CN114404174A - Air cushion bed capable of quickly relieving pressure and control method thereof - Google Patents
Air cushion bed capable of quickly relieving pressure and control method thereof Download PDFInfo
- Publication number
- CN114404174A CN114404174A CN202111592017.7A CN202111592017A CN114404174A CN 114404174 A CN114404174 A CN 114404174A CN 202111592017 A CN202111592017 A CN 202111592017A CN 114404174 A CN114404174 A CN 114404174A
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- China
- Prior art keywords
- way valve
- air
- port
- air cushion
- air bag
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
- A61G7/05769—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers
- A61G7/05776—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers with at least two groups of alternately inflated chambers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/001—Beds specially adapted for nursing; Devices for lifting patients or disabled persons with means for turning-over the patient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
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- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The invention provides a rapid pressure relief air cushion bed and a control method thereof, and relates to the technical field of air cushion beds. The inflatable air bag switching device comprises an inflator pump, a reversing assembly and an air bag which are connected in sequence, wherein the reversing assembly is used for selectively switching the communication mode of the inflator pump and the air bag, and the communication mode comprises that the reversing assembly, the inflator pump and the air bag are in gas communication in sequence or the air bag, the reversing assembly and the inflator pump are in gas communication in sequence. The rapid deflation and pressure relief of the air cushion bed can be realized through the invention, so that better conditions are created for medical personnel to do external chest compression and more rescue time is strived for; and simultaneously, the labor intensity of medical staff for turning over the patient is reduced. Under the condition of not increasing the production cost, the function of the traditional air cushion bed is further expanded, and the air cushion bed has high practicability.
Description
Technical Field
The invention relates to the technical field of air cushion beds, in particular to an air cushion bed capable of quickly relieving pressure and a control method thereof.
Background
At present, medical institutions in hospitals and nursing homes widely use air cushion beds, and the skin can be alternately contacted with the air cushions by alternately inflating and deflating the two air cushions, so that pressure sores are prevented, and meanwhile, the air cushion bed is softer and more comfortable than a common mattress. Most of the patients who use the air cushion bed are old, weak or critically ill, the patients are often unstable, the risk of sudden cardiac arrest is obviously higher than that of other people, and once sudden cardiac arrest occurs, chest compression needs to be performed at the first time, and the chest compression is the last line of defense for rescuing the patients. Chest compression requires that a patient must lie on a hard and flat plane such as the ground, a hard board bed and the like, an air cushion bed is too soft and uneven, the chest compression efficiency is seriously affected, and even serious injuries such as sternum fracture, rib fracture and the like can be caused. There are two current solutions: 1. the external chest pressing plate needs to be placed under the back of a patient, and because the patient is heavy, a plurality of medical workers are needed to complete the operation, so that the labor intensity of the medical workers is increased; 2. the air cushion bed is deflated, but the deflation takes longer time, and the rescue time is seriously delayed.
When a user is in a sudden cardiac arrest, the conventional air cushion bed has the problems of seriously influencing the rescue effect, delaying the rescue time and even possibly causing unnecessary serious injury to the user. In view of this, the inventor provides a rapid pressure relief air cushion bed and a control method thereof after intensive research.
Disclosure of Invention
The invention aims to provide a rapid pressure relief air cushion bed, which can realize rapid air relief of the air cushion bed, create better conditions for medical personnel to do external chest compression and strive for more rescue time; and simultaneously, the labor intensity of medical staff for turning over the patient is reduced.
In a second aspect, the invention aims to provide a control method of the rapid pressure relief air cushion bed, by which the intellectualization of inflation and deflation of the rapid pressure relief air cushion bed can be realized, and the operation is more convenient.
The embodiment of the invention is realized by the following steps:
in a first aspect, the present embodiment provides a rapid pressure relief air cushion bed, which includes an inflator pump, a reversing assembly and an air bag, which are connected in sequence, wherein the reversing assembly is configured to selectively switch a communication manner between the inflator pump and the air bag, and the communication manner includes sequential gas communication between the reversing assembly, the inflator pump and the air bag or sequential gas communication between the air bag, the reversing assembly and the inflator pump.
