阅读说明：本技术 一种自适应压力缓解老年人多功能床具 (Self-adaptive pressure relief multifunctional bed for old people ) 是由 殷媛媛 陈玉霞 郭勇 骆攀攀 石允娇 任林燕 张锦龙 翁蓓蓓 邬珊珊 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种自适应压力缓解老年人多功能床具,床垫为丝瓜络纤维乳胶复合床垫,且具体放置于自动调节床架上,床垫内设置有用于感知各个位置受力情况的压力传感器,床垫下方的床架上设置有调节压力装置；其中,压力传感器与调节压力装置分别通过信息采集器与主机处理器相连,主机处理器与手机无线相连；当主机处理器通过压力传感器检测到床垫的某个位置压力异常时,主机处理器驱动调节压力装置对相应位置的压力进行调节。本发明中,通过对老年人护理床的床垫、床架均进行设计,多方面地满足老年人的生理活动辅助、自适应压力缓解以及压力监测等护理需要,帮助介助型老人的实现正常生活、健康睡眠。(The invention discloses a multifunctional bedding capable of relieving pressure adaptively for the elderly, wherein a mattress is a loofah sponge fiber latex composite mattress and is specifically placed on an automatic adjusting bed frame, a pressure sensor for sensing the stress condition of each position is arranged in the mattress, and a pressure adjusting device is arranged on the bed frame below the mattress; the pressure sensor and the pressure adjusting device are respectively connected with the host processor through the information collector, and the host processor is wirelessly connected with the mobile phone; when the host processor detects that the pressure at a certain position of the mattress is abnormal through the pressure sensor, the host processor drives the pressure adjusting device to adjust the pressure at the corresponding position. According to the invention, through designing the mattress and the bed frame of the nursing bed for the old, the nursing requirements of the old such as physiological activity assistance, adaptive pressure relief, pressure monitoring and the like are met in many aspects, and the nursing bed helps the assisted old to realize normal life and healthy sleep.)

1. A self-adaptive pressure relief multifunctional bed for the elderly is characterized by comprising an automatic adjustment bed frame (1), a mattress (2), a pressure sensor (3), an information collector (4), a host processor (5) and a mobile phone (6);

the mattress (2) is a loofah sponge fiber latex composite mattress and is specifically placed on the automatic adjusting bed frame (1), a pressure sensor (3) used for sensing stress conditions of all positions is arranged in the mattress (2), and a pressure adjusting device is arranged on the bed frame below the mattress (2); the pressure sensor (3) and the pressure adjusting device are respectively connected with the host processor (5) through the information collector (4), and the host processor (5) is wirelessly connected with the mobile phone (6); when the host processor (5) detects that the pressure at a certain position of the mattress (2) is abnormal through the pressure sensor (3), the host processor (5) drives the pressure regulating device to regulate the pressure at the corresponding position.

2. The multifunctional self-adaptive pressure relieving bedding for the elderly as claimed in claim 1, wherein the automatic adjusting bed frame (1) comprises a foldable bed frame (12), a bed front plate (13), a left side plate and a right side plate (14), a left foldable safety guardrail and a right foldable safety guardrail (15), a cross brace (16), a bed plate (112) and a bed tail plate (18), wherein the cross brace (16) is arranged between the left side plate and the right side plate (14), and the left foldable safety guardrail and the right foldable safety guardrail (15) are fixed at the upper ends of the left side plate and the right side plate (14); a bed body frame (11) is formed among the bed front plate (13), the left and right side plates (14), the left and right foldable safety guardrails (15), the cross braces (16) and the bed tail plate (18), and a bed board (112) and a foldable bed skeleton (12) are installed and matched on the bed body frame (11); the bottom of the foldable bed frame (12) is connected with a braking device (17), and the foldable bed frame (12) is foldable relative to the bed body frame (11) under the driving of the braking device (17).

3. The multifunctional self-adaptive pressure relieving bedding for the elderly as claimed in claim 2, wherein the foldable bed skeleton (12) comprises a skeleton support frame (122) and a plurality of unit skeleton rows (121) arranged on the skeleton support frame (122) in parallel in two rows; each unit row framework (121) comprises a round bamboo elastic sheet (1211), a sleeve head (1212) for fixing the round bamboo elastic sheet (1211) and a pressure adjusting device connected with the sleeve head (1212); the pressure adjusting device is used for adjusting the pressure when the surface of the round bamboo elastic sheet (1211) is stressed.

