CN115154103B - Bed cover for supervising turn-over - Google Patents

Abstract

The present invention discloses a bed cover for supervising turning over, comprising: a bed cover body and a light-transmitting plastic shell, a water storage chamber is arranged inside the bed cover body, and the water storage chamber is filled with distilled water, an isolation strip is arranged inside the water storage chamber, a green light and a red light are respectively installed on the surface of the bed cover body, a mechanical box is connected to one side of the bed cover body, a power distribution mechanism is installed inside the mechanical box, a piston cylinder is fixedly connected inside the mechanical box, a jog switch is installed inside the mechanical box, and the jog switch is electrically connected to the power distribution mechanism. By setting the bed cover body, green light, red light, power distribution mechanism and piston cylinder, the edge light can change color after the bed cover body is pressed for more than a set period of time without moving, so that nursing staff or family members can observe and supervise long-term bedridden patients to turn over on time to prevent pressure sores.

Description

A bed cover for guiding turning over

Technical Field

The invention relates to the technical field of medical care, in particular to a bed cover for supervising turning over.

Background technique

Nursing is an applied science, which is divided into home care and paid care. Paid care must be carried out in accordance with the relevant provisions of laws and regulations stipulated by the Ministry of Health, the National Health Commission, and the Ministry of Medical Administration to carry out corresponding nursing projects, and complete basic or routine care in an organized, purposeful and planned manner. Observe and understand the patient's basic body weight, monitor or obtain condition data according to changes in the condition, cooperate with doctors to complete the treatment of patients, strengthen infusion inspections and education, handle medical disputes in a timely manner, and prevent the occurrence of medical accidents.

Pressure sores, also known as pressure injuries, are caused by long-term pressure on local tissues of the body, which leads to blood circulation disorders and nutritional deficiencies, resulting in soft tissue ulceration and necrosis. For patients who have been bedridden for a long time, if the local tissues are continuously compressed for several hours, the risk of pressure injuries is high. "Prevention is better than cure", and preventing pressure injuries has always been an important topic in nursing work. The most effective way is to encourage and assist bedridden patients to turn over, so that the compressed parts can be alternately relieved of pressure. Generally, they turn over once every one to four hours, and the frequency of turning over is selected according to the individual situation of the patient. In clinical work, nursing staff usually set up a turning card at the head of the patient's bed to record the nurse's patrol time and the patient's position, which is used to supervise or help patients turn over on time. However, the turning card is difficult to actively play the role of prompting turning over. The compressed skin becomes red and ulcerated due to failure to relieve pressure on time, resulting in pressure injuries, increasing the patient's pain and hospitalization costs, and even prolonging hospitalization time.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a supervision turning bed cover to solve the problems mentioned in the above background.

The present invention provides the following technical solutions: a supervised turning bed cover, comprising: a bed cover body and a translucent plastic shell, a water storage chamber is arranged inside the bed cover body, and the interior of the water storage chamber is filled with distilled water, an isolation strip is arranged inside the water storage chamber, a green light and a red light are respectively installed on the surface of the bed cover body, a mechanical box is connected to one side of the bed cover body, a power distribution mechanism is installed inside the mechanical box, a piston cylinder is connected to the interior of the mechanical box, a moment switch is installed inside the mechanical box, and the moment switch is electrically connected to the power distribution mechanism.

Preferably, the outer wall of the piston cylinder is fixedly connected to the inner wall of the bed cover body, and one end of the piston cylinder is communicated with the interior of the water storage cavity.

Preferably, the inner wall of the piston cylinder is slidably connected to a piston, and one end of the piston away from the bed cover body is connected to a piston rod, and the outer wall of the piston rod is slidably connected to the inner wall of the mechanism box.

Preferably, one end of the piston cylinder away from the bed cover body is connected to a limiting ring, and the inner wall of the limiting ring is slidably connected to the outer wall of the piston rod, and exhaust holes are formed through both sides of the limiting ring.

