CN214909352U - Positive and negative pressure ambulance - Google Patents
Positive and negative pressure ambulance Download PDFInfo
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- CN214909352U CN214909352U CN202120318462.3U CN202120318462U CN214909352U CN 214909352 U CN214909352 U CN 214909352U CN 202120318462 U CN202120318462 U CN 202120318462U CN 214909352 U CN214909352 U CN 214909352U
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Abstract
The utility model discloses a positive and negative pressure ambulance, which comprises an ambulance body, a positive pressure mechanism, a negative pressure mechanism and a switching mechanism; the ambulance body is provided with a cockpit and an ambulance cabin, and the positive pressure mechanism and the negative pressure mechanism are both arranged on one side, close to the cockpit, in the ambulance cabin; the negative pressure mechanism is used for keeping the rescue capsule in a negative pressure environment and discharging gas in the rescue capsule after disinfection and sterilization; the positive pressure mechanism is used for sending the outside air into the cockpit and the rescue capsule after disinfection and sterilization so as to keep the cockpit and the rescue capsule in a positive pressure environment. When the negative pressure mechanism works, the gas in the rescue cabin can be discharged after disinfection and sterilization, so that the rescue cabin is kept in a negative pressure environment, and the pollution gas in the rescue cabin can be prevented from leaking outside the vehicle; when the positive pressure mechanism works, the negative pressure mechanism stops working, so that the cockpit and the rescue capsule are kept in a positive pressure environment, and the polluted gas outside the automobile is effectively prevented from entering the automobile.
Description
Technical Field
The utility model relates to an ambulance technical field, concretely relates to positive negative pressure ambulance.
Background
With the increasing level of public health construction, especially in the process of prevention, control and treatment of epidemic diseases, the transportation requirements of more professional, more advanced and more reliable epidemic diseases are provided for the transportation and the transportation of medical observers, suspected patients and diagnosticians. At present, a common ambulance only has normal vehicle functions, including an air conditioning cooling and heating system, natural air pressure and the like, and people in a cabin can breathe normally. However, when a vehicle enters a virus-contaminated area, contaminated gas easily enters the cabin through a door slot of the vehicle and the like, causing contamination to personnel in the cabin; or when virus infection patients are transported in the cabin, the gas exhaled by the virus infection patients can leak outside the vehicle, and the environment outside the vehicle is polluted.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a positive and negative pressure ambulance, which can effectively prevent the polluted gas outside the vehicle from entering the vehicle; meanwhile, the pollution gas in the vehicle can be prevented from leaking outside the vehicle, and the environment outside the vehicle is protected.
The utility model provides a positive and negative pressure ambulance, which comprises an ambulance body, a positive pressure mechanism, a negative pressure mechanism and a switching mechanism; the ambulance body is provided with a cockpit and an ambulance cabin, and the positive pressure mechanism and the negative pressure mechanism are both arranged on one side, close to the cockpit, in the ambulance cabin; the negative pressure mechanism is used for keeping the rescue capsule in a negative pressure environment and discharging gas in the rescue capsule after disinfection and sterilization; the positive pressure mechanism is used for sending the outside air into the cockpit and the rescue capsule after disinfection and sterilization so as to keep the cockpit and the rescue capsule in a positive pressure environment;
the switching mechanism is arranged in the rescue cabin and comprises a switching sleeve, a first end annular plate, a second end annular plate, a first transition annular plate, a second transition annular plate, a first connecting pipe, a second connecting pipe, a third connecting pipe, an execution cylinder, a push-pull rod, a first cover plate, a second cover plate, a third cover plate and a fourth cover plate, wherein the first end annular plate and the second end annular plate are coaxially connected with the two ends of the switching sleeve respectively, and the edge of the first transition annular plate and the edge of the second transition annular plate are coaxially and hermetically connected with the inner wall of the switching sleeve; the switching sleeve is provided with a first connecting port, a second connecting port and a third connecting port, a first connecting pipe is connected with the first connecting port, a second connecting pipe is connected with the second connecting port, the third connecting pipe is connected with the third connecting port, the first connecting pipe is positioned between the first end annular plate