CN211178884U - Air tightness detection device - Google Patents
Air tightness detection device Download PDFInfo
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- CN211178884U CN211178884U CN201922443851.4U CN201922443851U CN211178884U CN 211178884 U CN211178884 U CN 211178884U CN 201922443851 U CN201922443851 U CN 201922443851U CN 211178884 U CN211178884 U CN 211178884U
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- rib
- sealing
- detection device
- groove
- sealing plate
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Abstract
The utility model discloses an airtightness detection device for the detection of metal casing (10), metal casing (10) open protruding (121) that end circumference set up including shell body (11) and along shell body (11), shell body (11) inside is injectd the open chamber (101) that holds of one end, airtightness detection device (100) include: the support plate (20), be formed with seal structure on the support plate (20), seal structure with protruding (121) cooperate with the closing cap the open end of metal casing (10) and sealed hold chamber (101), just dispose on the support plate (20) with hold air inlet (202) that the chamber (101) is linked together, air inlet (202) are linked together with outside air supply. The air tightness detection device can be used for quickly and effectively detecting the air tightness of the metal shell, and is high in reliability, simple in structure and convenient to operate.
Description
Technical Field
The utility model relates to the field of mechanical equipment, especially, relate to an air tightness detection device.
Background
The engine shell is an important component of an engine, the engine shell is usually a casting part, defects, such as small holes, often exist in the production and manufacturing process, the air tightness of the metal shell can be affected, and thus the service life of the engine can be reduced.
Disclosure of Invention
The utility model discloses aim at solving one of the problems that above-mentioned prior art exists, provide an air tightness detection device, this air tightness detection device can detect metal casing's gas tightness fast effectively, and the reliability is high, simple structure, convenient operation.
In order to achieve the above object, the utility model provides an air tightness detection device for metal casing's detection, metal casing includes the casing and opens the arch that sets up along the casing circumference, the inside open chamber that holds of one end of injecing of casing, air tightness detection device includes:
the backup pad, be formed with seal structure in the backup pad, seal structure with the protruding cooperation is with the closing cap the open end of metal casing is sealed hold the chamber, just dispose in the backup pad with hold the air inlet that the chamber is linked together, the air inlet is linked together with outside air supply.
In the technical scheme, the sealing structure is arranged on the supporting plate and can be matched with the bulge of the metal shell, so that the accommodating cavity of the metal shell forms a closed cavity, and an external air source injects air into the accommodating cavity with a closed air inlet, so that the air tightness of the metal shell can be visually perceived, for example, if an air leakage point exists on the surface of the metal shell, a split clamp sound is emitted, and the air leakage point is found out and returned to a workshop for continuous rectification; if no air leakage point exists on the metal surface, the split ends can not be sounded, and the airtightness of the metal shell can be visually judged to be good and the next metal shell can be detected; the air tightness detection device can be used for quickly and effectively detecting the air tightness of the metal shell, and is high in reliability, simple in structure and convenient to operate.
In addition, according to the utility model discloses an airtightness detection device can also have following technical characteristics:
in an example of the present invention, the sealing structure includes:
the sealing groove is formed in the supporting plate and is of an annular structure, and the protrusions are matched with the sealing groove.
In an example of the present invention, the sealing groove is a flexible member.
In an example of the present invention, the inner side wall of the sealing groove is at least formed with a first rib and a second rib, and the first rib and the second rib protrude from the inner side wall of the sealing groove.
In one example of the present invention, the first bead and the second bead have different bead heights.
In an example of the present invention, the first rib and the second rib are arranged at an interval in a height direction of the sealing groove, and are close to a height of the second rib at the end opened in the sealing groove is lower than a height of the first rib at the end opened in the sealing groove.
In an example of the present invention, the sealing structure includes:
the sealing plate is formed on the supporting plate and is of an annular structure, and the outer end face or the inner end face of the protrusion is matched with the inner end face or the outer end face of the sealing plate.
In an example of the present invention, the inner end surface or the outer end surface of the sealing plate is at least formed with a third rib and a fourth rib, the third rib and the fourth rib protrude in the inner end surface or the outer end surface of the sealing plate is close to the protrusion direction.
In an example of the present invention, the third rib and the fourth rib are arranged at an interval in a height direction of the sealing plate, and are close to the rib height of the fourth rib of the metal case is lower than the rib height of the third rib of the metal case.