Preferably, a return spring is movably sleeved on the outer wall of the piston rod, and one end of the return spring is movably connected to a side of the piston away from the bed cover body, and the other end of the return spring is movably connected to a side of the limit ring close to the piston.

Preferably, a wave block is fixedly sleeved on the outer wall of the piston rod.

Preferably, the number of the green lights and the number of the red lights are both multiple, and the multiple green lights and red lights are staggeredly distributed.

Preferably, the power distribution mechanism includes a main switch, a reset switch, a relay and a time relay, the normally closed contacts of the reset switch, the momentary switch and the time relay and the coil of the relay are connected in series to form a first branch, the momentary switch is connected in parallel with a normally open contact of the relay, the coil of the time relay and a normally open contact of the relay are connected in series to form a second branch, each of the red lights is connected in series with a normally closed contact of the relay to form a third branch, each of the green lights is connected in series with a normally open contact of the relay to form a fourth branch, the first branch, the second branch, the third branch and the fourth branch are connected in parallel to each other and are electrically connected to the main switch.

Preferably, the conversion mechanism includes a carrying box, a water pipe, a ball valve, a sponge, a partition, an elastic balloon, a push plate, a telescopic rod and a push rod motor. The carrying box is placed on the ground, the interior of the water storage chamber is filled with sponge, the outer side of one end of the mechanical box close to the bed cover body is connected to a partition, the outer wall of the partition is provided with a plurality of through holes, the inner wall of the bed cover body is inserted and connected with a water pipe, the inner wall of the water pipe is provided with a ball valve, one end of the water pipe is connected to an elastic balloon, the inner bottom end of the carrying box is connected to the push rod motor, the output end of the push rod motor is connected to the telescopic rod, the upper end of the telescopic rod is connected to the push plate, the elastic balloon is in contact with the top of the push plate, and the outer wall of the water pipe passes through the upper end of the carrying box.

Preferably, the adjustment mechanism comprises a baffle plate, a circular hole, a circular tube, a magnifying glass, a connecting hole, a limit tooth groove, a connecting rod, a limit gear, a fixed plate, a placement groove, a limit spring, a guide rod and a limit plate, the outer wall of the baffle plate passes through the light-transmitting plastic shell, the outer wall of the baffle plate is provided with a pull plate, the outer surface of the baffle plate is provided with a plurality of circular holes, the inner walls of the circular holes are connected with circular tubes, the plurality of circular tubes correspond to the green light and the red light respectively, the circular tubes are located directly above the green light and the red light, a connecting hole is provided at the lower end of the outer wall of the circular tube, the inner wall of the connecting hole is rotatably connected with a connecting rod, the inner wall of the connecting hole is provided with a limit tooth groove, the outer wall of the connecting rod is slidably connected with the limit gear, one end of the connecting rod is connected with a magnifying glass, the diameter of the magnifying glass is equal to the diameter of the circular tube;

The outer wall of the light-transmitting plastic shell is connected to a fixed plate, and the fixed plate is located below the shielding plate. A placement groove is opened at the upper end of the fixed plate, and a guide rod is connected to the inner wall of the placement groove. The outer wall of the guide rod is slidably connected to the limit plate, one end of the limit spring is connected to the placement groove, and the other end of the limit spring is connected to the limit plate.

Compared with the prior art, the present invention has the following beneficial effects:

1. The bed cover for supervising turning over can change color of the edge of the bed cover body after the bed cover body is compressed for more than a set time through the bed cover body, water storage chamber, green light, red light, mechanical box, power distribution mechanism, piston cylinder, inching switch, piston, piston rod, limit ring, reset spring and wave block, so that nursing staff or family members can observe and supervise the patient to turn over to prevent pressure injuries.

