CN215889861U - Inflatable sealing structure - Google Patents
Inflatable sealing structure Download PDFInfo
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- CN215889861U CN215889861U CN202120769937.0U CN202120769937U CN215889861U CN 215889861 U CN215889861 U CN 215889861U CN 202120769937 U CN202120769937 U CN 202120769937U CN 215889861 U CN215889861 U CN 215889861U
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- inflatable
- sealing ring
- inflatable sealing
- sleeve
- mounting groove
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Abstract
The utility model discloses an inflatable sealing structure which comprises an inflatable sealing ring, wherein a cavity is arranged in the inflatable sealing ring, a hermetic sealing installation groove is formed in the outer side of the inflatable sealing ring, the outer wall of the inflatable sealing ring is attached to the inner wall of the hermetic sealing installation groove, the bottom of the inflatable sealing ring is arranged in the hermetic sealing installation groove, the top of the inflatable sealing ring extends out of the hermetic sealing installation groove or retracts into the hermetic sealing installation groove according to the inflation pressure in the cavity, a hermetic sealing inflation inlet communicated with the cavity of the inflatable sealing ring is formed in the bottom of the inflatable sealing ring, the inflatable sealing ring is connected with the hermetic sealing inflation inlet in a sealing mode, and a small boss is arranged between the outer side of the bottom of the inflatable sealing ring and the inner wall of the hermetic sealing installation groove. According to the utility model, the small boss is additionally arranged on the side surface of the bottom of the inflatable sealing ring, so that the inflatable sealing ring can be fully attached to the airtight mounting groove and is not easy to fall off, meanwhile, the part close to the sealing ring can be easily stretched, the sealing effect on the isolator door is achieved, and the reliability of the inflatable sealing system is improved.
Description
Technical Field
The utility model relates to an inflatable sealing structure, in particular to an inflatable sealing ring for sealing an isolator door, and belongs to the technical field of sealing.
Background
With the implementation of new GMP in china, isolators are becoming an indispensable equipment in the production of sterile drugs, and the isolators themselves are the production environments for providing sterile drugs, and it is most important to keep the isolators of operators completely outside the production environments. Although the isolator needs to be in a completely closed state in the production process, the internal equipment needs to be overhauled, maintained and cleaned in daily maintenance, and therefore the door seal of the isolator needs to be convenient for the door to be opened for internal equipment operation and easy to recover, and air tightness in the production process is kept.
At present, the inflatable sealing ring adopted by the isolator door has the following defects:
1. the inflatable sealing ring is arranged in the mounting groove, and if the width of the mounting groove is too large, the inflatable sealing ring is easy to drop downwards; if the width undersize of mounting groove, then aerify the sealing washer by too tight, need expand when sealing in aerifing, the pressure of the compressed air of needs can be very big, and sealed back air seal circle is difficult to retract, influences opening of door.
So at present in order to solve above-mentioned problem, generally can normally stretch out and draw back for guaranteeing inflatable seal ring, loose the broad of the tolerance design of mounting groove, then for avoiding inflatable seal ring to drop, inflatable seal ring's the back is with gluing the bottom to the mounting groove, avoids dropping. The other problem is caused, namely, after the inflatable sealing ring is disassembled and assembled for several times, the glue is not adhered and cannot be used; secondly, after long-term use, the glue can be dried and can not stick after drying, and the inflatable sealing ring can still fall off.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: under the condition of guaranteeing that the inflatable sealing ring can normally stretch out and draw back, the problem of how to avoid the inflatable sealing ring to drop from the mounting groove is solved.
In order to solve the technical problems, the technical scheme of the utility model is to provide an inflatable sealing structure which comprises an inflatable sealing ring, wherein a cavity which changes according to the inflation pressure is arranged in the inflatable sealing ring, an airtight mounting groove is formed in the outer side of the inflatable sealing ring, the outer wall of the inflatable sealing ring is attached to the inner wall of the airtight mounting groove, the bottom of the inflatable sealing ring is arranged in the airtight mounting groove, the top of the inflatable sealing ring extends out of the airtight mounting groove or retracts into the airtight mounting groove according to the inflation pressure in the cavity, an airtight inflation opening communicated with the cavity of the inflatable sealing ring is formed in the bottom of the inflatable sealing ring, and the inflatable sealing ring is connected with the airtight inflation opening in a sealing mode.
Preferably, a small boss is arranged on the outer side of the bottom of the inflatable sealing ring; or the outer side of the bottom of the inflatable sealing ring is uniformly provided with at least two small bosses; or the outer side of the bottom of the inflatable sealing ring is provided with a small boss which surrounds the inflatable sealing ring by a circle.
Preferably, the air-tight sealing installation groove is of a U-shaped structure with an opening at the bottom; the top of the air-tight seal installation groove is an open opening convenient for the expansion of the inflatable seal ring, and the bottom of the air-tight seal installation groove is provided with a small hole for the air supply sealing inflation inlet to penetrate through.