In some embodiments of the present invention, the reversing assembly includes a two-position four-way valve and a controller connected to the two-position four-way valve, a T port of the two-position four-way valve is connected to the airbag, an a port of the two-position four-way valve is connected to an air inlet of the inflator, a B port of the two-position four-way valve is connected to an air outlet of the inflator, a P port of the two-position four-way valve is connected to the outside, and the controller is connected to the inflator.
In some embodiments of the present invention, the air conditioner further comprises an adjusting valve for adjusting the air volume, wherein the adjusting valve is disposed between the two-position four-way valve and the airbag and connected to the controller.
In some embodiments of the present invention, the controller further comprises an audible and visual alarm connected with the controller.
In some embodiments of the present invention, the airbag further includes an air leakage alarm and a pressure sensor disposed in the airbag, and the air leakage alarm and the pressure sensor are connected through the controller.
In some embodiments of the invention, the air bag further comprises a bed sheet and a connecting piece, wherein the bed sheet is detachably connected with the air bag through the connecting piece.
In some embodiments of the present invention, the two sets of connecting members are symmetrically disposed on the airbag respectively.
In some embodiments of the present invention, the connecting member comprises a zipper, a hook and loop fastener, or a hidden button.
In some embodiments of the present invention, the bed frame for mounting the air bag further comprises a bed frame, the bed frame comprises a bed plate and a support frame, and the bed plate comprises an inclined part and a horizontal part.
In a second aspect, the present embodiment provides a method for controlling a rapid pressure relief air cushion bed, including:
when the inflator receives a starting signal sent by the controller, the inflator starts to work;
when the two-position four-way valve receives an inflation signal sent by the controller, the two-position four-way valve is in a working state, and gas passes through a port P of the two-position four-way valve, a port A of the two-position four-way valve, an inflator pump, a port B of the two-position four-way valve, a port T of the two-position four-way valve, a regulating valve and an air bag in sequence to complete inflation;
when the two-position four-way valve receives an air release signal sent by the controller, the two-position four-way valve is in an emergency state, and air sequentially passes through the air bag, the regulating valve, the T port of the two-position four-way valve, the A port of the two-position four-way valve, the inflator pump, the B port of the two-position four-way valve and the P port of the two-position four-way valve to release air.
Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:
in a first aspect, an embodiment of the present application provides a rapid pressure relief air cushion bed, which includes an inflator pump, a reversing assembly and an air bag, which are connected in sequence, wherein the reversing assembly is configured to selectively switch a communication manner between the inflator pump and the air bag, and the communication manner includes sequential gas communication between the reversing assembly, the inflator pump and the air bag or sequential gas communication between the air bag, the reversing assembly and the inflator pump. The free switching between the inflation passage and the deflation passage is realized through the reversing assembly, and the air inflation pump has different functions in the inflation passage or the deflation passage respectively, so that the rapid inflation or rapid deflation and pressure relief of the air cushion bed are realized, and better conditions and more rescue time are created for the medical staff to do chest compression; in addition, the labor intensity of medical staff for turning over the patient is reduced.
In a second aspect, an embodiment of the present application provides a control method for a rapid pressure relief air cushion bed:
when the inflator receives a starting signal sent by the controller, the inflator starts to work;
when the two-position four-way valve receives an inflation signal sent by the controller, the two-position four-way valve is in a working state, and gas passes through a port P of the two-position four-way valve, a port A of the two-position four-way valve, an inflator pump, a port B of the two-position four-way valve, a port T of the two-position four-way valve, a regulating valve and an air bag in sequence to complete inflation;
when the two-position four-way valve receives an air release signal sent by the controller, the two-position four-way valve is in an emergency state, and air sequentially passes through the air bag, the regulating valve, the T port of the two-position four-way valve, the A port of the two-position four-way valve, the inflator pump, the B port of the two-position four-way valve and the P port of the two-position four-way valve to release air.
When in actual use, the controller realizes circuit control on parts such as the two-position four-way valve, the regulating valve, the pressure sensor, the air leakage alarm, the inflator pump and the like, thereby greatly facilitating the operation of medical personnel and realizing more convenient free switching of the inflation passage or the deflation passage.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
FIG. 1 is a schematic view of an inflated state of the rapid pressure relief air mattress bed of the present invention;
FIG. 2 is a schematic view of a rapid pressure relief air mattress bed deflation state in accordance with the present invention;
fig. 3 is a schematic structural view of a bed frame according to an embodiment of the present invention.