2. Open the ball valve. As the patient turns over and is squeezed, water will be squeezed out of the sponge into the water pipe, and then enter into the elastic balloon to be collected. As the water in the sponge gradually decreases, the distance between the upper end of the bed cover body and the mattress decreases. When turning over, the patient can experience the mattress as if it is not covered by the bed cover. This effectively avoids the patient's feeling that the water-containing bed cover is too soft and cannot be tolerated for a long time and refuses to use the bed cover. When selecting the bed cover body, turn on the push rod motor, which will drive the telescopic rod to push the push plate upward, thereby squeezing the elastic balloon so that the elastic balloon squeezes the water into the water storage chamber, which is reabsorbed by the sponge, so that the patient can achieve a comfortable choice of the bed cover body and the mattress.

3. Use the baffle and the round tube so that the green and red lights can only be emitted from the round tube. Point the round tube upwards and rotate the connecting rod to drive the magnifying glass to rotate. Adjust the angle of the magnifying glass so that the green and red lights can be gathered at one point and shine on the ceiling of the ward. This can enhance the brightness of the light, making it easier for nursing staff or family members to observe. It can also reduce the irradiation range of the green and red lights and reduce the impact on other patients.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

Fig. 2 is a top sectional view of the present invention;

FIG3 is a schematic diagram of an explosion structure in a first state of the present invention;

FIG4 is a schematic diagram of the internal explosion structure of the mechanical box of the present invention;

FIG5 is a schematic diagram of the internal explosion structure of the piston cylinder of the present invention;

FIG6 is a circuit diagram of a power distribution mechanism in the present invention;

FIG7 is a schematic diagram of a cross-sectional top view of the structure of the present invention;

FIG8 is a schematic cross-sectional side view of the structure of the present invention;

FIG9 is a schematic diagram of an exploded structure in a second state of the present invention;

FIG10 is a schematic diagram of the structure of the adjustment mechanism of the present invention;

FIG11 is an enlarged schematic diagram of the structure at A in FIG7 ;

FIG12 is an enlarged schematic diagram of the structure at B in FIG7;

FIG13 is an enlarged schematic diagram of the structure at C in FIG7;

FIG. 14 is an enlarged structural schematic diagram of point D in FIG. 10 .

In the figure: 1, bed cover body; 2, light-transmitting plastic shell; 3, water storage chamber; 4, isolation strip; 5, green light; 6, red light; 7, mechanical box; 8, power distribution mechanism; 801, main switch; 802, reset switch; 803, relay; 804, time relay; 9, piston cylinder; 10, inching switch; 11, piston; 12, piston rod; 13, limit ring; 14, reset spring; 15, wave block; 16, conversion mechanism; 1601, carrying box; 1602, water pipe; 1603, ball valve; 1604, sponge; 1605, partition; 1606, elastic balloon; 1607, push plate; 1608, telescopic rod; 1609, push rod motor; 17, adjustment mechanism; 1701, shielding plate; 1702, round hole; 1703, round tube; 1704, magnifying glass; 1705, connecting hole; 1706, limit tooth groove; 1707, connecting rod; 1708, limit gear; 1709, fixed plate; 1710, placement slot; 1711, limit spring; 1712, guide rod; 1713, limit plate.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Please refer to Figures 1-14, a bed cover for supervising turning over comprises: a bed cover body 1 and a translucent plastic shell 2, a water storage chamber 3 is arranged inside the bed cover body 1, and the water storage chamber 3 is filled with distilled water, an isolation strip 4 is arranged inside the water storage chamber 3, a green light 5 and a red light 6 are respectively installed on the surface of the bed cover body 1, a mechanical box 7 is connected to one side of the bed cover body 1, a power distribution mechanism 8 is installed inside the mechanical box 7, a piston cylinder 9 is connected to the mechanical box 7, a jog switch 10 is installed inside the mechanical box 7, and the jog switch 10 is electrically connected to the power distribution mechanism 8, through the arranged bed cover body 1, water storage chamber 3, green light 5, red light 6, mechanical box 7, power distribution mechanism 8, piston cylinder 9, jog switch 10, piston 11, piston rod 12, limit ring 13, reset spring 14 and wave block 15, the edge of the bed cover body 1 can be discolored after the pressure time exceeds the specified period, so that nursing staff or family members can observe and supervise the patient to turn over to prevent pressure injuries. The outer wall of the piston cylinder 9 is fixedly connected to the inner wall of the bed cover body 1, and one end of the piston cylinder 9 is connected to the inside of the water storage chamber 3, so as to convert the pressure signal into a mechanical signal.

