Pressure regulating device and air bed having the same

Abstract

The utility model provides a kind of pressure regulating device and air bed with it, wherein pressure regulating device includes main body, pressure gauge, fixed part, adjusting part, sealing limiting part, extruding piece and elastic piece;When using, pressure gauge is installed in series to be located in the middle of air cushion bed gas pipeline, initial state, extruding piece inserts into the air outlet of air inlet pipe;When the pressure in air inlet pipe is too large, gas pushes away extruding piece and discharges through air outlet pipe;When the pressure in air inlet pipe is the same as the elastic force of elastic piece extruding extruding piece, extruding piece re-presses sealing air outlet.The pressure regulating device of the utility model can monitor the internal pressure value of air cushion bed in real time through pressure gauge, so that the pressure can be accurately controlled when inflating air cushion bed, and the best comfort for patients is ensured.

Description

Technical Field

[0001] This utility model relates to the field of air mattress technology, specifically to a pressure regulating device and an air mattress having the same. Background Technology

[0002] Medical air mattresses, also known as anti-bedsore mattresses, are designed to prevent bedsores in patients who are bedridden for extended periods. Bedsores are primarily caused by sustained pressure on the skin, leading to tissue ischemia and hypoxia, which in turn causes necrosis and ulceration. Using an air mattress can reduce local pressure, preventing cell ischemia and necrosis, and keeping the skin dry, reducing sweat maceration and preventing local skin necrosis and ulceration, thus significantly reducing the likelihood of bedsores. Furthermore, air mattresses reduce the physical exertion required from patients, promoting recovery; they are particularly suitable for patients with extensive burns and cardiopulmonary insufficiency.

[0003] Air mattresses can prevent pressure ulcers and are an effective and comfortable option for long-term bedridden patients. When using existing air mattresses, healthcare workers first inflate them with an air pump. However, a current problem is that the actual internal pressure of the air mattress during inflation is unclear, making it impossible to obtain precise pressure values. This means that the internal pressure cannot be accurately adjusted to suit the patient's physical condition. In other words, theoretically, different patients require air mattresses with different inflated pressures to better facilitate recovery, with body weight being one of the most significant influencing factors. Conversely, if the air mattress is inflated too high, it reduces the effective contact area between the patient's body and the mattress, increasing localized average pressure, reducing patient comfort, and affecting the pressure-reducing effect in preventing pressure ulcers. The most significantly affected area is the sacrum and coccyx.

[0004] Therefore, how to design an adjustment device or air mattress that allows medical staff to accurately obtain the inflation pressure value inside the air mattress and precisely adjust the inflation pressure inside the air mattress to suit the patient's physical condition is a problem that has not yet been effectively solved in clinical practice. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects in the prior art where medical staff cannot accurately know the internal pressure value of the air mattress when inflating it, and cannot match air mattresses filled with gas of different pressure values ​​according to the patient's physical condition. This invention provides a pressure regulating device that can help medical staff accurately know the inflation pressure value inside the air mattress, and thus can precisely adjust the inflation pressure inside the air mattress to suit the physical condition of different patients.

[0006] This utility model also provides an air mattress with a pressure regulating device.

[0007] Therefore, this utility model provides a pressure regulating device, comprising: The main body has a hollow inner cavity, an air inlet pipe at the top that communicates with the hollow inner cavity, a bottom opening at the bottom, and an air outlet pipe that communicates with the hollow inner cavity on the side near the air inlet pipe. A pressure gauge, one end of which is connected to the air inlet pipe, is used to detect the pressure inside the air mattress; A fastener, having an internally threaded through hole, is fixedly installed at the bottom end of the bottom opening; The adjusting component includes a threaded main body and an operating part. The threaded main body is provided with an external thread, which can be screwed onto the fixing component. After the threaded main body is screwed onto the fixing component, one end enters the inner cavity of the main body. A sealing and limiting component is movably disposed inside the inner cavity of the main body, with its bottom end abutting against the top end of the threaded main body, and the outer circumferential surface of the sealing and limiting component being in a sealing sliding connection with the inner wall of the inner cavity of the main body. The extrusion member includes an insertion part and a connecting part fixedly connected to the insertion part, wherein the top end of the insertion part can be pluggably inserted into the air outlet of the air inlet pipe and presses the air outlet to seal it. The elastic element has one end fixedly sleeved on the sealing and limiting part, and the other end fixedly sleeved on the connecting part; In the initial state, the extrusion member is inserted into the air outlet of the air inlet pipe under the elastic force of the elastic member, sealing the air outlet of the air inlet pipe; When the pressure inside the air inlet pipe is greater than the pressure of the elastic element squeezing the extruder, the gas pushes the extruder aside and enters the hollow inner cavity, and is further discharged through the air outlet pipe; until the pressure inside the air inlet pipe is the same as the elastic force of the elastic element squeezing the extruder, the extruder re-squeezes and seals the air outlet of the air inlet pipe.