Icon: 100. an inflator pump; 110. an air bag; 120. a two-position four-way valve; 130. adjusting a valve; 140. A bed board.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention usually put out when in use, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements that are referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" and the like, if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a rapid pressure relief air cushion bed and a control method thereof, which includes an inflator 100, a reversing assembly and an air bag 110 connected in sequence, wherein the reversing assembly is used to selectively switch a communication manner between the inflator 100 and the air bag 110, and the communication manner includes that the reversing assembly, the inflator 100 and the air bag 110 are sequentially in air communication or the air bag 110, the reversing assembly and the inflator 100 are sequentially in air communication.
In the embodiment, the air bag 110 is made of medical grade PVC material, and is waterproof, dirt-resistant, easy to clean, durable, comfortable, breathable and skin-friendly without hurting the body; the air bag 110 in the inflated state is of a cuboid structure, and the upper middle part of the air bag 110 is provided with a defecation hole, so that the critically ill patient can defecate without getting out of bed.
The reversing assembly comprises a two-position four-way valve 120 and a controller (not shown in the figure), the controller is an STC89C52 single chip microcomputer, and the controller is connected with the two-position four-way valve 120 and controls the working state of the two-position four-way valve 120; the two-position four-way valve 120 has four connectors, which are a connector a, a connector B, a connector P and a connector T, respectively, the T-port of the two-position four-way valve 120 is communicated with the airbag 110, the a-port of the two-position four-way valve 120 is communicated with the air inlet of the inflator 100, the B-port of the two-position four-way valve 120 is communicated with the air outlet of the inflator 100, the P-port of the two-position four-way valve 120 is communicated with the outside, and the controller is connected with the inflator 100. The two-position four-way valve 120 mainly functions to change the gas flow direction, that is, to freely switch between the inflation path and the deflation path by the two-position four-way valve 120.
When in use, the method is concretely realized as follows:
when the inflator 100 receives a start signal from the controller, the inflator 100 starts to operate;
referring to fig. 1, when the two-position four-way valve 120 receives an inflation signal sent by the controller, the two-position four-way valve 120 is in a working state, and the external air sequentially passes through the port P of the two-position four-way valve 120, the port a of the two-position four-way valve 120, the inflator 100, the port B of the two-position four-way valve 120, the port T of the two-position four-way valve 120, and the airbag 110 until inflation is completed, which is an inflation path; at this time, the external air is rapidly charged into the airbag 110 by the inflator 100, and at this time, the inflator 100 performs an inflation function.
Referring to fig. 2, when the two-position four-way valve 120 receives the deflation signal sent by the controller, the two-position four-way valve 120 switches from the working state to the emergency state, and the gas in the airbag 110 sequentially passes through the T port of the two-position four-way valve 120, the a port of the two-position four-way valve 120, the inflator 100, the B port of the two-position four-way valve 120, and the P port of the two-position four-way valve 120 until the deflation is completed, which is a deflation path; at this time, the gas in the air bag 110 is rapidly pumped out by the inflator 100, and a negative pressure is formed in the air bag 110, and at this time, the inflator 100 plays a role of exhausting.
In some other embodiments, the two-position four-way valve 120 can be replaced by a reversing valve such as a three-position four-way valve, a two-position five-way valve, etc., and the manufacturer can produce the valve according to actual conditions, and the principle of the valve can also refer to the principle of the two-position four-way valve 120 to realize gas reversing.
In some other embodiments, referring to fig. 3, the bed frame for installing the air cells 110 is further comprised, the bed frame includes a bed plate 140 and a support frame, the bed plate 140 includes an inclined portion for the patient to lean against and a horizontal portion for the patient to sleep.
Example 2
Referring to fig. 1 and fig. 2, the present embodiment provides the following technical solutions based on embodiment 1: the air conditioner further comprises an adjusting valve 130 for adjusting the air volume, wherein the adjusting valve 130 is arranged between the two-position four-way valve 120 and the air bag 110 and is connected with the controller.