The inner wall of the piston cylinder 9 is slidably connected with a piston 11, and the end of the piston 11 away from the bed cover body 1 is connected with a piston rod 12, and the outer wall of the piston rod 12 is slidably connected to the inner wall of the mechanism box 7, so as to prevent water leakage while the piston 11 moves.

The end of the piston cylinder 9 away from the bed cover body 1 is connected to a limit ring 13, and the inner wall of the limit ring 13 is slidably connected to the outer wall of the piston rod 12, and exhaust holes are opened on both sides of the limit ring 13 to facilitate air circulation inside the piston cylinder 9 and improve the smoothness of the piston 11.

A return spring 14 is movably sleeved on the outer wall of the piston rod 12, and one end of the return spring 14 is movably connected to the side of the piston 11 away from the bed cover body 1, and the other end of the return spring 14 is movably connected to the side of the limit ring 13 close to the piston 11, so that the return spring 14 can be used to push the piston 11 to reset.

The outer wall of the piston rod 12 is fixedly sleeved with a wave block 15 so that the wave block 15 can trigger the inching switch 10 when it moves back and forth.

The number of green lights 5 and the number of red lights 6 are both multiple, and the multiple green lights 5 and red lights 6 are staggered so that they can light up in different combinations to remind medical staff in different time periods.

The power distribution mechanism 8 includes a main switch 801, a reset switch 802, a relay 803 and a time relay 804. The reset switch 802, the momentary switch 10 and the normally closed contacts of the time relay 804 and the coil of the relay 803 are connected in series to form a first branch. The momentary switch 10 is connected in parallel with a normally open contact of the relay 803. The coil of the time relay 804 and a normally open contact of the relay 803 are connected in series to form a second branch. Each red light 6 is connected in series with a normally closed contact of the relay 803 to form a third branch. Each green light 5 is connected in series with a normally open contact of the relay 803 to form a fourth branch. The first branch, the second branch, the third branch and the fourth branch are connected in parallel to each other and are electrically connected to the main switch 801.

The conversion mechanism 16 includes a carrying box 1601, a water pipe 1602, a ball valve 1603, a sponge 1604, a partition 1605, an elastic balloon 1606, a push plate 1607, a telescopic rod 1608 and a push rod motor 1609. The carrying box 1601 is placed on the ground, the interior of the water storage chamber 3 is filled with sponge 1604, the outer side of the mechanical box 7 close to the bed cover body 1 is connected to the partition 1605, the outer wall of the partition 1605 is provided with a plurality of through holes, and the inner wall of the bed cover body 1 is inserted with a water pipe 1606. 02, a ball valve 1603 is provided on the inner wall of the water pipe 1602, one end of the water pipe 1602 is connected to an elastic balloon 1606, the inner bottom end of the carrying box 1601 is connected to a push rod motor 1609, the model of the push rod motor 1609 is M1, the output end of the push rod motor 1609 is connected to a telescopic rod 1608, the upper end of the telescopic rod 1608 is connected to a push plate 1607, the elastic balloon 1606 is in contact with the top of the push plate 1607, and the outer wall of the water pipe 1602 passes through the upper end of the carrying box 1601.