Preferably, the air-tight seal inflation inlet comprises an inflation connecting pipe, one end of the inflation connecting pipe is arranged in the inflation sealing ring, the other end of the inflation connecting pipe is fixedly connected with the sleeve, and the sleeve is in sealing connection with the inflation sealing ring through a sealing sleeve.
Preferably, the sleeve is a threaded sleeve, and the inflation connecting pipe is in threaded connection with the sleeve.
Preferably, the sealing sleeve is sleeved on the outer side of the sleeve; the sealing sleeve is a rubber sleeve.
Preferably, the section of the inflation connecting pipe is of a T-shaped structure; the big end of the T-shaped structure is arranged in the inflatable sealing ring and clings to the inner wall of the cavity of the inflatable sealing ring, and the small end of the T-shaped structure is fixedly connected with the sleeve.
According to the utility model, the small boss is additionally arranged on the side surface of the bottom of the inflatable sealing ring, so that the inflatable sealing ring can be fully attached to the airtight mounting groove and is not easy to fall off, meanwhile, the part close to the sealing ring can be easily stretched, the sealing effect on the isolator door is achieved, and the reliability of the inflatable sealing system is improved.
The utility model only improves the structure of the inflatable sealing ring, and solves the problem that the inflatable sealing ring is easy to fall off on the basis that the whole inflatable sealing system is not changed greatly, so that the isolator door is more reliably sealed, and the door is more convenient to open and close.
Drawings
FIG. 1 is a schematic view of an inflatable sealing structure;
FIG. 2 is a schematic illustration of an inflatable sealing structure when not inflated;
fig. 3 is a schematic view of an inflatable sealing structure when sealed by inflation.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The utility model provides an inflatable sealing structure, as shown in figure 1, which comprises an airtight inflating opening 2 and an airtight mounting groove 3, the inflatable seal ring 4 is provided with a cavity which changes according to the inflation pressure, the outer side of the inflatable seal ring 4 is provided with an airtight mounting groove 3, the outer wall of the inflatable seal ring 4 is attached to the inner wall of the airtight mounting groove 3, the bottom of the inflatable seal ring 4 is arranged in the airtight mounting groove 3, the top of the inflatable seal ring 4 extends out of the airtight mounting groove 3 or retracts into the airtight mounting groove 3 according to the inflation pressure in the cavity, the bottom of the inflatable seal ring 4 is provided with an airtight inflation opening 2 communicated with the cavity of the inflatable seal ring 4, the inflatable seal ring 4 is in sealed connection with the airtight inflation opening 2, the airtight inflation opening 2 is only one inlet and outlet of the inflatable seal ring 4, and a small boss 7 is arranged between the outer side of the bottom of the inflatable seal ring 4 and the inner wall of the airtight mounting groove 3.
A small boss 7 is arranged on the outer side of the bottom of the inflatable sealing ring 4; or the outer side of the bottom of the inflatable sealing ring 4 is uniformly provided with at least two small bosses 7; or the outer side of the bottom of the inflatable sealing ring 4 is provided with a small boss 7 which surrounds the inflatable sealing ring 4 by a circle. In this embodiment, the small bosses 7 are disposed on two side surfaces of the inflatable sealing ring 4 near the bottom of the airtight mounting groove 3.
The air-tight seal mounting groove 3 is of a U-shaped structure with an opening at the bottom; the top of the air-tight seal installation groove 3 is an open opening for facilitating the expansion of the inflatable seal ring 4, and the bottom of the air-tight seal installation groove 3 is provided with a small hole for the air-tight seal inflation inlet 2 to penetrate through.
The air-tight seal inflation inlet 2 comprises an inflation connecting pipe 10, one end of the inflation connecting pipe 10 is arranged in the inflation sealing ring 4, the other end of the inflation connecting pipe 10 is fixedly connected with a sleeve 9, and the sleeve 9 is in sealing connection with the inflation sealing ring 4 through a sealing sleeve 8.
Wherein, the sleeve 9 is a threaded sleeve, and the inflation connecting pipe 10 is connected with the sleeve 9 through threads. The sealing sleeve 8 is sleeved outside the sleeve 9; the sealing sleeve 8 is a rubber sleeve. The section of the inflation connecting pipe 10 is of a T-shaped structure; the big end of the T-shaped structure is arranged in the inflatable sealing ring 4 and clings to the inner wall of the cavity of the inflatable sealing ring 4, and the small end of the T-shaped structure is fixedly connected with the sleeve 9.
In an initial state, the top of the inflatable sealing ring 4 is arranged in the air sealing installation groove 3; after the cavity of the inflatable sealing ring 4 is inflated, the pressure in the cavity is increased, and the top of the inflatable sealing ring 4 extends out of the end part of the airtight mounting groove 3; after the cavity of the inflatable sealing ring 4 is deflated, the pressure in the cavity is changed into the pressure in the initial state, and one end of the inflatable sealing ring 4 extending out of the airtight mounting groove 3 retracts into the airtight mounting groove 3.