In this embodiment, an air volume adjusting valve 130 is disposed between the two-position four-way valve 120 and the airbag 110 for adjusting the air volume introduced into or discharged from the airbag 110, and the controller controls the opening and closing degree of the air volume adjusting valve 130 to precisely adjust the air volume, thereby adjusting the inflation speed of the airbag 110 and the air pressure inside the airbag 110.
In some other embodiments, the device further comprises an audible and visual alarm connected with the controller. When an emergency occurs, the controller sends an instruction to the two-position four-way valve 120 through a control signal to enable the two-position four-way valve to be in an emergency state; meanwhile, the sound-light alarm circuit is started to send out sound and light alarm signals to finish the alarm purpose, so that medical staff can know that the air bag 110 is in the deflation state at the moment; otherwise, if the audible and visual alarm does not give an alarm, the airbag 110 is in a normal working state.
Example 3
The present embodiment proposes, based on the technical solution of embodiment 1 or embodiment 2: the air bag safety device further comprises an air leakage alarm and a pressure sensor arranged in the air bag 110, wherein the air leakage alarm is connected with the pressure sensor through a controller.
In this embodiment, the pressure sensor can detect the air pressure in the air bag 110, so that the user can adjust the expansion degree of the air bag 110 through the controller; in addition, when the pressure sensor detects that the air pressure in the air bag 110 is lower than the preset value of the controller, the controller sends an instruction to the air leakage alarm, and the air leakage alarm starts to alarm to remind a user of needing to replace or maintain the air bag 110; the air leakage alarm adopts a flash type alarm, so that the interference to the diseases in other rooms is avoided.
Example 4
The present embodiment proposes, based on the technical solution of embodiment 1: the bed sheet and the air bag 110 are detachably connected through the connecting piece.
In this embodiment, a first chain belt is adhered to each of two symmetrical sidewalls of the airbag 110, a second chain belt is adhered to each of two symmetrical edges of the sheet, and the first chain belt and the second chain belt are engaged with each other. When the air cushion bed is used, the bed sheet can be firstly paved on the air bag 110 through the zipper, and then air is introduced into the air bag 110 to enable the bed sheet to be attached to the air bag 110, so that the air cushion bed is more tidy.
In some other embodiments based on this embodiment, the connecting member can also be a magic tape or a hidden button.
In summary, in a first aspect, the present invention provides a rapid pressure relief air cushion bed, which includes an inflator 100, a reversing assembly and an air bag 110, which are connected in sequence, wherein the reversing assembly is configured to selectively switch a communication manner between the inflator 100 and the air bag 110, and the communication manner includes that the reversing assembly, the inflator 100 and the air bag 110 are sequentially in air communication or the air bag 110, the reversing assembly and the inflator 100 are sequentially in air communication. The free switching between the inflation passage and the deflation passage is realized through the reversing assembly, and the rapid inflation or rapid deflation pressure relief of the air cushion bed is realized by utilizing different functions of the inflator pump 100 in the inflation passage or the deflation passage respectively, so that better conditions and more rescue time are created for the medical staff to do chest compression; in addition, the labor intensity of medical staff for turning over the patient is reduced.
In a second aspect, an embodiment of the present application provides a control method for a rapid pressure relief air cushion bed:
when the inflator 100 receives a start signal from the controller, the inflator 100 starts to operate;
when the two-position four-way valve 120 receives the inflation signal sent by the controller, the two-position four-way valve 120 is in a working state, and the gas passes through the port P of the two-position four-way valve 120, the port a of the two-position four-way valve 120, the inflator pump 100, the port B of the two-position four-way valve 120, the port T of the two-position four-way valve 120, the regulating valve 130 and the airbag 110 in sequence to complete inflation;
when the two-position four-way valve 120 receives the deflation signal sent by the controller, the two-position four-way valve 120 is in an emergency state, and the gas passes through the airbag 110, the adjusting valve 130, the T port of the two-position four-way valve 120, the a port of the two-position four-way valve 120, the inflator 100, the B port of the two-position four-way valve 120, and the P port of the two-position four-way valve 120 in sequence to complete deflation.