The adjusting mechanism 17 includes a shielding plate 1701, a circular hole 1702, a circular tube 1703, a magnifying glass 1704, a connecting hole 1705, a limiting tooth groove 1706, a connecting rod 1707, a limiting gear 1708, a fixed plate 1709, a placement groove 1710, a limiting spring 1711, a guide rod 1712 and a limiting plate 1713. The outer wall of the shielding plate 1701 passes through the light-transmitting plastic shell 2, and the outer wall of the shielding plate 1701 is provided with a pull plate. The outer surface of the shielding plate 1701 is provided with a plurality of circular holes 1702, and the inner wall of the circular hole 1702 is connected with A circular tube 1703, wherein the plurality of circular tubes 1703 correspond to the green light 5 and the red light 6 respectively, and the circular tube 1703 is located directly above the green light 5 and the red light 6. A connecting hole 1705 is provided at the lower end of the outer wall of the circular tube 1703, and a connecting rod 1707 is rotatably connected to the inner wall of the connecting hole 1705. A limiting tooth groove 1706 is provided on the inner wall of the connecting hole 1705, and a limiting gear 1708 is slidably connected to the outer wall of the connecting rod 1707. A magnifying glass 1704 is connected to one end of the connecting rod 1707, and the diameter of the magnifying glass 1704 is equal to the diameter of the circular tube 1703;

The outer wall of the light-transmitting plastic shell 2 is connected to a fixed plate 1709, and the fixed plate 1709 is located below the shielding plate 1701. A placement groove 1710 is opened at the upper end of the fixed plate 1709, and the inner wall of the placement groove 1710 is connected to a guide rod 1712. The outer wall of the guide rod 1712 is slidably connected to a limit plate 1713. One end of a limit spring 1711 is connected to the placement groove 1710, and the other end of the limit spring 1711 is connected to the limit plate 1713.

Working principle: when in use, turn the main switch 801 to start the device, place the patient on the surface of the bed cover body 1, and the water storage chamber 3 is squeezed so that the distilled water pushes the piston 11, and the piston 11 drives the piston rod 12 to extend. After the piston rod 12 extends, it drives the wave block 15 to move synchronously. When the wave block 15 moves, it will press the moment switch 10. When the moment switch 10 is pressed, the coil of the relay 803 is energized, the normally open contact of the relay 803 is turned on, and the normally closed contact of the relay 803 is closed, and the self-locking of the relay 803 is realized at the same time. After the normally open contact of the relay 803 is turned on, the coil of the time relay 804 is energized, and the time relay 804 can set and control the circuit connection time. For example, the circuit connection time interval can be set to half an hour, one hour, two hours and four hours, etc., and the time relay 804 starts timing, and the red light 6 is powered off, and the green light 5 is powered on to emit light. If the patient does not turn over within the set time, the time relay The normally closed contact of electrical appliance 804 is triggered to disconnect, so that the circuit of the coil of relay 803 is disconnected, the normally open contact of relay 803 is disconnected, the normally closed contact of relay 803 is turned on, the red light 6 is powered on and illuminated, and the green light 5 is powered off until the medical staff turns the patient over. When the patient turns over, the squeezed area of the water storage chamber 3 changes, so that the distilled water pushes the piston 11 to contract and then extend. The piston rod 12 will drive the wave block 15 to move synchronously when it contracts and extends. When the wave block 15 moves, it will touch the touch switch 10 to restart the circuit. If you turn over in advance within the set time period, you need to press the reset switch 802 before turning over, so that the current of the coil of relay 803 is disconnected, and then the normally open contact of relay 803 is disconnected, and the coil of time relay 804 is powered off and reset, and then the patient is turned over again, so that the water storage chamber 3 is squeezed and the distilled water pushes the piston 11, and then the touch switch 10 is pressed to start the device.

First, the distilled water has filled the sponge 1604 to a saturated state, and the bed cover body 1 is placed on the mattress. By using the partition 1605 and the through hole thereon, when the water storage chamber 3 is squeezed, the sponge 1604 cannot block the end of the mechanical box 7 close to the water storage chamber 3, and the sponge 1604 can still squeeze out the water flow, and the water flow will pass through the through hole to push the piston 11. If the patient lies on the water-containing bed cover body 1 for a long time and feels uncomfortable, at this time, the ball valve 1603 is opened, and as the patient turns over and squeezes his body, water will be squeezed out of the sponge 1604 into the water delivery pipe 1602, and then enter The water in the sponge 1604 gradually decreases, so that the distance between the upper end of the bed cover body 1 and the mattress is reduced, so that the patient can feel as if there is no bed cover covering the mattress, thereby satisfying the patient's choice between the mattress and the water-containing bed cover; when it is necessary to lie on the soft bed cover body 1 again, the push rod motor 1609 is turned on, and the push rod motor 1609 will drive the telescopic rod 1608 to push the push plate 1607 to move upward, thereby squeezing the elastic balloon 1606 so that the elastic balloon 1606 squeezes the water into the water storage chamber 3, and is reabsorbed by the sponge 1604, thereby achieving a comfortable and optimal experience.

