CN220418741U

CN220418741U - Product tightness detection device

Info

Publication number: CN220418741U
Application number: CN202321829011.1U
Authority: CN
Inventors: 张先水; 麦海; 颜立伟; 刘维国
Original assignee: Macaudi Xiamen Intelligent Electric Co ltd
Current assignee: Macaudi Xiamen Intelligent Electric Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-30
Anticipated expiration: 2033-07-12

Abstract

The utility model relates to a product tightness detection device, including frame, detection bucket, vacuum pump, aerator and gas leak detector. The top surface of the frame is provided with a supporting surface and a mounting surface surrounding the supporting surface, the supporting surface is provided with an air charging hole and a first sealing ring surrounding the air charging hole, the supporting surface is used for bearing the bottom surface of a product and is sealed through the first sealing ring, and the mounting surface is provided with a second sealing ring. The inside cavity of detection bucket, detection bucket are used for the cover to establish outside the product, and have the detection space between detection bucket and the product, and the bottom surface of detection bucket is placed on the installation face to it is sealed through the second sealing washer, still be equipped with the intercommunicating pore that communicates detection space on the detection bucket. The compressing mechanism compresses the detection barrel on the mounting surface. The vacuum pump is communicated with the communication hole and is used for vacuumizing the detection space. The inflator is communicated with the inflation hole and is used for inflating detection gas into the product. The gas leak detector is communicated with the communication hole and is used for detecting whether the detection space has detection gas leakage after vacuumizing.

Description

Product tightness detection device

Technical Field

The disclosure relates to the field of detection equipment, and in particular relates to a product tightness detection device.

Background

In a power system, a fuse tube is used as an important part in a switch cabinet, and plays an important role in breaking short-circuit current and protecting power grid equipment. The fuse tube is a part which is formed by embedding a vacuum arc extinguishing chamber and related conductive parts of the circuit breaker into a solid insulating material to form a cladding part, so that the whole circuit breaker pole is integrated.

The fuse tube is internally provided with a hollow cavity, and the end face of the fixed pole is provided with an opening. The tightness of the assembled fixed polar post needs to be detected in the production process of the fuse tube. The existing method is to adopt oil pressure to detect, seal and fix the end face of the fixed polar column on equipment provided with an oil outlet, the oil outlet fills oil into the hollow cavity, and whether oil leakage exists or not is observed to judge the tightness of the fixed polar column. However, the oil leakage is detected and needs to be cleaned, and the detection is very hard.

Disclosure of Invention

An object of the present disclosure is to provide a product tightness detecting device, so as to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present disclosure adopts the following technical solutions.

The present disclosure provides a product tightness detection device, inside cavity of product, just the bottom surface of product has the intercommunication the inside opening of product includes: the rack is provided with a supporting surface and a mounting surface surrounding the supporting surface, wherein the supporting surface is provided with an air charging hole and a first sealing ring surrounding the air charging hole, the supporting surface is used for bearing the bottom surface of a product and is sealed by the first sealing ring, and the mounting surface is provided with a second sealing ring; the detection barrel is hollow, the bottom surface of the detection barrel is provided with an opening communicated with the inside of the detection barrel, the detection barrel is used for being sleeved outside a product, a detection space is formed between the detection barrel and the product, the bottom surface of the detection barrel is placed on the mounting surface and is sealed by the second sealing ring, and the detection barrel is also provided with a communication hole communicated with the detection space; the compressing mechanism compresses the detection barrel on the mounting surface; the vacuum pump is communicated with the communication hole and used for vacuumizing the detection space; the inflator is communicated with the air charging hole and is used for charging detection gas into the product; and the gas leak detector is communicated with the communication hole and is used for detecting whether the detection space has detection gas leakage after vacuumizing.

According to one embodiment of the present disclosure, the product tightness detection device further comprises a mounting ring; the mounting ring is vertically arranged on the top surface of the frame; the mounting ring encloses at the frame top surface and is located the supporting surface of mounting ring inboard, the top surface of mounting ring is as the installation face, just the installation face is higher than the supporting surface.

According to one embodiment of the present disclosure, the product tightness detection device further comprises a support ring; the support ring is vertically arranged on the top surface of the frame and is positioned on the inner side of the mounting ring, and the top surface of the support ring is used as the support surface.

According to one embodiment of the disclosure, the product tightness detection device further comprises an inflation tube; the inflation tube is vertically arranged on the supporting surface; the inflation tube is used for penetrating into the product, and the inflation hole is formed in the inflation tube.

