An automatic bed car that prevents bedsores and helps with defecation

Abstract

The present invention specifically relates to an anti-bedsore and defecation-aiding automatic bed vehicle, comprising a first cushion body installed on the upper surface of a seat frame and a back frame, wherein: a first push frame and a first connecting rod are provided on the seat frame, a first rotating shaft is provided on the back frame, the first push frame is connected to the first connecting rod, a second connecting rod and a second push frame are provided on the back frame, the second push frame is connected to the second connecting rod, the other end of the first push frame is connected to the other end of the second push frame through a load-bearing flexible belt, the other end of the second connecting rod is connected to a rotating rod, the rotating rod is connected to a second motor, one end of the second motor is fixed to the back frame, a tough pull belt is provided on the bottom surface of the first cushion body, one end of the tough pull belt is connected to the first rotating shaft, and the other end of the tough pull belt is connected to the seat frame. The beneficial effects of the present invention are that the first cushion body is in an arched state through the combined use of the back frame, the second connecting rod, the second push frame, the rotating rod and the motor, thereby reducing the contact between the human body and the first cushion body, thereby alleviating the problem of bedsores.

Description

Technical Field

[0001] The invention relates to the technical field of automatic bed carriages, and in particular to an anti-bedsore and defecation-aiding automatic bed carriage. Background Art

[0002] The long-term contact between the shoulder blades, spine, and pubic bones of the disabled people who are bedridden for a long time and the hard objects (bed boards) causes the pressure to cause the blood circulation near these places to be poor for a long time, which leads to bedsores. Since the automatic bed car needs to be transformed into a wheelchair shape that can be moved in addition to lying down, it needs to meet the requirements of passing through a relatively limited width channel or door width, and keep it relatively narrower than the width of an ordinary single bed, and obtain the flexibility of the smallest turning radius for movement. Therefore, the rollover measures in the conventional anti-bedsore bed structure solution are limited by this width structure.

[0003] In addition, when the automatic bed car is switched to the bed posture, in order to facilitate the nursing of patients to directly use the toilet facilities to defecate, the rear double universal wheels of the bed car structure remove the crossbeam, which makes the vertical shaft sleeve of the wheel fixed by the rear telescopic push rod shaft lack the freedom of radial rotation. The push rod shaft of the wheel extends outward in a straight line. The rear wheel needs a certain clearance relationship due to the push back support linear slider and the double arc connecting rods on both sides, including the inevitable clearance between the screws at the connection and the clearance between the threaded sleeve and the screw rod in the inner telescopic tube, so that it can rotate at a certain angle. When the extension distance of the rear wheel telescopic rod increases, the double rear wheels will show a more obvious "eight" shape outward turn, and the telescopic rod will change from horizontal extension to a small downward extension, which will cause the threaded sleeve connected to the rear telescopic rod to crush the screw rod and make it unable to rotate, causing the wheel to turn outward, which will eventually affect the transmission effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide an anti-bedsore and defecation-aiding automatic bed vehicle, which can limit the excessive deformation of the load-bearing cushion to the extent that the body is in long-term contact with the cushion base plate, causing the spine, thighs and pubic bones to be excessively squeezed, thereby alleviating the bed sore problem; in addition, in order to enable the toilet to be used directly in the wheelchair state, the rear universal wheel frame crossbeam is cancelled, and the combination of movable rails, fixed rails and sliding ball assemblies can effectively eliminate the problem of wheel eversion, reduce the transmission force problem between the rear push cylinder, the rear push rod, the front push cylinder and the front push rod, and extend the service life.

[0005] The present invention describes an anti-bedsore and defecation-aiding automatic bed vehicle, which includes a seat frame, a back frame and a foot frame, which are flexibly connected in sequence, and a first cushion body is installed on the upper surfaces of the seat frame and the back frame, wherein: the seat frame is provided with a first pushing frame and a first connecting rod, the back frame is provided with a first rotating shaft, the first pushing frame is connected to the first connecting rod, the back frame is provided with a second connecting rod and a second pushing frame, the second pushing frame is connected to the second connecting rod, the other end of the first pushing frame is connected to the other end of the second pushing frame through a load-bearing flexible belt, the other end of the second connecting rod is connected to a rotating rod, the rotating rod is connected to a second motor, one end of the second motor is fixed to the back frame, and a flexible drawstring is provided on the bottom surface of the first cushion body, one end of the flexible drawstring is connected to the first rotating shaft, and the other end of the flexible drawstring is connected to the seat frame.