[0008] As a preferred embodiment, the bottom end of the main body is provided with a plurality of threaded holes evenly distributed around the bottom opening, and the fixing member is provided with a plurality of through holes evenly distributed opposite to the threaded holes. Bolts are used to pass through the through holes and screw into the threaded holes, thereby fixing the fixing member to the bottom end of the main body.

[0009] As a preferred embodiment, the operating part is fixedly disposed on the other end of the threaded body, and the outer end face of the operating part is provided with an indicator for indicating the magnitude of the adjustment pressure, and the outer circumferential wall is provided with anti-slip texture.

[0010] As a preferred embodiment, the sealing limiting member includes a limiting cylinder and a connecting base, with one end of the elastic member sleeved on the limiting cylinder; the bottom end of the limiting cylinder is fixedly connected to the top surface of the connecting base, and an annular groove is provided on the outer circumferential wall of the connecting base. It also includes an annular sealing ring, which is installed inside the annular groove and protrudes from the annular groove.

[0011] As a preferred embodiment, the bottom surface of the connecting base abuts against the top end of the threaded main body, and the threaded main body can drive the connecting base to rise or fall inside the cavity of the main body.

[0012] As a preferred embodiment, the outer diameter of the insertion part gradually increases from the top end to the bottom end, and the bottom end of the insertion part is fixedly connected to the top end of the connecting part.

[0013] This utility model also provides an air mattress with a pressure regulating device, comprising: The bed frame is made of a soft, stretchable material and includes several cylindrical air chambers of the same size. The cylindrical air chambers are arranged in parallel from one end of the bed frame to the other end. Each cylindrical air chamber has a separate sealed inner cavity and both ends are hemispherical. The first gas supply pipeline has an outlet end divided into a first branch pipe and a second branch pipe. The first branch pipe is connected to a plurality of cylindrical air chambers from one end of the bed to the middle of the bed, and the second branch pipe is connected to a plurality of cylindrical air chambers from the other end of the bed to the middle of the bed. An air pump has an air outlet, and the air inlet of the first air supply pipeline is connected to the air outlet of the air pump; the air pump can inflate the bed through the first air supply pipeline. A three-way connector is installed in the middle of one side of the bed body, including a first connecting pipe, a second connecting pipe and a third connecting pipe that are interconnected. The free end of the first branch pipe is connected to the first connecting pipe, and the free end of the second branch pipe is connected to the second connecting pipe. A pressure regulating device is installed in the middle of one side of the bed. The pressure regulating device is any of the pressure regulating devices described above, and the other end of the pressure gauge is connected to the third connecting pipe.

[0014] As a preferred embodiment, the first branch pipe is connected to several cylindrical air chambers through several first gas supply line branches; and / or, the second branch pipe is connected to several cylindrical air chambers through several second gas supply line branches.

[0015] As a preferred embodiment, the air pump is equipped with an air pump switch and an inflation knob.