4. The multifunctional adaptive pressure relieving bedding for the elderly as claimed in claim 3, wherein the round bamboo elastic sheet (1211) on each unit row skeleton (121) is a double-row round bamboo elastic sheet (1211) with a two-layer or three-layer structure, and a pair of opposite sleeve heads (1212) are fitted at two ends of the double-row round bamboo elastic sheet (1211) with the two-layer or three-layer structure; two parallel hole grooves are formed in the inner side end of the sleeve head (1212), the forming height of each hole groove corresponds to the thickness of the three layers of round bamboo elastic pieces (1211), a pair of dovetail grooves are formed in the bottom ends of the two side walls of each hole groove respectively, and the dovetail grooves are matched with a cushion block (1212a) with a dovetail joint.

5. The adaptive pressure relieving elderly multifunctional bedding of claim 3, wherein the pressure regulating device comprises a support base (1216), a support bar (1213), a slider (1214), a fixed block (1215), and an electrically telescopic hydraulic rod (1217);

the supporting base (1216) is arranged below the round bamboo elastic sheet (1211), a fixing block (1215) and a sliding block (1214) are sleeved on the supporting base (1216), the fixing block (1215) is fixedly connected with the supporting base (1216), and the sliding block (1214) is connected with the supporting base (1216) in a sliding mode; the four support rods (1213) are arranged in pairs and are respectively arranged on two sides of the support base (1216) in parallel; one end of the supporting rod (1213) is fixed to the connecting body (1212b), and is connected with the sleeve head (1212) above the connecting body (1212b), the other end of the supporting rod (1213) extends towards the direction close to the middle of the supporting base (1216), and traverses the circular holes on the sliding block (1214) and the fixed block (1215) in sequence, and is fixedly connected with the fixed block (1215); wherein the slider (1214) slides on a support bar (1213) and a support base (1216) between the connecting body (1212b) and the fixed block (1215);

one side of a motor of the electric telescopic hydraulic rod (1217) is fixed at the lower part of the fixed block (1215), and one side of a telescopic end of the electric telescopic hydraulic rod (1217) is fixed at the lower part of the sliding block (1214); the sliding block (1214) realizes the sliding on the support rod (1213) and the support base (1216) through the electric telescopic hydraulic rod (1217), and changes the action size of the support rod (1213) through the sliding of the sliding block (1214) on the support rod (1213).

6. The multifunctional self-adaptive pressure relieving bedding for the elderly according to claim 2, wherein the foldable bed skeleton row (12) is sequentially divided into a back support skeleton row (12a), a hip support skeleton row (12b), a leg support skeleton row (12c) and a foot support skeleton row (12d) along the longitudinal direction thereof, and the back support skeleton row (12a), the hip support skeleton row (12b), the leg support skeleton row (12c) and the foot support skeleton row (12d) are hinged with each other; the bottoms of the back supporting row framework (12a) and the leg supporting row framework (12c) are respectively connected with a braking device, and the two parts are folded through the braking devices (17).

7. The multifunctional adaptive pressure relieving bedding for the elderly as claimed in claim 6, wherein each of the braking devices (17) comprises an electric metal push-pull rod (171), two fixing nuts (172), two arc-shaped slideways (173), a support plate (1731), a positioning rod (174) and a motor (175); the positioning rod (174) is transversely arranged at the bottom of the back support skeleton (12 a)/leg support skeleton (12c), the middle of the positioning rod (174) is rotatably connected with an electric metal push-pull rod (171), and two ends of the positioning rod (174) are respectively and fixedly connected with an arc-shaped slideway (173);

the arc-shaped slide way (173) is bent upwards, a support sheet (1731) acting upwards is connected to the top of one end of the arc-shaped slide way (173), and the support sheet (1731) is fixedly connected with a back support skeleton (12 a)/leg support skeleton (12c) above the support sheet; in addition, a sliding rail is further arranged on one side of the arc-shaped sliding rail (173) which deviates from the direction of the positioning rod (174), and a fixing nut (172) is in sliding fit with the sliding rail; the outer end of the fixed nut (172) is fixedly connected with the corresponding bed body frame (11), and the inner end of the fixed nut (172) is movably connected with the slide rail;

the front part of the electric metal push-pull rod (171) is a telescopic end, and the telescopic end is rotatably connected with the middle part of the positioning rod (174); the rear part of the electric metal push-pull rod (171) is connected with a motor (175), and the motor (175) is fixed on the cross brace (16); under the drive of the motor (175), the electric metal push-pull rod (171) drives the arc-shaped slideway (173) to slide on the fixed nut (172).

