CN216789223U - Inflatable seal circle pressurize structure - Google Patents
Inflatable seal circle pressurize structure Download PDFInfo
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- CN216789223U CN216789223U CN202220505904.XU CN202220505904U CN216789223U CN 216789223 U CN216789223 U CN 216789223U CN 202220505904 U CN202220505904 U CN 202220505904U CN 216789223 U CN216789223 U CN 216789223U
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Abstract
The utility model relates to an inflatable sealing ring pressure maintaining structure which comprises a shell and an inflatable sealing ring arranged in the shell, wherein an inflatable cavity is arranged in the inflatable sealing ring, the inflatable sealing ring further comprises a pneumatic control normally-closed valve fixed on the shell, the pneumatic control normally-closed valve comprises a valve body, the valve body is provided with a control air end, an air inlet and outlet end and a sealing ring connecting end, the control air end is provided with a control air pipe connected with a control air source, the air inlet and outlet end is provided with an air inlet and outlet pipe connected with a sealed air source, the sealing ring connecting end is communicated with the inflatable cavity, and when the control air pipe does not admit air, the air inlet and outlet end and the sealing ring connecting end are in a disconnected state; when the control air pipe admits air, the air inlet and outlet end and the sealing ring connecting end are in a communicated state. By adopting the scheme, the utility model provides the inflatable sealing ring pressure maintaining structure capable of continuously maintaining the sealing function after air is cut off.
Description
Technical Field
The utility model relates to the field of pharmaceutical equipment, in particular to an inflatable sealing ring pressure maintaining structure.
Background
In the field of pharmacy, the inflatable sealing ring has wide application, is generally directly connected to the inflatable sealing ring through an air inlet pipeline, and is continuously inflated through an air inlet pipeline when the inflatable sealing ring needs to be sealed, so that the inflatable sealing ring keeps an inflatable expansion state, namely a sealing function.
In actual use, in order to prevent the material from absorbing moisture, a user still needs to keep the inflation expansion state of the inflation sealing ring after the operation equipment is stopped on the same day, but because the inflation is not continuously performed, air in the inflation sealing ring can be slowly released from the positions of the joints on the air inlet pipeline, the pressure maintaining time is generally less than one hour, and the user requirements are difficult to meet.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide an inflatable sealing ring pressure maintaining structure capable of continuously maintaining a sealing function after air is cut off.
In order to achieve the purpose, the utility model provides the following technical scheme: including the casing with install the inflatable seal circle in the casing, inflatable seal circle in be provided with and aerify chamber, its characterized in that: the pneumatic control normally-closed valve comprises a valve body, the valve body is provided with a control air end, an air inlet and outlet end and a sealing ring connecting end, the control air end is provided with a control air pipe connected with a control air source, the air inlet and outlet end is provided with an air inlet and outlet pipe connected with a sealing air source, the sealing ring connecting end is communicated with the inflation cavity, and when the control air pipe does not admit air, the air inlet and outlet end and the sealing ring connecting end are in a disconnected state; when the control air pipe admits air, the air inlet and outlet end and the sealing ring connecting end are in a communicated state.
By adopting the technical scheme, the pneumatic control normally-closed valve is additionally arranged, so that the state of the air inlet and outlet end and the connecting end of the sealing ring can be continuously cut off when air is cut off, the gas in the inflation cavity is prevented from flowing back to the air inlet and outlet pipe to be leaked, and the pressure is maintained for more than 12 hours; when air needs to be fed or discharged, the air inlet and outlet end can be communicated with the connecting end of the sealing ring only by continuously feeding air of the control air source into the control air end, so that the operation is simple and convenient; in addition, the air source is selected as the control source, the existing air source is reasonably utilized, the structure is more simplified, and the connection is more convenient.