and the first transition annular plate, the second connecting pipe is positioned between the second end annular plate and the second transition annular plate, and the third connecting pipe is positioned between the first transition annular plate and the second transition annular plate; the switching sleeve and the execution cylinder are both arranged in the rescue cabin, one end of the push-pull rod is connected with a piston rod of the execution cylinder, and the other end of the push-pull rod sequentially penetrates through the second end annular plate, the second transition annular plate and the first transition annular plate to protrude out of the first end annular plate; the first cover plate, the second cover plate, the third cover plate and the fourth cover plate are all connected with the push-pull rod, the switching sleeve is positioned between the first cover plate and the fourth cover plate, the second cover plate is positioned between the first end annular plate and the first transition annular plate, and the third cover plate is positioned between the second end annular plate and the second transition annular plate;
when the first connecting pipe is communicated with the third connecting pipe, the second cover plate is in plugging fit with the first end annular plate, the third cover plate is in plugging fit with the second transition annular plate, and the fourth cover plate is in plugging fit with the second end annular plate; when the second connecting pipe is communicated with the third connecting pipe, the third cover plate is in plugging fit with the second end annular plate, the second cover plate is in plugging fit with the first transition annular plate, and the first cover plate is in plugging fit with the first end annular plate;
be equipped with the air exit that runs through the ambulance body on the lateral wall of rescue capsule, the air exit passes through the connecting tube and is connected with the third connecting pipe, and first connecting pipe passes through the connecting tube to be connected with negative pressure mechanism's the end of airing exhaust, and the second connecting pipe passes through the connecting tube to be connected with positive pressure mechanism's air inlet end.
Preferably, the negative pressure mechanism comprises a negative pressure cabinet body, a first panel, a first disinfection and sterilization mechanism and a negative pressure fan, the negative pressure cabinet body is arranged on one side, close to the cockpit, of the rescue capsule, the negative pressure cabinet body is provided with a first mounting groove and a first mounting cavity communicated with the first mounting groove, the first disinfection and sterilization mechanism is connected with the inner wall of the first mounting groove, the negative pressure fan is arranged in the first mounting cavity, one side of the negative pressure cabinet body is provided with a first exhaust pipe communicated with the first mounting cavity, the exhaust end of the negative pressure fan is connected with the corresponding end of the first exhaust pipe through a connecting pipeline, and the first connecting pipe is connected with the first exhaust pipe through a connecting pipeline; the first panel is connected with the terminal surface by first mounting groove of the negative pressure cabinet body, and first panel is equipped with the first air intake that corresponds with first mounting groove, and first air intake department of first panel is equipped with first connecting plate, is equipped with a plurality of ventilation holes that are vertically and horizontally the equipartition on the first connecting plate.
Preferably, the positive pressure mechanism comprises a positive pressure cabinet body, a positive pressure fan, a second panel and a second disinfection and sterilization mechanism, the positive pressure cabinet body is arranged on one side, close to the cockpit, of the rescue cabin, the positive pressure cabinet body is provided with a second mounting groove and a second mounting cavity communicated with the second mounting groove, the second disinfection and sterilization mechanism is connected with the inner wall of the second mounting groove, the positive pressure fan is arranged in the second mounting cavity, one side of the positive pressure cabinet body is provided with a second exhaust pipe and a third exhaust pipe communicated with the second mounting cavity, and the exhaust end of the positive pressure fan is respectively connected with the corresponding ends of the second exhaust pipe and the third exhaust pipe through connecting pipelines; the second panel is connected with the end face, close to the second mounting groove, of the negative pressure cabinet body, the second panel is provided with a second air inlet corresponding to the second mounting groove, and the second connecting pipe is connected with the second air inlet through a connecting pipeline.
Preferably, a first fresh air indoor unit and a second fresh air indoor unit for sending fresh air are respectively arranged in the cockpit and the rescue capsule, the first fresh air indoor unit is connected with the second exhaust pipe, and the second fresh air indoor unit is connected with the third exhaust pipe.