8. The multifunctional bed tool for relieving pressure of the elderly according to claim 6, further comprising a positioning block (111), wherein the positioning block (111) is made of metal and is distributed at the intersection of the leg supporting skeleton (12c) and the foot supporting skeleton (12d) of the foldable bed skeleton (12), one side of the groove is fixed at the edge of the leg supporting skeleton (12c) by screws, and one side of the groove close to the foot supporting skeleton (12d) is not fixed.

9. The multifunctional self-adaptive pressure relieving bedding for the elderly according to claim 1, wherein the mattress (2) comprises a fabric composite layer (21), an upper bedding layer (22), a bed core (23) and a lower bedding layer (24) from top to bottom; wherein the fabric composite layer (21) is quilted by non-woven fabrics and is used as a wrapping layer of the mattress (2), and the pressure sensor (3) is arranged in the fabric composite layer (21); the bed core (23) is made of hard cut sponge and is used as a supporting layer of the mattress; the upper bedding layer (22) and the lower bedding layer (24) are made of loofah sponge fiber latex composite materials, which are respectively represented as an upper bedding layer (221) made of loofah sponge fiber latex composite materials and a lower bedding layer (241) made of loofah sponge fiber latex composite materials; wherein the thickness of the upper bedding layer (221) made of the loofah sponge fiber latex composite material is larger than that of the lower bedding layer (241) made of the loofah sponge fiber latex composite material, and the density of the upper bedding layer (221) made of the loofah sponge fiber latex composite material is smaller than that of the lower bedding layer (241) made of the loofah sponge fiber latex composite material.

10. The multifunctional adaptive pressure relieving bedding for elderly people according to claim 9, wherein the preparation method of the upper and lower bedding layers (22, 24) comprises the steps of:

(1) cleaning loofah sponge by water and a cleaning agent, removing dirt and impurities on the surface of the loofah sponge, and cleaning the cleaning agent on the surface of the loofah sponge fiber by water; then placing the loofah sponge fiber into a forced air drying oven, continuously drying at 100 ℃ until volatile and easily decomposed components are removed, then crushing the loofah sponge fiber and sieving the crushed loofah sponge fiber with a 60-mesh sieve for later use;

(2) soaking the above processed and sieved retinervus Luffae fructus fiber in sodium hydroxide solution, processing at room temperature for 2 hr, cleaning with distilled water to neutrality, and drying at 70 deg.C for 72 hr to obtain alkali processed retinervus Luffae fructus fiber;

(3) weighing 2g of silane coupling agent, diluting the coupling agent to 1% by using ethanol, mixing the coupling agent and the alkali-treated loofah sponge fiber uniformly under full stirring, and drying the mixture in a drying oven at 100 ℃ for 72 hours to volatilize residual solvent to obtain the loofah sponge fiber treated by the coupling agent;

(4) putting the latex into a barrel, stirring the latex by using ammonia removal equipment to volatilize ammonia gas, and discharging the ammonia gas through an ammonia pumping pipeline until the ammonia content in the natural latex is reduced below a standard to obtain ammonia-removed latex;

(5) preparing a compounding agent:

10% casein solution: weighing the ingredients according to a ratio, adding water into a container with a stirring device, then sequentially adding casein, borax and ammonia water at 50 ℃, heating and stirring until the mixture is completely dissolved to prepare a casein solution;

50% sulphur dispersion: grinding the sulfur horizontal powder in a mortar for later use, and weighing the ingredients according to the proportion; adding water into a container with a stirring device, sequentially adding casein solution, sodium hydroxide solution, dispersing agent NF and sulfur under stirring, and continuously stirring for 5-8h to obtain sulfur dispersion, adjusting the pH value of the dispersion to 10-11, standing for more than 12 h;

the preparation method of 50% foaming agent dispersoid, 50% foaming auxiliary agent dispersoid, 50% accelerator dispersoid, 50% zinc oxide dispersoid, 50% anti-aging agent DNP dispersoid and 50% talcum powder dispersoid is the same as above;

20% sodium fluorosilicate dispersion: grinding sodium fluosilicate powder in a mortar, adding water, and then adjusting the pH value to 6 to obtain a sodium fluosilicate dispersion;

(6) adding 50% of sulfur dispersion, 50% of accelerator dispersion, 50% of zinc oxide dispersion and 50% of antioxidant dispersion compounding agent into the latex together for compounding, stirring while adding, stirring for 20-30 minutes after adding, and standing for later use;

(7) stirring the latex which is kept stand for use in the step (6) before use; adding 2% of 50% foaming agent dispersoid, then sequentially adding 50% of foaming auxiliary agent dispersoid and 50% of talcum powder dispersoid, uniformly mixing, adding 20% of sodium fluosilicate dispersoid and loofah spongeStirring the fiber to gel point, quickly injecting into a mold, and performing gel molding to obtain the fiber with the density of 45kg/m³The foam material of (2) is used as the head part of the pillow; ② respectively adding 3 percent of 50 percent foaming agent dispersoid, then sequentially adding 50 percent of foaming auxiliary agent dispersoid and 50 percent of talcum powder dispersoid, uniformly mixing, then adding 20 percent of sodium fluosilicate dispersoid and melon fiber, stirring to gel point, then quickly injecting and gelling to form, and finally obtaining the product with the density of 40kg/m³The foam material is used as the shoulder part of the pillow;

(8) and cleaning the die, preheating, coating a release agent, and finally demolding to obtain a finished product.

Technical Field

The invention relates to the technical field of intelligent beds, in particular to a self-adaptive pressure-relieving multifunctional bed for the old.

Background

Data survey results of the national statistical institute show that, since 1993, China moves toward a senior society, the aged population is increasing year by year at an incredible speed, and the aged population rate of China is estimated to be as high as 29.8% by 2050. The aging population and the change of the old-age care mode make the daily nursing of the elderly (the elderly whose life activities depend on the help of the armrests, the crutches, the wheel chairs, the lifting facilities, etc., hereinafter referred to as the assisted elderly) in the assisted state increasingly receive the attention and attention of the public, and the product design of the assisted nursing aged also appears endlessly, including the research on the nursing bed of the elderly. Researches show that pressure sores are easily generated if the pressure of a human-bed interface is not timely relieved in the sleeping process, and about 6 million people die from pressure sores and are combined in related literature reports every year, so that when a person uses a bed, the person can use various sleeping behaviors and posture adjustment such as getting up, turning over and the like to avoid the phenomenon that the local part of the body is excessively pressed, and the assisted old people cannot normally complete movement and turning over due to inconvenient actions of the assisted old people, and the disease incidence of the pressure sores can be increased if nursing is not timely and nursing work is not in place. At present, domestic nursing beds generally utilize a bedstead design to help old people turn over in an auxiliary mode so as to relieve the pressure of a human-bed interface, although the method has obvious effect, the method is easy to influence the sleep continuity of the old people, so that the sleep comfort of the old people can be reduced, the nursing pressure of nursing staff is large due to long-term manual operation, and pressure sores can be caused due to unreasonable turn-over time intervals; most of mattress pressure relief designs in the market change the pressed part of a person by utilizing the mode of alternately inflating and deflating the air bag to relieve local pressure, but frequent inflation and deflation also influence the sleep continuity to a certain extent, and the air bag bed has poor air permeability and large hardness after long-time use, and is easy to cause overlarge local pressure of a human body. Therefore, on the premise of not interfering the sleep continuity of the old, the research and design of the bed for the old with adaptive pressure relief is particularly important.

In addition, researches show that the probability of pressure sores of wet skin is 5 times higher than that of dry skin, and the increase of any temperature when tissue ischemia is caused by continuous pressure can increase the easiness of pressure sores generated by the tissue, so that the bed needs good heat removal and humidity elimination performance to timely eliminate moisture and hot air emitted by a person every night so as to keep the bed comfortable and dry, and the breeding of mites and bacteria is avoided by a good human-bed sleeping microenvironment, thereby being beneficial to the sleeping comfort of the human body. The adjustment of the temperature and humidity of the sleep environment in the current market is roughly divided into two directions, one is to rely on an external adjustment mechanism, for example: a temperature and humidity control water supply device is added to regulate the temperature and the humidity, and the regulation mechanism has large capital investment and is difficult to realize the temperature and humidity regulation without interference sleep; and secondly, a high-quality mattress filling material is selected, and the good mattress filling material can automatically adjust the temperature and the humidity inside the mattress to create a good sleeping microenvironment. The common mattress filling materials in the market mainly comprise palm, jute, latex, memory cotton and the like, wherein the palm mattress and the jute mattress have high hardness and are not beneficial to pressure relief of a human-bed interface, while the latex, the memory cotton and other materials have good support property or pressure relief property, but have poor air permeability and poor permeability, cannot meet the requirements of temperature regulation and humidity regulation of the interior of the mattress, and are easy to breed mites and bacteria after long-term use. The loofah sponge is a biomass fiber material with rich resources, light texture, nature, environmental protection and regeneration, has good air permeability, buffering property, moisture absorption and dispersion property, and researches show that the loofah sponge contains substances such as palmitic acid, isopropyl palmitate, squalene and the like, the substances have the functions of sterilization, anti-inflammation, allergy prevention, sleep aiding and the like, and the pure natural biomass loofah sponge fiber (cellulose) is compounded with the latex to prepare the novel plant fiber latex composite material as the mattress filling material, so that the mattress has the excellent characteristics of strong latex support property and good elasticity, meanwhile, the mattress has the characteristics of high air permeability, high moisture absorption and dispersion property, antibiosis, mite prevention and the like of the loofah sponge, so that the mattress can provide more reasonable support, the temperature and humidity inside the mattress can be automatically adjusted, a good sleeping microenvironment is created, and the pressure sore is effectively prevented.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a self-adaptive pressure relief multifunctional bed for the aged, which is mainly used for the assisted aged, and can effectively prevent the aged from pressure sores by carrying out non-interference pressure monitoring and self-adaptive pressure relief on the human-bed interface pressure, provide a pressure detection report and provide suggestions for the sleep problems of the aged; in addition, the bed can help the old to self-adaptively complete the functions of assisting in lifting the back, getting up, getting out of bed and the like, fully meets the daily nursing requirement of the assisted old, and improves the nursing quality.

The invention adopts the following technical scheme to solve the technical problems:

a self-adaptive pressure relief multifunctional bed for the old comprises an automatic adjusting bed frame, a mattress, a pressure sensor, an information collector, a host processor and a mobile phone;

the mattress is a loofah sponge fiber latex composite mattress and is particularly placed on an automatic adjusting bed frame, a pressure sensor used for sensing stress conditions of all positions is arranged in the mattress, and a pressure adjusting device is arranged on the bed frame below the mattress; the pressure sensor and the pressure adjusting device are respectively connected with the host processor through the information collector, and the host processor is wirelessly connected with the mobile phone; when the host processor detects that the pressure at a certain position of the mattress is abnormal through the pressure sensor, the host processor drives the pressure adjusting device to adjust the pressure at the corresponding position.

As one of the preferable modes of the invention, the automatic adjusting bed frame comprises a foldable bed frame, a bed front plate, a left side plate, a right side plate, a left foldable safety guardrail, a right foldable safety guardrail, a cross brace, a bed plate and a bed tail plate, wherein the cross brace is arranged between the left side plate and the right side plate, and the left foldable safety guardrail and the right foldable safety guardrail are fixed at the upper ends of the left side plate and the right side plate; bed body frames are formed among the bed front plate, the left side plate, the right side plate, the left foldable safety guardrail, the right foldable safety guardrail, the cross braces and the bed tail plate, and bed plates and foldable bed row frameworks are installed and matched on the bed body frames; the bottom of the foldable bed frame is connected with a braking device, and the foldable bed frame is foldable relative to the bed body frame under the driving of the braking device.

As one of the preferable modes of the invention, the foldable bed frame comprises a frame support frame and a plurality of unit frames arranged on the frame support frame in parallel in two rows, wherein each unit frame is 725mm long and 80mm wide; each unit row framework comprises a round bamboo elastic sheet, a sleeve head for fixing the round bamboo elastic sheet and a pressure adjusting device connected with the sleeve head; the pressure adjusting device is used for adjusting the pressure when the surface of the round bamboo elastic sheet is stressed.

As one of the preferable modes of the invention, the round bamboo elastic sheet on each unit row skeleton is specifically a double-row round bamboo elastic sheet with a two-layer or three-layer structure, and two ends of the double-row round bamboo elastic sheet with the two-layer or three-layer structure are matched with a pair of opposite sleeve heads; two parallel hole grooves are formed in the inner side end of the sleeve head respectively, the forming height of each hole groove corresponds to the thickness of the three layers of round bamboo elastic pieces, a pair of dovetail grooves are formed in the bottom ends of the two side walls of each hole groove respectively, and the dovetail grooves are matched with a cushion block with a dovetail joint.

As one of the preferable modes of the invention, the pressure adjusting device comprises a supporting base, a supporting rod, a sliding block, a fixed block and an electric telescopic hydraulic rod;

the supporting base is arranged below the round bamboo elastic sheet, a fixed block and a sliding block are sleeved on the supporting base, the fixed block is fixedly connected with the supporting base, and the sliding block is connected with the supporting base in a sliding mode; the four supporting rods are arranged in a group of two supporting rods and are respectively arranged on two sides of the supporting base in parallel; one end of the supporting rod is fixed on the connecting body and is connected with the sleeve head above the connecting body through the connecting body, and the other end of the supporting rod extends towards the direction close to the middle part of the supporting base, sequentially traverses the circular holes on the sliding block and the fixed block and is fixedly connected with the fixed block; the sliding block slides on the supporting rod and the supporting base between the connecting body and the fixed block;

one side of a motor of the electric telescopic hydraulic rod is fixed at the lower part of the fixed block, and one side of a telescopic end of the electric telescopic hydraulic rod is fixed at the lower part of the sliding block; the slider realizes the slip on bracing piece and support base through electronic flexible hydraulic stem to through the slip of slider on the bracing piece, change the effect size of bracing piece.

As one of the preferable modes of the invention, the foldable bed skeleton is sequentially divided into a back supporting skeleton, a hip supporting skeleton, a leg supporting skeleton and a foot supporting skeleton along the longitudinal direction, and every two adjacent skeletons of the back supporting skeleton, the hip supporting skeleton, the leg supporting skeleton and the foot supporting skeleton are hinged; the bottom of the back supporting skeleton frame and the bottom of the leg supporting skeleton frame are respectively connected with a braking device, and the back supporting skeleton frame and the leg supporting skeleton frame are folded through the braking devices.

As one of the preferable modes of the invention, each braking device respectively comprises an electric metal push-pull rod, two fixing nuts, two arc-shaped slideways, a supporting sheet, a positioning rod and a motor; the positioning rod is transversely arranged at the bottom of the back support skeleton frame/leg support skeleton frame, the middle part of the positioning rod is rotatably connected with an electric metal push-pull rod, and two ends of the positioning rod are respectively and fixedly connected with an arc-shaped slideway;

the arc-shaped slide way is bent upwards for forming, the top of one end of the arc-shaped slide way is connected with a support sheet acting upwards, and the support sheet is fixedly connected with a back support skeleton/leg support skeleton above the support sheet; in addition, a sliding rail is further arranged on one side, away from the direction of the positioning rod, of the arc-shaped sliding rail, and a fixing nut is in sliding fit with the sliding rail; the outer end of the fixing nut is fixedly connected with the corresponding bed body frame, and the inner end of the fixing nut is movably connected with the slide rail;

the front part of the electric metal push-pull rod is a telescopic end, and the telescopic end is rotatably connected with the middle part of the positioning rod; the rear part of the electric metal push-pull rod is connected with a motor, and the motor is fixed on the cross brace; under the drive of the motor, the electric metal push-pull rod drives the arc-shaped slideway to slide on the fixing nut.

As one of the preferable modes of the invention, the folding bed frame further comprises a positioning block, wherein the positioning block is in a groove shape made of metal and is distributed at the intersection of the leg supporting frame and the foot supporting frame of the folding bed frame, one side of the groove is fixed on the edge of the leg supporting frame by screws, and one side close to the foot supporting frame is not fixed.

Furthermore, the multifunctional bed further comprises insulated silent universal wheels and insulated silent telescopic universal wheels of the bed frame; the bed frame is provided with insulated silent universal wheels arranged at the bottoms of the left side plate and the right side plate, and the insulated silent telescopic universal wheels are arranged at the bottom of the bed tail plate.

In a preferred mode of the invention, the mattress sequentially comprises a fabric composite layer, an upper bedding layer, a bed core and a lower bedding layer from top to bottom; the fabric composite layer is formed by quilting non-woven fabrics and serves as a mattress wrapping layer, and the pressure sensor is arranged in the fabric composite layer; the bed core is made of hard cut sponge and is used as a supporting layer of the mattress; the upper bedding layer and the lower bedding layer are made of loofah sponge fiber latex composite materials, and are respectively represented as an upper bedding layer made of loofah sponge fiber latex composite materials and a lower bedding layer made of loofah sponge fiber latex composite materials; wherein, the thickness of the upper bedding layer made of the loofah sponge fiber latex composite material is larger than that of the lower bedding layer made of the loofah sponge fiber latex composite material, and the density of the upper bedding layer made of the loofah sponge fiber latex composite material is smaller than that of the lower bedding layer made of the loofah sponge fiber latex composite material.