The utility model is further configured to: still include adapter and aerify the closed tube, adapter one end offset and the valve body and be provided with the first screw hole of sealing washer link periphery screw-thread fit, the other end offsets and is provided with the second screw hole with first screw hole UNICOM with the casing lateral wall, aerify closed tube one end be located aerify the intracavity and be provided with spacing shirt rim spacing in aerifing the intracavity, the other end pass behind the casing wall with second screw hole screw-thread fit.
Through adopting above-mentioned technical scheme, by crossover sub with aerify the cooperation of communicating pipe, realize the sealing washer link with aerify the chamber UNICOM with valve body and aerify the stable limit of sealing washer in casing, guarantee assembly stability.
The utility model is further configured to: the casing be provided with the via hole that supplies to aerify the closed tube and pass, the via hole encircle to aerify the closed tube and be provided with the seal groove of seal cover and installation seal cover, the seal cover pressurized in aerifing between sealing washer and the seal groove.
Through adopting above-mentioned technical scheme, add the seal cover, guarantee to aerify the leakproofness between communicating pipe and the via hole, simultaneously, the seal cover still can be pressed between inflatable seal circle and seal groove, thereby increase the seal cover and strengthen sealed effect.
The utility model is further configured to: the casing in be provided with the chamber that holds inflatable seal circle, inflatable seal circle periphery be provided with spacing, hold the chamber and correspond with spacing and be provided with spacing cooperation of spacing, restriction inflatable seal circle and deviate from the spacing sunken that holds the chamber.
Through adopting above-mentioned technical scheme, by spacing and spacing cooperation of sinking, avoid among the working process inflatable seal to deviate from and hold the chamber, guarantee assembly stability and sealing stability.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the utility model discloses an inflatable sealing ring pressure maintaining structure, which comprises a shell 1 and an inflatable sealing ring 2 arranged in the shell 1, wherein an inflation cavity 21 is arranged in the inflatable sealing ring 2, the inflatable sealing ring further comprises an air-controlled normally-closed valve 3 fixed on the shell 1, the air-controlled normally-closed valve 3 comprises a valve body 31, the valve body 31 is provided with a control air end 32, an air inlet and outlet end 33 and a sealing ring connecting end 34, the control air end 32 is provided with a control air pipe 35 connected with a control air source, the air inlet and outlet end 33 is provided with an air inlet and outlet pipe 36 connected with a sealed air source, the sealing ring connecting end 34 is communicated with the inflation cavity 21, and when the control air pipe 35 does not admit air, the air inlet and outlet end 33 and the sealing ring connecting end 34 are in a disconnected state; when the control air pipe 35 is used for air intake, the air inlet and outlet end 33 and the sealing ring connecting end 34 are in a communicated state, the air control normally-closed valve 3 is additionally arranged, the state of the air inlet and outlet end 33 and the sealing ring connecting end 34 can be continuously cut off when air is cut off, and the gas in the inflation cavity 21 is prevented from flowing back to the air inlet and outlet pipe 36 to leak, so that the pressure maintaining is realized for more than 12 hours; when air inlet or air outlet is needed, the air inlet and outlet end 33 can be communicated with the sealing ring connecting end 34 only by continuously introducing air of a control air source into the control air end 32, so that the operation is simple and convenient; in addition, the air source is selected as a control source, the existing air source is reasonably utilized, the structure is simplified, and the connection is convenient.
Still include crossover sub 4 and aerify closed tube 5, 4 one end of crossover sub offsets and is provided with the first screw hole 41 with sealing washer link 34 periphery screw-thread fit with valve body 31, the other end offsets and is provided with the second screw hole 42 with first screw hole 41 UNICOM with 1 lateral wall of casing, aerify closed tube 5 one end be located aerify the chamber 21 and be provided with spacing shirt rim 51 spacing in aerifing the chamber 21, the other end passes behind the 1 wall of casing with second screw hole 42 screw-thread fit, by crossover sub 4 and aerify closed tube 5 cooperation, realize that sealing washer link 34 is stable spacing in casing 1 with valve body 31 and inflatable seal 2 when aerifing chamber 21 UNICOM, guarantee assembly stability.