According to one embodiment of the present disclosure, the product tightness detection device further comprises a sleeve; the inside cavity of cover bucket, just the bottom surface of cover bucket has the intercommunication the inside opening of cover bucket, the cover bucket is used for wearing to locate in the product, and the cover is established outside the gas tube, the bottom surface of cover bucket bears on the holding surface, just still be equipped with the intercommunication on the cover bucket the inside venthole with inside the product of cover bucket.

According to one embodiment of the present disclosure, the product sealability detection device further comprises a guide plate; the guide plates are vertically arranged on the top surface of the frame, and a plurality of guide plates are arranged around the mounting surface and used for guiding the detection barrel.

According to one embodiment of the present disclosure, the inspection bucket includes a bucket body, a cover portion, and a ring portion; the barrel body is internally communicated up and down; the cover part is covered on the top of the barrel body, and the communication hole is arranged on the cover part; the ring part is connected to the bottom of the barrel body and extends to the outer side of the barrel body, and the bottom surface of the ring part is borne on the mounting surface.

According to one embodiment of the disclosure, the tub body and the ring are of a unitary structure; the ring part is provided with a plurality of screw holes surrounding the barrel body; the cover part extends to the outer side of the barrel body, and is provided with a plurality of through holes which encircle the barrel body, and the through holes and the screw holes are in one-to-one correspondence; the detection barrel further comprises a connecting rod and a nut; the barrel body is surrounded by a plurality of connecting rods, one ends of the connecting rods are in threaded connection with the screw holes, and the other ends of the connecting rods penetrate through the through holes; the nuts are positioned on one side of the cover part, which is opposite to the ring part, and the nuts are respectively screwed on the connecting rods so as to lock the cover part on the barrel body.

According to one embodiment of the present disclosure, the pressing mechanism includes a pressing portion and a rotary lifting cylinder; the rotary lifting cylinder drives the pressing part to descend and rotate until the pressing part is pressed above the ring part, or drives the pressing part to ascend and rotate until the pressing part stands on one side of the ring part.

According to one embodiment of the present disclosure, a plurality of the hold-down mechanisms are disposed around the detection tub.

According to the technical scheme, the embodiment of the disclosure has at least the following advantages and positive effects:

in the product tightness detection device provided by the disclosure, an end face, provided with an opening, of a product is taken as a bottom face to be placed on a supporting face, and the end face is sealed through a first sealing ring. And the detection barrel is sleeved outside the product, and the bottom surface of the detection barrel is placed on the mounting surface and is sealed through a second sealing ring. The compressing mechanism compresses the detection barrel on the mounting surface, so that air leakage of a detection space between the detection barrel and a product is avoided. The vacuum pump vacuumizes the detection space through the communication hole, the inflator fills detection gas into the product through the inflation hole, and the gas leak detector detects whether the detection space has detection gas leakage after vacuumization, so that the tightness of the product can be judged. Or setting a threshold value of gas leakage quantity, if the gas leak detector detects that the detected gas leakage quantity is smaller than or equal to the threshold value after the detection space is vacuumized, the sealing performance of the fuse tube is qualified, if the gas leak detector detects that the detected gas leakage quantity is larger than the threshold value after the detection space is vacuumized, the sealing performance of the fuse tube is unqualified, and then the sealing performance of the fuse tube can be judged according to whether the detected leakage quantity of the gas leak detector is obviously changed. The detection process does not need to be observed manually, and the use is more convenient. And because gas detection is adopted, the cleaning procedure is omitted.

Drawings

Various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of the preferred embodiments of the disclosure, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout.

Wherein:

fig. 1 is a schematic perspective view of a product sealability detection device according to an exemplary embodiment.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 1.

Fig. 4 is a schematic perspective view of fig. 1 with the test barrel and fuse barrel removed.

Fig. 5 is a schematic perspective view of fig. 4 with the first seal ring and the second seal ring removed.

Fig. 6 is a schematic perspective view of the inspection bucket of fig. 1.

Fig. 7 is a schematic perspective view of fig. 6 at another angle.

