CN217091709U - Mechanical control manual conversion sealing device - Google Patents
Mechanical control manual conversion sealing device Download PDFInfo
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- CN217091709U CN217091709U CN202123347655.0U CN202123347655U CN217091709U CN 217091709 U CN217091709 U CN 217091709U CN 202123347655 U CN202123347655 U CN 202123347655U CN 217091709 U CN217091709 U CN 217091709U
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- piston rod
- manual
- sliding sleeve
- mounting groove
- mechanical
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Abstract
A machine-controlled manual switching seal, comprising: be provided with the machine of mounting groove and control or manual breather, be provided with the piston rod in the mounting groove, manual breather is worn out at the top of piston rod and is provided with the handle, machine accuse or manual breather bottom is provided with the manual entry of ventilating, the piston rod bottom is provided with the nut, the piston rod lower part is equipped with the sliding sleeve, the cover is equipped with pressure spring on the piston rod between the inboard upper portion of sliding sleeve and the nut, the piston rod cover between sliding sleeve top and the mounting groove upper portion is equipped with the promotion spring, the sliding sleeve lower part corresponds and is provided with machine accuse entry of ventilating. The utility model discloses can open the gas passage entry all the way through pulling conversion handle, and seal another way gas passage entry, the utility model is simple in operation, it is nimble to use, has ensured the sealing reliability of two entries respectively.
Description
Technical Field
The utility model relates to a machinery installation field, especially a machine-controlled manual switching sealing device.
Background
During the inhalation anesthesia of a surgical patient using an anesthesia machine, mechanical ventilation of the patient typically has a mechanical ventilatory mode and a manual ventilatory mode.
Under the mechanical control ventilation mode, anesthesia fresh gas is automatically supplied to a patient according to the setting on the display screen of the anesthesia respirator through the program control of the anesthesia respirator; in the manual ventilation mode, anesthesia fresh gas is introduced into the patient's lungs by the physician squeezing the bladder by hand. In both modes, fresh anesthetic gas flows through two different gas passages, and when either ventilation mode is used, the other passage must be closed. The conversion between the conventional mechanical control ventilation mode and the manual ventilation mode is too complicated. Therefore, how to manufacture a mechanically-controlled and manually-switched sealing device capable of solving the problems of the prior art is a technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses just based on above-mentioned technical problem, provided a manual conversion sealing device of machine accuse to solve the problem that exists among the above-mentioned background art.
In view of this, the utility model provides a manual conversion sealing device of machine accuse, it includes: the mechanical control manual ventilation device is provided with a mounting groove, a piston rod is arranged in the mounting groove, the top of the piston rod penetrates out of the manual ventilation device and is provided with a handle, a manual ventilation inlet is formed in the bottom of the manual ventilation device, a nut is arranged at the bottom of the piston rod which penetrates out of the manual ventilation inlet, a sliding sleeve is slidably arranged on the lower portion of the piston rod, a compression spring is sleeved on the piston rod between the upper portion of the inner side of the sliding sleeve and the nut, a push-up spring is sleeved on the piston rod between the top of the sliding sleeve and the upper portion of the mounting groove, and a mechanical control ventilation inlet is correspondingly formed in the lower portion of the sliding sleeve.
Further, the stroke distance of the piston rod is larger than the distance between the mechanical control ventilation inlet and the manual ventilation inlet.
Furthermore, the diameter of the sliding sleeve is larger than the diameters of the mechanical control ventilation inlet and the manual ventilation inlet.
Furthermore, the upper surface and the lower surface of sliding sleeve be provided with the ring channel respectively, the ring channel in be provided with the sealed pad of silica gel.
Furthermore, a sealing sleeve is arranged at the lower part of the sliding sleeve.
Furthermore, the handle is Y-shaped and is arranged at the top of the handle of the piston rod through a pin shaft.
Furthermore, the bottom of the piston rod handle is provided with a thread structure, and the nut is arranged at the bottom of the piston rod handle through the thread structure.
Furthermore, the inner side of the mounting groove is provided with a sealing ring at the position communicated with other instruments.
The utility model provides a machine-controlled manual switching sealing device, compared with the prior art, the utility model discloses in machine accuse and manual mode switching process, make these two springs act on the force of sliding sleeve change through the compression change of pressure spring and boosting spring, utilize the resultant force of two spring forces to realize that the silica gel sealing gasket can reliably seal at two gas inlet surfaces; the utility model discloses a design the stroke of piston rod between upper and lower position and to be greater than between two gas inlets apart from, can make the sealed pad of silica gel remove to the sealed face contact of entry and seal fully, consequently can eliminate two distances between the entry of ventilating and have the error and arouse the sealed not tight condition.