The utility model discloses following beneficial effect has:
when the negative pressure mechanism in the technical scheme works, the gas in the rescue capsule can be discharged after disinfection and sterilization, so that the rescue capsule is kept in a negative pressure environment, and at the moment, the air around the ambulance body only enters the rescue capsule through the peripheral gaps of the rescue capsule, so that the polluted gas in the rescue capsule can be prevented from leaking outside the vehicle, and the environment outside the vehicle is protected; when the positive pressure mechanism works, the negative pressure mechanism stops working, the switching mechanism performs switching action to enable the positive pressure mechanism to be communicated with the air outlet, and external air is sent into the cockpit and the rescue capsule after being disinfected and sterilized by the positive pressure mechanism, so that the cockpit and the rescue capsule are kept in a positive pressure environment, and therefore polluted air outside the automobile can be effectively prevented from entering the automobile.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a layout diagram of the positive pressure mechanism and the negative pressure mechanism on the ambulance body according to an embodiment of the present invention;
fig. 3 is a schematic structural view illustrating arrangement of the positive pressure mechanism and the negative pressure mechanism in an embodiment of the present invention;
fig. 4 is a schematic structural view of a positive pressure mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a negative pressure mechanism according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a switching mechanism according to an embodiment of the present invention.
Reference numerals:
1-ambulance body, 101-cockpit, 102-ambulance cabin, 103-air outlet, 2-positive pressure mechanism, 201-positive pressure cabinet, 202-positive pressure fan, 203-second panel, 204-second disinfection and sterilization mechanism, 205-second air inlet, 206-first fresh air indoor unit, 207-second fresh air indoor unit, 208-second exhaust pipe, 209-third exhaust pipe, 3-negative pressure mechanism, 301-negative pressure cabinet, 302-first panel, 303-first disinfection and sterilization mechanism, 304-negative pressure fan, 305-first connecting plate, 306-vent, 307-first exhaust pipe, 4-switching mechanism, 401-switching sleeve, 402-first end annular plate, 403-second end annular plate, 404-first transition annular plate, 405-a second transition ring plate, 406-a first connection pipe, 407-a second connection pipe, 408-a third connection pipe, 409-an actuating cylinder, 410-a push-pull rod, 411-a first cover plate, 412-a second cover plate, 413-a third cover plate, 414-a fourth cover plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 6, the positive/negative pressure ambulance provided in the present embodiment includes an ambulance body 1, a positive pressure mechanism 2, a negative pressure mechanism 3, and a switching mechanism 4; the ambulance body 1 is provided with a cockpit 101 and an ambulance cabin 102, and the positive pressure mechanism 2 and the negative pressure mechanism 3 are both arranged at one side of the ambulance cabin 102 close to the cockpit. The negative pressure mechanism 3 is used to maintain the rescue capsule 102 in a negative pressure environment and exhaust the gas in the rescue capsule 102 after sterilization. The positive pressure mechanism 2 is used to send the sterilized outside air into the cabin 101 and the rescue capsule 102, so that the cabin 101 and the rescue capsule 102 are maintained in a positive pressure environment.
The switching mechanism 4 is installed in the rescue capsule 102, the switching mechanism 4 includes a switching sleeve 401, a first end annular plate 402, a second end annular plate 403, a first transition annular plate 404, a second transition annular plate 405, a first connecting pipe 406, a second connecting pipe 407, a third connecting pipe 408, an actuating cylinder 409, a push-pull rod 410, a first cover plate 411, a second cover plate 412, a third cover plate 413 and a fourth cover plate 414, the first end annular plate 402 and the second end annular plate 403 are coaxially connected with two ends of the switching sleeve 401, respectively, and an edge of the first transition annular plate 404 and an edge of the second transition annular plate 405 are coaxially and hermetically connected with an inner wall of the switching sleeve 401. The switching sleeve 401 is provided with a first connection port, a second connection port and a third connection port, the first connection pipe 406 is connected with the first connection port, the second connection pipe 407 is connected with the second connection port, the third connection pipe 408 is connected with the third connection port, the first connection pipe 406 is located between the first end annular plate 402 and the first transition annular plate 404, the second connection pipe 407 is located between the second end annular plate 403 and the second transition annular plate 405, and the third connection pipe 408 is located between the first transition annular plate 404 and the second transition annular plate 405.
The switching sleeve 401 and the actuating cylinder 409 are both arranged in the rescue capsule 102, one end of the push-pull rod 410 is connected with a piston rod of the actuating cylinder 409, and the other end of the push-pull rod 410 sequentially penetrates through the second end annular plate 403, the second transition annular plate 405 and the first transition annular plate 404 to protrude out of the first end annular plate 402; a first cover plate 411, a second cover plate 412, a third cover plate 413 and a fourth cover plate 414 are all connected to the push-pull rod 410, the shift sleeve 401 is located between the first cover plate 411 and the fourth cover plate 414, the second cover plate 412 is located between the first end annular plate 402 and the first transition annular plate 404, and the third cover plate 413 is located between the second end annular plate 405 and the second transition annular plate 403.