The casing 1 is provided with the via hole 11 that supplies to aerify closed tube 5 and pass, and via hole 11 encircles aerifing closed tube 5 and is provided with seal cover 12 and the seal groove 13 of installation seal cover 12, and seal cover 12 pressurized between inflatable seal 2 and seal groove 13 adds seal cover 12, guarantees to aerify the leakproofness between closed tube 5 and the via hole 11, and simultaneously, seal cover 12 still can be pressurized between inflatable seal 2 and seal groove 13, thereby increases seal cover 12 and strengthens sealed effect.
Be provided with the chamber 14 that holds inflatable seal circle 2 in the casing 1, inflatable seal circle 2 periphery is provided with spacing 22, hold chamber 14 and spacing 22 correspond be provided with spacing 22 spacing cooperation, restriction inflatable seal circle 2 deviates from the spacing sunken 141 that holds chamber 14, by spacing 22 and the spacing sunken 141 spacing cooperation, inflatable seal circle 2 deviates from and holds chamber 14 in avoiding the course of the work, guarantee assembly stability and sealing stability.
Claims (4)
1. The utility model provides an inflatable seal circle pressurize structure, includes the casing and installs the inflatable seal circle in the casing, inflatable seal circle in be provided with and aerify chamber, its characterized in that: the pneumatic control normally-closed valve comprises a valve body, the valve body is provided with a control air end, an air inlet and outlet end and a sealing ring connecting end, the control air end is provided with a control air pipe connected with a control air source, the air inlet and outlet end is provided with an air inlet and outlet pipe connected with a sealing air source, the sealing ring connecting end is communicated with the inflation cavity, and when the control air pipe does not admit air, the air inlet and outlet end and the sealing ring connecting end are in a disconnected state; when the control air pipe admits air, the air inlet and outlet end and the sealing ring connecting end are in a communicated state.
2. The inflatable sealing ring pressure maintaining structure according to claim 1, wherein: still include adapter and aerify the closed tube, adapter one end offset and the valve body and be provided with the first screw hole of sealing washer link periphery screw-thread fit, the other end offsets and is provided with the second screw hole with first screw hole UNICOM with the casing lateral wall, aerify closed tube one end be located aerify the intracavity and be provided with spacing shirt rim spacing in aerifing the intracavity, the other end pass behind the casing wall with second screw hole screw-thread fit.
3. The inflatable sealing ring pressure maintaining structure according to claim 2, wherein: the casing be provided with the via hole that supplies to aerify the closed tube and pass, the via hole encircle to aerify the closed tube and be provided with the seal groove of seal cover and installation seal cover, the seal cover pressurized in aerifing between sealing washer and the seal groove.
4. The inflatable sealing ring pressure maintaining structure according to claim 1, wherein: the casing in be provided with the chamber that holds inflatable seal circle, inflatable seal circle periphery be provided with spacing, hold the chamber and correspond with spacing and be provided with spacing cooperation of spacing, restriction inflatable seal circle and deviate from the spacing sunken that holds the chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220505904.XU CN216789223U (en) | 2022-03-09 | 2022-03-09 | Inflatable seal circle pressurize structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220505904.XU CN216789223U (en) | 2022-03-09 | 2022-03-09 | Inflatable seal circle pressurize structure |
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| Publication Number | Publication Date |
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| CN216789223U true CN216789223U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220505904.XU Active CN216789223U (en) | 2022-03-09 | 2022-03-09 | Inflatable seal circle pressurize structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041511A1 (en) * | 2022-08-22 | 2024-02-29 | 温州职业技术学院 | Hopper butt-joint sealing structure and implementation method thereof |
-
2022
- 2022-03-09 CN CN202220505904.XU patent/CN216789223U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041511A1 (en) * | 2022-08-22 | 2024-02-29 | 温州职业技术学院 | Hopper butt-joint sealing structure and implementation method thereof |
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