When the natural light or the light of indoor fluorescent lamps is strong in the ward during the day, the light emitted by the green lamp 5 and the red lamp 6 will not be obvious, which is inconvenient for nursing staff or family members to observe. At night, the light of the green lamp 5 and the red lamp 6 will illuminate the entire ward, which will affect the rest of other patients. At this time, the elastic force of the limit spring 1711 on the limit plate 1713 is used to limit the position of the baffle plate 1701. When the baffle plate 1701 needs to be pulled out, it is only necessary to pull the limit plate 1713 backwards. The limit plate 1713 squeezes the limit spring 1711, and the baffle plate 1701 can be pulled out. The circular tube 1703 can only emit the light of the green light 5 and the red light 6 from the circular tube 1703. The circular tube 1703 is directed upwards, and the connecting rod 1707 is rotated, and the connecting rod 1707 drives the magnifying glass 1704 to rotate. The angle of the magnifying glass 1704 is adjusted so that the green light 5 and the red light 6 can be gathered at one point and irradiated on the ceiling of the ward. On the one hand, the brightness of the light is enhanced, so that the doctor can observe it easily, and on the other hand, the irradiation range of the green light 5 and the red light 6 can be reduced to reduce the impact on other patients. At this time, the limit gear 1708 is pushed to be inserted into the limit tooth groove 1706 to fix the connecting rod 1707. It is also possible to add an intelligent sensor, electrically connect the intelligent sensor and the green light 5 and the red light 6, use the intelligent sensor to receive the light intensity, and control the green light 5 and the red light 6 according to the light intensity, so as to realize intelligent adjustment of the brightness, thereby further reducing the impact of the light on the people around.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (1)

