CN111249083A

CN111249083A - Multifunctional nursing bed

Info

Publication number: CN111249083A
Application number: CN202010098502.8A
Authority: CN
Inventors: 张永发; 刘凯
Original assignee: Jiangsu Yongfa Medical Equipment Co ltd
Current assignee: Jiangsu Yongfa Medical Equipment Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-06-09

Abstract

The invention discloses a multifunctional nursing bed which is stable in parking and convenient for patients to get on and off the bed, and comprises a bottom frame, a base for supporting the bottom frame and a middle frame arranged on the bottom frame, wherein the tail end of the middle frame is hinged on the bottom frame, the head end of the middle frame is placed on the bottom frame, the bottom frame is also provided with a middle frame driving device, two ends of the bottom frame are respectively provided with a supporting shaft, the back to back of the base is provided with two linear movement driving devices and two transmission shafts which are matched with the linear movement driving devices in a one-to-one correspondence manner, the transmission shafts are provided with transmission arms and bottom frame supporting arms, driving rods of the linear movement driving devices are movably hinged with the transmission arms on the corresponding transmission shafts, and the end parts of the bottom frame supporting arms are arranged together with the corresponding supporting shafts on the bottom frame; the middle frame is provided with a back frame and a driving device thereof, a waist frame, a knee frame, a foot frame, an extension frame and respective driving devices thereof. The multifunctional nursing bed can be widely applied to places such as hospitals, preschool homes and the like.

Description

Multifunctional nursing bed

Technical Field

The invention relates to a nursing bed, in particular to a multifunctional nursing bed.

Background

Traditional multi-functional medical bed, its structure includes: the bed board is generally composed of a back plate, a waist plate and leg plates, and the bottom frame is also provided with side guardrails and a locking mechanism thereof. At present, the lifting of the back plate is usually driven by a screw rod, and is manual, that is: the caregiver is required to shake the handle so that the screw rod rotates to achieve the lifting of the back frame. This burdens the caregiver; the underframe is supported by universal wheels at four corners of the underframe, brake mechanisms are arranged in the four universal wheels, and two sides of the underframe are respectively provided with a brake connecting rod which is connected with the brake mechanisms of the two universal wheels at the same side. In the actual use process, although the brake is provided, after long-term use, the brake performance can be reduced or even completely failed, so that the nursing bed can move in the parking state, and the personal safety of a patient is affected. In addition, the leg plate is simple in structure and can only move as a whole; moreover, there is no pedal to be stepped on, which is very inconvenient to use. In addition, because the turnover mechanism and the locking mechanism of the side guardrail are independent and not compact, the installation of the side guardrail is more troublesome, and the turnover mechanism is usually thinner and firmer, thereby shortening the service life of the side guardrail.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a multifunctional nursing bed which is stable in parking and convenient for patients to get on and off the bed.

