CN112043524B

CN112043524B - Sectional type posture adjustment mechanism

Info

Publication number: CN112043524B
Application number: CN202010978086.0A
Authority: CN
Inventors: 田杰; 张萍
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2018-10-12
Filing date: 2018-10-12
Publication date: 2021-12-21
Anticipated expiration: 2038-10-12
Also published as: CN109223377A; CN109223377B; CN112043523B; CN112043523A; CN112043524A

Abstract

The invention relates to a sectional type posture adjusting mechanism which comprises a mattress body consisting of a saturation pad body and a folding part, wherein the mattress body comprises a plurality of saturation pad bodies and the folding part, a first inner container is arranged in each saturation pad body, a second inner container is arranged in each folding part, and the density of the first inner container is greater than that of the second inner container, so that the folding part can be bent or unfolded along the plane of the saturation pad body based on the compressibility and volume reduction of the folding part under the condition that the at least one saturation pad body generates displacement which is not parallel to the plane of the at least one saturation pad body. The invention adopts the integrated flat mattress surface, eliminates the uncomfortable feeling of discontinuous gaps among the mattresses to patients when the mattresses are folded, can improve the psychological pressure and the environmental influence of the patients lying in bed for a long time, and is beneficial to promoting the treatment and rehabilitation process of the patients.

Description

Sectional type posture adjustment mechanism

The invention relates to a nursing mattress with an application number of 201811187054.8, an application date of 2018, 10 and 12, an application type of the nursing mattress with the adjustable angle, and a divisional application of the nursing mattress.

Technical Field

The invention relates to the technical field of medical care, in particular to a sectional type posture adjusting mechanism.

Background

The care of critically ill patients has always been a major concern for medical and monitoring personnel. Severely ill patients, such as paralysis and major surgery, often manifest themselves as prolonged bed rest and inability to turn over autonomously. First, organs or tissues of a patient lying in bed for a long time are pressed for a long time, so that blood circulation is blocked and ischemia is continuously performed locally to cause soft tissue damage until ulceration and necrosis, and the seriously ill patient can be pressed for the reasons to form bedsore. Secondly, when a patient lying in bed for a long time is nursed, the patient needs to change the long-term lying posture by turning over by external force or lying in a half way, and the like, so as to achieve the treatment effect. Therefore, how to change the prone position of the patient becomes a major issue for nursing seriously ill patients. In the conventional technology, the mattress is often divided into two or more sections, so that a guardian can conveniently adjust the bending angle of the mattress relative to the bed board through an adjusting mechanism. Although this method can change the prone position of the patient, it still cannot solve the problem of pressure sore formation, and the reason for this is mainly that the bending angle formed by this method is single and cannot reduce the local pressure on the tissue.

For example, chinese patent publication No. CN201073393 (publication No. CN) discloses a household nursing mattress for paralyzed patients, which comprises a mattress and a rising and seating lifting mechanism, wherein the mattress comprises a frame and a mattress body arranged in the frame, the mattress body comprises a left mattress body and a right mattress body at the upper part, and a thigh supporting plate and a shank supporting plate at the lower part; the left cushion body is hinged with the right cushion body; the thigh supporting plate and the shank supporting plate at the lower part are hinged; the lower part of the shank supporting plate at the bottom end of the frame is provided with a slideway, and the lower part of the shank supporting plate moves on the slideway; the lower ends of the left pad body and the right pad body are provided with fork hooks which are hooked with a cross rod in the middle of the frame, and a thigh supporting plate and a cross rod at the lower part; a lifting mechanism for sitting up and sitting up is arranged between the upper end of the frame and the mattress, and a lifting mechanism for turning over is arranged between the two sides of the frame and the left and right mattress bodies. A leg bending lifting mechanism is arranged at the hinged position between the thigh supporting plate and the shank supporting plate.

For another example, chinese patent publication No. CN205197561U discloses an adjustable bed. This bed includes bed, storage tank, flat board, left swash plate and right swash plate, the storage tank passes through the bolt fastening and is in the upper portion of bed, the flat board sets up the middle part of storage tank, left and right swash plate articulates respectively dull and stereotyped both sides, the lower part of left and right volume swash plate articulates respectively has left and right bracing piece, the upper portion transverse direction of flat board, left swash plate, right swash plate is equipped with the bar cushion respectively. This bed adopts a plurality of split type structures, convenient to detach, and the both ends of this bed can both tilt up certain angle, need not the position of adjustment bed indoor, has improved the convenience of this bed, is a plurality of bar cushion with traditional mattress structure change, and it is to bend when the bed, and the mattress of bending position can not extrude each other, does not influence each other, can not leave the crease after the tiling.

For example, chinese patent publication No. CN108158280A discloses an ergonomic mattress capable of five-stage adjustment of lying angle. The ergonomic mattress comprises a soft mattress, a bed board, a seat body frame and a bed board angle adjusting mechanism, wherein the bed board is composed of a first bed board to a fifth bed board which are sequentially connected in a tail-ending manner, and two adjacent bed boards are pivoted; the top surface formed by the five sections of bed boards is fixedly attached to the bottom of the cushion body. The bed board ground of the third section is fixed on the base frame; the bed board angle adjusting mechanism is arranged on the seat body frame and arranged inside the seat body frame, and is used for adjusting the inclination angles of the first bed board, the second bed board, the fourth bed board and the fifth bed board. The invention is divided into five sections to adjust in combination with the physiological curve of the human body, and can provide the comfort level suitable for the user who lies in different body conditions; the adjusting mechanism has simple structure and ingenious design, the whole mattress has smaller volume and lighter weight, is easy to move, does not occupy larger space, and greatly reduces the manufacturing cost.

For example, chinese patent publication No. CN107647684A discloses a foldable mattress and a supporting device thereof. The mattress is of a layered structure and sequentially comprises a breathable layer, a heat preservation layer, a palm cushion layer and a felt cushion layer from top to bottom, wherein the mattress body is equally divided into two mattress bodies along the length direction of the mattress body, and the two mattress bodies are connected through the breathable layer; the insulating layer, the palm cushion layer and the felt cushion layer are of separate structures; the invention provides a foldable mattress and a supporting device thereof, and solves the related defects that the existing mattress is not easy to fold and inconvenient to carry, the supporting device is mostly a fixing device, and the bending angle of the mattress cannot be adjusted to meet the requirements of different users.

For example, chinese patent publication No. CN108209298A discloses a mattress device. The device is used for automatically adjusting the sleeping posture of a human body on the mattress device so as to assist the human body in sleeping. The mattress device comprises a mattress body, wherein a plurality of lifters are arranged in the mattress body, the lifters are respectively arranged corresponding to a plurality of adjusting areas in the upper surface of the mattress body, and each lifter is used for adjusting the height of the adjusting area; the detection system is connected with the plurality of lifters and used for detecting the free sleeping posture of the human body on the mattress body, controlling the corresponding lifters to ascend and descend according to the free sleeping posture, and adjusting the free sleeping posture to be a preset sleeping posture. The mattress still realizes the change of the sleeping posture by dividing the mattress body into independent single mattress bodies.