The reference numerals are explained as follows: 1. a frame; 11. a support ring; 111. a support surface; 112. a first seal ring; 12. a mounting ring; 121. a mounting surface; 122. a second seal ring; 13. an inflation tube; 131. an air filling hole; 2. detecting a barrel; 20. a detection space; 21. a tub body; 22. a cover portion; 221. a communication hole; 23. a ring portion; 24. a connecting rod; 25. a nut; 3. a compressing mechanism; 31. a pressing part; 32. a rotary lifting cylinder; 4. a sleeve barrel; 41. an air outlet hole; 5. a guide plate; 6. a reinforcing plate; 7. a control key; 8. an indicator light; 9. barometer.

Detailed Description

Exemplary embodiments that embody features and advantages of the present disclosure are described in detail in the following description. It will be understood that the present disclosure is capable of various modifications in the various embodiments, all without departing from the scope of the present disclosure, and that the description and drawings are intended to be illustrative in nature and not to be limiting of the present disclosure.

In the following description of various exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the present disclosure may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various exemplary features and elements of the disclosure, these terms are used herein for convenience only, e.g., in accordance with the directions of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of structures to fall within the scope of this disclosure.

Referring to fig. 1, a schematic perspective view of a product sealability detection device according to the present disclosure is representatively illustrated. In this exemplary embodiment, the product sealability detection device proposed in the present disclosure is described as being applied to a fuse tube as an example. Those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to adapt the relevant designs of the present disclosure to other types of products, which remain within the principles of the product tightness detection device set forth in the present disclosure.

As shown in fig. 1 to 5, in an embodiment of the present disclosure, the product sealability detection device proposed by the present disclosure includes a frame 1, a detection tub 2, a pressing mechanism 3, a vacuum pump, an inflator, and a gas leak detector.

The top surface of the frame 1 is provided with a supporting surface 111 and a mounting surface 121 surrounding the supporting surface 111, the supporting surface 111 is provided with an air charging hole 131 and a first sealing ring 112 surrounding the air charging hole 131, the supporting surface 111 is used for bearing the bottom surface of a product and is sealed by the first sealing ring 112, and the mounting surface 121 is provided with a second sealing ring 122.

The inside of detecting the bucket 2 is hollow, and the bottom surface of detecting the bucket 2 has the inside opening of intercommunication detecting the bucket 2, and detecting the bucket 2 and be used for the cover to establish outside the product, and have detection space 20 between detecting bucket 2 and the product, the bottom surface of detecting the bucket 2 is placed on installation face 121 to sealed through second sealing washer 122, still be equipped with the intercommunicating pore 221 that feeds through detection space 20 on the detecting the bucket 2.

The pressing mechanism 3 presses the detection tub 2 against the mounting surface 121. The vacuum pump communicates with the communication hole 221 for evacuating the detection space 20. The inflator communicates with the inflation hole 131 for inflating the inside of the product with the detection gas. The gas leak detector communicates with the communication hole 221 for detecting whether or not the detection space 20 has detected gas leakage after the evacuation.

When the fuse tube tightness detection device provided by the disclosure detects the fuse tube, the end face, provided with the opening, of the fuse tube is taken as the bottom face to be placed on the supporting face 111 and sealed through the first sealing ring 112. And the detection barrel 2 is sleeved outside the fuse tube, and the bottom surface of the detection barrel 2 is placed on the mounting surface 121 and is sealed by the second sealing ring 122. The pressing mechanism 3 presses the detecting barrel 2 on the mounting surface 121, so that the detecting space 20 between the detecting barrel 2 and the fuse tube is prevented from leaking. The vacuum pump vacuums the detection space 20 through the communication hole 221, the inflator inflates the detection gas into the fuse tube through the inflation hole 131, and the gas leak detector detects whether the detection gas leaks from the detection space 20 after the vacuum pumping, so that the tightness of the fuse tube can be judged. Specifically, if the gas leak detector detects no detection gas after the detection space 20 is evacuated, the fuse tube sealing property is qualified, and if the gas leak detector detects the detection gas after the detection space 20 is evacuated, the fuse tube sealing property is not qualified. Or, a threshold value of gas leakage amount is set, if the gas leak detector detects that the detected gas leakage amount is smaller than or equal to the threshold value after the detection space 20 is vacuumized, the tightness of the fuse tube is qualified, if the gas leak detector detects that the detected gas leakage amount is larger than the threshold value after the detection space 20 is vacuumized, the tightness of the fuse tube is unqualified, and then the tightness of the fuse tube can be judged according to whether the detected leakage amount of the gas leak detector is obviously changed. The detection process does not need to be observed manually, and the use is more convenient. And because gas detection is adopted, the cleaning procedure is omitted. In this embodiment, the detection gas is helium. Two second seal rings 122 are coaxially arranged, and one second seal ring 122 is located inside the other second seal ring 122.