[0016] The technical solution provided by this utility model has the following advantages: 1. The pressure regulating device of this utility model includes a main body, a pressure gauge, a fixing component, an adjusting component, a sealing and limiting component, a squeezing component, and an elastic component; wherein the main body has an inner cavity, an air inlet pipe communicating with the inner cavity is provided at the top end, a bottom opening is provided at the bottom end, and an air outlet pipe communicating with the inner cavity is provided on the side near the air inlet pipe; one end of the pressure gauge is connected to the air inlet pipe for detecting the pressure inside the air mattress; the fixing component has an internal threaded through hole and is fixedly installed at the bottom end of the bottom opening; the adjusting component includes a threaded main body and an operating part, the threaded main body is provided with an external thread, which can engage with... The fastener is screwed in, and after the threaded main body is screwed in, one end enters the inner cavity of the main body; the sealing limiter is movably disposed inside the inner cavity of the main body, with its bottom end abutting against the top end of the threaded main body, and the outer circumferential surface of the sealing limiter is in a sealing sliding connection with the inner wall of the inner cavity of the main body; the extrusion part includes an insertion part and a connecting part fixedly connected to the insertion part, the top end of the insertion part can be inserted into the air outlet of the air inlet pipe and press and seal the air outlet; one end of the elastic member is fixedly sleeved on the sealing limiter, and the other end is fixedly sleeved on the connecting part.

[0017] In use, the pressure regulating device of this invention uses a pressure gauge connected in series on the air supply line located in the middle of the air mattress. Therefore, when inflating the air mattress, medical personnel can accurately obtain the internal pressure value by observing the pressure gauge. When it is necessary to inflate the air mattress to a specific set pressure value, first turn on the air pump to inflate the air mattress and observe the pressure gauge reading. Once the pressure gauge reading reaches the set target pressure value, rotate the adjusting component to cause the sealing limit component to relax the elastic component, and the elastic component to relax the squeezing component, achieving dynamic balance. After the pressure is set, in the initial state, the squeezing component is inserted into the air outlet of the air inlet pipe under the elastic force of the elastic component, sealing the air outlet. When the gas pressure inside the air mattress exceeds the set gas pressure value (i.e., exceeds the set pressure value of the elastic component squeezing the squeezing component), the gas pushes open the squeezing component and enters the inner cavity of the main body, and is further discharged through the air outlet pipe, thus maintaining the pressure inside the air mattress within the set pressure value.

[0018] This invention's pressure regulating device uses a pressure gauge to monitor the internal pressure of the air mattress in real time, enabling precise pressure control during inflation to ensure optimal patient comfort. The device allows for setting specific inflation pressure values; when the air pump's inflation pressure exceeds the set value, it releases gas, ensuring the pressure never exceeds the set value, thus controlling the inflation pressure within the air mattress to match the patient's physical condition.

[0019] 2. The pressure regulating device of this utility model includes a sealing and limiting component comprising a limiting cylinder and a connecting base. The connecting base has an annular groove on its outer circumferential wall. An annular sealing ring is installed inside the annular groove and protrudes from the annular groove. The annular sealing ring can seal the inner cavity of the main component to prevent gas from flowing out and affecting the accuracy of the pressure regulating device.

[0020] 3. This utility model also provides an air mattress with a pressure regulating device, including a mattress body, a first air supply pipeline, an air pump, a three-way connector, and a pressure regulating device; wherein, the mattress body is made of a soft, stretchable material and includes several cylindrical air chambers of the same size, which are arranged parallel to each other from one end of the mattress body to the other, each cylindrical air chamber having a separate sealed inner cavity, and both ends being hemispherical; the air outlet of the first air supply pipeline is divided into a first branch pipe and a second branch pipe, the first branch pipe being connected to several cylindrical air chambers from one end of the mattress body to the middle of the mattress body. The second branch pipe is connected to several cylindrical air chambers from the other end of the bed to the middle of the bed; the air pump has an air outlet, and the air inlet of the first air supply pipe is connected to the air outlet of the air pump; the air pump can inflate the bed through the first air supply pipe; a three-way connector is installed in the middle of one side of the bed, including a first connecting pipe, a second connecting pipe and a third connecting pipe that are interconnected, the free end of the first branch pipe is connected to the first connecting pipe, and the free end of the second branch pipe is connected to the second connecting pipe; a pressure regulating device is installed in the middle of one side of the bed, and the other end of the pressure gauge is connected to the third connecting pipe.