When the first connecting pipe 406 and the third connecting pipe 408 are communicated, the second cover plate 412 is in sealing fit with the first end annular plate 402, the third cover plate 413 is in sealing fit with the second transition annular plate 404, and the fourth cover plate 414 is in sealing fit with the second end annular plate 402; when the second connection pipe 407 and the third connection pipe 408 are communicated, the third cover plate 413 is sealed and attached to the second end annular plate 402, the second cover plate 412 is sealed and attached to the first transition annular plate 404, and the first cover plate 411 is sealed and attached to the first end annular plate 402.
In addition, the sidewall of the ambulance cabin 102 is provided with an air outlet 103 penetrating through the ambulance body, the air outlet 103 is connected with the third connecting pipe 408 through a connecting pipe, the first connecting pipe 406 is connected with the air exhaust end of the negative pressure mechanism 3 through a connecting pipe, and the second connecting pipe 407 is connected with the air intake end of the positive pressure mechanism 2 through a connecting pipe.
When the negative pressure mechanism 3 of the technical scheme works, the gas in the ambulance cabin 102 can be discharged after being disinfected and sterilized, so that the ambulance cabin 102 is kept in a negative pressure environment, at the moment, the air around the ambulance body 1 only enters the ambulance cabin 102 through the gaps around the ambulance cabin 102, the polluted gas in the ambulance cabin 102 can be prevented from leaking out of the vehicle, and the environment outside the vehicle is protected; when the positive pressure mechanism 2 works, the negative pressure mechanism 3 stops working, the switching mechanism 4 performs switching action to enable the positive pressure mechanism 2 to be communicated with the air outlet 103, and external air is sent into the cockpit 101 and the rescue capsule 102 after being disinfected and sterilized by the positive pressure mechanism 2, so that the cockpit 101 and the rescue capsule 102 are kept in a positive pressure environment, and therefore polluted air outside the vehicle can be effectively prevented from entering the vehicle.
In addition, the switching mechanism 4 can be switched between the communication between the first connecting pipe 406 and the third connecting pipe 408 or the communication between the second connecting pipe 407 and the third connecting pipe 408 by the air cylinder according to the operation of the positive pressure mechanism 2 or the negative pressure mechanism 3, and the whole process is quick and convenient; moreover, the positive pressure mechanism 2 and the negative pressure mechanism 3 share a section of the same connecting pipeline and the same air outlet 103 through the switching mechanism 4, so that the positive pressure mechanism 2 and the negative pressure mechanism 3 are prevented from being connected with the air outlet through one connecting pipeline respectively, and the arrangement of the section of the connecting pipeline is simplified; meanwhile, the switching mechanism 4 effectively avoids the phenomenon of gas channeling when the positive pressure mechanism 2 or the negative pressure mechanism 3 works.
The negative pressure mechanism 3 comprises a negative pressure cabinet body 301, a first panel 302, a first disinfection and sterilization mechanism 303 and a negative pressure fan 304, the negative pressure cabinet body 301 is installed on one side, close to the cockpit, of the rescue cabin, the negative pressure cabinet body 301 is provided with a first installation groove and a first installation cavity communicated with the first installation groove, the first disinfection and sterilization mechanism 303 is connected with the inner wall of the first installation groove, the negative pressure fan 304 is installed in the first installation cavity, one side of the negative pressure cabinet body 301 is provided with a first exhaust pipe 307 communicated with the first installation cavity, the exhaust end of the negative pressure fan 304 is connected with the corresponding end of the first exhaust pipe 307 through a connecting pipeline, and the first connecting pipe 406 is connected with the first exhaust pipe 307 through a connecting pipeline; first panel 302 and the terminal surface that leans on first mounting groove of the negative pressure cabinet body 301 are connected, and first panel 302 is equipped with the first air intake that corresponds with first mounting groove, and first air intake department of first panel 302 is equipped with first connecting plate 305, is equipped with a plurality of ventilation holes 306 that are vertically and horizontally the equipartition on first connecting plate 305. When the negative pressure fan 304 works, the air in the rescue capsule enters the first disinfection and sterilization mechanism 303 through the vent hole 306 of the first connection plate 305 for disinfection and sterilization, and then is exhausted through the first exhaust pipe 307 and the exhaust port 103, so that the pollution of the polluted air in the rescue capsule to the outside of the vehicle is avoided. In this embodiment, the first disinfection and sterilization mechanism 303 is sequentially stacked with a first ultraviolet disinfection lamp, a first photocatalyst plate, a first filter screen, a second photocatalyst plate, and a second ultraviolet disinfection lamp along the gas flow direction.
