CN219572167U - Positive and negative pressure switching equipment for operating room - Google Patents
Positive and negative pressure switching equipment for operating room Download PDFInfo
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- CN219572167U CN219572167U CN202320621429.7U CN202320621429U CN219572167U CN 219572167 U CN219572167 U CN 219572167U CN 202320621429 U CN202320621429 U CN 202320621429U CN 219572167 U CN219572167 U CN 219572167U
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- operating room
- negative pressure
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- pressure switching
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Abstract
The utility model discloses positive and negative pressure switching equipment for an operating room, and belongs to the technical field of positive and negative pressure switching equipment for the operating room. The device mainly comprises a shell, wherein a bottom plate is arranged in the shell, a baffle plate is arranged on the inner side of the bottom plate, and a backflow cavity is formed by the baffle plate and the bottom plate; a first seal mounted adjacent the operating room, the first seal adapted for air flow into the housing in the operating room; a second seal mounted at a location remote from the operating room; the second air outlet penetrates through the partition plate; the first air outlet penetrates through the bottom plate and is communicated with the backflow cavity and the operating room; a blower mounted in the housing; according to the positive and negative pressure switching equipment for the operating room, the reflux mechanism is arranged, so that the reflux mechanism and the positive and negative pressure switching equipment for the operating room are integrally arranged, and the problem that an existing air self-circulation system and the positive and negative pressure system of the operating room work independently of each other is solved.
Description
Technical Field
The utility model relates to the technical field of operating room positive and negative pressure switching equipment, in particular to operating room positive and negative pressure switching equipment.
Background
The positive-negative pressure conversion operating room is the integration of the positive pressure operating room and the negative pressure operating room, and the positive pressure working condition and the negative pressure working condition are comprehensively considered. In the positive pressure state, the ventilation system mainly protects the operation patient aiming at the common patient. In the negative pressure state, the device aims at infectious disease patients, particularly patients with severe respiratory tract infectious disease, and aims at protecting outdoor surrounding environment and avoiding infection outside and inside a hospital caused by leakage of pollutants.
For example, the utility model patent with the publication number of CN213931231U specifically discloses that the positive and negative pressure switching operation room air conditioning system realizes the switching of positive and negative pressure in the operation room by being connected with an external air conditioning system.
However, although the switching between the positive and negative pressure in the operating room is conveniently realized in the above-mentioned patent, the self-circulation of the air in the operating room cannot be realized, and most of the existing air self-circulation system and the positive and negative pressure system in the operating room work independently of each other, so that the occupied area is large, electric energy is consumed, and the operating room is very inconvenient to operate, so that it is necessary to provide an operating room positive and negative pressure switching device to solve the above-mentioned problems.
It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and, therefore, it may contain information that does not constitute prior art.
Disclosure of Invention
Based on the above problems existing in the prior art, the present utility model aims to solve the problems: the positive and negative pressure switching equipment for the operating room solves the problem that an existing air self-circulation system and the positive and negative pressure system of the operating room work independently.
The technical scheme adopted for solving the technical problems is as follows: the positive and negative pressure switching equipment for the operating room comprises a shell, wherein a bottom plate is arranged in the shell, a baffle plate is arranged on the inner side of the bottom plate, and a backflow cavity is formed by the baffle plate and the bottom plate; a first seal mounted adjacent the operating room, the first seal adapted for air flow into the housing; the first sealing valve is arranged in the shell and is suitable for opening or closing the first seal; a second seal mounted at a location remote from the operating room; the second air outlet penetrates through the partition plate; the second sealing valve is arranged in the shell and is suitable for opening or closing the second seal and the second air outlet; the first air outlet penetrates through the bottom plate and is communicated with the backflow cavity and the operating room; a blower mounted in the housing; the positive and negative pressure switching equipment is suitable for switching among a positive pressure state, a negative pressure state and a reflux state under the cooperation of the fan, the first closed valve and the second closed valve.
Further, a first sealing valve is installed in the shell, the first sealing valve comprises a first motor installed on the shell and a first stop block fixedly installed on the output end of the first motor, and therefore the first stop block is suitable for rotating under the driving of the first motor so as to open or close the first seal.
Further, a second airtight valve is installed in the shell, the second airtight valve comprises a second motor installed on the shell and a second stop block fixedly installed on the output end of the second motor, and therefore the second stop block is suitable for rotating under the driving of the second motor so as to open or close a second air outlet.