For example, chinese patent publication No. CN205457527U discloses a mattress with an angularly adjustable backrest. The mattress comprises a mattress main body, a mattress support and a mattress cover, wherein the mattress main body is provided with a containing groove which is arranged along the upper surface and one side of the mattress main body, and a rotating shaft which transversely penetrates through the containing groove is inserted in the containing groove; the bottom of the backrest is fixedly connected with the circumferential surface of the rotating shaft, and a wood frame supporting structure is arranged in the backrest; and the locking mechanism is arranged on the rotating shaft and is used for locking the rotating angle of the rotating shaft. The folding backrest arranged in the mattress plays a role of a bed head, an external bed head is not needed, the use of materials can be reduced, and the cost can be reduced in energy-saving colleagues. Simultaneously, the angle of the backrest can be adjusted according to the requirements of users through the locking device, the angle between the mattress and the mattress main body of the backrest is adjusted, and the use function of the product is expanded.

It can be seen that the above five patents all enable the formation of a mattress in a curved state by dividing the mattress body into individual pillow blocks. However, this arrangement has a number of disadvantages, and the gaps between the pillows can cause discomfort to the patient.

In other prior art, for example, chinese patent publication No. CN206006639U discloses an air mattress capable of adjusting air pressure according to angle. The inflatable mattress has the advantages that the head of the inflatable mattress is turned upwards by a certain angle after inflation is completed, the relative position of the horizontal gyroscope changes along with the turned-up position, the horizontal gyroscope generates an electric signal containing relative height and horizontal relative angle information according to the rotating angle of the gyro rotor of the horizontal gyroscope and sends the electric signal to the control device, the control device controls the air pump to inflate the inflatable mattress according to the electric signal, air pressure in the mattress is adjusted, the air pressure in the turned-up mattress is kept uniformly balanced, the air pressure at the folded position of the mattress is enabled to be optimal, the detection end of the pressure sensor is arranged in the air outlet of the air pump, real-time air pressure is detected, when the air pressure in the mattress reaches a set critical value, the pressure sensor converts monitoring data and generates an electric signal to feed back the electric signal to the control device, and the control device controls the air pump to stop inflating according to the received feedback signal. This mattress comes the regulation mattress angle through adjusting atmospheric pressure, and the air current is undulant can cause certain harm to patient, and obviously this mattress is not applicable to severe patient's nursing.

It is obvious that the prior art mattress is bent by dividing the mattress into separate mattress bodies and then arranging actuators between each mattress bottom, whereby the support and movement of the actuators is used to change the angle between the mattress bodies to achieve adjustment of the mattress. However, the plurality of separating cushions form a bendable angle, the gaps between the cushions have a plurality of problems, and the edges of the gaps are contacted with the human tissues of the patient to bear local high pressure, which is more unfavorable for improving the pressure sores. Therefore, although the angle of the mattress can be adjusted, the above patent can not solve the problem of nursing the patient and even aggravate the disease of the patient when in use. Therefore, a multi-angle adjustable mattress capable of adjusting the angle and improving pressure sores of patients is urgently needed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a nursing mattress with an adjustable angle. The nursing mattress comprises a mattress body, wherein the mattress body comprises at least two saturation mattress bodies and a folding part which is continuously arranged between two adjacent saturation mattress bodies and comprises a plurality of indentation ridges which penetrate through the mattress body in the height direction and have compressibility; the plurality of trace ridges can be bent or unfolded along the plane of the at least one saturation cushion body based on the compressibility of the plurality of trace ridges under the condition of displacement of the at least one saturation cushion body, wherein the displacement is not parallel to the plane of the at least one saturation cushion body, so that the at least one saturation cushion body can form an angle with an adjacent saturation cushion body in a manner of rotating around the bending axis of the folding part; the angle is adjustable as a function of the displacement; wherein the plurality of trace ridges can be compressed in the height direction of the trace ridges based on the compressibility of the plurality of trace ridges to form a compressed end surface continuous with the plane in which the saturation pad body is located when the plurality of trace ridges are subjected to pressure.

According to a preferred embodiment, the indentation ridges are of a columnar structure, wherein a transition gap between two adjacent indentation ridges is provided with a first elastic filler, and an inner layer of each indentation ridge is provided with a second elastic filler, so that the plurality of indentation ridges bend or unfold along a plane of the at least one saturation pad body based on elastic deformation of the first elastic filler and the second elastic filler under the condition of displacement of the at least one saturation pad body, wherein the displacement is not parallel to the plane of the at least one saturation pad body; wherein the elastic modulus of the first elastic filler is greater than the elastic modulus of the second elastic filler, so that the plurality of indentation ridges can form a compression end face continuous with a plane in which the saturation pad body is located in a manner of reducing a transition gap volume based on the elastic modulus of the first elastic filler and the second elastic filler when the plurality of indentation ridges are under pressure.

According to a preferred embodiment, the folds comprise several first folds with a length direction parallel to the longitudinal direction of the mattress body and arranged parallel to one another and/or several second folds with a length direction perpendicular to the longitudinal direction of the mattress body and arranged parallel to one another,

under the condition that the at least one saturation pad body is displaced in a non-parallel mode to the plane of the at least one saturation pad body, the indentation ridge of the first folding part can be bent or unfolded along the plane of the saturation pad body based on the compressibility of the indentation ridge of the first folding part, and therefore the saturation pad body can form a first angle with an adjacent saturation pad body in a mode of rotating around the bending axis of the first folding part; and/or the trace ridge of the second folding part can be bent or unfolded along the plane of the saturation pad body based on the compressibility of the trace ridge of the second folding part, so that the saturation pad body can form a second angle with an adjacent saturation pad body in a manner of rotating around the bending axis of the first folding part.

According to a preferred embodiment, the crossing area of the first folding part and the second folding part is provided with an unsaturated cushion body integrally connected with the first folding part and the second folding part; the first inner container is filled in the saturation pad body, the second inner container is filled in the non-saturation pad body, the density of the first inner container is greater than that of the second inner container, and therefore the trace ridges can be bent or unfolded along the plane of the saturation pad body based on the compressibility of the trace ridges and the volume reduction of the non-saturation pad body under the condition that the at least one saturation pad body generates displacement which is not parallel to the plane of the at least one saturation pad body.

According to a preferred embodiment, the nursing mattress further comprises a bed board fixedly connected with the mattress body, wherein the bed board comprises at least one first bed board unit and the second bed board unit which is connected with the at least one first bed board unit in a hinged manner; thereby, the at least one saturation pad can generate a displacement that is not parallel to the plane of the at least one saturation pad based on the manner in which the at least one first deck unit and the second deck unit rotate relative to each other.

According to a preferred embodiment, at least one first bed plate unit and/or at least one second bed plate unit is fixedly connected with a fixed plate which is connected with a pressure telescopic pipe of a hydraulic cylinder through a universal joint, so that when the hydraulic cylinder is pressurized or depressurized, the at least one first bed plate unit forms at least one adjustable bending angle relative to the at least one second bed plate unit in a manner of moving support of the pressure telescopic pipe of the hydraulic cylinder and in a manner of rotating around an axis of the universal joint; such that the at least one saturation pad body is capable of forming the angle with an adjacent saturation pad body based on the adjustable bend angle.