[0006] Specifically, the flexible drawstring is provided with at least two groups of linkage drawstrings, which are respectively connected to the first pushing frame and the second pushing frame, the rotating rod is provided with a traction wheel, the first rotating shaft is connected with a steel wire rope, the other end of the steel wire rope is connected to the traction wheel, the outer surface of the first pushing frame is provided with a sliding mouth, the sliding mouth is provided with a slider that can move in the sliding mouth, the sliding mouth is provided with a slider for moving in the sliding mouth, the slider is provided with a positioning screw, the positioning screw is placed at the sliding mouth, and the flexible drawstring is connected to the slider.

[0007] Specifically, the rotating rod is connected to the second motor via a push arm, the tripod is hinged with a supporting frame, and a third cushion body is placed on the upper surface of the supporting frame.

[0008] Specifically, a tension spring is fixed to the seat frame, and one end of the tension spring is connected to the first pushing frame.

[0009] Specifically, the seat frame is provided with a mounting frame, the mounting frame is equipped with a rear push cylinder and a front push cylinder, a rear push rod is installed in the rear push cylinder, a front push rod is installed in the front push cylinder, the front push rod is connected to the tripod through the tripod push rod, the rear push rod is connected to the universal wheel frame, an arc support rod is connected between the mounting frame and the back frame, the arc support rod and the universal wheel frame are connected through an auxiliary support rod, the back frame is provided with a linear slide rail module, and one end of the arc support rod is connected to the linear slide rail module.

[0010] Specifically, the front push rod is provided with a reduction box, and the reduction box is respectively connected to the first motor and the driving wheel.

[0011] Specifically, the mounting frame is provided with a fixed rail, the universal wheel frame is connected with a movable rail, the movable rail is placed in the fixed rail, the movable rail and the fixed rail are connected by a sliding ball assembly, and the universal wheel frame is equipped with wheels.

[0012] Specifically, a second pad is placed on the upper surface of the tripod.

[0013] Specifically, the seat frame and the first pushing frame are connected via an auxiliary rotating shaft.

[0014] Specifically, a fixing sleeve for guiding the flexible drawstring to be tensioned or contracted is provided at the bottom of the first pad body.

[0015] The beneficial effects of the present invention are: the second motor drives the rotating rod and then drives the second connecting rod to swing upward, and the load-bearing flexible belt drives the second pushing frame to swing upward, so that the first cushion body is in an arched state, reducing the pressure of the specific position of the human body that is prone to bedsores and the first cushion body in contact, so that the body part and the first cushion body part are in a suspended state, thereby alleviating the problem of bedsores. In addition, when the front push rod and the rear push rod are extended, the foot frame push rod and the arc support rod can stably bear the weight of the legs and back, and the structure is connected to the movable rail through the universal wheel frame, the movable rail is placed in the fixed rail and the movable rail is also extended with the universal wheel, which can prevent the rear wheel from turning outward to both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the invention.

[0017] Figure 2 It is another structural schematic diagram of the present invention from another angle.

[0018] Figure 3 It is a schematic diagram of the structure in which a seat frame, a back frame, a tripod, a supporting frame and a mounting frame are connected.

[0019] Figure 4 yes Figure 3 Another angle diagram of the structure.

[0020] Figure 5 It is a schematic diagram of the structure in which the first cushion body and the drawstring are connected.

[0021] Figure 6 The invention is a schematic diagram of a structure in which a rear push cylinder, a front push cylinder, a rear push rod, a front push rod, a first motor, a reduction box, a driving wheel, a fixed rail and a movable rail are connected.

[0022] Figure 7 This is a structural diagram from another angle.