The positive pressure mechanism 2 comprises a positive pressure cabinet body 201, a positive pressure fan 202, a second panel 203 and a second disinfection and sterilization mechanism 204, the positive pressure cabinet body 201 is installed on one side, close to the cockpit, of the rescue capsule, the positive pressure cabinet body 201 is provided with a second installation groove and a second installation cavity communicated with the second installation groove, the second disinfection and sterilization mechanism 204 is connected with the inner wall of the second installation groove, the positive pressure fan 202 is installed in the second installation cavity, one side of the positive pressure cabinet body 201 is provided with a second exhaust pipe 208 and a third exhaust pipe 209 communicated with the second installation cavity, and the exhaust end of the positive pressure fan 202 is connected with the corresponding ends of the second exhaust pipe 208 and the third exhaust pipe 209 through connecting pipelines respectively; the second panel 203 is connected to an end surface of the negative pressure cabinet 201 close to the second mounting groove, the second panel 203 is provided with a second air inlet 205 corresponding to the second mounting groove, and the second connecting pipe 407 is connected to the second air inlet 205 through a connecting pipe. In this embodiment, the second disinfection and sterilization mechanism 204 is sequentially stacked with a first ultraviolet disinfection lamp, a first photocatalyst plate, a first filter screen, a second photocatalyst plate and a second ultraviolet disinfection lamp along the gas flow direction.
The cockpit 101 and the rescue capsule 102 are respectively provided with a first fresh air indoor unit 206 and a second fresh air indoor unit 207 for sending fresh air, the first fresh air indoor unit 206 is connected with a second exhaust pipe 208, and the second fresh air indoor unit 207 is connected with a third exhaust pipe 209. The positive pressure fan 202 is convenient for sending the sterilized outside air into the cockpit 101 and the rescue capsule 102 through the first fresh air indoor unit 206 and the second fresh air indoor unit 207 respectively.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (4)
1. A positive and negative pressure ambulance is characterized in that: comprises an ambulance body, a positive pressure mechanism, a negative pressure mechanism and a switching mechanism;
the ambulance body is provided with a cockpit and an ambulance cabin, and the positive pressure mechanism and the negative pressure mechanism are both arranged on one side, close to the cockpit, in the ambulance cabin; the negative pressure mechanism is used for keeping the rescue capsule in a negative pressure environment and discharging gas in the rescue capsule after disinfection and sterilization; the positive pressure mechanism is used for sending the outside air into the cockpit and the rescue capsule after disinfection and sterilization so as to keep the cockpit and the rescue capsule in a positive pressure environment;
the switching mechanism is arranged in the rescue cabin and comprises a switching sleeve, a first end annular plate, a second end annular plate, a first transition annular plate, a second transition annular plate, a first connecting pipe, a second connecting pipe, a third connecting pipe, an execution cylinder, a push-pull rod, a first cover plate, a second cover plate, a third cover plate and a fourth cover plate, wherein the first end annular plate and the second end annular plate are coaxially connected with the two ends of the switching sleeve respectively, and the edge of the first transition annular plate and the edge of the second transition annular plate are coaxially and hermetically connected with the inner wall of the switching sleeve; the switching sleeve is provided with a first connecting port, a second connecting port and a third connecting port, a first connecting pipe is connected with the first connecting port, a second connecting pipe is connected with the second connecting port, the third connecting pipe is connected with the third connecting port, the first connecting pipe is positioned between the first end annular plate and the first transition annular plate, the second connecting pipe is positioned between the second end annular plate and the second transition annular plate, and the third connecting pipe is positioned between the first transition annular plate and the second transition annular plate; the switching sleeve and the execution cylinder are both arranged in the rescue cabin, one end of the push-pull rod is connected with a piston rod of the execution cylinder, and the other end of the push-pull rod sequentially penetrates through the second end annular plate, the second transition annular plate and the first transition annular plate to protrude out of the first end annular plate; the first cover plate, the second cover plate, the third cover plate and the fourth cover plate are all connected with the push-pull rod, the switching sleeve is positioned between the first cover plate and the fourth cover plate, the second cover plate is positioned between the first end annular plate and the first transition annular plate, and the third cover plate is positioned between the second end annular plate and the second transition annular plate;
when the first connecting pipe is communicated with the third connecting pipe, the second cover plate is in plugging fit with the first end annular plate, the third cover plate is in plugging fit with the second transition annular plate, and the fourth cover plate is in plugging fit with the second end annular plate; when the second connecting pipe is communicated with the third connecting pipe, the third cover plate is in plugging fit with the second end annular plate, the second cover plate is in plugging fit with the first transition annular plate, and the first cover plate is in plugging fit with the first end annular plate;
be equipped with the air exit that runs through the ambulance body on the lateral wall of rescue capsule, the air exit passes through the connecting tube and is connected with the third connecting pipe, and first connecting pipe passes through the connecting tube to be connected with negative pressure mechanism's the end of airing exhaust, and the second connecting pipe passes through the connecting tube to be connected with positive pressure mechanism's air inlet end.