Further, a first filtering part is arranged in the shell, the first filtering part comprises a clamping groove arranged on the shell, and a filter element is arranged in the clamping groove; the filter element is matched with the clamping groove in a clamping groove mode, and the filter element can be pulled out of the clamping groove so as to clean the filter element.
Further, an ultraviolet lamp for sterilization is arranged in the shell.
Further, a second filtering part is arranged in the shell, and the second filtering part is identical to the first filtering part in arrangement.
The beneficial effects of the utility model are as follows: according to the positive and negative pressure switching equipment for the operating room, provided by the utility model, the reflux mechanism is arranged, so that the reflux mechanism and the positive and negative pressure switching equipment for the operating room are integrally arranged, and the problem that the existing air self-circulation system and the positive and negative pressure system of the operating room work independently of each other is solved.
In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
In the drawings:
FIG. 1 is an overall schematic diagram of an operating room positive and negative pressure switching device according to the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a partial schematic view of FIG. 2 at A;
FIG. 4 is a partial schematic view of B in FIG. 2;
FIG. 5 is a partial schematic view of FIG. 2C;
wherein, each reference sign in the figure:
1. a housing; 2. a cover plate; 3. a sealing plate; 4. a first sealing valve; 41. a first motor; 42. a first stopper; 43. a first seal; 44. a first air outlet; 5. a first filtering part; 51. a second filtering part; 52. a filter element; 53. a clamping groove; 6. a blower; 7. a baffle; 8. an ultraviolet lamp; 9. a bottom plate; 10. a second sealing valve; 101. a second motor; 102. a second stopper; 103. a second air outlet; 104. a second seal; 11. a filter screen; 12. a side plate; 13. a partition board.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
As shown in fig. 1 to 5, the utility model provides a positive and negative pressure switching device for an operating room, which comprises a shell 1, wherein the shell 1 comprises a bottom plate 9 and two side plates 12 fixedly installed on the bottom plate 9, so that a U-shaped frame is formed by the bottom plate 9 and the side plates 12, two opposite openings of the U-shaped frame are respectively provided with a filter screen 11, the filter screen 11 is used for preventing inflow of a large amount of dust in indoor air and outdoor air, and a cover plate 2 is hinged at the other opening of the U-shaped frame, and the cover plate 2 is used for covering and sealing the opening, so that a hollow cavity is formed by the bottom plate 9, the two side plates 12, the filter screen 11 and the cover plate 2;
for convenience of explanation, the lower end position in fig. 1 is communicated with the interior of an operating room, the upper end position is communicated with the outside air, a plurality of groups of baffles 7 are arranged in the hollow cavity, the hollow cavity is divided into six installation cavities by the plurality of groups of baffles 7, as shown in fig. 2, the six installation cavities are respectively defined as a first installation cavity, a second installation cavity, a third installation cavity, a fourth installation cavity, a fifth installation cavity and a sixth installation cavity from bottom to top, and the first installation cavity, the second installation cavity, the third installation cavity, the fourth installation cavity, the fifth installation cavity and the sixth installation cavity are sequentially communicated;
the principle of positive and negative voltage switching in the present utility model will be described below, specifically:
the first installation cavity is positioned at one end close to the operating room, a first sealing opening 43 is arranged in the first installation cavity and close to the operating room, the first sealing opening 43 is used for communicating the first installation cavity with the operating room, meanwhile, a first airtight valve 4 is arranged in the first installation cavity, the first airtight valve 4 is used for opening or closing the first sealing opening 43, the first airtight valve 4 comprises a first motor 41 arranged on the shell 1 and a first stop block 42 fixedly arranged at the output end of the first motor 41, so that the first stop block 42 is suitable for rotating under the driving of the first motor 41 to open or close the first sealing opening 43 so as to prevent the pollution of outdoor air to indoor air when the positive-negative pressure switching equipment is not operated and to communicate the inside and outside of the operating room when the positive-negative pressure switching equipment is operated, and gas exchange is convenient;
an ultraviolet lamp 8 for sterilization is arranged in the second mounting cavity for irradiating and killing microorganisms in the air, a sealing plate 3 is arranged at the lower ends of the cover plate 2 at the upper ends of the first mounting cavity and the second mounting cavity, and the sealing plate 3 is used for preventing the light rays of the ultraviolet lamp 8 from affecting the human body;