In one example of the present invention, the sealing plate is a flexible member.
The following description of the preferred embodiments of the present invention will be made in detail with reference to the accompanying drawings, so that the features and advantages of the invention can be easily understood.
Drawings
Fig. 1 is a schematic structural diagram of an air-tightness detecting device according to an embodiment of the present invention;
fig. 2 is a sectional view taken along a-a of fig. 1 according to one embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at I;
fig. 4 is a sectional view taken along a-a of fig. 1 according to another embodiment of the present invention;
fig. 5 is a partial enlarged view at Q in fig. 2.
Reference numerals:
an air-tightness detecting device 100;
a metal case 10;
a housing chamber 101;
a case body 11;
an edge portion 12;
the protrusions 121;
a support plate 20;
a seal groove 201;
the first convex rib 2011;
a second bead 2012;
an air inlet 202;
a mounting hole 203;
a sealing plate 204;
a fourth rib 2042;
an intake pipe 21;
a pressure gauge 22.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the invention as defined by the claims. It includes various specific details to assist in this understanding, but these details should be construed as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that changes and modifications may be made to the various embodiments described herein without departing from the scope of the present invention, which is defined by the following claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
It will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims.
Furthermore, in the present application, the terms "comprises" and/or "comprising" are intended to indicate the presence of the features, quantities, operations, elements, and components, or combinations thereof, disclosed in the specification. Thus, the terms "comprising" and/or "having" should be understood as presenting additional possibilities for one or more other features, quantities, operations, elements, and components, or combinations thereof.
Although expressions such as "1 st", "2 nd", "first" and "second" may be used to describe the respective elements of the present invention, they are not intended to limit the corresponding elements. For example, the above expressions are not intended to limit the order or importance of the corresponding elements. The above expressions are used to distinguish one element from another.
References herein to "upper", "lower", "left", "right", etc. are merely intended to indicate relative positional relationships, which may change accordingly when the absolute position of the object being described changes.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular references include plural references unless there is a significant difference in context, scheme or the like between them.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
According to the utility model discloses a gas tightness detection device 100, as shown in FIG. 1, FIG. 2 and FIG. 4 for metal casing 10's detection, metal casing 10 includes shell 11 and opens the arch 121 that the end circumference set up along shell 11, shell 11 is inside to be injectd the open chamber 101 that holds of one end, gas tightness detection device 100 includes:
the support plate 20 is provided with a sealing structure, the sealing structure is matched with the protrusion 121 to cover the open end of the metal shell 10 and seal the accommodating cavity 101, the support plate 20 is provided with an air inlet 202 communicated with the accommodating cavity 101, and the air inlet 202 is communicated with an external air source.
That is, by providing the sealing structure on the supporting plate 20 to cooperate with the protrusion 121 of the metal shell 10, the accommodating cavity 101 of the metal shell 10 can form a closed cavity, and an external air source injects air into the accommodating cavity 101 closed by the air inlet 202, so that the air tightness of the metal shell 10 can be visually perceived, for example, if there is an air leakage point on the surface of the metal shell 10, the clamp can be sounded, so as to find the air leakage point and return to the workshop for continuous rectification; if no air leakage point exists on the metal surface, the split ends cannot be sounded, and the airtightness of the metal shell 10 can be visually judged to be good and the next metal shell 10 can be detected; the air tightness detection device 100 can rapidly and effectively detect the air tightness of the metal shell 10, and has the advantages of high reliability, simple structure and convenient operation.
In an example of the present invention, as shown in fig. 2 and 3, the sealing structure includes:
the sealing groove 201 is formed on the support plate 20 and has an annular structure, and the protrusion 121 is matched with the sealing groove 201; that is, the distribution structure of the sealing groove 201 corresponds to the protrusions 121 on the metal shell 10, so that the metal shell 10 can be covered on the support plate 20 by a crane (e.g., a crane), and the sealing performance of the metal shell 10 can be detected by injecting an external air source into the air inlet 202.
In an example of the present invention, the sealing groove 201 is a flexible member, for example, the sealing groove 201 is a rubber member, specifically, the sealing groove 201 can be injection molded onto the supporting plate 20 by injection molding, that is, the sealing groove 201 is integrated with the supporting plate 20 by injection molding, so that the overall structural strength is higher.