[0023] Figure 8 It is a schematic diagram of the top structure of the present invention.

[0024] Fig. 9 yes Figure 8 AA cross-sectional structure schematic diagram.

[0025] Fig.10 It is a schematic diagram of the chair state structure.

[0026] Fig.11 yes Fig.10 Schematic diagram of the back structure.

[0027] The icons in the following figures are explained: seat frame 1, first connecting rod 101, first pushing frame 102, back frame 2, second connecting rod 201, second pushing frame 202, load-bearing flexible belt 2021, tension spring 2022, tripod 3, tripod pushing rod 301, supporting frame 4, first cushion body 5, flexible drawstring 501, linkage drawstring 502, slider 503, fixing sleeve 504, second cushion body 6, third cushion body 7, arc support rod 8, linear slide rail module 801, auxiliary support rod 9, universal wheel frame 10, wheel 11, mounting frame 12, rear push cylinder 13, front push cylinder 1301, rear push rod 14, front push rod 15, first motor 16, reduction box 17, driving wheel 18, fixed rail 19, movable rail 20, rotating rod 21, traction wheel 211, wire rope 212, push arm 22, second motor 23, first rotating shaft 24. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] like Figures 1 to 11 As shown, the present invention describes an anti-bedsore and defecation-aiding automatic bed vehicle, comprising a seat frame 1, a back frame 2 and a foot frame 3, wherein the seat frame 1, the back frame 2 and the foot frame 3 are activably connected in sequence, and a first cushion body 5 is installed on the upper surface of the seat frame 1 and the back frame 2, wherein: the seat frame 1 is provided with a first push frame 102 and a first connecting rod 101, the back frame 2 is provided with a first rotating shaft 24, the first push frame 102 is connected to the first connecting rod 101, the back frame 2 is provided with a second connecting rod 201 and a second push frame 202, and the second push frame 102 is provided with a first connecting rod 201 and a second connecting rod 202. The frame 202 is connected to the second connecting rod 201, the other end of the first pushing frame 102 is connected to the other end of the second pushing frame 202 through a load-bearing flexible belt 2021, the other end of the second connecting rod 201 is connected to the rotating rod 21, the rotating rod 21 is connected to the second motor 23, one end of the second motor 23 is fixed on the back frame 2, a flexible drawstring 501 is provided on the bottom surface of the first cushion body 5, one end of the flexible drawstring 501 is connected to the first rotating shaft 24, and the other end of the flexible drawstring 501 is connected to the seat frame 1.

[0030] The back frame 2 is provided with a second connecting rod 201 and a second pushing frame 202, the other end of the second connecting rod 201 is connected to a rotating rod 21, the rotating rod 21 is connected to a second motor 23, one end of the second motor 23 is fixed to the back frame 2, so that the second motor 23 pushes the second connecting rod 201 to swing upward, and uses the load-bearing flexible belt 2021 to drive the second pushing frame to swing upward, so that the first cushion body 5 is arched, reducing the pressure of the specific position of the human body that is prone to bedsores and the contact with the first cushion body, so that the body part and the first cushion body part are in a suspended state, thereby alleviating the problem of bedsores. The bottom surface of the first cushion body 5 is provided with a flexible drawstring 501, one end of the flexible drawstring 501 is connected to the first rotating shaft 24, and the other end of the flexible drawstring 501 is connected to the seat frame 1, which is used to increase the overall supporting force of the first cushion body 5 and reduce the overall deformation of the first cushion body and the concave state. The first cushion body 5 is made of soft elastic material, the middle part of which is arched, mainly supporting the middle part of the back of the human body. The local part of the back of the human body and the first cushion body 5 are suspended in the air, so that the spine and pubic bone are not easily compressed when the patient lies down, thereby avoiding bedsores.