As one of preferable modes of the present invention, the method for preparing the upper and lower mats includes the steps of:

(1) cleaning loofah sponge by water and a cleaning agent, removing dirt and impurities on the surface of the loofah sponge, and cleaning the cleaning agent on the surface of the loofah sponge fiber by water; then placing the loofah sponge fiber into a forced air drying oven, continuously drying at 100 ℃ until volatile and easily decomposed components are removed, then crushing the loofah sponge fiber and sieving the crushed loofah sponge fiber with a 60-mesh sieve for later use;

(2) soaking the above processed and sieved retinervus Luffae fructus fiber in sodium hydroxide solution, processing at room temperature for 2 hr, cleaning with distilled water to neutrality, and drying at 70 deg.C for 72 hr to obtain alkali processed retinervus Luffae fructus fiber;

(3) weighing 2g of silane coupling agent, diluting the coupling agent to 1% by using ethanol, mixing the coupling agent and the alkali-treated loofah sponge fiber uniformly under full stirring, and drying the mixture in a drying oven at 100 ℃ for 72 hours to volatilize residual solvent to obtain the loofah sponge fiber treated by the coupling agent;

(4) putting the latex into a barrel, stirring the latex by using ammonia removal equipment to volatilize ammonia gas, and discharging the ammonia gas through an ammonia pumping pipeline until the ammonia content in the natural latex is reduced below a standard to obtain ammonia-removed latex;

(5) preparing a compounding agent:

10% casein solution: weighing the ingredients according to a ratio, adding water into a container with a stirring device, then sequentially adding casein, borax and ammonia water at 50 ℃, heating and stirring until the mixture is completely dissolved to prepare a casein solution;

50% sulphur dispersion: grinding the sulfur horizontal powder in a mortar for later use, and weighing the ingredients according to the proportion; adding water into a container with a stirring device, sequentially adding casein solution, sodium hydroxide solution, dispersing agent NF and sulfur under stirring, and continuously stirring for 5-8h to obtain sulfur dispersion, adjusting the pH value of the dispersion to 10-11, standing for more than 12 h;

the preparation method of 50% foaming agent dispersoid, 50% foaming auxiliary agent dispersoid, 50% accelerator dispersoid, 50% zinc oxide dispersoid, 50% anti-aging agent DNP dispersoid and 50% talcum powder dispersoid is the same as above;

20% sodium fluorosilicate dispersion: grinding sodium fluosilicate powder in a mortar, adding water, and then adjusting the pH value to 6 to obtain a sodium fluosilicate dispersion;

(6) adding 50% of sulfur dispersion, 50% of accelerator dispersion, 50% of zinc oxide dispersion and 50% of antioxidant dispersion compounding agent into the latex together for compounding, stirring while adding, stirring for 20-30 minutes after adding, and standing for later use;

(7) stirring the latex which is kept stand for use in the step (6) before use; adding 2% of 50% foaming agent dispersoid, sequentially adding 50% of foaming auxiliary agent dispersoid and 50% of talcum powder dispersoid, uniformly mixing, adding 20% of sodium fluosilicate dispersoid and loofah sponge fiber, stirring to gel point, quickly molding by injection and gel molding to obtain the product with the density of 45kg/m³The foam material of (2) is used as the head part of the pillow; ② respectively adding 3 percent of 50 percent foaming agent dispersoid, then sequentially adding 50 percent of foaming auxiliary agent dispersoid and 50 percent of talcum powder dispersoid, uniformly mixing, then adding 20 percent of sodium fluosilicate dispersoid and melon fiber, stirring to gel point, then quickly injecting and gelling to form, and finally obtaining the product with the density of 40kg/m³The foam material is used as the shoulder part of the pillow;

(8) and cleaning the die, preheating, coating a release agent, and finally demolding to obtain a finished product.

Compared with the prior art, the invention has the advantages that: (1) according to the invention, through designing the mattress and the bed frame of the nursing bed for the old, the nursing requirements of the old such as physiological activity assistance, adaptive pressure relief, pressure monitoring and the like are met in many aspects, and the nursing bed helps the assisted old to realize normal life and healthy sleep.

(2) According to the invention, the pressure of the human-bed interface is monitored in real time, the detection result is taken as a theoretical basis, and the position of the slide block on the support rod is intelligently and automatically moved by using the electric telescopic hydraulic rod, so that the hardness of the skeleton frame is quantitatively adjusted, the self-adaptive dynamic relieving and adjusting of the pressure of each part of the human-bed interface are realized, the requirements of different parts of old people with different body types on supporting force are met, and the spine of a human body is ensured to be in a naturally bent state. Therefore, the defect that the old people are easy to suffer from bedsore due to long-term static compression caused by the fact that the hardness of each part of the mattress cannot be automatically adjusted on the premise that the sleep continuity of the old people is not interfered in the conventional nursing bed is overcome.