According to a preferred embodiment, the mattress body is provided with a fixing hole for accommodating the bed board fixing column, and the fixing hole is connected with the fixing column in an interference fit manner.

According to a preferred embodiment, the nursing mattress further comprises a cavity which is arranged at one end of the mattress body close to the head cushion body and is used for accommodating the head cushion body, and the head cushion body can move along the transverse direction of the mattress body in a mode of penetrating through the open end surface of the cavity; the mattress comprises a mattress body, a head cushion body and a plurality of sliding rails, wherein the head cushion body comprises two bosses which extend along the longitudinal direction of the mattress body and are arranged on two parallel side surfaces of the head cushion body, two sliding rails which continuously extend along the longitudinal direction of the mattress body and are provided with hollow inner cavities are arranged on the inner wall of the cavity, and under the condition that the bosses are connected to the hollow inner cavities in a clamping manner and are in sliding connection with the sliding rails, the head cushion body can be arranged in the cavity in a manner of moving relative to the mattress body along the longitudinal extending direction of the sliding rails.

According to a preferred embodiment, the invention also discloses an angle adjusting method of a nursing mattress, which comprises a mattress body, a folding part and a plurality of angle adjusting parts, wherein the mattress body comprises at least two saturation cushions and the folding part is continuously arranged between two adjacent saturation cushions and comprises a plurality of indentation ridges with compressibility and penetrates through the mattress body in the height direction; the plurality of trace ridges can be bent or unfolded along the plane of the at least one saturation pad body based on the compressibility of the plurality of trace ridges under the condition of displacement of the at least one saturation pad body, wherein the displacement is not parallel to the plane of the at least one saturation pad body, so that the at least one saturation pad body can form an angle with an adjacent saturation pad body in a manner of rotating around the bending axis; the angle is adjustable as a function of the displacement; wherein the plurality of trace ridges can be compressed in the height direction of the trace ridges based on the compressibility of the plurality of trace ridges to form a compressed end surface continuous with the plane in which the saturation pad body is located when the plurality of trace ridges are subjected to pressure.

According to a preferred embodiment, the indentation ridges are arranged in a columnar structure, wherein a transition gap between two adjacent indentation ridges is provided with a first elastic filler, and an inner layer of each indentation ridge is provided with a second elastic filler, so that the plurality of indentation ridges bend or unfold along a plane of the at least one saturation pad body based on elastic deformation of the first elastic filler and the second elastic filler under the condition of displacement of the at least one saturation pad body, wherein the displacement is not parallel to the plane of the at least one saturation pad body; wherein the elastic modulus of the first elastic filler is greater than the elastic modulus of the second elastic filler, so that the plurality of indentation ridges can form a compression end face continuous with a plane in which the saturation pad body is located in a manner of reducing a transition gap volume based on the elastic modulus of the first elastic filler and the second elastic filler when the plurality of indentation ridges are under pressure.

The invention provides an angle-adjustable nursing mattress, which at least has the following advantages:

(1) the patient lying in bed for a long time has physical weakness under long-term diseases and no movement, and the patient must complete the turning over or partial limb movement by medical care personnel and medical instruments, however, the common sectional mattress or the mattress cover sleeved in the sectional mattress has gaps with obvious touch feeling, so the invention adopts the integrated flattening mattress surface, eliminates the uncomfortable feeling of discontinuous gaps between the mattresses when the mattress is folded, can improve the psychological pressure and environmental influence of the patient lying in bed for a long time, and is beneficial to promoting the treatment and rehabilitation process of the patient. And the back of the mattress body is folded in a multilayer crease manner at the positions which need to be bent when the back is raised, the legs are bent and the body is turned over, so that the turnover part of the mattress can be well transited, and the mattress can be extended or folded at a larger angle. Under the bottom is the drive of sectional type's bed board, can drive the mattress through buckling between the sectional bed board conveniently, make patient's upper limbs and low limbs lift up or receive and stretch, be favorable to eliminating the irritability mood and the tired out sense that the patient crouched the sick bed to produce for a long time, promote blood circulation simultaneously and be favorable to the recovery of the patient's state of an illness, for the patient provides more comfortable treatment environment, be favorable to improving long-term bed patient's psychological pressure and treatment, need not medical personnel and adopt modes such as traditional promotion or pulling, save time and physical power.

(2) This nursing mattress adopts hydraulic transmission mode to carry out angle regulation. The moving speed of the piston in the hydraulic transmission mode is in direct proportion to the flow of oil flowing into the hydraulic cylinder and is irrelevant to load, the pressure of a user on a bed board can change along with the turning angle of the bed board when the user uses the function of the hospital bed, the traditional mechanical transmission mode can show the phenomenon of unstable transmission under the function of the traditional mechanical transmission mode, the hydraulic transmission mode cannot change the transmission speed under the condition of load change, the transmission is stable and efficient, and the comfortable use experience is provided for the user. The bed board unit is arranged in a rotating mode, so that the angle of the bed board unit of a patient can be adjusted, the patient can turn over, lift the back and bend the legs, and the circulation of blood, body fluid and liquid medicine of the patient is promoted.

(3) Since the second elastic filler of the indentation ridges has good elasticity with respect to the first elastic filler between the indentation ridges, the plurality of indentation ridges bend or unfold along the bending axis due to the elastic deformation of the first elastic filler and the second elastic filler in the event of a displacement of the at least one saturation pad that is not parallel to the plane of the at least one saturation pad. The two end faces of the trace ridge are respectively flush with the surface of the saturated pad body, so that the patient is not subjected to pressure sore caused by overlarge local pressure caused by gaps due to discontinuity between the pad bodies. Secondly, the trace ridge can be raised after being bent, and the limb part of the patient can form certain friction depending on the protrusion, so that the limb of the patient is prevented from being displaced.

(4) The invention can not only meet different hair washing positions of different patients, but also adjust the posture of the patient without trouble, avoids the condition that the patient lifts up the upper limbs or needs a larger space to open and close by the opening and closing mode in the prior art, reduces the workload of nursing personnel and improves the treatment environment of the bedridden patient, is beneficial to the treatment process of patients.

Drawings

FIG. 1 is a schematic top view of an adjustable angle nursing mattress according to the present invention;

FIG. 2 is a side view of a nursing mattress provided by the present invention in a folded condition;

FIG. 3 is an enlarged partial view of a fold of a care mattress provided by the present invention;

FIG. 4 is a schematic perspective view of a care mattress provided in accordance with the present invention in a folded condition;

FIG. 5 is a schematic side view of a preferred construction of a nursing mattress according to the present invention in an uncompressed state;

FIG. 6 is a schematic side view of a preferred construction of a nursing mattress according to the present invention in a compressed state;

FIG. 7 is a schematic side view of another preferred construction of a nursing mattress according to the present invention in another orientation in a compressed state

FIG. 8 is a schematic view of a preferred configuration of a deck structure of a nursing mattress provided by the present invention;

FIG. 9 is a schematic view of a care mattress provided by the present invention in a state of being on a care bed;

FIG. 10 is a schematic view of a preferred construction of a bending actuator for a nursing mattress according to the present invention; and

fig. 11 is a schematic structural view of the head pad slide rails and the bosses of the nursing mattress provided by the invention.

