic valve is connected with the air source split block through an air pipe;

the helium tank is connected with the second electromagnetic valve through an air pipe, and the second electromagnetic valve is connected with the air source split block through an air pipe;

the air flow channels in the pressing blocks are respectively connected with the air source split-flow blocks through air pipes.

8. The fuse tube leak detection tool of claim 7, wherein,

the power line of the first electromagnetic valve is connected to the vacuumizing timing module on the control box, and the power line of the second electromagnetic valve is connected to the helium filling timing module on the control box.

9. The fuse tube leak detection tool of claim 7, wherein,

the air source split flow system further comprises a pressure gauge, and the pressure gauge is connected with the air source split flow block.

10. The fuse tube leak detection tool of claim 1, wherein,

the fuse tube is provided with a filler.

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