The utility model discloses can open gas passage entry all the way through pulling conversion handle, and seal another way gas passage entry, the utility model is simple in operation, it is nimble to use, has ensured the sealing reliability of two entries respectively.
Drawings
Fig. 1 shows a cross-sectional view of the present invention in a mechanically controlled aeration mode;
fig. 2 shows a cross-sectional view of the present invention in a manual ventilation mode;
in the figure: the device comprises a handle 1, a first sealing ring 2, a second sealing ring 3, a silica gel sealing gasket 4, a nut 5, a sealing sleeve 6, a sliding sleeve 7, a push-up spring 8, a compression spring 9, a piston rod 10, a mechanical control ventilation inlet 11 and a manual ventilation inlet 12.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the disclosure below.
The technical solution of the present invention is further explained with reference to fig. 1 and 2.
A first embodiment, as shown in fig. 1 and 2: a machine-controlled manual switching seal, comprising: a machine-controlled manual ventilation device provided with an installation groove, a piston rod 10 is arranged in the installation groove, the top of the piston rod 10 penetrates through the mechanical control manual ventilation device and is provided with a handle 1, the piston rod 10 can move up and down in the mounting groove through the handle 1, the bottom of the machine-controlled manual ventilation device is provided with a manual ventilation inlet 12, the bottom of the piston rod 10 penetrates through the manual ventilation inlet 12 and is provided with a nut 5, the lower part of the piston rod 10 is slidably provided with a sliding sleeve 7, the sliding sleeve 7 can slide up and down along the piston rod 10, a compression spring 9 is sleeved on the piston rod 10 between the upper part of the inner side of the sliding sleeve 7 and the nut 5, the piston rod 10 between the top of the sliding sleeve 7 and the upper part of the mounting groove is sleeved with a push-up spring 8, and the lower part of the sliding sleeve 7 is correspondingly provided with a machine control ventilation inlet 11.
The stroke interval of the piston rod 10 is larger than the interval between the mechanical control ventilation inlet 11 and the manual ventilation inlet 12; the diameter of the sliding sleeve 7 is larger than the diameters of the mechanical control ventilation inlet 11 and the manual ventilation inlet 12; the upper surface and the lower surface of sliding sleeve 7 be provided with the ring channel respectively, the ring channel in be provided with the sealed 4 that fills up of silica gel, the sealed 4 that fills up of silica gel with sliding sleeve 7 two upper and lower surfaces closely laminate.
The sliding sleeve 7 is in a cross shape, and the lower part of the sliding sleeve 7 is provided with a sealing sleeve 6; the handle 1 is Y-shaped, and the handle 1 is arranged at the top of the piston rod 10 through a pin shaft; the bottom of the piston rod 10 is provided with a thread structure, and the nut 5 is arranged at the bottom of the piston rod 10 through the thread structure; sealing rings for preventing gas leakage are arranged at the positions where the inner side of the mounting groove is communicated with other instruments; the sealing ring is O-shaped and comprises a first sealing ring 2 and a second sealing ring 3.
In the use process: when the handle 1 is turned rightwards to the state shown in fig. 1, the piston rod 10 and the adjusting nut 5 move upwards together, the boosting spring 8 is compressed to increase the elastic force, and when the upward sliding force acting on the sliding sleeve 7 is enough to overcome the downward sliding force acting on the sliding sleeve 7 by the pressing spring 9 (ignoring the gravity of all parts), the sliding sleeve 7 and the two silica gel sealing gaskets 4 move upwards together until the upper silica gel sealing gasket 4 contacts the surface of the manual ventilation inlet 12 and then receives resistance to stop moving;
at this time, the compression amount of the pushing-up spring 8 can be changed by rotating the adjusting nut 5, so that the force of the pushing-up spring 8 acting on the sliding sleeve 7 is larger than the force of the pressing spring 9 acting on the sliding sleeve 7, namely, the resultant force of the two springs acting on the sliding sleeve 7 is upward, thereby pressing the silicone gasket 4 on the surface of the manual ventilation inlet 12, closing the manual ventilation inlet 12 and preventing fresh anesthetic gas from flowing into the manual ventilation channel from the inlet.