[0031] like Figures 2 to 4 As shown, the flexible drawstring 501 of the present structure is provided with at least two groups of linkage drawstrings 502, and the at least two groups of linkage drawstrings 502 are respectively connected to the first pushing frame 102 and the second pushing frame 202, the rotating rod 21 is provided with a traction wheel 211, the first rotating shaft 24 is connected with a steel wire rope 212, and the other end of the steel wire rope 212 is connected to the traction wheel 211, and the outer surface of the first pushing frame 102 is provided with a sliding mouth, and the sliding mouth is provided with a slider 503 that can move in the sliding mouth, and the sliding mouth is provided with a slider 503 for moving in the sliding mouth, and the slider 503 is provided with a positioning screw, and the positioning screw is placed at the sliding mouth, and the linkage drawstring 502 is connected to the slider 503.

[0032] The second motor 23 pushes the push arm 22 to swing, causing the rotating rod 21 to rotate. The stroke of the second motor 23 determines the angle of the push arm 22, and the push arm 22 is fixedly connected to the rotating rod 21. The rotating rod 21 is connected to the second connecting rod 201. The second connecting rod 201 swings as the rotating rod 21 rotates. The second connecting rod 201 is hinged to the second pushing frame 202. During the swinging process, the second pushing frame 202 swings upward. At the same time, the load-bearing flexible belt 2021 connects the second pushing frame 202 and the first pushing frame 102 respectively and swings upward when the second pushing frame 202 and the first pushing frame 102 also swing upward, so that the first pad 5 above the second pushing frame 202 and the first pushing frame 102 protrudes.

[0033] In addition, the traction wheel 211 connected to the rotating rod 21 rotates synchronously, and the wire rope 212 is thereby tensioned or relaxed, so that the first rotating shaft 24 connected to the other end of the wire rope 212 also rotates accordingly, and the wire rope 212 is tensioned or contracted due to the rotation of the traction wheel 211 set on the rotating rod 21, and the tensioning or contraction of the wire rope 212 plays an auxiliary role in the rotation force of the first pushing frame 102. One end of the wire rope 212 is wound around the first rotating shaft 24, and the rotation process of the first rotating shaft 24 also simultaneously reels or unwinds the wire rope 212, and rotates synchronously with the traction wheel 211, and the traction wheel 211 is in the unwinding or rewinding state relative to the first rotating shaft 24.

[0034] In addition, the slider 503 has the function of offsetting the displacement of the flexible drawstring 501 caused by the lifting of the first push frame 102 and offsetting part of the displacement of the flexible drawstring 501 caused by the tension of the flexible drawstring 501 under stress.

[0035] The rotating rod 21 is connected to the second motor 23 via a push arm 22, and the tripod 3 is hinged with a supporting frame 4, and a third cushion body 7 is placed on the upper surface of the supporting frame 4. The rotating rod 21 is connected to the second motor 23 via a push arm 22. The push arm 22 pushes the rotating rod 21 to rotate, so that the second pushing frame 202 swings upward, so that a certain angle is formed between the second pushing frame 202 and the back frame 2. The second connecting rod 201 is used to support the second pushing frame 202 to improve the overall supporting capacity.

[0036] like Figure 6 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 As shown, the seat frame 1 of the present structure is provided with a mounting frame 12, the mounting frame 12 is provided with a rear push cylinder 13 and a front push cylinder 1301, the rear push cylinder 13 is provided with a rear push rod 14, the front push cylinder 1301 is provided with a front push rod 15, the front push rod 15 is connected to the tripod 3 through the tripod push rod 301, the rear push rod 14 is connected to the universal wheel frame 10, the mounting frame 12 is connected to the back frame 2 with an arc support rod 8, the arc support rod 8 is connected to the universal wheel frame 10 through the auxiliary support rod 9, the back frame 2 is provided with a linear slide module 801, one end of the arc support rod 8 is connected to the linear slide module 801. The linear slide module 801 refers to a direct slide and a linear displacement slider, one end of the arc support rod 8 is connected to the linear displacement slider, which is conducive to the upward swing of the back frame 2 to form a chair state.

[0037] like Figure 6 and Figure 7 As shown, the front push rod 15 of this structure is provided with a reduction box 17, and the reduction box 17 is respectively connected to the first motor 16 and the driving wheel 18. The first motor 16 drives the driving wheel 18 to rotate through the reduction box 17, so that the whole body can move.