(3) According to the invention, the row framework can quantitatively adjust and control the hardness of each region row framework by grading the density, the elastic modulus and the carbonization degree of the round bamboo shrapnel and combining the control of the layer number of the bamboo shrapnel, so that the requirement of crowds with different body types and weights on the support performance of each region of the bed surface can be met, and the larger the density of the common bamboo shrapnel, the smaller the elastic modulus, the higher the carbonization degree and the more the layer number, the larger the hardness of the elastic body unit of the bamboo shrapnel is.

(4) The invention provides a pressure monitoring technology for assisted old people, which can monitor the pressure change of a human-bed interface in real time, recognize the sleeping behavior posture of the old people according to the pressure change, provide a sleeping pressure monitoring report and provide a reasonable suggestion for the sleeping problems of the old people.

(5) According to the invention, the natural loofah sponge fiber material and the latex are compounded for use, and the novel plant fiber latex composite material is prepared to be used as the mattress filling material, so that the defects of poor air permeability, poor permeability and the like of the latex can be overcome, the characteristics of high air permeability, high moisture absorption and dispersion, bacteria resistance, mite resistance and the like of the loofah sponge are fully exerted, and the advantages of good latex support property and good elasticity are fully exerted, thereby helping to create a good human-bed microenvironment and improve the sleep quality of a human.

(6) According to the invention, the loofah sponge is used as a raw material for latex foaming, and the loofah sponge latex composite materials with different densities and hardnesses can be obtained through quantitative sorting of the diameter grade, the size and the density of the loofah sponge and quantitative compression treatment, so that the materials can support different parts of different crowds in a quantitative manner, and the sleep requirements of the old can be better met.

(7) According to the invention, the design of the bed braking device can help the assisted old people to realize activities such as assisting in lifting back, assisting in getting up, assisting in getting out of bed and the like, fully meet the daily nursing requirements of the assisted old people, improve the nursing quality and reduce the nursing pressure.

Drawings

FIG. 1 is a schematic view of the overall functional structure of the bed in this embodiment;

FIG. 2 is a schematic view of the bed frame (in a flat state) of the bed of the present embodiment;

FIG. 3 is a schematic view of the bed frame (in a back-up state) of the bed according to the present embodiment;

FIG. 4 is a schematic view of the bed frame (in the rising state) of the bed according to the embodiment;

FIG. 5 is a schematic view of the bed frame of the bed (in a flat state) being disassembled integrally in the present embodiment;

FIG. 6 is a schematic view of the braking device of the bed in this embodiment;

FIG. 7 is a schematic view of the motor of the bed in this embodiment;

FIG. 8 is a schematic view of the bed skeleton of the bed according to the present embodiment;

FIG. 9 is a schematic view of a bed skeleton of the bed according to the present embodiment;

FIG. 10 is a schematic view of the bed unit skeleton (with 3 bamboo splints) of the bed in this embodiment;

fig. 11 is a schematic view of the bed unit skeleton (with 3 bamboo splints) of the bed in this embodiment;

FIG. 12 is a schematic view of a bed unit skeleton (with 2 bamboo splints) of the bed in this embodiment;

fig. 13 is a schematic view of the bed unit skeleton (with 2 bamboo splints) of the bed in this embodiment;

FIG. 14 is a schematic view of the metal sleeve and the bamboo insert in this embodiment;

FIG. 15 is a schematic view of the adaptive hardness/softness adjustment process of the bed unit skeleton structure (with 3 bamboo splints) in this embodiment;

fig. 16 is a schematic view of the adaptive hardness/softness adjustment process of the bed unit skeleton structure (with 3 layers of bamboo splinters) in this embodiment;

fig. 17 is a schematic diagram C of the adaptive hardness/softness adjustment process of the bed unit skeleton structure (with 3 layers of bamboo splinters) in this embodiment;

FIG. 18 is a partial enlarged view A of hardness adjustment of the electric telescopic hydraulic rods of the unit skeleton structure of the bedding (with 3 layers of bamboo splints) in the present embodiment;

FIG. 19 is a partial enlarged view B of hardness adjustment of the electric telescopic hydraulic rods of the unit skeleton structure of the bed (with 3 layers of bamboo splints) in the present embodiment;

FIG. 20 is a schematic view of the electric telescopic hydraulic rod of the bed unit skeleton in the present embodiment;

FIG. 21 is a schematic view of a layered structure of a mattress according to the present embodiment;

fig. 22 is a schematic cross-sectional view of the bedding layer of the present embodiment, i.e., a horizontal distribution diagram of the pressure sensors.

Detailed Description

The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.