the third installation cavity is internally provided with the first filtering part 5, the first filtering part 5 comprises a clamping groove 53 which is arranged on the shell 1, a filter element 52 is arranged in the clamping groove 53, the filter element 52 is a plasma filter, toxic and harmful gas in air is effectively decomposed, meanwhile, a flow passage of dust in the air is prevented, so that flowing dust is adsorbed in the filter element 52, the filter element 52 is matched with the clamping groove 53 by the clamping groove 53, the filter element 52 can be pulled out from the clamping groove 53 so as to clean the filter element 52, and the repeated use function of the filter element 52 is realized;
a fan 6 is arranged in the fourth installation cavity, and the fan 6 has two functions of air suction and air supply so as to conveniently pump air in the operating room or pump external air into the operating room, thereby realizing the positive and negative pressure switching of the operating room;
the fifth installation cavity is positioned at one end far away from the operating room, a second seal 104 is arranged in the position, far away from the operating room, of the fifth installation cavity, the second seal 104 is used for the fifth installation cavity to be communicated with the outside of the room, meanwhile, a second airtight valve 10 is arranged in the fifth installation cavity, the second airtight valve 10 is used for opening or closing the second seal 104, the second airtight valve 10 comprises a second motor 101 arranged on the shell 1, a second stop block 102 is fixedly arranged at the output end of the second motor 101, and thus the second stop block 102 is suitable for rotating under the driving of the second motor 101 so as to open or close the second seal 104, prevent the pollution of outdoor air to indoor air when the positive-negative pressure switching equipment is not operated, and communicate the inside and outside of the operating room when the positive-negative pressure switching equipment is operated, so as to facilitate gas exchange;
the sixth installation cavity is internally provided with a second filtering part 51, and the second filtering part 51 is arranged the same as the first filtering part 5 and is not described in detail;
in summary, when the positive-negative pressure switching device is not started, the first sealing valve 4 seals the first seal 43 to prevent outdoor air from flowing, and the second sealing valve 10 seals the second seal 104 to prevent outdoor air from flowing into the room;
when the air pressure in the operating room is low, pressurization treatment is required to reach a preset negative pressure value, hereinafter referred to as positive pressure treatment, when the positive and negative pressure switching equipment carries out positive pressure treatment on indoor air, the second sealing valve 10 is driven by the second motor 101 to open the second sealing 104, meanwhile, the first sealing valve 4 is driven by the first motor 41 to rotate, so that the first sealing 43 is in an open state, and thus outdoor air is communicated with indoor air, the outdoor air is led into the shell 1 through the fan 6 and is subjected to sterilization treatment through the second filtering part 51, the first filtering part 5 and the ultraviolet lamp 8, and the outdoor air is sucked into the operating room after being subjected to sterilization treatment, so that the air pressure in the operating room reaches the preset negative pressure value, and after reaching the preset negative pressure value, the second sealing valve 10 is driven by the second motor 101 to close the second sealing 104, and meanwhile, the outdoor air cannot flow into the operating room, so that the pressure in the operating room keeps the preset negative pressure value;
when the air pressure in the operating room is high, the pressure reduction treatment is required to reach a preset negative pressure value, hereinafter referred to as negative pressure treatment, when the negative pressure treatment is performed on the indoor air by the positive and negative pressure switching equipment, the first sealing valve 4 is driven by the first motor 41 to rotate so that the first sealing valve 43 is in an open state, meanwhile, the second sealing valve 10 is driven by the second motor 101 to open the second sealing 104, so that the outdoor air is communicated with the indoor air, the air in the operating room is led into the shell 1 through the fan 6, the sterilization treatment is performed through the ultraviolet lamp 8, the first filtering part 5 and the second filtering part 51, the air in the operating room is discharged outside after the sterilization treatment, and when the air pressure in the operating room reaches the preset negative pressure value, the second sealing valve 10 is driven by the second motor 101 to close the second sealing 104, and meanwhile, the outdoor air cannot flow into the operating room, so that the pressure in the operating room keeps the negative pressure;
in order to prevent the air pressure in the operating room from changing during the operation and bacteria from growing continuously during the operation, which causes unnecessary problems during the operation, it is necessary to provide a reflux mechanism for filtering the air in the operating room, in particular:
the reflux mechanism comprises a baffle plate 13 arranged in the hollow cavity, wherein the baffle plate 13 is positioned at the bottom direction of the U-shaped frame and is positioned at the inner side of the bottom plate 9, the baffle plate 13 and the bottom plate 9 form a reflux chamber, the reflux chamber is used for reintroducing indoor air flow into an operating room to realize self circulation, and the part of the principle is described below;