[0021] When using the air mattress with pressure regulating device of this invention on a patient, connect the pressure gauge of the pressure regulating device to the third connecting pipe, then adjust the adjusting component upwards to compress the elastic component, causing the elastic component to press against the squeezing component with a larger pressure, thus blocking the air outlet of the air inlet pipe; then inflate the mattress using an air pump, and observe the internal pressure value of the mattress using the pressure gauge; then adjust the pressure regulating device according to the patient's actual feeling. If the pressure inside the air mattress is too high and the mattress is too hard, the adjusting component can be rotated downwards to move the sealing limit component downwards, causing the elastic component to extend and loosen, reducing the pressure applied by the elastic component to the squeezing component. The gas in the air inlet pipe pushes the squeezing component downwards to open the air outlet of the air inlet pipe, and the gas is discharged from the air outlet of the air inlet pipe and then through the air outlet pipe, thereby reducing the pressure inside the air mattress; continue to adjust the pressure regulating device until the patient feels comfortable, then stop adjusting the pressure regulating device; continue to inflate the air mattress using an air pump to maintain the pressure of the mattress. This utility model of an air mattress with a pressure regulating device can monitor the internal pressure value of the mattress in real time through a pressure gauge when used by patients, and can accurately control the pressure to ensure that patients obtain the best comfort. The pressure of the air mattress can be adjusted according to the actual situation of the patient, which can avoid the situation where the pressure is too high and the air mattress is too hard, reducing the contact area between the patient and the air mattress and causing discomfort. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0023] Figure 1 This is a schematic diagram of the overall structure of the pressure regulating device of this utility model.

[0024] Figure 2 It is Figure 1 Cross-sectional view after the pressure gauge has been removed.

[0025] Figure 3 yes Figure 1 A schematic diagram of the main component.

[0026] Figure 4 yes Figure 1 A schematic diagram of the structure of the fixing component.

[0027] Figure 5 This is a structural diagram of the assembled adjusting component, sealing and limiting component, elastic component, and extrusion component.

[0028] Figure 6 This is a schematic diagram of the structure where the adjusting component and the sealing limit component abut.

[0029] Figure 7 yes Figure 6 Another stereoscopic view.

[0030] Figure 8 This is a schematic diagram of the overall structure of another pressure regulating device of this utility model and an air mattress having it.

[0031] Figure 9 yes Figure 8 Enlarged structural diagram of part A.

[0032] Reference numerals: 1. Main body; 11. Inlet pipe; 12. Bottom opening; 13. Outlet pipe; 14. Threaded hole; 2. Fixing component; 21. Internal threaded through hole; 22. Through hole; 23. Bolt; 3. Adjusting component; 32. Sealing and limiting component; 33. Threaded main body; 34. Operating part; 35. Indicating part; 36. Limiting cylinder; 37. Connecting base; 38. Annular groove; 39. Annular sealing ring; 4. Extrusion component; 41. 1. Insertion part; 42. Connecting part; 5. Elastic element; 6. Bed body; 61. Cylindrical air chamber; 7. Air pump; 71. Air pump switch; 72. Inflation knob; 8. First air supply line; 81. First branch pipe; 82. Second branch pipe; 84. Branch of the first air supply line; 85. Branch of the second air supply line; 9. T-connector; 91. First connecting pipe; 92. Second connecting pipe; 93. Third connecting pipe; 10. Pressure gauge. Detailed Implementation

[0033] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0034] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0035] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0036] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Example 1