The technical scheme adopted by the invention is as follows: a multifunctional nursing bed structurally comprises: the bed comprises a bottom frame, a base for supporting the bottom frame and a middle frame arranged on the bottom frame, wherein the tail end of the middle frame is hinged to the bottom frame, the head end of the middle frame is placed on the bottom frame, a middle frame driving device for driving the middle frame to tilt is further arranged on the bottom frame, two supporting shafts are respectively arranged at two ends of the bottom frame, two linear movement driving devices and two transmission shafts which are matched with the linear movement driving devices in a one-to-one correspondence mode are arranged on the base in a back-to-back mode, a transmission arm and a bottom frame supporting arm are arranged on each transmission shaft, a driving rod of each linear movement driving device is movably hinged with the transmission arm on the corresponding transmission shaft, and the end part of each bottom frame supporting arm is arranged with the corresponding supporting shaft on the bottom frame; the middle frame is provided with a back frame and at least one pair of support arms for the back frame, the support arms are used for supporting the back frame, one ends of the support arms for the back frame are movably hinged to one end of the bed head of the middle frame, and the other ends of the support arms for the back frame are movably hinged to one end, close to the bed tail, of the back frame; the back surface of the back frame is movably provided with a turnover driving shaft at the outer side of the joint of the supporting arm for the back frame and the back frame, namely the side closer to the bed tail, the turnover driving shaft is provided with a turnover driving arm for the back frame, the turnover driving shaft is respectively provided with back frame turnover connecting arms at the two sides of the turnover driving arm for the back frame, and the end parts of the back frame turnover connecting arms are movably hinged on the middle frame; the back of the back frame is also movably hinged with a linear movement driving device for the back frame at one side close to the bed head, and the driving rod of the linear movement driving device for the back frame is movably hinged with the end part of the turnover driving arm for the back frame; a damping device for the back frame is also arranged between the middle frame and the back frame, and two ends of the damping device for the back frame are respectively and movably hinged with the middle frame and the back frame; the middle frame is also provided with a knee frame, a foot frame and an extension frame, the adjacent ends of the knee frame and the foot frame are movably hinged together, the other end of the knee frame is movably hinged on the middle frame, the middle frame is movably hinged with a linear movement driving device for the knee frame, the knee frame is provided with a foot frame overturning driving arm, and a driving rod of the linear movement driving device for the knee frame is movably hinged with the end part of the foot frame overturning driving arm; the other end of the foot frame is movably hinged with a foot frame supporting arm, the middle frame is also movably hinged with a linear movement driving device for the foot frame and a foot frame connecting arm, the other end of the foot frame connecting arm is movably hinged with the end part of the foot frame supporting arm, a foot frame overturning driving arm is arranged on the foot frame connecting arm, and the end part of the foot frame overturning driving arm is movably hinged with a driving rod of the linear movement driving device for the foot frame; the foot frame is also provided with a linear movement driving device for the extension frame, the extension frame is arranged on the foot frame in a sliding manner, and a driving rod of the linear movement driving device for the extension frame is connected with the extension frame.

As a preferred scheme, a multi-functional nursing bed in, the center on articulated through guardrail supporting rack activity have at least a pair of mutual disposition side guardrail, the center on the activity articulated have with guardrail supporting rack matched with locking lever mounting bracket, the other end activity of locking lever mounting bracket articulates on the side guardrail, the guardrail supporting rack on be provided with the latch hook installing pin through the latch hook mounting bracket, be provided with the locking piece on the latch hook installing pin, this locking piece includes: the locking device comprises a locking hook and a handle for rotating the locking hook, wherein a reset torsion spring is sleeved on a locking hook mounting pin, and two ends of the reset torsion spring are respectively arranged on a locking piece and the locking hook mounting frame; the lock rod mounting frame is provided with a lock rod matched with the lock hook; and a damping device for guardrail is arranged between the guardrail support frame and the middle frame.

As a preferable scheme, in the multifunctional nursing bed, the specific structure of the base comprises: the base beam is connected with the same end of the pair of base longitudinal beams in a one-to-one correspondence manner; the specific structure of underframe includes: the two bottom frame longitudinal beams are parallel to each other, and the two bottom frame cross beams are connected to the same end of the pair of bottom frame longitudinal beams in a one-to-one correspondence manner; the specific setting mode of back shaft does: the same end of a pair of underframe longeron be provided with the opposite "C" shape connecting piece of opening, "C" shape connecting piece includes: the end part of the supporting shaft is movably arranged in the C-shaped connecting piece and is bound between the corresponding pair of limiting pins, and a sliding space for the supporting shaft to slide is reserved between the two limiting pins on the C-shaped connecting piece at least one end to form the sliding chute; supporting legs are arranged at four outer corners of the base respectively.

As a preferable scheme, in the multifunctional nursing bed, the damping device for the back frame is an air spring, the hinge point of the air spring for the back frame and the middle frame is located between the connection position of the supporting arm for the back frame and the middle frame and the connection position of the overturning connecting arm for the back frame and the middle frame, and the hinge point of the air spring for the back frame and the back frame is close to the connection position of the supporting arm for the back frame and is closer to the bed head relative to the connection position of the supporting arm for the back frame and the back frame.