a first air outlet 44 is arranged on the bottom plate 9 below the partition plate 13, and the first air outlet 44 is communicated with the operating room, so that air flow can flow between the reflux cavity and the operating room;
a second air outlet 103 penetrating through is arranged at the lower end of the second stop block 102 on the partition plate 13, the second air outlet 103 is communicated with the backflow cavity, and the second air outlet 103 can be opened or closed under the control of the second sealing valve 10;
when the reflux mechanism works, the first motor 41 drives the first stop block 42 to rotate, so that the first seal 43 is in an open state, meanwhile, the second motor 101 drives the second stop block 102 to rotate, the second seal 104 is in a closed state, the second air outlet 103 is in an open state, under the drainage of the fan 6, air in an operating room flows into the shell 1 through the first seal 43, the ultraviolet lamp 8 and the first filter part 5 sterilize the air in the operating room, and thus the filtered air in the operating room flows into a reflux cavity between the second air outlet 103 and the partition plate 13 and flows back into the operating room from the reflux cavity, so that self circulation is formed.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a positive negative pressure switching equipment of operating room which characterized in that: comprising the following steps:
the device comprises a shell (1), wherein a bottom plate (9) is arranged in the shell (1), a partition plate (13) is arranged on the inner side of the bottom plate (9), and the partition plate (13) and the bottom plate (9) form a backflow cavity;
a first seal (43), the first seal (43) being mounted in close proximity to the operating room, the first seal (43) being adapted for air flow into the housing (1) in the operating room;
a first sealing valve (4), wherein the first sealing valve (4) is arranged in the shell (1), and the first sealing valve (4) is suitable for opening or closing the first seal (43);
a second seal (104), the second seal (104) being mounted at a location remote from the operating room;
a second air outlet (103), wherein the second air outlet (103) penetrates through the partition board (13);
a second sealing valve (10), wherein the second sealing valve (10) is arranged in the shell (1), and the second sealing valve (10) is suitable for opening or closing the second seal (104) and the second air outlet (103);
the first air outlet (44) penetrates through the bottom plate (9) and is communicated with the backflow cavity and the operating room;
a fan (6), the fan (6) being mounted in the housing (1);
wherein: the positive and negative pressure switching equipment is suitable for switching between a positive pressure state, a negative pressure state and a reflux state under the cooperation of the fan (6), the first sealing valve (4) and the second sealing valve (10).
2. The operating room positive and negative pressure switching apparatus according to claim 1, wherein: the first sealing valve (4) comprises a first motor (41) arranged on the shell (1) and a first stop block (42) fixedly arranged on the output end of the first motor (41), so that the first stop block (42) is suitable for rotating under the driving of the first motor (41) to open or close the first sealing opening (43).
3. The operating room positive and negative pressure switching apparatus according to claim 1, wherein: the second sealing valve (10) comprises a second motor (101) arranged on the shell (1) and a second stop block (102) fixedly arranged on the output end of the second motor (101), so that the second stop block (102) is suitable for rotating under the driving of the second motor (101) to open or close the second air outlet (103).
4. The operating room positive and negative pressure switching apparatus according to claim 1, wherein: a first filtering part (5) is arranged in the shell (1), the first filtering part (5) comprises a clamping groove (53) arranged on the shell (1), and a filter element (52) is arranged in the clamping groove (53);
the filter element (52) is matched with the clamping groove (53) in a clamping groove mode, and the filter element (52) is suitable for being pulled out of the clamping groove (53) so as to clean the filter element (52).
5. The operating room positive and negative pressure switching apparatus according to claim 4, wherein: an ultraviolet lamp (8) for sterilization is arranged in the shell (1).
6. The operating room positive and negative pressure switching apparatus according to claim 4, wherein: a second filtering part (51) is arranged in the shell (1), and the second filtering part (51) is arranged the same as the first filtering part (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320621429.7U CN219572167U (en) | 2023-03-27 | 2023-03-27 | Positive and negative pressure switching equipment for operating room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320621429.7U CN219572167U (en) | 2023-03-27 | 2023-03-27 | Positive and negative pressure switching equipment for operating room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219572167U true CN219572167U (en) | 2023-08-22 |
Family
ID=87659984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320621429.7U Active CN219572167U (en) | 2023-03-27 | 2023-03-27 | Positive and negative pressure switching equipment for operating room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219572167U (en) |
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2023
- 2023-03-27 CN CN202320621429.7U patent/CN219572167U/en active Active
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