[0037] This embodiment provides a pressure regulating device, such as... Figure 1-7As shown, it includes: a main body 1, a pressure gauge 10, a fixing component 2, an adjusting component 3, a sealing and limiting component 32, a squeezing component 4, and an elastic component 5; wherein the main body 1 has a hollow inner cavity, an air inlet pipe 11 communicating with the hollow inner cavity at the top end, a bottom opening 12 at the bottom end, and an air outlet pipe 13 communicating with the hollow inner cavity on the side near the air inlet pipe 11; one end of the pressure gauge 10 is connected to the air inlet pipe 11 and is used to detect the pressure inside the air mattress; the fixing component 2 has internal threads. A through hole 21 is fixedly installed at the bottom end of the bottom opening 12; the adjusting member 3 includes a threaded main body 33 and an operating part 34. The threaded main body 33 is provided with external threads and can be screwed to the fixing member 2. After the threaded main body 33 is screwed to the fixing member 2, one end enters the inner cavity of the main body 1; the sealing limiting member 32 is movably disposed inside the inner cavity of the main body 1, with its bottom end abutting against the top end of the threaded main body 33, and the sealing limiting member 3... The outer circumferential surface of component 2 is slidably connected to the inner wall of the inner cavity of the main body component 1; the extrusion component 4 includes an insertion part 41 and a connecting part 42 fixedly connected to the insertion part 41. The top end of the insertion part 41 can be inserted into the air outlet of the air inlet pipe 11 and presses and seals the air outlet; one end of the elastic component 5 is fixedly sleeved on the sealing limit component 32, and the other end is fixedly sleeved on the connecting part 42; in the initial state, the extrusion component 4 is inserted into the air outlet of the air inlet pipe 11 under the elastic force of the elastic component 5, sealing the air outlet of the air inlet pipe 11; when the pressure value in the air inlet pipe 11 is greater than the pressure value of the elastic component 5 pressing the extrusion component 4, the gas pushes the extrusion component 4 open and enters the hollow inner cavity, and is further discharged through the air outlet pipe 13; until the pressure value in the air inlet pipe 11 is the same as the elastic force value of the elastic component 5 pressing the extrusion component 4, the extrusion component 4 re-seals the air outlet of the air inlet pipe 11.

[0038] In this embodiment, the pressure regulating device, with pressure gauge 10 connected in series on the air supply line located in the middle of the air mattress, allows medical personnel to accurately obtain the internal pressure value of the air mattress by observing pressure gauge 10 when inflating it. When it is necessary to inflate the air mattress to a specific set pressure value, the air pump is first turned on to inflate the air mattress, and the value of pressure gauge 10 is observed. When the value of pressure gauge 10 reaches the set target pressure value, the adjusting component 3 is rotated, causing the sealing limit component 32 to relax the elastic component 5, and the elastic component 5 to relax the squeezing component 4, achieving dynamic balance. After the pressure is set, in the initial state, the squeezing component 4 is inserted into the air outlet of the air inlet pipe 11 under the elastic force of the elastic component 5, sealing the air outlet. When the gas pressure value inside the air mattress is greater than the set gas pressure value (i.e., greater than the set pressure value of the elastic component 5 squeezing the squeezing component 4), the gas pushes the squeezing component 4 open and enters the inner cavity of the main body component 1, and is further discharged through the air outlet pipe 13 to maintain the pressure value inside the air mattress from exceeding the set pressure value.

[0039] The pressure regulating device in this embodiment can monitor the internal pressure of the air mattress in real time via pressure gauge 10, enabling precise pressure control during air mattress inflation to ensure optimal patient comfort. This pressure regulating device can be set to a specific inflation pressure value. When the inflation pressure from the air pump exceeds the set value, gas is expelled, ensuring the pressure never exceeds the set value, thereby controlling the inflation pressure within the air mattress to match the patient's physical condition.

[0040] like Figure 3-4 As shown, the bottom end of the main body 1 is provided with a plurality of threaded holes 14 evenly around the bottom opening 12, and the fixing member 2 is provided with a plurality of through holes 22 that are opposite to the threaded holes 14. Bolts 23 are used to pass through the through holes 22 and screw into the threaded holes 14, thereby fixing the fixing member 2 to the bottom end of the main body 1. The threaded connection is firmly fixed and easy to disassemble.

[0041] like Figure 7 As shown, the operating part 34 is fixedly mounted on the other end of the threaded main body 33. The outer end face of the operating part 34 is provided with an indicator part 35 for indicating the magnitude of the adjustment pressure. The outer circumferential wall is provided with anti-slip texture. The indicator part 35 is used to remind the user of the direction of rotation. The anti-slip texture can increase friction and prevent slippage, which would affect the rotation.