As shown in fig. 4 and 5, in one embodiment of the present disclosure, the product tightness detection device further comprises a mounting ring 12. The mounting ring 12 stands on the top surface of the frame 1. The mounting ring 12 encloses a supporting surface 111 positioned on the inner side of the mounting ring 12 on the top surface of the frame 1, the top surface of the mounting ring 12 is used as a mounting surface 121, and the mounting surface 121 is higher than the supporting surface 111. Through the above-mentioned structural design, the installation position of detecting bucket 2 is confirmed to collar 12 to the top surface area of collar 12 is smaller in the area of frame 1 top surface, and easy processing is more level and smooth, is favorable to improving the leakproofness between installation face 121 and the detecting bucket 2. At the same time, the inner peripheral wall of the mounting ring 12 can locate the fuse tube.

The product-based tightness detection device also comprises a structural design of the mounting ring 12. In an embodiment of the present disclosure, the product tightness detection device further comprises a support ring 11. The support ring 11 stands on the top surface of the frame 1 and is located inside the mounting ring 12, the top surface of the support ring 11 serving as a support surface 111. Through above-mentioned structural design, the holding ring 11 determines the position of placing of detecting bucket 2 to the top surface area of holding ring 11 is smaller in the area of being located the frame 1 top surface of installing ring 12 inboard, and easy processing is more even, is favorable to improving the leakproofness between holding surface 111 and the fuse section of thick bamboo.

The product-based tightness detection device also comprises a structural design of the mounting ring 12. In one embodiment of the present disclosure, the product tightness detection device further comprises an inflation tube 13. The inflation tube 13 stands on the support surface 111. The air charging tube 13 is used for penetrating into the product, and an air charging hole 131 is arranged in the air charging tube 13. Through the above structural design, the inflator is conveniently connected by the inflation tube 13. In this embodiment, the inflation tube 13 is located inside the support ring 11.

As shown in fig. 3, the product tightness detection device further comprises a structural design of the air charging tube 13. In an embodiment of the present disclosure, the product tightness detection device further comprises a sleeve 4. The sleeve 4 is hollow, the bottom surface of the sleeve 4 is provided with an opening communicated with the inside of the sleeve 4, the sleeve 4 is used for penetrating through a product and sleeved outside the inflation tube 13, the bottom surface of the sleeve 4 is borne on the supporting surface 111, and the sleeve 4 is also provided with an air outlet hole 41 communicated with the inside of the sleeve 4 and the inside of the product. Through the structural design, the sleeve barrel 4 occupies a certain space inside the fuse tube, and when the next product is detected, detection gas is reserved in the sleeve barrel 4, so that the inflation amount in the next test can be reduced, and the consumption of the detection gas is saved.

As shown in fig. 1, in an embodiment of the present disclosure, the product sealability detection device further includes a guide plate 5. The guide plates 5 are erected on the top surface of the frame 1, and a plurality of guide plates 5 are provided around the mounting surface 121 for guiding the inspection bucket 2. With the above structural design, it is more convenient to place the inspection bucket 2 on the mounting surface 121.

The product tightness detection device also comprises a structural design of the guide plate 5. In an embodiment of the present disclosure, the product tightness detection device further comprises a reinforcing plate 6. The reinforcing plate 6 connects the guide plate 5 and the frame 1, and improves the structural strength of the guide plate 5.

As shown in fig. 6 and 7, in an embodiment of the present disclosure, the inspection bucket 2 includes a bucket body 21, a lid portion 22, and a ring portion 23. The tub body 21 is vertically penetrated inside. The cover 22 covers the top of the tub body 21, and a communication hole 221 is provided in the cover 22. The ring portion 23 is connected to the bottom of the tub body 21 and extends to the outside of the tub body 21, and the bottom surface of the ring portion 23 is supported on the mounting surface 121. Through the above structural design, the area of detecting the bottom surface of the barrel 2 is increased by extending the ring portion 23 to the outer side of the barrel body 21, which is more beneficial to forming a seal by the first seal ring 112 when the detecting barrel 2 is placed.