[0038] The front push rod 15 and the rear push rod 14 can respectively perform linear extension and retraction motions along the front push cylinder 1301 and the rear push cylinder 13 through the cooperation of the first motor 16 and the transmission mechanism. When the front push cylinder 1301 and the rear push cylinder 13 are extended, the foot frame push rod 301 and the arc support rod 8 can stably bear the weight of the legs and back, so that the entire frame can switch between the chair posture and the bed posture.

[0039] like Fig.10 and Fig.11 As shown, when the chair state is switched to the bed state, the wheel 11 moves outward in a straight line, and the wheel 11 will turn outward due to the clearance relationship. The reason is that the gap between the screws at the connection point and the gap between the threaded sleeve and the screw rod in the inner telescopic tube allow it to rotate at a certain angle, resulting in the turning outward. When the rear push rod 14 extends to a larger distance, the double rear wheels will turn outward in an "eight" shape, and the rear push rod 14 will therefore change from horizontal extension to a small downward extension, thereby causing the threaded sleeve connected to the rear push rod 14 to press the screw rod to death, making it unable to rotate and affecting the transmission effect. In addition, the toilet can be used directly in the wheelchair state, so the rear universal wheel frame crossbeam is cancelled. In order to solve the technical problem that the rear wheel will turn outward in an "eight" shape, the structure adopts the mounting frame 12 provided with a fixed rail 19, and the universal wheel frame 10 is connected with a movable rail 20, and the movable rail 20 is placed in the fixed rail 19, and the movable rail 20 is connected to the fixed rail 19 through a sliding ball assembly. Among them, the movable rail 20 is placed in the fixed rail 19. When the rear push rod 14 is extended, the movable rail 20 is extended with the universal wheel, which can prevent the rear wheel from turning outward to both sides and enable the rear wheel to be extended horizontally, eliminating the phenomenon of wheel turning outward, reducing the impact of the rear push rod 14 on the screw transmission, and thus extending the life of the synchronous belt and gears.

[0040] A second cushion body 6 is placed on the upper surface of the foot frame 3, which can facilitate the placement of the foot on the second cushion body 6. The seat frame 1 is connected to the first push frame 102 through an auxiliary rotating shaft 103. A fixing sleeve 504 is provided at the bottom of the first cushion body 5 for guiding the flexible drawstring 501 to be stretched or contracted. The bottom of the first cushion body 5 is used to be provided with a fixing sleeve 504 for limiting the lateral deviation of the longitudinally stretchable and contractible flexible load-bearing belt. Based on the specific posture for setting anti-bedsore, the oblique side of the first cushion body 5 is less than the other two sides and the flexible drawstring 501 must slide in the fixing sleeve 504 when stretched to limit the lateral deviation problem, so as to ensure the effective use of the "pocket" shape of the first cushion body 5.

[0041] like Figure 10 to Figure 11 As shown, the linear guide rail module 801 on the back frame 2 directly uses the toilet to facilitate defecation. The structure removes the crossbeam between the rear double universal wheels, and the displacement of the support point of the chair-bed posture change is realized by the linear guide rail conversion.