List of reference numerals

1: mattress body 1 e: fixing hole

2: bed board 1 f: folding part

7: fixing the disk 1 g: cavity body

8: gimbal 1 f-1: scar ridge

9: pressure bellows 1 f-2: gap

11: boss 1 f-3: second elastic filler

12: slide rail 1 f-4: first elastic filler

14: base 2 a: first bed board unit

18: shelf 2 b: second bed board unit

19: first bracket 2 c: fixing column

20: second bracket 2 a-1: right hip plate body

21: barrier 2 b-1: left hip plate body

1 a: first folded portion 91: stud bolt

1 b: second fold 92: pressure pipe

1 c: the unsaturated cushion body 93: hydraulic telescopic pipe

1 d: the saturation pad body α: angle of rotation

1 h: head cushion

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

In the description of the present invention, the terms "first", "second", "third" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first," "second," "third," and so forth may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "inner", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, the term "detachably" is one of an adhesive, a key connection, a screw connection, a pin connection, a snap connection, a hinge connection, a clearance fit, or a transition fit. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

The embodiment discloses an angle-adjustable nursing mattress, which is shown in figure 1. The nursing mattress comprises a mattress body 1. The mattress body 1 comprises at least two saturation cushions 1d and a folding part 1f which is arranged between two adjacent saturation cushions 1d in a continuous mode and comprises a plurality of indentation ridges 1f-1 with compressibility and penetrates through the mattress body 1 in the height direction. Wherein, under the condition of displacement of at least one saturation cushion body 1d which is not parallel to the plane of at least one saturation cushion body 1d, the plurality of trace ridges 1f-1 can be bent or unfolded along the plane of the saturation cushion body 1d based on the compressibility of the plurality of trace ridges 1f-1, so that at least one saturation cushion body 1d can form an angle alpha with an adjacent saturation cushion body in a manner of rotating around the bending axis of the folding part 1f, as shown in fig. 2. The angle alpha can be adjusted according to the change of the displacement. The plurality of trace ridges 1f-1 can be compressed in the height direction of the trace ridges to form a compressed end face continuous with the plane in which the saturation pad body 1d is located, based on the compressibility of the plurality of trace ridges 1f-1, when the plurality of trace ridges 1f-1 are subjected to pressure, as shown in fig. 6 or 7. As shown in fig. 5, the ridge is not compressed, so as to distinguish the compressed state of the ridge. For example, when the folded portion 1f is subjected to a push-pull force piece perpendicular and/or tangential to the longitudinal direction of the saturation cushion 1d (a pulling force generates an acceleration perpendicular and/or tangential to the longitudinal direction of the mattress body 1, and the acceleration generates a displacement within a certain time t), the folded portion 1f can be unfolded or folded in such a manner that the trace ridge moves in a direction perpendicular to the longitudinal direction of the saturation cushion 1 d. Alternatively, the fold can unfold or bend in such a way that the crease moves in a direction parallel to the longitudinal direction of the saturation pad 1d, under the condition that the fold 1f is subjected to a pushing and pulling force parallel and/or tangential to the longitudinal direction of the saturation pad 1 d. The direction of the push-pull force can also be in a non-perpendicular state with the normal direction of the saturation pad body 1 d. The patient lying in bed for a long time has physical weakness under long-term diseases and no movement, and the patient must complete the turning over or partial limb movement by medical care personnel and medical instruments, however, the common sectional mattress or the mattress cover sleeved in the sectional mattress has gaps with obvious touch feeling, so the invention adopts the integrated flattening mattress surface, eliminates the uncomfortable feeling of discontinuous gaps between the mattresses when the mattress is folded, can improve the psychological pressure and environmental influence of the patient lying in bed for a long time, and is beneficial to promoting the treatment and rehabilitation process of the patient. And the back of the mattress body is folded in a multilayer crease manner at the positions which need to be bent when the back is raised, the legs are bent and the body is turned over, so that the turnover part of the mattress can be well transited, and the mattress can be extended or folded at a larger angle. Under the bottom is the drive of sectional type's bed board, can drive the mattress through buckling between the sectional bed board conveniently, make patient's upper limbs and low limbs lift up or receive and stretch, be favorable to eliminating the irritability mood and the tired out sense that the patient crouched the sick bed to produce for a long time, promote blood circulation simultaneously and be favorable to the recovery of the patient's state of an illness, for the patient provides more comfortable treatment environment, be favorable to improving long-term bed patient's psychological pressure and treatment, need not medical personnel and adopt modes such as traditional promotion or pulling, save time and physical power.

Preferably, the ridge 1f-1 is a columnar structure. As shown in FIG. 3, the transition gap 1f-2 between two adjacent crease ridges 1f-1 is provided with a first elastic filler 1 f-4. The inner layer of each trace ridge 1f-1 is provided with a second elastic filler 1 f-3. Thus, the plurality of trace ridges 1f-1 are bent or spread along the plane of the saturation pad body 1d based on the elastic deformation of the first and second elastic fillers in the case of the displacement of the at least one saturation pad body 1d occurring not parallel to the plane of the at least one saturation pad body. The elastic modulus of the first elastic filler 1f-4 is larger than that of the second elastic filler 1f-3, so that the plurality of indentation ridges 1f-1 can form a compression end face continuous with the plane of the saturated cushion body 1d in a manner of reducing the volume of the transition gap 1f-2 based on the elastic modulus of the first elastic filler 1f-4 and the second elastic filler 1f-3 under the condition that the plurality of indentation ridges 1f-1 are stressed. Preferably, the first elastic filler 1f-4 may be one of elastic cotton or memory cotton. The second elastic filler 1f-3 may be one of elastic cotton or memory cotton. The outermost trace ridge of the folded portion 1f can space the saturation pad 1d from the folded portion 1 f. Since the second elastic filler in the trace ridges 1f-1 and the first elastic filler between the trace ridges have good elasticity, the plurality of trace ridges bend or unfold based on elastic deformation of the first elastic filler and the second elastic filler in the case of displacement of the at least one saturation pad body 1d occurring non-parallel to the plane of the at least one saturation pad body. Preferably, both end faces of the trace ridge are higher than the surface of the saturation pad body. Preferably, two of the trace ridges are flush with the surface of the saturation pad body respectively at the compressed rear end surfaces, so that the patient is not subjected to pressure sores caused by excessive local pressure due to gaps caused by discontinuity between the pad bodies. Secondly, the trace ridge can be raised after being bent, and the limb part of the patient can form certain friction depending on the protrusion, so that the limb of the patient is prevented from being displaced.