Based on the structural design of the inspection bucket 2 including the bucket body 21, the cover 22 and the ring 23. In one embodiment of the present disclosure, the tub body 21 and the ring 23 are of a unitary structure. The ring portion 23 is provided with a plurality of screw holes surrounding the tub body 21. The cover 22 extends to the outside of the tub body 21, and a plurality of through holes surrounding the tub body 21 are formed in the cover 22, and the through holes and the screw holes are in one-to-one correspondence. The inspection bucket 2 further includes a connecting rod 24 and a nut 25. The connecting rods 24 encircle the barrel body 21, one ends of the connecting rods 24 are in threaded connection with the screw holes, and the other ends of the connecting rods penetrate through the through holes. The nuts 25 are located on the side of the cover 22 facing away from the ring 23, and the nuts 25 are respectively screwed on the connecting rods 24 to lock the cover 22 on the tub body 21. By the above structural design, the cover 22 is more tightly mounted on the tub body 21, improving the sealing property of the detection space 20.

As shown in fig. 1, the inspection bucket 2 includes a structural design of a bucket body 21, a cover 22, and a ring 23. In an embodiment of the present disclosure, the pressing mechanism 3 includes a pressing portion 31 and a rotary lifting cylinder 32. The rotary lifting cylinder 32 drives the pressing portion 31 to descend and rotate to press against the ring portion 23, or drives the pressing portion 31 to ascend and rotate to stand on the side of the ring portion 23. Through the above structural design, when the rotary lifting cylinder 32 drives the pressing portion 31 to descend and rotate, the ring portion 23 can be compressed more tightly, and the tightness of the second sealing ring 122 to the detection space 20 is improved. When the rotary lifting cylinder 32 drives the pressing portion 31 to rise and rotate, the pressing portion 31 stands on the side of the ring portion 23 to give way for the inspection bucket 2 to be placed on the mounting surface 121.

In an embodiment of the present disclosure, a plurality of hold-down mechanisms 3 are disposed around the inspection bucket 2. With the above structural design, the detection tub 2 can be more tightly pressed against the mounting surface 121, and the sealing performance can be improved.

As shown in fig. 1, in an embodiment of the present disclosure, the product tightness detection device further includes a plurality of control keys 7 for controlling the pressing mechanism 3, the vacuum pump, the inflator, and the gas leak detector. In addition, the air pressure meter can further comprise an indicator lamp 8 and an air pressure meter 9, wherein the indicator lamp 8 displays the working state of the product tightness detection device, and the air pressure meter 9 displays the air pressure value of the detection space 20, so that the vacuum-pumping state of the detection space 20 and whether the detected gas leaks or not can be observed intuitively. And the sensitivity of the barometer 9 is used for preventing the micro leakage products with too small detected gas pressure and too low concentration from being detected.

It should be noted herein that the product tightness detection devices shown in the drawings and described in this specification are only a few examples of the wide variety of product tightness detection devices that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are in no way limited to any details or any components of the product tightness detection device shown in the drawings or described in the present specification.

In summary, in the product tightness detecting device according to the present disclosure, the end surface of the product provided with the opening is placed on the supporting surface 111 as the bottom surface, and is sealed by the first sealing ring 112. The detection barrel 2 is sleeved outside the product, and the bottom surface of the detection barrel 2 is placed on the mounting surface 121 and is sealed by the second sealing ring 122. The pressing mechanism 3 presses the detection barrel 2 on the mounting surface 121, so that air leakage of the detection space 20 between the detection barrel 2 and the product is avoided. The vacuum pump vacuumizes the detection space 20 through the pumping hole, the inflator charges detection gas into the product through the gas charging hole 131, and the gas leak detector detects whether the detection space 20 has detection gas leakage after vacuumization, so that the tightness of the product can be judged. The detection process does not need to be observed manually, and the use is more convenient. And because gas detection is adopted, the cleaning procedure is omitted. Or, a threshold value of gas leakage amount is set, if the gas leak detector detects that the detected gas leakage amount is smaller than or equal to the threshold value after the detection space 20 is vacuumized, the tightness of the fuse tube is qualified, if the gas leak detector detects that the detected gas leakage amount is larger than the threshold value after the detection space 20 is vacuumized, the tightness of the fuse tube is unqualified, and then the tightness of the fuse tube can be judged according to whether the detected leakage amount of the gas leak detector is obviously changed.

Exemplary embodiments of the product tightness detection device proposed by the present disclosure are described and/or illustrated in detail above. Embodiments of the present disclosure are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or each step of one embodiment may also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. that are described and/or illustrated herein, the terms "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc., in addition to the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and in the description are used for descriptive purposes only and not for numerical limitation of their subject matter.