[0042] When the automatic bed is converted from a bed to a chair, the first cushion body 5 is in a folded state, and the first cushion body 5 is used to support the back of the human body. The load-bearing flexible belt 2021 between the first push frame 102 and the second push frame 202. The load-bearing flexible belt 2021 enables the first push frame 102 and the second push frame 202 to implement a linkage effect, and the tension spring 2022 pulls the first push frame 102 to reset to the seat frame 1, so that the surface of the first push frame 102 and the surface of the seat frame 1 are level with each other, and the surface of the first push frame 102 will not be higher than the surface of the seat frame 1, effectively solving the problem of the first push frame 102 lifting the local protrusion of the first cushion body 5 when the first push frame 102 is not level.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-bedsore and defecation-aiding automatic bed vehicle, comprising a seat frame (1), a back frame (2) and a foot frame (3), wherein the seat frame (1), the back frame (2) and the foot frame (3) are movably connected in sequence, and a first cushion body (5) is installed on the upper surfaces of the seat frame (1) and the back frame (2). Features: The seat frame (1) is provided with a first pushing frame (102) and a first connecting rod (101); the back frame (2) is provided with a first rotating shaft (24); the first pushing frame (102) is connected to the first connecting rod (101); the back frame (2) is provided with a second connecting rod (201) and a second pushing frame (202); the second pushing frame (202) is connected to the second connecting rod (201); the other end of the first pushing frame (102) is connected to the other end of the second pushing frame (202) via a load-bearing flexible belt (2021); the other end of the second connecting rod (201) is connected to a rotating rod (21); the rotating rod (21) is connected to a second motor (23); one end of the second motor (23) is fixed to the back frame (2); a flexible drawstring (501) is provided on the bottom surface of the first cushion body (5); One end of the flexible drawstring (501) is connected to the first rotating shaft (24), and the other end of the flexible drawstring (501) is connected to the seat frame (1). The flexible drawstring (501) is provided with at least two groups of linkage drawstrings (502), and the at least two groups of linkage drawstrings (502) are respectively connected to the first pushing frame (102) and the second pushing frame (202). The rotating rod (21) is provided with a traction wheel (211). The first rotating shaft (24) is connected to a steel wire rope (212), and the other end of the steel wire rope (212) is connected to the traction wheel (211). The outer surface of the first pushing frame (102) is provided with a sliding mouth, and the sliding mouth is provided with a slider (503) that can slide in the sliding mouth. The slider (503) is provided with a positioning screw, and the linkage drawstring (502) is connected to the slider (503).

2. The anti-bedsore and defecation-aiding automatic bed carriage according to claim 1, Features: The rotating rod (21) is connected to the second motor (23) via a push arm (22); the tripod (3) is hingedly connected to a supporting frame (4); and a third cushion body (7) is placed on the upper surface of the supporting frame (4).

3. The anti-bedsore and defecation-aiding automatic bed-moving machine according to claim 1, Features: The seat frame (1) is fixed with a tension spring (2022), and one end of the tension spring (2022) is connected to the first pushing frame (102).

4. The anti-bedsore and defecation-aiding automatic bed-moving machine according to claim 1, Features: The seat frame (1) is provided with a mounting frame (12), the mounting frame (12) is provided with a rear push tube (13) and a front push tube (1301), a rear push rod (14) is installed in the rear push tube (13), a front push rod (15) is installed in the front push tube (1301), the front push rod (15) and the tripod (3) are connected via a tripod push rod (301), the rear push rod (14) is connected with a universal wheel frame (10), an arc support rod (8) is connected between the mounting frame (12) and the back frame (2), the arc support rod (8) and the universal wheel frame (10) are connected via an auxiliary support rod (9), the back frame (2) is provided with a linear slide rail module (801), and one end of the arc support rod (8) is connected to the linear slide rail module (801).

5. The anti-bedsore and defecation-aiding automatic bed-moving machine according to claim 4, Features: The front push rod (15) is provided with a reduction box (17), and the reduction box (17) is respectively connected to the first motor (16) and the driving wheel (18).

6. The anti-bedsore and defecation-aiding automatic bed-moving machine according to claim 4, Features: The mounting frame (12) is provided with a fixed rail (19), the universal wheel frame (10) is connected with a movable rail (20), the movable rail (20) is placed in the fixed rail (19), the movable rail (20) and the fixed rail (19) are connected via a sliding ball assembly, and the universal wheel frame (10) is provided with a wheel (11).

7. The anti-bedsore and defecation-aiding automatic bed-moving machine according to claim 1, Features: A second pad (6) is placed on the upper surface of the tripod (3).

8. The anti-bedsore and defecation-aiding automatic bed-moving machine according to claim 1, Features: The seat frame (1) and the first pushing frame (102) are connected via an auxiliary rotating shaft (103).

9. The anti-bedsore and defecation-aiding automatic bed-moving machine according to claim 4, Features: A fixing sleeve (504) for guiding the flexible drawstring (501) to be tensioned or contracted is provided at the bottom of the first pad body (5).

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