[0042] like Figure 5-6As shown, the sealing and limiting component 32 includes a limiting cylinder 36 and a connecting base 37. One end of the elastic component 5 is sleeved on the limiting cylinder 36. The bottom end of the limiting cylinder 36 is fixedly connected to the top surface of the connecting base 37. An annular groove 38 is provided on the outer circumferential wall of the connecting base 37. It also includes an annular sealing ring 39, which is installed inside the annular groove 38 and protrudes from the annular groove 38. The annular sealing ring 39 can seal the inner cavity of the main body 1 to prevent gas from flowing out and affecting the accuracy of the pressure regulating device.

[0043] The bottom surface of the connecting base 37 abuts against the top end of the threaded main body 33. The threaded main body 33 can drive the connecting base 37 to rise or fall inside the cavity of the main body 1, thereby adjusting the pressure value.

[0044] The outer diameter of the insertion part 41 gradually increases from the top end to the bottom end, which can prevent gas from flowing out. The bottom end of the insertion part 41 is fixedly connected to the top end of the connecting part 42. Example 2

[0045] This embodiment provides an air mattress with a pressure regulating device, such as... Figure 8-9 As shown, the device includes a bed body 6, a first air supply pipeline 8, an air pump 7, a three-way connector 9, and a pressure regulating device. The bed body 6 is made of a flexible, expandable material and includes several cylindrical air chambers 61 of the same size. These cylindrical air chambers 61 are arranged parallel to each other from one end of the bed body 6 to the other. Each cylindrical air chamber 61 has a separate sealed inner cavity and hemispherical ends. The air outlet of the first air supply pipeline 8 is divided into a first branch pipe 81 and a second branch pipe 82. The first branch pipe 81 communicates with the several cylindrical air chambers 61 extending from one end of the bed body 6 to the middle of the bed body 6, and the second branch pipe 82 communicates with the several cylindrical air chambers 61 extending from the other end of the bed body 6 to the middle of the bed body 6. The air chamber 61 is connected; the air pump 7 has an air outlet, and the air inlet of the first air supply pipe 8 is connected to the air outlet of the air pump 7; the air pump 7 can inflate the bed 6 through the first air supply pipe 8; the three-way connector 9 is installed in the middle of one side of the bed 6, including a first connecting pipe 91, a second connecting pipe 92 and a third connecting pipe 93 that are connected to each other, the free end of the first branch pipe 81 is connected to the first connecting pipe 91, and the free end of the second branch pipe 82 is connected to the second connecting pipe 92; the pressure regulating device is installed in the middle of one side of the bed 6, and the pressure regulating device is the pressure regulating device described in Embodiment 1, and the other end of the pressure gauge 10 is connected to the third connecting pipe 93.

[0046] When using the air mattress with pressure regulating device of this embodiment on a patient, the pressure gauge 10 of the pressure regulating device is connected to the third connecting pipe 93. Then, the adjusting member 3 is adjusted upward, so that the elastic member 5 is compressed, and the elastic member 5 squeezes the squeezing member 4 with a larger pressure, so that the squeezing member 4 blocks the air outlet of the air inlet pipe 11. Then, the bed body 6 is inflated by the air pump 7, and the pressure value inside the bed body 6 is observed by the pressure gauge 10. Then, the pressure regulating device is adjusted according to the patient's actual feeling. If the pressure inside the air mattress is too high and the bed body 6 is too hard, the adjusting member 3 can be rotated downward, so that it moves the sealing limit member 32 downward, the elastic member 5 stretches and loosens, the pressure applied by the elastic member 5 on the squeezing member 4 decreases, and the gas in the air inlet pipe 11 is pushed downward. The moving extruder 4 moves downward to open the air outlet of the air inlet pipe 11, and the gas is discharged from the air outlet of the air inlet pipe 11 and discharged through the air outlet pipe 13, thereby reducing the pressure inside the air mattress. The pressure regulating device is continuously adjusted until the patient feels comfortable, and then the adjustment of the pressure regulating device is stopped. The air mattress is continuously inflated by the air pump 7 so that the bed body 6 can maintain the pressure. In this embodiment, when the air mattress with the pressure regulating device is used by the patient, the pressure gauge 10 monitors the internal pressure value of the bed body 6 in real time, which can accurately control the pressure and ensure that the patient obtains the best comfort. The pressure of the air mattress can be adjusted according to the actual situation of the patient, which can avoid the situation where the pressure is too high, making the air mattress too hard, reducing the contact area between the patient and the air mattress, and causing discomfort.