2. The positive and negative pressure ambulance as claimed in claim 1, wherein:
the negative pressure mechanism comprises a negative pressure cabinet body, a first panel, a first disinfection and sterilization mechanism and a negative pressure fan, the negative pressure cabinet body is arranged on one side, close to a cockpit, of the rescue cabin, the negative pressure cabinet body is provided with a first mounting groove and a first mounting cavity communicated with the first mounting groove, the first disinfection and sterilization mechanism is connected with the inner wall of the first mounting groove, the negative pressure fan is arranged in the first mounting cavity, one side of the negative pressure cabinet body is provided with a first exhaust pipe communicated with the first mounting cavity, the exhaust end of the negative pressure fan is connected with the corresponding end of the first exhaust pipe through a connecting pipeline, and a first connecting pipe is connected with the first exhaust pipe through a connecting pipeline; the first panel is connected with the terminal surface by first mounting groove of the negative pressure cabinet body, and first panel is equipped with the first air intake that corresponds with first mounting groove, and first air intake department of first panel is equipped with first connecting plate, is equipped with a plurality of ventilation holes that are vertically and horizontally the equipartition on the first connecting plate.
3. The positive and negative pressure ambulance as claimed in claim 1, wherein:
the positive pressure mechanism comprises a positive pressure cabinet body, a positive pressure fan, a second panel and a second disinfection and sterilization mechanism, the positive pressure cabinet body is arranged on one side, close to the cockpit, of the rescue capsule, the positive pressure cabinet body is provided with a second mounting groove and a second mounting cavity communicated with the second mounting groove, the second disinfection and sterilization mechanism is connected with the inner wall of the second mounting groove, the positive pressure fan is arranged in the second mounting cavity, one side of the positive pressure cabinet body is provided with a second exhaust pipe and a third exhaust pipe communicated with the second mounting cavity, and the air exhaust end of the positive pressure fan is respectively connected with the corresponding ends of the second exhaust pipe and the third exhaust pipe through connecting pipelines; the second panel is connected with the end face, close to the second mounting groove, of the negative pressure cabinet body, the second panel is provided with a second air inlet corresponding to the second mounting groove, and the second connecting pipe is connected with the second air inlet through a connecting pipeline.
4. The positive and negative pressure ambulance as claimed in claim 3, wherein:
the first fresh air indoor unit and the second fresh air indoor unit which are used for feeding fresh air are arranged in the cockpit and the rescue capsule respectively, the first fresh air indoor unit is connected with the second exhaust pipe, and the second fresh air indoor unit is connected with the third exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120318462.3U CN214909352U (en) | 2021-02-04 | 2021-02-04 | Positive and negative pressure ambulance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120318462.3U CN214909352U (en) | 2021-02-04 | 2021-02-04 | Positive and negative pressure ambulance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214909352U true CN214909352U (en) | 2021-11-30 |
Family
ID=79119491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120318462.3U Active CN214909352U (en) | 2021-02-04 | 2021-02-04 | Positive and negative pressure ambulance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214909352U (en) |
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2021
- 2021-02-04 CN CN202120318462.3U patent/CN214909352U/en active Active
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