1. A bed cover for guiding turning over, characterized in that it comprises: a bed cover body (1) and a light-transmitting plastic shell (2), wherein a water storage chamber (3) is arranged inside the bed cover body (1), and the water storage chamber (3) is filled with distilled water, and an isolation strip (4) is arranged inside the water storage chamber (3), and a green light (5) and a red light (6) are respectively installed on the surface of the bed cover body (1), a mechanical box (7) is connected to one side of the bed cover body (1), a power distribution mechanism (8) is installed inside the mechanical box (7), a piston cylinder (9) is connected to the inside of the mechanical box (7), a jog switch (10) is installed inside the mechanical box (7), and the jog switch (10) is electrically connected to the power distribution mechanism (8), a conversion mechanism (16) is arranged on the bed cover body (1), and an adjustment mechanism (17) is arranged inside the light-transmitting plastic shell (2); The outer wall of the piston cylinder (9) is fixedly connected to the inner wall of the bed cover body (1), and one end of the piston cylinder (9) is connected to the interior of the water storage chamber (3); The inner wall of the piston cylinder (9) is slidably connected to a piston (11), and one end of the piston (11) away from the bed cover body (1) is connected to a piston rod (12), and the outer wall of the piston rod (12) is slidably connected to the inner wall of the mechanism box (7); One end of the piston cylinder (9) away from the mattress cover body (1) is connected to a limit ring (13), and the inner wall of the limit ring (13) is slidably connected to the outer wall of the piston rod (12), and exhaust holes are formed through both sides of the limit ring (13); The outer wall of the piston rod (12) is movably sleeved with a return spring (14), and one end of the return spring (14) is movably connected to a side of the piston (11) away from the mattress cover body (1), and the other end of the return spring (14) is movably connected to a side of the limit ring (13) close to the piston (11); A wave block (15) is fixedly sleeved on the outer wall of the piston rod (12); The number of the green lights (5) and the number of the red lights (6) are both multiple, and the multiple green lights (5) and the multiple red lights (6) are staggeredly distributed; The power distribution mechanism (8) comprises a main switch (801), a reset switch (802), a relay (803) and a time relay (804); the reset switch (802), the inching switch (10) and the normally closed contacts of the time relay (804) and the coil of the relay (803) are connected in series to form a first branch; the inching switch (10) is connected in parallel to a normally open contact of the relay (803); the coil of the time relay (804) and a normally open contact of the relay (803) are connected in series to form a second branch; each of the red lights (6) is connected in series to a normally closed contact of the relay (803) to form a third branch; each of the green lights (5) is connected in series to a normally open contact of the relay (803) to form a fourth branch; the first branch, the second branch, the third branch and the fourth branch are connected in parallel to each other and are all electrically connected to the main switch (801); The conversion mechanism (16) comprises a carrying box (1601), a water pipe (1602), a ball valve (1603), a sponge (1604), a partition (1605), an elastic balloon (1606), a push plate (1607), a telescopic rod (1608) and a push rod motor (1609); the carrying box (1601) is placed on the ground; the interior of the water storage chamber (3) is filled with a sponge (1604); the outer side of one end of the mechanical box (7) close to the bed cover body (1) is connected to a partition (1605); the outer wall of the partition (1605) is provided with a plurality of through holes; the inner wall of the bed cover body (1) is inserted into the inner wall of the bed cover body (1). A water pipe (1602) is provided, the inner wall of the water pipe (1602) is provided with a ball valve (1603), one end of the water pipe (1602) is connected to an elastic balloon (1606), the inner bottom end of the carrying box (1601) is connected to a push rod motor (1609), the output end of the push rod motor (1609) is connected to a telescopic rod (1608), the upper end of the telescopic rod (1608) is connected to a push plate (1607), the elastic balloon (1606) is in contact with the top end of the push plate (1607), and the outer wall of the water pipe (1602) passes through the upper end of the carrying box (1601); The adjustment mechanism (17) comprises a shielding plate (1701), a circular hole (1702), a circular tube (1703), a magnifying glass (1704), a connecting hole (1705), a limiting tooth groove (1706), a connecting rod (1707), a limiting gear (1708), a fixed plate (1709), a placement groove (1710), a limiting spring (1711), a guide rod (1712) and a limiting plate (1713); the outer wall of the shielding plate (1701) penetrates the light-transmitting plastic shell (2); the outer wall of the shielding plate (1701) is provided with a pulling plate; the outer surface of the shielding plate (1701) is provided with a plurality of circular holes (1702); the inner walls of the circular holes (1702) are connected to the circular tubes. (1703), a plurality of circular tubes (1703) respectively corresponding to a green light (5) and a red light (6), the circular tubes (1703) being located directly above the green light (5) and the red light (6), a connecting hole (1705) being provided at the lower end of the outer wall of the circular tube (1703), a connecting rod (1707) being rotatably connected to the inner wall of the connecting hole (1705), a limiting tooth groove (1706) being provided on the inner wall of the connecting hole (1705), a limiting gear (1708) being slidably connected to the outer wall of the connecting rod (1707), a magnifying glass (1704) being connected to one end of the connecting rod (1707), the diameter of the magnifying glass (1704) being equal to the diameter of the circular tube (1703); The outer wall of the light-transmitting plastic shell (2) is connected to a fixed plate (1709), the fixed plate (1709) is located below the shielding plate (1701), the upper end of the fixed plate (1709) is provided with a placement groove (1710), the inner wall of the placement groove (1710) is connected to a guide rod (1712), the outer wall of the guide rod (1712) is slidably connected to a limit plate (1713), one end of the limit spring (1711) is connected to the placement groove (1710), and the other end of the limit spring (1711) is connected to the limit plate (1713).