According to the utility model, the bottom of the inflatable sealing ring 4 can be tensioned with the airtight mounting groove 3 through the small boss 7, the inflatable sealing ring is not easy to fall off, and meanwhile, the part of the inflatable sealing ring 4 close to the sealing surface (namely the top of the inflatable sealing ring 4) can be easily stretched and contracted to achieve the effect of sealing and separating the door 5, as shown in figures 2 and 3, when the structure is used, the structure is arranged between the inner wall 1 of the isolator and the outer wall 6 of the isolator, and the sealing surface of the inflatable sealing ring 4 faces and aligns to the door 5.
The operator can control the inflation port 2 of the airtight seal through the control system, thereby controlling the inflation and deflation of the inflatable sealing ring 4. The state of the inflatable sealing ring 4 when inflated is as shown in fig. 2, when the inflatable sealing ring 4 is inflated, the inflatable sealing ring 4 extends out to seal the door 5, so that the inside of the isolator is isolated from the external environment, and the air tightness of the isolator is ensured.
No matter when the inflatable seal ring 4 is inflated or not inflated, the bottom of the inflatable seal ring 4 can be fully adhered to the air sealing installation groove 3 and is not easy to move due to the action of the small boss 7 on the side face of the bottom of the inflatable seal ring 4, so that the inflatable seal ring 4 is not easy to fall off even when the inflatable seal ring is not inflated, and meanwhile, the part of the inflatable seal ring 4 close to the sealing surface can be easily stretched and retracted to play a role in sealing the door 5 when the inflatable seal ring is inflated.
Claims (7)
1. An inflatable sealing structure comprises an inflatable sealing ring (4), a cavity which changes according to the inflation pressure is arranged in the inflatable sealing ring (4), an airtight mounting groove (3) is arranged on the outer side of the inflatable sealing ring (4), the outer wall of the inflatable sealing ring (4) is attached to the inner wall of the airtight mounting groove (3), the bottom of the inflatable sealing ring (4) is arranged in the airtight mounting groove (3), the top of the inflatable sealing ring (4) extends out of the airtight mounting groove (3) or retracts into the airtight mounting groove (3) according to the inflation pressure in the cavity, an airtight inflation opening (2) communicated with the cavity of the inflatable sealing ring (4) is arranged at the bottom of the inflatable sealing ring (4), and the inflatable sealing ring (4) is in sealed connection with the airtight inflation opening (2), the air-tight sealing device is characterized in that a small boss (7) is arranged between the outer side of the bottom of the air-tight sealing ring (4) and the inner wall of the air-tight sealing installation groove (3).
2. An inflatable seal according to claim 1, characterised in that the outer side of the bottom of the inflatable gasket (4) is provided with a small boss (7); or the outer side of the bottom of the inflatable sealing ring (4) is uniformly provided with at least two small bosses (7); or the outer side of the bottom of the inflatable sealing ring (4) is provided with a small boss (7) which surrounds the inflatable sealing ring (4) by a circle.
3. An inflatable sealing structure according to claim 1, characterized in that the airtight mounting groove (3) is a U-shaped structure with an opening at the bottom; the top of the air-tight seal mounting groove (3) is an open opening convenient for the expansion of the air-tight seal ring (4), and the bottom of the air-tight seal mounting groove (3) is provided with a small hole for the air-tight seal inflation inlet (2) to pass through.
4. An inflatable sealing structure according to claim 1 or 3, characterized in that the air-tight sealing opening (2) comprises an inflatable connecting pipe (10), one end of the inflatable connecting pipe (10) is arranged in the inflatable sealing ring (4), the other end of the inflatable connecting pipe (10) is fixedly connected with the sleeve (9), and the sleeve (9) is hermetically connected with the inflatable sealing ring (4) through a sealing sleeve (8).
5. An inflatable sealing structure according to claim 4, characterized in that the sleeve (9) is a threaded sleeve, and the inflatable connecting tube (10) is in threaded connection with the sleeve (9).
6. An inflatable sealing structure according to claim 4, characterized in that said sealing sleeve (8) is fitted over the outside of the sleeve (9); the sealing sleeve (8) is a rubber sleeve.
7. An inflatable seal according to claim 4, characterised in that said inflatable connecting tube (10) has a T-shaped cross-section; the big head end of the T-shaped structure is arranged in the inflatable sealing ring (4) and clings to the inner wall of the cavity of the inflatable sealing ring (4), and the small head end of the T-shaped structure is fixedly connected with the sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120769937.0U CN215889861U (en) | 2021-04-15 | 2021-04-15 | Inflatable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120769937.0U CN215889861U (en) | 2021-04-15 | 2021-04-15 | Inflatable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215889861U true CN215889861U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120769937.0U Active CN215889861U (en) | 2021-04-15 | 2021-04-15 | Inflatable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215889861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739605A (en) * | 2022-04-14 | 2022-07-12 | 南京铖联激光科技有限公司 | 3D prints removal inflatable seal device |
-
2021
- 2021-04-15 CN CN202120769937.0U patent/CN215889861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739605A (en) * | 2022-04-14 | 2022-07-12 | 南京铖联激光科技有限公司 | 3D prints removal inflatable seal device |
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