It can be understood that the span of the sealing groove 201 is slightly smaller than the thickness of the protrusion 121, so that when the protrusion 121 is fitted in the sealing groove 201, the sealing groove 201 is subjected to expansion deformation, so that the metal shell 10 and the sealing groove 201 are fitted more tightly, and the sealing effect is better.
In an example of the present invention, at least a first rib 2011 and a second rib 2012 are formed on an inner sidewall of the sealing groove 201, and the first rib 2011 and the second rib 2012 protrude from the inner sidewall of the sealing groove 201; more specifically, first protruding rib 2011 and second protruding rib 2012 all extend along the circumference of the inside wall of seal groove 201 and set up for first protruding rib 2011 and second protruding rib 2012 can offset completely with arch 121 and end the laminating, because seal groove 201 constitutes for deformable material, consequently under the extrusion of arch 121, first protruding rib 2011 and second protruding rib 2012 can take place to warp, make it laminate with arch 121 more closely, thereby help the sealed effect of seal groove 201 more.
In some embodiments of the present invention, the first rib 2011 and the second rib 2012 may be formed on both sides of the sealing groove 201, and may also be formed on the same side of the sealing groove 201.
In an example of the present invention, the first rib 2011 and the second rib 2012 have different rib heights, physically, the first rib 2011 and the second rib 2012 are arranged along the height direction interval of the sealing groove 201, and are close to the rib height of the second rib 2012 opened at the end of the sealing groove 201 is lower than the rib height of the first rib 2011 opened at the end of the sealing groove 201, so that the protrusion 121 of the metal shell 10 is gradually strengthened in the process of being matched with the sealing groove 201, and the sealing effect of the sealing groove 201 is more effectively improved.
In an example of the present invention, as shown in fig. 4 and 5, the sealing structure includes:
the sealing plate 204 is formed on the support plate 20 and is of an annular structure, and the outer end surface or the inner end surface of the protrusion 121 is matched with the inner end surface or the outer end surface of the sealing plate 204; for example, the seal plate 204 is disposed within the annular structure defined by the protrusion 121 such that a sealing effect is achieved when the outer end surface of the seal plate 204 mates with the inner end surface of the protrusion 121. Of course, the sealing plate 204 is similarly disposed outside the annular structure defined by the protrusion 121, and will not be described in detail here.
In an example of the present invention, at least a third rib 2041 and a fourth rib 20422014 are formed on the inner end surface or the outer end surface of the sealing plate 204, and the third rib 2041 and the fourth rib 2042 protrude from the inner end surface or the outer end surface of the sealing plate 204 and extend toward the direction close to the protrusion 121; more specifically, the third rib 2041 and the fourth rib 2042 are both arranged along the circumferential extension of the inner end surface or the outer end surface of the sealing plate 204, so that the third rib 2041 and the fourth rib 2042 can completely abut against the inner end surface or the outer end surface of the protrusion 121, and the sealing groove 201 is made of a deformable material, so that the third rib 2041 and the fourth rib 2042 can deform under the extrusion of the protrusion 121, so that the third rib 2041 and the fourth rib 2042 are more closely attached to the protrusion 121, and the sealing effect of the sealing plate 204 is more facilitated. The sealing effect of the sealing plate 204 can be improved by providing the third rib 2041 and the fourth rib 2042.
In an example of the present invention, the third ribs 2041 and the fourth ribs 2042 are arranged at intervals along the height direction of the sealing plate 204, and are close to the height of the fourth ribs 2042 of the metal shell 10 is lower than the height of the third ribs 2041 of the metal shell 10, so that the protrusion 121 of the metal shell 10 is gradually enhanced in the process of being matched with the sealing plate 204, and the sealing effect of the sealing plate 204 is more effectively improved.
In an example of the present invention, the sealing plate 204 is a flexible member, for example, the sealing plate 204 is a rubber member, specifically, the sealing plate 204 can be injection molded onto the supporting plate 20 by injection molding, that is, the sealing plate 204 is integrated with the supporting plate 20 by injection molding, so that the overall structural strength is higher.