If the handle 1 is turned leftwards to the state shown in fig. 2, the piston rod 10 moves downwards together with the adjusting nut 5, the compression amount of the pushing and lifting spring 8 is reduced, the elastic force is reduced, when the downward force of the pressing spring 9 acting on the sliding sleeve 7 is larger than the upward force of the pushing and lifting spring 8 acting on the sliding sleeve 7, the sliding sleeve 7 drives the silica gel sealing gasket 4 to move downwards away from the surface of the manual ventilation inlet 12 until the lower silica gel sealing gasket 4 contacts with the surface of the mechanical ventilation inlet 11 and then is stopped moving due to resistance;
because the stroke of the piston rod 10 between the upper position and the lower position is designed to be larger than the distance between the two gas inlets, after the lower silica gel sealing gasket 4 is contacted with the surface of the machine control gas inlet 11, the elastic force of the pressing spring 9 is larger than the elastic force of the pushing and lifting spring 8, namely the resultant force of the two springs acting on the sliding sleeve 7 is downward, so that the silica gel sealing gasket 4 is pressed on the surface of the machine control gas inlet 11, the inlet is closed, and fresh anesthetic gas flows to the manual gas inlet and enters the manual gas channel.
The utility model discloses be not limited to machine accuse manual switch-over time sealed, still can be applied to breathe the air inlet of sealed difference when breathing return circuit lime jar switches over with the bypass.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but is susceptible to various modifications and changes by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a machine-controlled manual switching sealing device which characterized in that: the mechanical or manual ventilation device comprises a mechanical or manual ventilation device with a mounting groove, a piston rod is arranged in the mounting groove, the top of the piston rod penetrates out of the mechanical or manual ventilation device and is provided with a handle, the bottom of the mechanical or manual ventilation device is provided with a manual ventilation inlet, the bottom of the piston rod penetrates out of the manual ventilation inlet and is provided with a nut, the lower part of the piston rod is provided with a sliding sleeve in a sliding manner, a compression spring is sleeved on the piston rod between the upper part of the inner side of the sliding sleeve and the nut, a push-up spring is sleeved on the piston rod between the top of the sliding sleeve and the upper part of the mounting groove, and the lower part of the sliding sleeve is correspondingly provided with a mechanical or manual ventilation inlet.
2. The mechanically controlled manual switching seal device of claim 1, wherein: the stroke distance of the piston rod is larger than the distance between the mechanical control ventilation inlet and the manual ventilation inlet.
3. The mechanically controlled manual switching seal device of claim 2, wherein: the diameter of the sliding sleeve is larger than the diameters of the mechanical control ventilation inlet and the manual ventilation inlet.
4. The mechanically controlled manual switching seal device of claim 3, wherein: the upper surface and the lower surface of sliding sleeve be provided with the ring channel respectively, the ring channel in be provided with the sealed pad of silica gel.
5. The mechanically controlled manual switching seal device of claim 4, wherein: and a sealing sleeve is arranged at the lower part of the sliding sleeve.
6. The mechanically controlled manual switching seal device of claim 5, wherein: the handle is Y-shaped and is arranged at the top of the piston rod through a pin shaft.
7. The mechanically controlled manual switching seal device of claim 6, wherein: the bottom of the piston rod is provided with a thread structure, and the nut is arranged at the bottom of the piston rod through the thread structure.
8. The mechanically controlled manual switching seal of claim 7 wherein: and sealing rings are arranged at the communicated parts of the inner side of the mounting groove and other instruments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123347655.0U CN217091709U (en) | 2021-12-29 | 2021-12-29 | Mechanical control manual conversion sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123347655.0U CN217091709U (en) | 2021-12-29 | 2021-12-29 | Mechanical control manual conversion sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN217091709U true CN217091709U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123347655.0U Active CN217091709U (en) | 2021-12-29 | 2021-12-29 | Mechanical control manual conversion sealing device |
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| Country | Link |
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| CN (1) | CN217091709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115177831A (en) * | 2021-12-29 | 2022-10-14 | 北京航天长峰股份有限公司 | Mechanical control manual conversion sealing device |
-
2021
- 2021-12-29 CN CN202123347655.0U patent/CN217091709U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115177831A (en) * | 2021-12-29 | 2022-10-14 | 北京航天长峰股份有限公司 | Mechanical control manual conversion sealing device |
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