When the medical inflation/deflation control device is in actual use, the controller controls the two-position four-way valve 120, the regulating valve 130, the pressure sensor, the air leakage alarm, the inflator pump 100 and other parts to realize circuit control, so that the medical care personnel can operate conveniently, and the inflation passage or the deflation passage can be switched freely and conveniently.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to 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 (10)
1. The utility model provides a quick pressure release air bed which characterized in that: including the inflator pump, switching-over subassembly and the gasbag that connect gradually, the switching-over subassembly is used for optionally switching the inflator pump with the connected mode of gasbag, wherein, the connected mode includes the switching-over subassembly the inflator pump reaches the gasbag is gaseous intercommunication in proper order or the gasbag the switching-over subassembly reaches the inflator pump is gaseous intercommunication in proper order.
2. The rapid pressure relief air cushion bed according to claim 1, wherein: the reversing assembly comprises a two-position four-way valve and a controller connected with the two-position four-way valve, a T port of the two-position four-way valve is communicated with the air bag, an A port of the two-position four-way valve is communicated with an air inlet of the inflator pump, a B port of the two-position four-way valve is communicated with an air outlet of the inflator pump, a P port of the two-position four-way valve is communicated with the outside, and the controller is connected with the inflator pump.
3. The rapid pressure relief air cushion bed according to claim 2, wherein: the air quantity adjusting device is characterized by further comprising an adjusting valve used for adjusting the air quantity, wherein the adjusting valve is arranged between the two-position four-way valve and the air bag and is connected with the controller.
4. The rapid pressure relief air cushion bed according to claim 2, wherein: and the audible and visual alarm is connected with the controller.
5. The rapid pressure relief air cushion bed according to any one of claims 2-4, wherein: still include the gas leakage alarm and set up in pressure sensor in the gasbag, the gas leakage alarm with pressure sensor passes through the controller is connected.
6. The rapid pressure relief air cushion bed according to claim 1, wherein: the bed sheet and the air bag are detachably connected through the connecting piece.
7. The rapid pressure relief air cushion bed according to claim 6, wherein: the connecting pieces are two groups, and the two groups of connecting pieces are respectively and symmetrically arranged on the air bag.
8. The rapid pressure relief air cushion bed according to claim 6, wherein: the connecting piece comprises a zipper, a magic tape or a hidden button.
9. The rapid pressure relief air cushion bed according to any one of claims 1 and 6-8, wherein: the bed frame comprises a bed plate and a supporting frame, wherein the bed plate comprises an inclined part and a horizontal part.
10. A control method of a rapid pressure relief air cushion bed is characterized in that:
when the inflator receives a starting signal sent by the controller, the inflator starts to work;
when the two-position four-way valve receives an inflation signal sent by the controller, the two-position four-way valve is in a working state, and gas passes through a port P of the two-position four-way valve, a port A of the two-position four-way valve, an inflator pump, a port B of the two-position four-way valve, a port T of the two-position four-way valve, a regulating valve and an air bag in sequence to complete inflation;
when the two-position four-way valve receives an air release signal sent by the controller, the two-position four-way valve is in an emergency state, and air sequentially passes through the air bag, the regulating valve, the T port of the two-position four-way valve, the A port of the two-position four-way valve, the inflator pump, the B port of the two-position four-way valve and the P port of the two-position four-way valve to release air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592017.7A CN114404174A (en) | 2021-12-23 | 2021-12-23 | Air cushion bed capable of quickly relieving pressure and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592017.7A CN114404174A (en) | 2021-12-23 | 2021-12-23 | Air cushion bed capable of quickly relieving pressure and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114404174A true CN114404174A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111592017.7A Withdrawn CN114404174A (en) | 2021-12-23 | 2021-12-23 | Air cushion bed capable of quickly relieving pressure and control method thereof |
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| CN (1) | CN114404174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114852534A (en) * | 2022-06-14 | 2022-08-05 | 山东征驰汽车制造有限公司 | Vertical tank of powder tank truck |
-
2021
- 2021-12-23 CN CN202111592017.7A patent/CN114404174A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114852534A (en) * | 2022-06-14 | 2022-08-05 | 山东征驰汽车制造有限公司 | Vertical tank of powder tank truck |
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Application publication date: 20220429 |