While the product tightness detection device proposed by the present disclosure has been described in terms of various specific embodiments, those skilled in the art will recognize that the disclosure can be practiced with modification within the spirit and scope of the claims.

Claims

1. A product tightness detection device, the product is hollow, and the bottom surface of the product is provided with an opening communicated with the inside of the product, the product tightness detection device is characterized by comprising:

the rack is provided with a supporting surface and a mounting surface surrounding the supporting surface, wherein the supporting surface is provided with an air charging hole and a first sealing ring surrounding the air charging hole, the supporting surface is used for bearing the bottom surface of a product and is sealed by the first sealing ring, and the mounting surface is provided with a second sealing ring;

the detection barrel is hollow, the bottom surface of the detection barrel is provided with an opening communicated with the inside of the detection barrel, the detection barrel is used for being sleeved outside a product, a detection space is formed between the detection barrel and the product, the bottom surface of the detection barrel is placed on the mounting surface and is sealed by the second sealing ring, and the detection barrel is also provided with a communication hole communicated with the detection space;

the compressing mechanism compresses the detection barrel on the mounting surface;

the vacuum pump is communicated with the communication hole and used for vacuumizing the detection space;

the inflator is communicated with the air charging hole and is used for charging detection gas into the product;

and the gas leak detector is communicated with the communication hole and is used for detecting whether the detection space has detection gas leakage after vacuumizing.

2. The product tightness detection device of claim 1 further comprising a mounting ring;

the mounting ring is vertically arranged on the top surface of the frame;

the mounting ring encloses at the frame top surface and is located the supporting surface of mounting ring inboard, the top surface of mounting ring is as the installation face, just the installation face is higher than the supporting surface.

3. The product tightness detection device of claim 2 further comprising a support ring;

the support ring is vertically arranged on the top surface of the frame and is positioned on the inner side of the mounting ring, and the top surface of the support ring is used as the support surface.

4. The product tightness detection device of claim 2 further comprising an inflation tube;

the inflation tube is vertically arranged on the supporting surface;

the inflation tube is used for penetrating into the product, and the inflation hole is formed in the inflation tube.

5. The product tightness detection device of claim 4 further comprising a sleeve;

the inside cavity of cover bucket, just the bottom surface of cover bucket has the intercommunication the inside opening of cover bucket, the cover bucket is used for wearing to locate in the product, and the cover is established outside the gas tube, the bottom surface of cover bucket bears on the holding surface, just still be equipped with the intercommunication on the cover bucket the inside venthole with inside the product of cover bucket.

6. The product tightness detection device of claim 1 further comprising a guide plate;

the guide plates are vertically arranged on the top surface of the frame, and a plurality of guide plates are arranged around the mounting surface and used for guiding the detection barrel.

7. The product tightness detection device of claim 1 wherein the detection bucket comprises a bucket body, a cover portion, and a ring portion;

the barrel body is internally communicated up and down;

the cover part is covered on the top of the barrel body, and the communication hole is arranged on the cover part;

the ring part is connected to the bottom of the barrel body and extends to the outer side of the barrel body, and the bottom surface of the ring part is borne on the mounting surface.

8. The product tightness detection device of claim 7 wherein said tub body and said ring are of unitary construction;

the ring part is provided with a plurality of screw holes surrounding the barrel body;

the cover part extends to the outer side of the barrel body, and is provided with a plurality of through holes which encircle the barrel body, and the through holes and the screw holes are in one-to-one correspondence;

the detection barrel further comprises a connecting rod and a nut;

the barrel body is surrounded by a plurality of connecting rods, one ends of the connecting rods are in threaded connection with the screw holes, and the other ends of the connecting rods penetrate through the through holes;

the nuts are positioned on one side of the cover part, which is opposite to the ring part, and the nuts are respectively screwed on the connecting rods so as to lock the cover part on the barrel body.

9. The product tightness detection device according to claim 7, wherein the pressing mechanism comprises a pressing portion and a rotary lifting cylinder;

the rotary lifting cylinder drives the pressing part to descend and rotate until the pressing part is pressed above the ring part, or drives the pressing part to ascend and rotate until the pressing part stands on one side of the ring part.

10. The product tightness detection device of claim 1 wherein a plurality of said hold down mechanisms are disposed around said detection barrel.