Preferably, the folded portion 1f includes a plurality of first folded portions 1a whose longitudinal direction is parallel to the longitudinal direction of the mattress body 1 and arranged in parallel with respect to each other and/or a plurality of second folded portions 1b whose longitudinal direction is perpendicular to the longitudinal direction of the mattress body 1 and arranged in parallel with respect to each other. Therefore, under the condition that at least one saturation pad body 1d has displacement which is not parallel to the plane of at least one saturation pad body 1d, the indentation ridge of the first folding part 1a can be bent or unfolded along the plane of the saturation pad body 1d based on the compressibility of the indentation ridge of the first folding part 1a, so that the saturation pad body 1d can form a first angle with an adjacent saturation pad body in a mode of rotating around the bending axis of the first folding part 1 a. And/or the crease of the second fold 1b can be bent or unfolded along the plane of the saturation pad 1d based on the compressibility of the crease of the second fold 1b, so that the saturation pad 1d can form a second angle with an adjacent saturation pad in a manner of rotating around the bending axis of the first fold 1 a. As shown in fig. 1 and 4, the number of the first folded portions 1a is 6 in total. The number of the second folded portions 1b is 4 in total. When the saturation cushion body at one side of the two folding parts 1a corresponding to the waist of the human body is subjected to displacement which is not parallel to the saturation cushion body, the saturation cushion body at one side of the two folding parts 1a forms an angle with the saturation cushion body at the other side in a manner of rotating around the bending axes of the two first folding parts 1a, so that a patient can sit up or change the included angle between the upper limbs and the lower limbs of the patient depending on the angle. The bending axis of the first folded portion 1a refers to a geometric center line of the first folded portion 1a parallel to the longitudinal direction. The bending axis of the second folded portion 1b refers to a geometric center line of the first folded portion 1b parallel to the transverse direction. When the saturation pad body corresponding to one side of the two folding parts 1a of the knee part of the human body is subjected to displacement which is not parallel to the saturation pad body, the saturation pad body positioned on one side of the two folding parts 1a forms an angle with the saturation pad body on the other side in a mode of rotating around the bending axes of the two first folding parts 1a, so that a patient can change the included angle between thighs and calves depending on the angle. When the saturation pad body at one side of the two folding parts 1a corresponding to the ankle parts of the human body is subjected to displacement which is not parallel to the saturation pad body, the saturation pad body at one side of the two folding parts 1a forms an angle with the saturation pad body at the other side in a mode of rotating around the bending axes of the two first folding parts 1a, so that a patient can change the included angle between the sole and the shank depending on the angle. When the saturation pad body on one side of the four second folding parts 1b is subjected to displacement which is not parallel to the saturation pad body, the saturation pad body on one side of the two folding parts 1a forms an angle with the saturation pad body on the other side in a manner of rotating around the bending axes of the two first folding parts 1a, so that a patient can lie on the side based on the angle. The folding part 1f is designed fully based on human mechanics, and various rehabilitation treatment conditions of patients are considered.

Preferably, as shown in fig. 1 or 4, the crossing region of the first fold portion 1a and the second fold portion 1b is provided with an unsaturated cushion body 1c integrally connected with the first fold portion 1a and the second fold portion 1 b. Wherein, the first liner is filled in the saturation pad body 1 d. The second inner container is filled in the unsaturated cushion body 1 c. The density of the first inner container is greater than that of the second inner container, so that the plurality of trace ridges 1f-1 can be bent or unfolded along the plane of the saturated cushion body 1d based on the compressibility of the plurality of trace ridges 1f-1 and the volume reduction of the unsaturated cushion body 1c under the condition of the displacement of the at least one saturated cushion body 1d, which is not parallel to the plane of the at least one saturated cushion body 1 d. For example, the first inner container is composed of two first sponge layers, a spring layer, two second sponge layers and a first sponge layer. The second inner container is a third sponge layer and a second spongy layer. Because the density of the first inner container is greater than that of the second inner container, the deformability of the second inner container is greater than that of the first inner container. Therefore, the mattress body 1 is more easily bent and can be folded along the unsaturated cushion body 1 c. Preferably, the deformability of the first inner bag is smaller than the deformability of the first elastic filler, so that the mattress body 1 is more easily bent and can be folded along the bending axis of the folding portion 1f, since the folding portion 1f is more easily deformed when the mattress body 1 is subjected to a force non-parallel to the at least one saturation pad 1 d.

Preferably, the nursing mattress also comprises a bed board 2 fixedly connected with the mattress body 1. As shown in fig. 8, the bedplate 2 comprises at least one first bedplate unit 2a and a second bedplate unit 2b connected in an articulated manner with the at least one first bedplate unit. Thereby, the at least one saturation pad 1d is able to generate a displacement non-parallel to the plane of the at least one saturation pad based on the way the at least one first 2a and second 2b bedplate units are rotated in relation to each other. As shown in fig. 3, the first bed plate unit 2a and the second bed plate unit 2b are preferably arranged symmetrically with respect to the horizontal center line of the bed plate 2 as a symmetry axis. As shown in fig. 3, it is preferable that the number of the first bed unit 2a is 4 in total. The number of the second bed board units 2b is 4. Wherein, two adjacent first bedplate units 2a are connected in a mutual rotating mode through a hinging mode. For example, the bending axes of the two folded portions 1a corresponding to the waist of the human body are arranged in parallel with the rotation axis of the hinge portion of the two first bed plate units 2a, and when the two first bed plate units 2a rotate with each other, the two folded portions 1a corresponding to the waist of the human body can change the included angle between the upper limbs and the lower limbs of the patient along with the rotation angle of the two first bed plate units 2 a. The bending axes of the two folding parts 1a corresponding to the knee parts of the human body are arranged in parallel with the rotating axes of the hinged parts of the two first bed plate units 2a, when the two first bed plate units 2a rotate mutually, the two folding parts 1a corresponding to the knee parts of the human body can change the included angle between the thigh and the shank of the patient along with the rotating angles of the two first bed plate units 2 a. The bending axes of the two folding parts 1a corresponding to the ankles of the human body are arranged in parallel with the rotating axis of the hinge part of the two first bed plate units 2a, when the two first bed plate units 2a rotate mutually, the two folding parts 1a corresponding to the ankles of the human body can change the included angle between the soles and the shanks of the feet of the patient along with the rotating angles of the two first bed plate units 2 a. When the second bed board unit 2b and the first bed board unit 2a are rotated with each other, the first fold portion 1a and the second fold portion 1b can form an included angle depending on the rotation of the second bed board unit 2b and the first bed board unit 2a with each other, so that the patient can lie on his side. The preferred second deck unit 2b is arranged in the same manner as the first deck unit 2 a. Preferably, the first bed board unit 2a comprises at least a right hip plate body 2a-1 for placing the patient's hip. The second bed board unit 2b comprises at least a left hip plate body 2a-2 for placing the patient's hip. Wherein the right hip panel body 2a-1 and the left hip panel body 2a-2 are both fixedly connected to the upper surface of the base 14 in a manner of being arranged side by side in a direction perpendicular to the longitudinal direction of the mattress body 1 and movably connected to each other through hinges. Preferably, at least one hinge is arranged between adjacent first bedplate units 2 a. The hinge is mounted to the adjacent first bed plate unit 2a by a stud. At least one hinge is arranged between the adjacent first bed plate unit 2a and the second bed plate unit 2 b. The hinge is mounted between the adjacent first bed plate unit 2a and second bed plate unit 2b by a stud. So that the axis of the hinge is the axis of rotation of the hinge.

Preferably, as shown in fig. 9 and 10, at least one first bed plate unit 2a and/or at least one second bed plate unit 2b is fixedly connected with a fixed plate 7 which is connected with a pressure telescopic pipe 9 of a hydraulic cylinder through a universal joint 8. Thus, when the hydraulic cylinder is being pressurized or depressurized, the at least one first bed plate unit 2a forms at least one adjustable bending angle relative to the at least one second bed plate unit 2b in a movably supported manner of the pressure tubes of the hydraulic cylinder and in a rotationally supported manner about the axis of the universal joint. So that at least one saturation pad 1d can form an angle with an adjacent saturation pad on the basis of an adjustable bending angle. The moving speed of the piston in the hydraulic transmission mode is in direct proportion to the flow of oil flowing into the hydraulic cylinder and is irrelevant to load, the pressure of a user on a bed board can change along with the turning angle of the bed board when the user uses the function of the hospital bed, the traditional mechanical transmission mode can show the phenomenon of unstable transmission under the function of the traditional mechanical transmission mode, the hydraulic transmission mode cannot change the transmission speed under the condition of load change, the transmission is stable and efficient, and the comfortable use experience is provided for the user. The bed board unit is arranged in a rotating mode, so that the angle of the bed board unit of a patient can be adjusted, the patient can turn over, lift the back and bend the legs, and the circulation of blood, body fluid and liquid medicine of the patient is promoted. Preferably, the hydraulic transmission system comprises a hydraulic oil tank, a hydraulic cylinder and a pressure telescopic tube 9 comprising a pressure tube 93 and a hydraulic telescopic rod 92. Wherein, the inlet end of the hydraulic cylinder is connected with the hydraulic oil tank. Wherein, one end of the pressure pipe 93 is provided with a hinge and a sealing structure, so that the pressure pipe 93 forms a rotating movable joint with the outlet end of the hydraulic cylinder in an articulated and sealed manner, the other end of the pressure pipe 93 is connected with one end of the hydraulic telescopic rod 92 in a sealed manner, the other end of the hydraulic telescopic rod 92 is connected with a fixed disc 7 which is fixedly arranged at the bottom of at least one first bed board unit through a universal joint 8, so that when the hydraulic cylinder is pressurized or depressurized, at least one first bed board unit forms an adjustable bending angle with a second bed board unit in a mode of winding the axis of the universal joint 8. The pressure tube 93 is a high-strength pressure-bearing tube capable of withstanding hydraulic oil pressure, and may be made of alloy steel such as 16 Mn. Preferably, the pressure pipe 93 comprises a sound-deadening cotton layer, a sponge layer, a gauze layer, a rubber pad, a pipe and a fixing sleeve. Wherein, the cotton layer of amortization is connected with the sponge layer, and the sponge layer is connected with the gauze element layer, and the gauze element layer is equipped with the rubber pad to hydraulic oil mobile noise has effectively been reduced. Preferably, universal joint 8, including the cross, four ends of cross are four spindle noses, the cover has the axle sleeve on the spindle nose, be provided with the oil blanket between axle sleeve and the cross, the oil blanket includes oil blanket main part, interior lip, outer lip, the tip setting of interior lip is in the opening outside of axle sleeve and hugs closely the axle sleeve bottom face, and the outer peripheral face of axle sleeve is hugged closely to the tip of outer lip. Universal joint 8 the universal joint is a machine member for realizing variable angle power transmission and is used for changing the position of transmission axis direction. The universal joint 8 is adopted to enable the bed board unit to change the rotating direction, so that the patient can complete the side turning action. The universal joint 8 is connected with a hydraulic telescopic rod 92 through a stud 91. Preferably, the hydraulic cylinder is mounted on the base 14. Preferably, the hydraulic cylinder is provided with at least 6 outlet ports, and the at least 6 outlet ports are respectively connected with at least 6 pressure pipes 93 through electromagnetic valves, so that the hydraulic cylinder is respectively connected with at least 6 hydraulic telescopic rods 92 through the at least 6 pressure pipes 93 in a controllable manner. The patient can start the switch of different positions according to the demand of oneself to realize the rotation of bed board unit. Preferably, the switch comprises gear settings of turning over, back rising, leg bending, foot lifting and/or getting off the bed, and is used for opening or closing the electromagnetic valve, so that actions comprising turning over, back rising, leg bending, foot lifting and/or getting off the bed can be completed.

Preferably, as shown in fig. 1, the mattress body 1 is provided with fixing holes 1e for receiving fixing posts 2c of the deck 2. The fixing hole 1e and the fixing column 2c are connected in an interference fit mode. As shown in fig. 1, fixing holes 1e are provided at four corners of the mattress body 1. The fixing holes 1e and the fixing columns 2c are in interference fit, so that the mattress body 1 can be folded in a fixed mode, fixing is achieved, and the mattress body is prevented from shifting. The interference fit, i.e. depending on the interference value of the shaft and the hole, produces an elastic pressure between the surfaces of the parts after assembly, so that a tight coupling is obtained. For example, the interference fit between the fixing hole 1e and the fixing post 2c may be one of the base shaft system fits of N7/H6 and P7/H6 or one of the base hole system fits of H6/N7 and H6/P7. Preferably, the fixing hole 1e and the fixing column 2c are in interference fit by adopting the fit of N7/h 6.

Example 2

This example is a further optimization of example 1. The invention has the advantages that the pad body under the head can be adjusted in a sliding way, the pad body is positioned in the head placing area of the patient, when the head of a patient is washed, the patient does not need to adjust the posture, the mattress body is directly and slowly pushed to move towards the inner cavity of the mattress body until an opening area which can conveniently wash the hair is reserved, the invention not only can meet different hair washing positions of different patients, and the posture of the patient does not need to be adjusted in a troublesome way, thereby avoiding the condition that the patient needs to lift the upper limb in the prior art by opening and closing, or needs a larger space to open and close, reduces the workload of nursing staff, improves the treatment environment of the bedridden patient and is beneficial to the treatment process of the patient.

Preferably, as shown in fig. 2, the mattress further includes a cavity 1f provided at an end of the mattress body 1 close to the head cushion 1h and accommodating the head cushion 1h, and the head cushion 1h can move in the lateral direction of the mattress body 1 so as to penetrate through the open end face of the cavity 1 g. Preferably, the head cushion 1h comprises two bosses 11 extending in the longitudinal direction of the mattress body 1 and provided on two mutually parallel sides of the head cushion 1 h. Two slide rails 12 which continuously extend along the longitudinal direction of the mattress body 1 and have hollow inner cavities are arranged on the inner wall of the cavity 1 g. Wherein, under the condition that the boss 11 is connected with the slide rail 12 in a sliding way in a way of being clamped and connected to the hollow inner cavity, the head cushion body 1h can be arranged in the cavity 1g in a way of moving relative to the mattress body 1 along the longitudinal extension direction of the slide rail 12.