It should be noted that an edge portion 12 is further formed along the outer end of the housing body 11, the edge portion 12 is provided with a positioning hole 122, in order to jack up the metal housing 10 when the air tightness is detected, in order to jack up the metal housing 10 when the air source pressure is too high, a mounting hole 203 corresponding to the positioning hole 122 may be provided at a corresponding position on the support plate 20, and the connection may be performed by a fastening member, so that the air tightness detection may be effectively performed, and generally, since the metal housing 10 has a large mass, the injected gas may not jack up the metal housing 10.
In an example of the present invention, the air inlet 202 of the supporting plate 20 is configured with an air inlet pipe 21, the air inlet pipe 21 is connected to the external air source, and the pressure gauge 22 is configured in the air inlet pipe 21, for example, when the external air stops being injected, the tightness of the metal shell 10 can be detected in real time through the pressure gauge 22, which is more intuitive and convenient.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Those skilled in the art will appreciate that various features of the various embodiments of the invention described hereinabove may be omitted, added to, or combined in any manner accordingly. Moreover, the simple transformation and the solution of adapting and functional structure transformation to the prior art, which can be thought of by those skilled in the art, all belong to the protection scope of the present invention.
While the invention has been shown and described with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. A gas tightness detection device for the detection of a metal shell (10), said metal shell (10) comprising a shell body (11) and a projection (121) circumferentially arranged along an open end of said shell body (11), said shell body (11) defining internally a housing chamber (101) open at one end, characterized in that said gas tightness detection device (100) comprises:
the support plate (20), be formed with seal structure on the support plate (20), seal structure with protruding (121) cooperate with the closing cap the open end of metal casing (10) and sealed hold chamber (101), just dispose on the support plate (20) with hold air inlet (202) that the chamber (101) is linked together, air inlet (202) are linked together with outside air supply.
2. The airtightness detection apparatus according to claim 1, wherein the sealing structure comprises:
the sealing groove (201), sealing groove (201) form in backup pad (20) just are the loop configuration, arch (121) with sealing groove (201) cooperatees.
3. The tightness detection device according to claim 2, characterized in that said sealing groove (201) is a flexible member.
4. The airtightness detection apparatus according to claim 2, wherein at least a first rib (2011) and a second rib (2012) are formed on an inner side wall of the seal groove (201), and the first rib (2011) and the second rib (2012) protrude from the inner side wall of the seal groove (201).
5. The tightness detection device according to claim 4, characterized in that said first bead (2011) and said second bead (2012) have different bead heights.
6. The airtightness detection apparatus according to claim 5, wherein the first rib (2011) and the second rib (2012) are arranged at intervals along a height direction of the seal groove (201), and a rib height of the second rib (2012) close to the open end of the seal groove (201) is lower than a rib height of the first rib (2011) away from the open end of the seal groove (201).
7. The airtightness detection apparatus according to claim 1, wherein the sealing structure comprises:
the sealing plate (204) is formed on the supporting plate (20) and is of an annular structure, and the outer end face or the inner end face of the protrusion (121) is matched with the inner end face or the outer end face of the sealing plate (204).
8. The airtightness detection apparatus according to claim 7, wherein at least a third rib (2041) and a fourth rib (2042) are formed on the inner end surface or the outer end surface of the sealing plate (204), and the third rib (2041) and the fourth rib (2042) protrude from the inner end surface or the outer end surface of the sealing plate (204) and extend in a direction approaching the protrusion (121).
9. The airtightness detection apparatus according to claim 8, wherein the third rib (2041) and the fourth rib (2042) are arranged at intervals in a height direction of the sealing plate (204), and a rib height of the fourth rib (2042) close to the metal housing (10) is lower than a rib height of the third rib (2041) away from the metal housing (10).
10. The tightness detection device according to claim 7, wherein the sealing plate (204) is a flexible member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443851.4U CN211178884U (en) | 2019-12-30 | 2019-12-30 | Air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443851.4U CN211178884U (en) | 2019-12-30 | 2019-12-30 | Air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211178884U true CN211178884U (en) | 2020-08-04 |
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ID=71799002
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922443851.4U Expired - Fee Related CN211178884U (en) | 2019-12-30 | 2019-12-30 | Air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211178884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112229A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Tightness detection device of gas turbine engine casing |
-
2019
- 2019-12-30 CN CN201922443851.4U patent/CN211178884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112229A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Tightness detection device of gas turbine engine casing |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 Termination date: 20201230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |