CN113180960A

CN113180960A - Inflatable triangular pillow convenient to fix

Info

Publication number: CN113180960A
Application number: CN202110437390.9A
Authority: CN
Inventors: 邵红; 杨爱玲; 胡婕儿; 陈项琳; 单亚维; 范丽霞; 叶柯; 吴波
Original assignee: Ningbo Huamei Hospital University of CAS
Current assignee: Ningbo Huamei Hospital University of CAS
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-07-30
Anticipated expiration: 2041-04-22
Also published as: CN113180960B

Abstract

The invention discloses an inflatable triangular pillow convenient to fix, which comprises a triangular pillow, wherein the cross section of the triangular pillow is triangular, and an inclined first inclined surface is arranged on the triangular pillow; a bone headrest provided on the triangular pillow, the bone headrest being disposed on the first inclined surface; the bone headrest is fixed on one side of the triangular pillow, and the inflatable cushion is arranged on the other side of the triangular pillow; the triangular pillow is also provided with an air inlet assembly, and the inflatable cushions are provided with one-way valve members associated with the air inlet assembly; the triangular pillow designed by the invention can adapt to the body types of different patients and the widths of different sickbeds through the inflatable cushion arranged on one side of the triangular pillow, and the bone pillow can support the waist and the back of the patient, so that the discomfort of the patient is reduced.

Description

Inflatable triangular pillow convenient to fix

Technical Field

The invention belongs to the technical field of medical treatment, and particularly relates to an inflatable triangular pillow convenient to fix.

Background

The triangle pillow wide application in clinical work can effectively avoid the emergence of pressure nature damage, what the triangle pillow routine adoption of present clinical use adopted is: 50cm 25cm 20 cm; the adopted materials are as follows: the inner core is made of high-quality sponge, and the outer layer is made of pure cotton cloth.

The structural features of the human spine are four physiological curvatures, i.e., cervical lordosis, thoracic kyphosis, lumbar lordosis, and sacral kyphosis. In the process of clinical use of the triangular pillow, the triangular pillow is usually placed on the chest, waist and back, and a 30-degree oblique angle is adopted, but the inclined surfaces of the triangular pillow are positioned on the same horizontal slope, so that a patient always feels the hanging feeling of the waist and back and cannot effectively transfer gravity; the existing triangular pillow can not directly support the bed fence basically, can effectively maintain the 30-degree inclined lying position of a patient, and usually needs 2 or 3 triangular pillows, a milk box and a cotton quilt for auxiliary support. Meanwhile, the outer layer of the pure cotton cloth of the triangular pillow is often polluted by sweat and body fluid of a patient, the pure cotton cloth is not easy to wipe, discomfort of the patient is increased, and infection cannot be effectively prevented.

Disclosure of Invention

The invention provides an inflatable triangular pillow convenient for height adjustment in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

an inflatable triangular pillow convenient to fix comprises

The cross section of the triangular pillow is triangular, and an inclined first inclined plane is arranged on the triangular pillow;

a bone headrest provided on the triangular pillow, the bone headrest being disposed on the first inclined surface;

the bone headrest is fixed on one side of the triangular pillow, and the inflatable cushion is arranged on the other side of the triangular pillow;

the triangular pillow is also provided with an air inlet assembly, and the inflatable cushions are provided with one-way valve members associated with the air inlet assembly;

the inflatable cushions are provided with a plurality of inflatable cushions, and the inflatable cushions at least comprise a third air cushion connected with the triangular pillow, a second air cushion communicated with the third air cushion and a first air cushion communicated with the second air cushion; the first air cushion is provided with a plurality of air bags, the air bags are arranged on the same side of the first air cushion, and the air bags can be clamped into a hospital bed guardrail.

The triangular pillow designed by the invention can adapt to body shapes of different patients and widths of different sickbeds through the inflatable cushion arranged on one side of the triangular pillow, the bone pillow can support the waist and the back of the patient, discomfort of the patient is reduced, and meanwhile, the air bag can be clamped on a railing of a guardrail of the sickbed to fix the triangular pillow.

Optionally, two are adjacent link to each other through air inlet unit in order between the gasbag, air inlet unit includes first connecting pipe, the pressure release pipe that links to each other with first connecting pipe in order, the gas transmission hose that is linked together with the pressure release pipe, and wherein first connecting pipe head and tail both ends are arranged respectively in adjacent two in the gasbag, one two first connecting pipes have been arranged respectively at both ends in the gasbag, in this gasbag pressure release pipe one end links to each other with one of them first connecting pipe, and the other end links to each other with the gas transmission hose, and gas transmission hose one end links to each other with the pressure release pipe, and the other end links to each other with another first connecting pipe.

Optionally, the first communicating pipe is provided with a piston, a spring connected with the piston, a fixing part connected with the spring and an air inlet; the pressure relief pipe and the piston are connected through the locking block, the locking block is provided with a locking tenon block which is connected through a spring and arranged oppositely, the pressure relief pipe is further provided with a pressure relief hole, and the pressure relief hole is located below the locking block.

Optionally, still be equipped with on the first connecting pipe and reply the cover, the end of first connecting pipe is equipped with cyclic annular convex part, replies the cover and establishes on cyclic annular convex part, just reply the cover with still link to each other through the spring between the cyclic annular convex part, still be equipped with on the locking tenon piece with reply the inclined plane that replies that the cover is mutually supported.

Optionally, reinforcing ribs are arranged inside the second air cushion, and the reinforcing ribs are arranged along the length direction of the second air cushion and connected with the inner walls of the two sides of the second air cushion.

Optionally, an air pressure monitoring device is further arranged on the second air cushion, the air pressure monitoring device comprises a monitoring tube arranged on the second air cushion, the monitoring tube is provided with a ring protrusion and a measuring rod, and the measuring rod is provided with a piston head.

Optionally, a pulling member is arranged on the piston head, one end of the pulling member is connected with the piston head, and the other end of the pulling member is associated with the air inlet assembly.

Optionally, the air inlet assembly comprises an exhaust pipe, the exhaust pipe comprises an upper exhaust pipe and a lower exhaust pipe, the upper exhaust pipe and the lower exhaust pipe are in threaded connection, a connecting frame is arranged on the lower exhaust pipe, the connecting frame is connected with an exhaust valve core through a spring, and the exhaust valve core is connected with the pulling piece.

Optionally, a pull rope and a pulley are arranged in the third air cushion, the pulley is arranged at the top end of the third air cushion, one end of the pull rope is connected with the bottom end of the third air cushion, and the other end of the pull rope bypasses the pulley and is associated with the air inlet assembly.

Optionally, the triangular pillow, the inflatable cushion and the bone headrest are all wrapped with kits.

In conclusion, the triangular pillow designed by the invention can adapt to the body shapes of different patients and the widths of different sickbeds through the inflatable cushion arranged on one side of the triangular pillow, the bone pillow can support the waist and the back of the patient, the discomfort of the patient is reduced, and meanwhile, the air bag can be clamped on the guardrail of the sickbed to fix the triangular pillow.

Drawings

Fig. 1 is a perspective view of the invention and a hospital bed guard rail.

Fig. 2 is a perspective view of the valve element of fig. 1.

Fig. 3 is a cross-sectional view taken along a broken line a-a in fig. 2.

Figure 4 is another angular perspective view of the valve element of figure 2.

Figure 5 is an elevational view of the valve member of figure 2.

Fig. 6 is a cross-sectional view taken at B-B in fig. 5.

Fig. 7 is a view at a in fig. 6.

Figure 8 is a cross-sectional view of an alternative one-way valve element of figure 1.

Fig. 9 is a front view of fig. 1, facing the first cushion, with one of the bladder outer walls hidden.

Fig. 10 is a cross-sectional view taken at C-C in fig. 9.

Fig. 11 is a top view of fig. 1.

Fig. 12 is a cross-sectional view taken at D-D in fig. 11.

Fig. 13 is an enlarged view of fig. 12 at B.

Fig. 14 is a front view of fig. 1.

Fig. 15 is a cross-sectional view taken at E-E of fig. 14.

Fig. 16 is a cross-sectional view at C in fig. 15.

Fig. 17 is a cross-sectional view at F-F in fig. 11.

Fig. 18 is a schematic view of a portion of the structure of fig. 17.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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.

An inflatable triangular pillow convenient to fix comprises a triangular pillow 10, a bone pillow 20 and an inflatable cushion. The triangular pillow 10 is a medical triangular pillow generally available in the market, and an inclined first inclined plane 101 is formed on the triangular pillow 10 and corresponds to the back of the patient, so that the function of supporting the back of the patient is achieved.

Referring to fig. 1, the bone pillow 20 is disposed on a first slope 101 of the triangular pillow 10, and further, the bone pillow 20 is divided into three regions along a length direction of the triangular pillow 10, which are divided into two end regions and a middle region disposed at the two end regions, wherein the bone pillow 20 is disposed in the divided end regions. Thus, when the affected side is rested on the triangular pillow 10, the bone headrest 20 is opposed to the patient's waist, thus supporting the patient's waist. Further, the triangular pillow 10 is provided with a groove, and the bone pillow 20 is disposed in the groove, so that the fixing effect of the bone pillow 20 can be enhanced.

Referring to fig. 1, when the triangular pillow is used, one end of the triangular pillow needs to face the back of a patient, and the other end of the triangular pillow faces a bed fence, so that the triangular pillow is fixed through the bed fence, and in order to adapt to body types and different bed widths of different patients, the size of an inflatable cushion arranged on the triangular pillow can be adjusted to adapt to different use conditions of the triangular pillow.

Specifically, one end of the triangular pillow 10 is provided with a bone headrest 20, the other end of the triangular pillow is provided with a plurality of inflatable cushions, the number of the inflatable cushions is three, and the inflatable cushions are respectively a first air cushion 1a, a second air cushion 1b and a third air cushion 1c, wherein the second air cushion 1b is arranged between the first air cushion 1a and the third air cushion 1c, and the third air cushion 1c is connected with the triangular pillow 10. The first, second and third air cushions are provided with one-way valve members 11, and are communicated with the air inlet assembly 2 through the one-way valve members 11.

In order to ensure the supporting effect of the three inflatable cushions on the triangular pillow 10, the three inflatable cushions are arranged along the longitudinal direction of the triangular pillow 10, so that the inflatable cushions can abut against the bed rail 20 of the hospital bed.

Referring to fig. 1-2, air can be inflated into the inflatable mattress through the air intake assembly 2 and the one-way valve 11 disposed on the inflatable mattress, so that the size of the inflatable mattress can be adjusted, and meanwhile, the one-way valve 11 is disposed on the inflatable mattress to prevent air leakage from the inflatable mattress.

Referring to fig. 2, in order to prevent the outer surface of the triangular pillow from being contaminated by body fluid and sweat of a patient, a sheath is sleeved on the outer surface of the triangular pillow, and the body of the triangular pillow is protected by the sheath.

In the invention, the surfaces of the triangular pillow 10, the bone pillow 20 and the inflatable cushion are all wrapped with the external member, the external member forms the external surface of the invention, the external member is high-quality Chunyan fabric with good waterproof performance, the fabric is low in price, and the cloth surface is smooth, soft, thick, scratch-resistant and wear-resistant.

Meanwhile, in order to be convenient to change and wash, a zipper is arranged on the sleeve, and after the zipper is unzipped, the triangular pillow 10, the bone pillow 20 and the inflatable cushion inside can be taken out. Further, a zipper 666 is provided on the set, and the zipper 666 is disposed at the bottom end of the triangular pillow 10.

Referring to fig. 1, the air intake assembly 2 includes an air intake bag 21, an air intake main pipe 22, a flow dividing valve 23, and an air intake branch pipe 24, wherein the air intake bag 21 is a common rubber air bag in the shape of a torpedo on the market, an air intake end of the air intake bag 21 is provided with a one-way valve, the air intake bag 21 is connected with the air intake main pipe 22, the air intake main pipe 22 is connected with the flow dividing valve 23, the flow dividing valve 23 is provided with a plurality of connecting ports, the air intake branch pipe 24 is communicated with the flow dividing valve 23 through the connecting ports, and the air intake main pipe can introduce the air in the air intake bag 21 into the air intake branch pipe. The number of inlet manifolds 24 is connected to the one-way valve element 11 so that squeezing the air bag causes the air to be blown into the inflatable cushion.

Referring to fig. 2-4, a one-way valve is connected to the inlet manifold to guide the air from the inlet manifold 24 into the inflatable cushion, and in order to prevent the air from escaping from the inflatable cushion and affecting the sealing performance of the inflatable cushion, the one-way valve needs to be provided with a component capable of guiding air in one way only. Thus, gas can only enter the inflatable cushion and cannot escape from the inflatable cushion.

Further, the one-way valve element comprises a three-way pipe 31, the three-way pipe 31 is a valve element with three pipe joints, specifically, the three-way pipe 31 comprises a one-way valve pipe 301, an exhaust pipe 303 and an air inlet pipe 302, wherein the one-way valve pipe 301 and the air inlet pipe 302 form an air inlet end and an air outlet end of the three-way pipe 31, and the exhaust pipe 303 is arranged on the side surface of the one-way valve pipe 301 and the air inlet pipe 302.

The check valve pipe 301 is connected to the intake branch pipe 24, the intake pipe 302 is connected to the inflatable cushion, and the exhaust pipe 303 is disposed between the check valve pipe 301 and the intake pipe 302.

Referring to fig. 5-6, the check valve further includes a check valve core 32, a first elastic member 33, and a fixing bracket 34, and in order to discharge the gas in the inflatable cushion in time, the check valve core 32 needs to be fixed on the check valve pipe 301.

Specifically, the fixing frame 34 is fixed on the check valve pipe 301, the first elastic member 33 is a spring, the check valve element 32 and the fixing frame 34 are connected through the first elastic member 33, wherein the check valve element 32 is hemispherical, one end of the check valve element is connected with the fixing frame 34 through the elastic member 33, the other end of the check valve element faces the intake branch pipe 24, the end portion of the intake branch pipe 24 is a hard pipe, and the hard pipe is inserted into the check valve pipe 301, wherein a gap exists between the check valve element 32 and the inner wall of the check valve pipe 301, but the check valve element 32 is pressed against the intake branch pipe 24 by the first elastic member 33 to close the check valve pipe 301 and the intake branch pipe 24. When the air pressure in the air inlet branch pipe 24 is increased, the one-way valve core 302 is pushed away, so that the air enters the inflatable cushion, and when the air pressure in the inflatable cushion is increased, the air pressure in the inflatable cushion and the pressure of the spring jointly act to continuously push against the air inlet branch pipe 24, so that the sealing effect is achieved.

Referring to fig. 7, in order to supply air to a desired specific inflatable cushion according to circumstances in actual operation, the check valve pipe 301 needs to be closed, and thus the check valve core needs to be fixed.

Specifically, the check valve pipe 301 is provided with a ring groove 3011, the check valve pipe 301 is further sleeved with a valve sleeve 36, the valve sleeve 36 is sleeved on the check valve pipe 301, a baffle 361 is further arranged along the radial direction of the valve sleeve 36, the baffle 361 can rotate in the ring groove 3011, the baffle 361 is partially inserted into the check valve pipe 301 and abuts against the check valve core 32, and the check valve core 32 is abutted at this time.

Furthermore, the valve core 32 is further provided with a notch 321, the notch 321 and the baffle 361 are mutually matched, when the baffle 361 rotates to the position where the notches 321 are aligned, the check valve core 32 can slide under the extrusion of high air pressure in the air inlet branch pipe 24, at the moment, the check valve core 32 is not abutted with the air inlet branch pipe 24, and then the check valve pipe 301 is communicated with the air inlet branch pipe 24.

Further, referring to fig. 2, the check valve tube 301 is provided with a pressing portion 3012, the valve sleeve 36 is provided with a locking portion 362, and when the locking portion 362 and the pressing portion 3012 are pressed against each other, the blocking plate 361 faces the notch 321.

The three-way pipe 31 is further provided with an exhaust assembly, and the exhaust assembly is arranged on an exhaust pipe 303 of the three-way pipe 31 and comprises an exhaust valve core 41, a second elastic piece 42, a connecting frame 43, a fixed pipe 44, an ejector pin 45 and a top cover 46.

The inner wall of the end part of the exhaust pipe 303 is contracted inwards, the exhaust valve core 41 is arranged in the exhaust pipe 303, the exhaust valve core 41 is integrally hemispherical, one circular arc-shaped end of the exhaust valve core 41 faces the contracted part of the inner wall of the end of the exhaust pipe 303, the other end of the exhaust valve core 41 is connected with the connecting frame 43 through the second elastic piece 42, the second elastic piece 42 is a spring, and the exhaust valve core 41 can seal the exhaust pipe 303 under the pushing of the second elastic piece 42.

The exhaust pipe 303 end portion is sleeved in the fixed pipe 44, specifically, the end of the exhaust pipe 303 is connected with a third elastic element 47, the third elastic element 47 is a spring, one end of the third elastic element 47 is connected with the exhaust pipe 303, the other end of the third elastic element is connected with a top cover 46, the ejector pin 45 is arranged at the circle center position of the top cover 46, the top cover 46 extends downwards to form a side wall 461, a gap exists between the side wall 461 and the fixed pipe 44, the top cover 46 is further pressed downwards, and the exhaust valve core 41 can be ejected through the ejector pin 45 to release gas.

Further, the exhaust valve core 41 is provided with a notch which is matched with the thimble 45.

Further, for convenience of use, the side of the fixing tube 44 is provided with a notch 441, and the user's finger can press the top cover 46 downward along the notch 441.

In the remaining embodiment, referring to fig. 8, in the above-described embodiment, when the user stops pressing the top cover, the deflation is stopped, and for this reason, the following manner may also be used.

The top cover 46a extends downward to form a threaded sleeve 461a, wherein the fixing tube 44a is disposed in the threaded sleeve 461a, and at this time, the fixing tube 44a and the threaded sleeve 461a are screwed together, the top cover 46a can be fixed at a corresponding position by rotating the fixing tube 44a, and the air tightness when the fixing tube 44a and the threaded sleeve 461a are screwed together can be broken by disposing a notch on the fixing tube 44a, so as to exhaust air.

The multifunctional pillow disclosed by the invention achieves multiple purposes, really solves various discomfort of daily triangular pillow padding of a patient, saves time spent by nurses for maintaining effective turning-over positions, reduces the occurrence of clinical infection, avoids pressure injury, and improves the comfort and satisfaction of the patient.

In order to reduce the storage difficulty of the inflatable pillow, a through groove is formed in one side, connected with the inflatable cushions, of the triangular pillow 10, and the three inflatable cushions are arranged in the through groove, so that after the inflatable cushions are completely stored in the through groove, the inlets of the through groove are sealed by the sleeve pieces to store the inflatable cushions.

Specifically, one side of the third air cushion 1c is connected with the inner wall of the through groove, the other side is connected with the second air cushion 1b, the second air cushion 1b is connected with the first air cushion 1a, when the first, second and third air cushions are completely filled with air, the third air cushion 1c is arranged in the through groove and occupies the through groove, and the first air cushion 1a is mutually abutted with the bed fence of the sickbed.

When the triangle pillow is arranged on the bed, the position of the triangle pillow is easy to change due to the wriggling of the patient, so the bone pillow 20 cannot be arranged at a preset position, the comfort of the patient is reduced, and the patient is moved to the corresponding position again, which is time-consuming and labor-consuming.

Referring to fig. 9, a structure capable of automatically fixing a pillow is provided, one side of a first air cushion 1a is connected with a second air cushion 1b, the other side of the first air cushion is connected with a guardrail of a hospital bed, and the currently used guardrails are guardrails with a plurality of longitudinal fixing rods 1a1, so that a plurality of longitudinally arranged air bags are arranged on the side surface of the first air cushion 1a, and the air bags are clamped between two fixing rods 1a1, so that the pillow can be fixed.

Specifically, first air cushion 1a one end and second air cushion 1b link to each other, and the other end is equipped with a plurality of gasbags 2a, and this gasbag 2a communicates with first air cushion 1a each other, so through the subassembly air that gets into first air cushion 1a can directly get into above-mentioned gasbag 2a, so through arranging the gasbag in advance between above-mentioned two dead levers 1a1, can play limiting displacement.

In order to enable the plurality of air bags 2a arranged on the first air cushion 1a to adapt to the distance between two adjacent longitudinal fixing rods 1a1 on guardrails of different sickbeds, the plurality of air bags 2a are sequentially inflated by designing a sequential air inlet device.

Referring to fig. 9, a plurality of longitudinally arranged air bags 2a are arranged at one side of the first air cushion 1a, one of the air bags 2a (i) at the head and tail ends of the plurality of air bags 2a is communicated with the first air cushion 1a, and the other two adjacent air bags 2a are communicated with each other through a sequential air inlet device.

Specifically, the sequential air intake device includes a first communication pipe 21a, a pressure release pipe 22a, and an air delivery hose 23 a. Take a sequential air-intake device between a first air bag 2a (i) communicating with a first air cushion 1a and a second air bag 2a (ii) located on an adjacent side of the first air bag 2a (i) as an example.

One end of the first communicating pipe 21a is communicated with the first air bag 2a (I), the other end extends into the second air bag 2a (II) and is connected with a pressure relief pipe 22a, the pressure relief pipe 22a is connected with an air conveying hose 23a, and then the air conveying hose 23a is communicated with a third air bag 2a (III) arranged on one side of the second air bag 2a (II). This realizes the sequential connection between the multiple airbags 2 a.

In order to sequentially inflate the plurality of longitudinally connected airbags 2a, referring to fig. 10, a piston 211a, a spring and a fixing member 212a are disposed on the first communication pipe 21a, the piston 211a and the fixing member 212a are disposed in the first communication pipe 21a, and the piston 211a and the fixing member 212a are connected by the spring, wherein the distance from the piston 211a to the deflation pipe is less than the distance from the fixing member 212a, the piston 211a and the inner wall of the first communication pipe 21 are attached to each other and seal the first communication pipe 21, the fixing member 212a is a rod body disposed in the first communication pipe 21a, and the fixing member 212 is connected to the inner wall of the first communication pipe 21 without blocking the first communication pipe 21.

The first communication pipe 21a is further provided with an air inlet hole 210a, the air inlet hole 210a is disposed between the fixing part 212a and the end formed by the first communication pipe 21, so that air entering the first communication pipe 21a can enter the airbag 2a disposed in the first communication pipe 21a through the air inlet hole 210a, and the piston 211a can be continuously pushed along with the gas entering the airbag 2a and the rise of air pressure.

The pressure relief tube 22a is connected to the piston 211a through a locking block 221a, the locking block 221a is disposed between the piston 211a and the pressure relief tube 22a, wherein the locking block 221a and the pressure relief tube 22a are sized to fit the inner wall of the first communication tube 21a, the locking block 221 and the pressure relief tube 22a are movable up and down in the first communication tube 21 under the driving of the piston, and the peripheral side wall of the pressure relief tube 22a and the inner wall of the first communication tube 21a fit each other.

The locking block 221a is provided with a hole penetrating through the locking block 221a, two locking tenon blocks 2211a which are connected by a spring and are arranged oppositely are arranged in the hole, under the pushing of the spring, the two locking tenon blocks 2211a can be abutted with the side wall of the first communication pipe 21a, when the locking block 221a is separated from the first communication pipe 21a under the pushing of the piston 211a, the locking tenon blocks 2211a can be mutually supported under the pushing of the spring, and at this time, the locking tenon blocks 2211a can be abutted with the end part of the first communication pipe 21 a.

Furthermore, the pressure relief tube 22a is further provided with a plurality of pressure relief holes 220a, the pressure relief holes 220a are disposed below the locking block 221a, and further, when the locking tenon block 2211a abuts against the end of the first communication tube 21a, the pressure relief holes 220 on the pressure relief tube 22a leak from the first communication tube 21a and are exposed in the airbag 2a disposed in the pressure relief tube 22a, at this time, the gas in the airbag 2a can enter the pressure relief tube 22a through the pressure relief holes 220, and then enter the gas hose 23a through the pressure relief tube 22a, and then enter the next airbag through the gas hose 23 a. In this way, it is possible to achieve that the next airbag 2a is activated in case the air pressure of each airbag 2a rises to a certain level.

Although the above-described structure can complete sequential inflation of the plurality of air bags 2a, a restoring means is absent after all the pressure-relief pipes 22a are disengaged from the first communication pipe 21.

Referring to fig. 10, the first communication pipe 21a is further provided with a restoring sleeve 24a, specifically, the end of the first communication pipe 21a is provided with an annular protrusion 213a, the restoring sleeve 24a is sleeved on the annular protrusion 213a, the end of the annular protrusion 213a is provided with a spring connected to the restoring sleeve 24a, one end of the restoring sleeve 24a is connected to the annular protrusion 213a through a contracting spring, the other end is provided with a blocking portion 241a attached to the pressure relief pipe 22a, and the side of the locking tenon block 2211a opposite to the blocking portion 241a is provided with an inclined restoring slope 2210a, so that the restoring sleeve 24a is driven upwards to press the locking tenon block 2211a into the hole where the locking block 2211a is arranged, and at this time, the piston 211a is pulled into the first communication pipe 21a under the driving of the spring connected to the piston 211a, thereby restoring the air intake device in sequence.

In order to increase the fixing effect of the plurality of air bags 2a, the amount of lateral expansion of each single air bag 2a is reduced as much as possible, so that the deformation of the air bag 2a in the fixing process is prevented by arranging more air bags, and the volume of each air bag 2a is reduced.

For this reason, the first communication pipe 21a and the pressure-relief pipe 22a are longitudinally arranged within the airbag 2a to reduce the influence of the lengths of the first communication pipe 21a and the pressure-relief pipe 22a on the design of the airbag 2a and to ensure a sufficient displacement distance of the pressure-relief pipe 22 a.

In some embodiments, the first air cushion a needs to be matched with a guardrail on a sickbed to prevent the triangular pillow 10 from displacing, and the third air cushion 1c is arranged in a normal state and inevitably bears certain pressure of a patient, so that the unsuitable wall thickness of the first air cushion 1a and the unsuitable wall thickness of the third air cushion 1c are not too thin to ensure the length of the air cushions, therefore, the second air cushion 1b is used as a main extension air cushion in three inflatable cushions, so that the second air cushion 1b is thin in thickness and larger in size, and the distance which can be adapted by the second air cushion 1b can be ensured to be larger under the condition of continuous air blowing.

Since the second air cushion 1b mainly serves to extend the length of the used inflatable cushion from the triangular pillow to the guard rail of the hospital bed, in use, it is necessary that the second air cushion 1b can be inflated in the direction from the third air cushion 1c to the first air cushion 1a while the inflation of the second air cushion 1b to both sides is reduced.

Referring to fig. 15, the second cushion 1b is provided therein with reinforcing ribs 11b, the reinforcing ribs 11b are respectively connected to the inner walls of the two sides of the second cushion 1b, and when the second cushion 1b is inflated and expanded, the reinforcing ribs 11b can restrict the second cushion 1b from expanding towards the two sides on the premise of less influence on the expansion of the second cushion 1b along the direction from the third cushion 1c to the first cushion 1 a.

Since the second air mattress 1b is made thin, it is necessary to prevent the air pressure in the second air mattress 1b from being excessively large, and thus, an air pressure monitoring device is provided.

Referring to fig. 11 to 13, there is provided an air pressure monitoring apparatus, wherein a monitoring tube 21b is disposed on a second air cushion 1b, one end of the monitoring tube 21b is communicated with the second air cushion 1b, the other end is provided with a circular protrusion 211b, and a measuring rod 22b is disposed in the monitoring tube 21b, one end of the measuring rod 22b is provided with a piston head 221b, the other end penetrates through the circular protrusion 211b and protrudes from the monitoring tube 21b, and the piston head 221b is connected to a spring which is sleeved on the measuring rod 22b and is further connected to the circular protrusion 211b, so that when the air pressure in the second air cushion 1b increases, the measuring rod 22b will protrude from the monitoring tube 21b under the extrusion of the air pressure, and thus, the air pressure in the second air cushion 1b can be monitored by monitoring the amount of the protrusion of the monitoring tube 21 b.

In order to further ensure the safety of the second air cushion 1b and reduce the risk of explosion of the second air cushion 1b, it is necessary to design a pressure relief device to partially exhaust the air in the second air cushion 1b when the air pressure in the second air cushion 1b reaches a certain amount.

Referring to fig. 13-16, in some embodiments, a pressure relief structure is provided to automatically relieve the pressure of the second air cushion 1b as follows.

Further, the piston head 221b is provided with a pull member 2211b, the pull member 2211b may be a string or a steel wire, and further, the pull member 2211b is further connected to the air release valve core 41 (not shown in the figure), so that when the air pressure in the second air cushion 1b is increased to push the piston head 221b to move upward, the piston head 221b pulls the air release valve core 41 through the pull member 2211b, thereby completing the air release.

Referring to fig. 16, in order to adjust the pressure relief threshold of the second air cushion 1b, the structure of the exhaust pipe 303 is also modified, and a pressure relief threshold adjustment mechanism is provided.

Specifically, the exhaust pipe 303 is divided into an upper exhaust pipe 3031a and a lower exhaust pipe 3032a, wherein the upper exhaust pipe 3031a and the lower exhaust pipe 3032a are screwed with each other, the distance between the upper exhaust pipe 3031a and the lower exhaust pipe 3032a can be changed by rotating the upper exhaust pipe 3031a, further, the connecting frame 43b is arranged at the tail end of the lower exhaust pipe 3032a, and the connecting frame 43b is centrally provided with a hole for the pull member 2211b to pass through, so that the pull member 2211b can pass through the hole to be connected with the exhaust valve core 41 b.

Further, the upper exhaust pipe 3031a is formed by integrating the upper end portion of the exhaust pipe 303 and the fixing pipe 44, so that the upper exhaust pipe 3031a can form a first sealing stop portion 10c abutting against the inner wall of the lower exhaust pipe 3032a and a second sealing stop portion 20c abutting against the outer circumferential wall of the lower exhaust pipe 3032 a. To ensure the tightness.

When the deflation threshold of the second air cushion 1b needs to be adjusted, by changing the distance between the upper exhaust pipe 3031a and the lower exhaust pipe 3032a, even if the length of the pull piece 2211b is constant, and the distance between the upper exhaust pipe 3031a and the lower exhaust pipe 3032a is reduced, the piston head 221b needs to be lifted by a larger distance to pull the air vent valve core 41.

The third air cushion 1c is mainly used for being arranged in the through groove and bearing partial gravity of a patient, and because of the weight of the patient, in actual work, the third air cushion 1c is injected with fuller air to prevent the third air cushion 1c from deforming, but in actual use, the third air cushion 1c is easy to expand too much, and further the third air cushion 1c is difficult to keep flat.

Referring to fig. 17, a pull rope 11c is provided in the third air cushion 1c, the pull rope 11c is connected to the bottom end of the third air cushion 1c, and the other end of the third air cushion passes around the pulley 12c and is connected to an exhaust valve core 41 in the exhaust pipe (not shown), wherein the pulley 12c is connected to the upper end of the third air cushion 1c, so that when gas continuously enters the third air cushion 1c, the distance between the upper end surface and the lower end surface of the third air cushion 1c will increase, and the end surface of the triangular pillow 10 will swell, and the pulley 12c will pull the pull rope 11c during the upward movement to guide the pull rope to pull the exhaust valve core, so as to achieve deflation.

Further, the pulling rope 11c is a commercially available rope having no elasticity, and the structure inside the exhaust pipe 303 associated with the pulling rope 11c is the same as the pressure relief mechanism and the threshold value adjusting mechanism described above.

In this way, before the third air cushion 1c is inflated, the threshold value adjusting mechanism associated with the pulling rope 11c is adjusted to the state that the distance between the upper exhaust pipe 3031a and the lower exhaust pipe 3032a is shortest, so that the distance between the upper end surface and the lower end surface of the third air cushion 1c is the largest, then after the patient walks onto the triangular pillow 10, the weight of the patient presses the third air cushion 1c downwards, at the moment, the threshold value adjusting mechanism associated with the pulling rope 11c is adjusted to the state that the distance between the upper exhaust pipe 3031a and the lower exhaust pipe 3032a is the largest, at the moment, the upper end of the third air cushion 1c is adjusted to the preset position, which is the height of the through groove, so that the triangular pillow can be ensured to provide a flat plane for the patient.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. 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.

Claims

1. An inflatable triangular pillow convenient to fix is characterized by comprising

2. The inflatable triangular pillow convenient to fix as claimed in claim 1, wherein two adjacent air bags are connected through a sequential air inlet device, the sequential air inlet device comprises a first communication pipe, a pressure release pipe connected with the first communication pipe, and an air hose connected with the pressure release pipe, wherein the first communication pipe is respectively arranged in the two adjacent air bags at the head end and the tail end, two first communication pipes are respectively arranged at the two ends in one air bag, one end of the pressure release pipe in the air bag is connected with one of the first communication pipes, the other end of the pressure release pipe is connected with the air hose, one end of the air hose is connected with the pressure release pipe, and the other end of the air hose is connected with the other first communication pipe.

3. The conveniently-fixed inflatable triangular pillow according to claim 2, wherein the first communication pipe is provided with a piston, a spring connected with the piston, a fixing part connected with the spring and an air inlet hole; the pressure relief pipe and the piston are connected through the locking block, the locking block is provided with a locking tenon block which is connected through a spring and arranged oppositely, the pressure relief pipe is further provided with a pressure relief hole, and the pressure relief hole is located below the locking block.

4. The inflatable triangular pillow convenient to fix as claimed in claim 3, wherein the first communication pipe is further provided with a return sleeve, the end of the first communication pipe is provided with an annular protrusion, the return sleeve is sleeved on the annular protrusion, the return sleeve and the annular protrusion are further connected through a spring, and the locking tenon block is further provided with a return inclined surface matched with the return sleeve.

5. The inflatable pillow according to claim 1, wherein the second cushion has reinforcing ribs inside, and the reinforcing ribs are disposed along the length direction of the second cushion and connected to the inner walls of the second cushion.

6. The inflatable pillow of claim 5, wherein the second cushion further comprises a pressure monitoring device, the pressure monitoring device comprises a monitoring tube disposed on the second cushion, the monitoring tube is provided with a ring and a measuring rod, and the measuring rod is provided with a piston head.

7. The inflatable pillow of claim 6, wherein the piston head has a pull member attached to the piston head at one end and associated with the intake assembly at the other end.

8. The inflatable triangular pillow convenient to fix of claim 7, wherein the air inlet assembly comprises an exhaust pipe, the exhaust pipe comprises an upper exhaust pipe and a lower exhaust pipe, the upper exhaust pipe and the lower exhaust pipe are in threaded connection, a connecting frame is arranged on the lower exhaust pipe, the connecting frame is connected with an exhaust valve core through a spring, and the exhaust valve core is connected with the pull piece.

9. The inflatable pillow of claim 1, wherein the third cushion has a pull cord and a pulley, the pulley is disposed at a top end of the third cushion, one end of the pull cord is connected to a bottom end of the third cushion, and the other end of the pull cord is connected to the air inlet assembly by passing around the pulley.

10. The inflatable pillow of claim 1, wherein the triangular pillow, the inflatable cushion and the bone pillow are wrapped with a sleeve.