Preferably, the connection relationship between the head cushion 1h and the cavity 1g is, for example, a common slide rail type drawer, and is, for example, a partition plate which is installed in a drawer type in a refrigerator and can be fixed at a certain position, so that when the head of a patient needs to be cleaned, the head cushion 1h can be gradually accommodated in the cavity 1g under the condition that a pushing force parallel to the longitudinal direction of the mattress body 1 is applied to the head cushion 1h, the accommodating length of the cushion body can be adaptively adjusted according to different patients, discomfort caused by hanging of shoulders or necks of the patient in the head washing process is avoided, and the head cushion 1h can be completely pulled out to the position where the head of the patient can be conveniently placed under the condition that a pulling force parallel to the longitudinal direction of the mattress body 1 is applied to the head cushion 1 h. Preferably, as shown in fig. 11, the shape of the boss 11 is defined by a structural shape and an ┤ shape in a centrosymmetric relationship with each other with respect to the geometric center of the head cushion 1h, and the shape of the hollow inner cavity of the slide rail 12 is adapted to the shape of the boss 11, as viewed in a plan view of the head cushion 1h perpendicular to the longitudinal direction of the mattress body 1.

Preferably, as shown in figure 9, the mattress further comprises a shelf 18 for placing the hair washing apparatus. The shelf 18 is provided with first and

second brackets

19 and 20 connected to both sides of the shelf 18, respectively, and in a centrosymmetric relationship with each other with respect to the geometric center of the shelf 18. Preferably, the first bracket 19 and the second bracket 20 have the same structural shape, and are arranged on two sides of the partition 18 parallel to each other in parallel, and the partition 18 can be indirectly fixed to other structures through the first bracket 19 and the second bracket 20, and the fixing mode can be plug-in a detachable mode or welding or bonding in an unreleasable mode. Preferably, the shape of the first support 19 and the shape of the second support 20 are both defined by a factory shape with an obtuse angle, as seen in a side view of the mattress parallel to the longitudinal direction of the mattress body 1, i.e. each support may be constituted by two rods connected in series and with an obtuse angle between each other, the two ends of the rods being respectively fastened to the lateral end faces of the shelf 18 and the outer working surface of the foundation 14.

Preferably, the shelf can be provided below the head cushion body 1h in parallel with the first cushion plate 16 and/or the second cushion plate 17 under the condition that both the end of the first bracket 19 remote from the shelf 18 and the end of the second bracket 20 remote from the shelf 18 are fixedly connected to the outer working surface of the base 14. When rinsing the head for the patient, medical personnel can place the device of washing the head on the shelf conveniently, slowly put down the patient head to the device of washing the head again to utilize the support that the device of washing the head middle part was provided with to hold the patient head so that rinse for the patient.

Preferably, the mattress also comprises at least two rails 21 for protecting the body of the patient and each secured to the first support 19 and to the second support 20, respectively, in a direction perpendicular to the shelves. When a patient turns over or moves a part of the trunk, the patient can not well keep the lying posture due to the fact that the patient lies in bed for a long time and the whole body is weak due to diseases, and the patient falls, so that the baffle plates on the two sides can effectively prevent hidden dangers under the condition that medical care personnel do not notice, and unnecessary injuries of the patient during treatment and rehabilitation are reduced.

Example 3

The embodiment provides a method for adjusting the angle of a nursing mattress. As shown in fig. 1, the nursing mattress includes a mattress body 1. The mattress body 1 comprises at least two saturation cushions 1d and a folding part 1f which is arranged between two adjacent saturation cushions 1d in a continuous mode and comprises a plurality of indentation ridges 1f-1 with compressibility and penetrates through the mattress body 1 in the height direction. Wherein, under the condition of displacement of at least one saturation cushion body 1d which is not parallel to the plane of at least one saturation cushion body 1d, the plurality of trace ridges 1f-1 can be bent or unfolded along the plane of the saturation cushion body 1d based on the compressibility of the plurality of trace ridges 1f-1, so that at least one saturation cushion body 1d can form an angle alpha with an adjacent saturation cushion body in a manner of rotating around the bending axis of the folding part 1f, as shown in fig. 2. The angle alpha can be adjusted according to the change of the displacement. The plurality of trace ridges 1f-1 can be compressed in the height direction of the trace ridges to form a compressed end face continuous with the plane in which the saturation pad body 1d is located, based on the compressibility of the plurality of trace ridges 1f-1, when the plurality of trace ridges 1f-1 are subjected to pressure, as shown in fig. 6 or 7. As shown in fig. 5, the ridge is not compressed, so as to distinguish the compressed state of the ridge. For example, when the folded portion 1f is subjected to a push-pull force piece perpendicular and/or tangential to the longitudinal direction of the saturation cushion 1d (a pulling force generates an acceleration perpendicular and/or tangential to the longitudinal direction of the mattress body 1, and the acceleration generates a displacement within a certain time t), the folded portion 1f can be unfolded or folded in such a manner that the trace ridge moves in a direction perpendicular to the longitudinal direction of the saturation cushion 1 d. Alternatively, the fold can unfold or bend in such a way that the crease moves in a direction parallel to the longitudinal direction of the saturation pad 1d, under the condition that the fold 1f is subjected to a pushing and pulling force parallel and/or tangential to the longitudinal direction of the saturation pad 1 d. The direction of the push-pull force can also be in a non-perpendicular state with the normal direction of the saturation pad body 1 d. The patient lying in bed for a long time has physical weakness under long-term diseases and no movement, and the patient must complete the turning over or partial limb movement by medical care personnel and medical instruments, however, the common sectional mattress or the mattress cover sleeved in the sectional mattress has gaps with obvious touch feeling, so the invention adopts the integrated flattening mattress surface, eliminates the uncomfortable feeling of discontinuous gaps between the mattresses when the mattress is folded, can improve the psychological pressure and environmental influence of the patient lying in bed for a long time, and is beneficial to promoting the treatment and rehabilitation process of the patient. And the back of the mattress body is folded in a multilayer crease manner at the positions which need to be bent when the back is raised, the legs are bent and the body is turned over, so that the turnover part of the mattress can be well transited, and the mattress can be extended or folded at a larger angle. Under the bottom is the drive of sectional type's bed board, can drive the mattress through buckling between the sectional bed board conveniently, make patient's upper limbs and low limbs lift up or receive and stretch, be favorable to eliminating the irritability mood and the tired out sense that the patient crouched the sick bed to produce for a long time, promote blood circulation simultaneously and be favorable to the recovery of the patient's state of an illness, for the patient provides more comfortable treatment environment, be favorable to improving long-term bed patient's psychological pressure and treatment, need not medical personnel and adopt modes such as traditional promotion or pulling, save time and physical power.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A sectional type posture adjusting mechanism comprises a mattress body (1) and is characterized in that,

the mattress body (1) comprises a plurality of saturation mattress bodies (1d) and folding parts (1f), wherein a first inner container is arranged in each saturation mattress body (1d), a second inner container is arranged in each folding part (1f), the density of the first inner container is larger than that of the second inner container, so that the folding parts (1f) can be bent or unfolded along the planes of the saturation mattress bodies (1d) based on the compressibility and volume reduction of the folding parts (1f) under the condition that the at least one saturation mattress body (1d) generates displacement which is not parallel to the planes of the at least one saturation mattress body (1d), and the folding parts (1f) at least comprise a plurality of indentation ridges (1f-1) with compressibility;

in case of a displacement of the at least one saturation pad (1d) that is not parallel to the plane in which the at least one saturation pad (1d) is located, the folding part (1f) can be bent or unfolded along the plane of the saturation pad body (1d) based on the compressibility of the trace ridges (1f-1), whereby said at least one saturation pad (1d) can form an angle (a) with an adjacent saturation pad in a manner of rotation about the bending axis of said fold (1f), said angle (a) being adjustable in dependence of said variation of displacement, wherein the plurality of trace ridges (1f-1) can be compressed in the height direction of the trace ridges based on the compressibility of the plurality of trace ridges (1f-1) to form a compressed end face continuous with the plane in which the saturation pad body (1d) is located, when the plurality of trace ridges (1f-1) are subjected to pressure.