[0047] When the air pump 7 inflates the bed 6 through the first air supply line 8, the two branch lines of the first air supply line 8 simultaneously introduce air from both ends of the bed 6 into the middle of the bed. This design ensures that the gas is evenly injected into the bed 6, avoiding the problem of pressure imbalance at both ends of the bed 6 due to single-point inflation. Setting the pressure gauge 10 in the middle of the bed 6 allows for accurate detection of the evenly distributed pressure value inside; setting the pressure gauge 10 at one end of the bed 6 may result in inaccurate test results.

[0048] The first branch pipe 81 is connected to several cylindrical air chambers 61 through several first gas supply pipe branches 84; the second branch pipe 82 is connected to several cylindrical air chambers 61 through several second gas supply pipe branches 85.

[0049] The air pump 7 is equipped with an air pump switch 71 and an inflation knob 72. The air pump switch 71 is used to control the opening and closing of the air pump 7, and the inflation knob 72 is used to control the air intake.

[0050] The air mattress with a pressure regulating device in this embodiment is used as follows: When using the air mattress with a pressure regulating device in this embodiment on a patient, connect the pressure gauge 10 of the pressure regulating device to the third connecting pipe 93, then adjust the adjusting member 3 upwards to compress the elastic member 5, causing the elastic member 5 to press the squeezing member 4 with a larger pressure, so that the squeezing member 4 blocks the air outlet of the air inlet pipe 11; then inflate the bed body 6 through the air pump 7, and observe the pressure value inside the bed body 6 through the pressure gauge 10; then adjust the pressure regulating device according to the patient's actual feeling, such as the feeling of the air mattress. If the internal pressure is too high and the bed body 6 is too rigid, the adjusting component 3 can be rotated downwards, causing it to move the sealing limit component 32 downwards. The elastic component 5 will extend and loosen, reducing the pressure applied by the elastic component 5 to the squeezing component 4. The gas in the air inlet pipe 11 will push the squeezing component 4 downwards, opening the air outlet of the air inlet pipe 11. The gas will then be discharged from the air outlet of the air inlet pipe 11 and discharged through the air outlet pipe 13, thereby reducing the pressure inside the air mattress. The pressure regulating device can be continuously adjusted until the patient feels comfortable, and then the adjustment of the pressure regulating device can be stopped. The air mattress can be continuously inflated by the air pump 7 to maintain the pressure of the bed body 6.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A pressure regulating device, characterized in that, include: The main body (1) has a hollow inner cavity, an air inlet pipe (11) communicating with the hollow inner cavity is provided at the top, a bottom opening (12) is provided at the bottom, and an air outlet pipe (13) communicating with the hollow inner cavity is also provided on the side near the air inlet pipe (11). A pressure gauge (10) is connected at one end to the air inlet pipe (11) and is used to detect the pressure inside the air mattress; The fastener (2) has an internal threaded through hole (21) and is fixedly installed at the bottom end of the bottom opening (12); Adjustment component (3) includes a threaded main body (33) and an operating part (34). The threaded main body (33) is provided with an external thread, which can be screwed into the fixing component (2). After the threaded main body (33) is screwed into the fixing component (2), one end enters the inner cavity of the main body (1). The sealing limiting member (32) is movable up and down inside the inner cavity of the main body (1), with its bottom end abutting against the top end of the threaded main body (33), and the outer circumferential surface of the sealing limiting member (32) is in a sealing sliding connection with the inner wall of the inner cavity of the main body (1). The extrusion member (4) includes an insertion part (41) and a connecting part (42) fixedly connected to the insertion part (41). The top end of the insertion part (41) can be inserted into the air outlet of the air inlet pipe (11) and press and seal the air outlet. The elastic element (5) is fixedly sleeved on the sealing and limiting element (32) at one end and fixedly sleeved on the connecting part (42) at the other end; In the initial state, the extrusion member (4) is inserted into the air outlet of the air inlet pipe (11) under the elastic force of the elastic member (5) to seal the air outlet of the air inlet pipe (11); When the pressure value inside the air inlet pipe (11) is greater than the pressure value of the elastic element (5) squeezing the extrusion element (4), the gas pushes the extrusion element (4) open and enters the hollow inner cavity, and is further discharged through the air outlet pipe (13); until the pressure value inside the air inlet pipe (11) is the same as the elastic force value of the elastic element (5) squeezing the extrusion element (4), the extrusion element (4) re-squeezes and seals the air outlet of the air inlet pipe (11).

2. The pressure regulating device according to claim 1, characterized in that: The bottom end of the main body (1) is provided with a plurality of threaded holes (14) evenly around the bottom opening (12). The fixing part (2) is provided with a plurality of through holes (22) that are opposite to the threaded holes (14). A bolt (23) is used to pass through the through holes (22) and screw to the threaded holes (14) to fix the fixing part (2) at the bottom end of the main body (1).

3. The pressure regulating device according to claim 1, characterized in that: The operating part (34) is fixedly disposed on the other end of the threaded main body (33). The outer end face of the operating part (34) is provided with an indicator (35) for indicating the magnitude of the adjustment pressure, and the outer circumferential wall is provided with anti-slip texture.

4. The pressure regulating device according to claim 1, characterized in that: The sealing limiting member (32) includes a limiting cylinder (36) and a connecting base (37). One end of the elastic member (5) is sleeved on the limiting cylinder (36). The bottom end of the limiting cylinder (36) is fixedly connected to the top surface of the connecting base (37). The outer circumferential wall of the connecting base (37) is provided with an annular groove (38). It also includes an annular sealing ring (39), which is installed inside the annular groove (38) and protrudes from the annular groove (38).

5. The pressure regulating device according to claim 4, characterized in that: The bottom surface of the connecting base (37) abuts against the top end of the threaded main body (33), and the threaded main body (33) can drive the connecting base (37) to rise or fall inside the cavity of the main body (1).

6. The pressure regulating device according to claim 1, characterized in that: The outer diameter of the insertion part (41) gradually increases from the top end to the bottom end, and the bottom end of the insertion part (41) is fixedly connected to the top end of the connecting part (42).

7. An air mattress with a pressure regulating device, characterized in that, include: The bed frame (6) is made of a soft and stretchable material and includes several cylindrical air chambers (61) of the same size. The several cylindrical air chambers (61) are arranged in parallel from one end to the other end of the bed frame (6). Each cylindrical air chamber (61) has a separate sealed inner cavity and both ends are hemispherical. The first gas supply pipeline (8) has an outlet end divided into a first branch pipe (81) and a second branch pipe (82). The first branch pipe (81) is connected to a plurality of cylindrical air chambers (61) from one end of the bed body (6) to the middle of the bed body (6). The second branch pipe (82) is connected to a plurality of cylindrical air chambers (61) from the other end of the bed body (6) to the middle of the bed body (6). The air pump (7) has an air outlet end, and the air inlet end of the first air supply pipeline (8) is connected to the air outlet end of the air pump (7); the air pump (7) can inflate the bed (6) through the first air supply pipeline (8); A three-way connector (9) is installed in the middle of one side of the bed body (6), including a first connecting pipe (91), a second connecting pipe (92) and a third connecting pipe (93) that are connected to each other. The free end of the first branch pipe (81) is connected to the first connecting pipe (91), and the free end of the second branch pipe (82) is connected to the second connecting pipe (92). A pressure regulating device is installed in the middle of one side of the bed body (6). The pressure regulating device is the pressure regulating device according to any one of claims 1-6. The other end of the pressure gauge (10) is connected to the third connecting pipe (93).

8. The air mattress with a pressure regulating device according to claim 7, characterized in that: The first branch pipe (81) is connected to a plurality of cylindrical air chambers (61) through a plurality of first gas supply line branches (84); and / or, the second branch pipe (82) is connected to a plurality of cylindrical air chambers (61) through a plurality of second gas supply line branches (85).

9. The air mattress with a pressure regulating device according to claim 7, characterized in that: The air pump (7) is equipped with an air pump switch (71) and an air filling knob (72).

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