2. The segmented posture adjustment mechanism of claim 1, characterized in that a fold (1f) penetrating the mattress body (1) in the height direction is provided in a continuous manner between adjacent two of the saturation pads (1 d);

in the case that the fold (1f) is subjected to a push-pull force perpendicular and/or tangential to the longitudinal direction of the saturation cushion (1d), the fold (1f) can be unfolded or folded in such a way that the trace ridge moves in a direction perpendicular to the longitudinal direction of the saturation cushion (1 d);

under the condition that the folding part (1f) is subjected to a push-pull force which is parallel and/or tangential to the longitudinal direction of the saturation pad body (1d), the folding part (1f) can be unfolded or bent in a mode that the trace ridge moves along the longitudinal direction which is parallel to the saturation pad body (1d), and the direction of the push-pull force can also be in a non-perpendicular state with the normal direction of the saturation pad body (1 d).

3. The segmented posture adjustment mechanism of claim 2, wherein the indentation ridges (1f-1) are of a columnar structure, the transition gap (1f-2) between two adjacent indentation ridges (1f-1) is provided with a first elastic filler (1f-4), and the inner layer of each indentation ridge (1f-1) is provided with a second elastic filler (1f-3), so that in case of displacement of the at least one saturation pad (1d) which is not parallel to the plane of the at least one saturation pad, the plurality of indentation ridges (1f-1) are bent or unfolded along the plane of the saturation pad (1d) based on elastic deformation of the first elastic filler and the second elastic filler;

wherein the elastic modulus of the first elastic filler (1f-4) is greater than the elastic modulus of the second elastic filler (1f-3), so that the plurality of indentation ridges (1f-1) can form a compression end face continuous with the plane of the saturation pad (1d) in a manner of reducing the volume of the transition gap (1f-2) based on the elastic modulus of the first elastic filler (1f-4) and the second elastic filler (lf-3) when the plurality of indentation ridges (1f-1) are under pressure.

4. The segmented postural adjustment mechanism according to claim 3, characterized in that said folds (1f) comprise a number of first folds (1a) having a length direction parallel to the longitudinal direction of said mattress body (1) and arranged parallel with respect to each other and/or a number of second folds (1b) having a length direction perpendicular to the longitudinal direction of said mattress body (1) and arranged parallel with respect to each other,

so that in the event of a displacement of the at least one saturation pad (1d) that is not parallel to the plane of the at least one saturation pad (1d), the indentation ridge of the first fold (1a) can be bent or unfolded along the plane of the saturation pad (1d) on the basis of the compressibility of the indentation ridge of the first fold (1a), so that the saturation pad (1d) can form a first angle with an adjacent saturation pad in a manner of rotating about the bending axis of the first fold (1 a); and/or

The trace ridge of the second folding part (1b) can be bent or unfolded along the plane where the saturation pad body (1d) is located based on the compressibility of the trace ridge of the second folding part (1b), so that the saturation pad body (1d) can form a second angle with an adjacent saturation pad body in a manner of rotating around the bending axis of the first folding part (1 a).

5. The segmented attitude adjustment mechanism according to claim 4, further comprising a bed plate (2) affixed to the mattress body (1), the bed plate (2) comprising at least one first bed plate unit (2a) and a second bed plate unit (2b) hingedly connected to the at least one first bed plate unit; the first bed board unit (2a) and the second bed board unit (2b) are symmetrically arranged by taking the transverse center line of the bed board (2) as a symmetry axis.

6. The segmented attitude adjustment mechanism according to claim 5, characterized in that, in the case of a mutually rotatable connection between two adjacent first deck units (2a) by means of an articulated connection, the at least one saturation pad (1d) is capable of generating a displacement non-parallel to the plane of the at least one saturation pad on the basis of a mutually rotatable connection of two adjacent first deck units (2 a);

the at least one saturation pad body (1d) can generate a displacement which is not parallel to the plane of the at least one saturation pad body based on the way that the at least one first bed board unit (2a) and the second bed board unit (2b) rotate with each other, so that, when the second bed board unit (2b) and the first bed board unit (2a) rotate with each other, the first folding part (1a) and the second folding part (1b) can form an included angle depending on the rotation of the second bed board unit (2b) and the first bed board unit (2a) with each other.

7. The segmented attitude adjustment mechanism according to claim 6, characterized in that at least one of said first bed unit (2a) and/or at least one of said second bed unit (2b) is fixedly connected with a fixed disc (7) connected with a pressure telescopic tube (9) of a hydraulic cylinder by a universal joint (8),

whereby, when the hydraulic cylinder is being pressurized or depressurized, the at least one first bed plate unit (2a) forms at least one adjustable bending angle relative to the at least one second bed plate unit (2b) in a movably supported manner by the hydraulic cylinder's pressure bellows (9) and in a rotationally manner about the axis of the universal joint (8); whereby said at least one saturation pad (1d) is able to form said angle (a) with an adjacent saturation pad based on said adjustable bending angle.

8. The segmented posture adjustment mechanism of claim 7, characterized in that the mattress body (1) is provided with a fixing hole (1e) for receiving a fixing post (2c) of the bed plate (2),

the fixing hole (1e) is connected with the fixing column (2c) in an interference fit mode.

9. The segmented posture adjustment mechanism of claim 8, further comprising a cavity (1g) provided at an end of the mattress body (1) adjacent to the head cushion (1h) for receiving the head cushion (1h), the head cushion (1h) being movable in a lateral direction of the mattress body (1) in such a manner as to penetrate an open end face of the cavity (1 g);

wherein the head cushion body (1h) comprises two bosses (11) which extend along the longitudinal direction of the mattress body (1) and are arranged on two parallel side surfaces of the head cushion body (1h), two slide rails (12) which continuously extend along the longitudinal direction of the mattress body (1) and are provided with hollow inner cavities are arranged on the inner wall of the cavity body (1g),

under the condition that the boss (11) is connected with the slide rail (12) in a sliding manner in a clamping manner to be connected to the hollow inner cavity, the head cushion body (1h) can be arranged in the cavity (1g) in a manner of moving relative to the mattress body (1) along the longitudinal extension direction of the slide rail (12).