As a preferable scheme, in the multifunctional nursing bed, two sides of the other end of the foot frame are respectively and movably hinged with a foot frame supporting arm, two sides of the middle frame are respectively and movably hinged with a foot frame connecting arm matched with the foot frame supporting arm, and the end part of the foot frame connecting arm is movably hinged with the end part of the foot frame supporting arm at the same side; a pair of foot frame connecting arms are provided with foot frame overturning driving shafts, namely: two ends of the foot frame overturning driving shaft are arranged on the foot frame connecting arm on the corresponding side, and the corresponding end of the foot frame overturning driving arm is arranged on the foot frame overturning driving shaft.

As a preferable mode, in the multifunctional nursing bed, the installation structure of the extension frame and the foot frame comprises: the device comprises a foot frame, at least two guide wheels and extension frame sliding grooves, wherein the extension frame sliding grooves are formed in two sides of the foot frame, the two sides of the extension frame are respectively provided with at least two guide wheels matched with the extension frame sliding grooves in the corresponding sides of the foot frame, and the guide wheels on the extension frame are arranged in the extension frame sliding grooves in the corresponding sides of the foot frame in a sliding mode.

As a preferable scheme, in the multifunctional nursing bed, the damping device for the guardrail is a gas spring, one end of the gas spring for the guardrail is movably hinged on the middle frame, the supporting frame for the guardrail is provided with a damping strut, and the other end of the gas spring for the guardrail is movably hinged on the damping strut.

As a preferred aspect, in the multifunctional nursing bed, the guard rail support includes: a pair of guardrail support plates parallel to each other; the latch hook mounting bracket include: the guardrail supporting connecting rod is connected with the guardrail supporting plate, and a pair of latch hook support lugs is arranged on the guardrail supporting connecting rod; the latch hook mounting pin is disposed in the pair of latch hook lugs.

As a preferred aspect, in the multifunctional nursing bed, the locking bar mounting bracket includes: the locking rod support connecting rod is arranged between the pair of locking rod support plates, a pair of locking rod support lugs are arranged on the locking rod support connecting rod, and the locking rod is arranged in the pair of locking rod support lugs.

As a preferred scheme, in the multifunctional nursing bed, four corners of the bottom frame are respectively provided with a universal wheel, a brake mechanism is arranged in the universal wheel, and two sides of the bottom frame are respectively provided with a brake connecting rod for connecting the brake mechanisms of the two universal wheels at the same side.

The invention has the beneficial effects that: when the multifunctional nursing bed does not need to be moved, the bottom frame can be lifted, so that the whole nursing bed is stably supported on the ground through the base, the nursing bed is prevented from moving in a parking state, and the personal safety of a patient is reliably guaranteed; in addition, the bottom frame can realize the lifting or the tilting of the bottom frame under the mutual matching of the pair of bottom frame linear driving devices, thereby greatly facilitating the use of the nursing bed; according to the invention, the back frame linear movement driving device is arranged, so that the automation of the lifting of the back frame is realized, the burden of a caregiver is greatly reduced, the back frame is lifted more smoothly and safely by arranging the back frame damping device between the middle frame and the back frame, and the comfort of a user is greatly improved; the knee frame, the foot frame and the extension frame can independently move under the action of the corresponding linear motors, thereby greatly facilitating the patient to get on or off the bed and reducing the burden of nursing personnel; moreover, the extension frame is directly used as a bed tail plate when a patient lies, so that the bed tail plate is not required to be additionally arranged, and the manufacturing cost is saved; the side guardrail is supported on the middle frame through the guardrail supporting frame and the lock rod mounting frame, and the locking mechanism is directly mounted on the guardrail supporting frame and the lock rod mounting frame, so that the mounting structure of the whole side guardrail is very simple, compact and firm, and the service life of the side guardrail is greatly prolonged.

Drawings

Fig. 1 is a schematic perspective view of a multifunctional nursing bed according to the present invention.

Fig. 2 is a front view structure diagram of the multifunctional nursing bed of the invention.

Fig. 3 is a schematic view of the installation structure of the bottom frame and the base according to the present invention.

Fig. 4 is a perspective view illustrating the side underrun protection of the present invention.

Fig. 5 is a perspective view of the side underrun protection in a locked condition according to the present invention.

The reference numerals in fig. 1 to 5 are: 11. base longitudinal beams, 111, supporting legs, 12, base cross beams, 13, transmission shafts, 131, transmission arms, 132, bottom frame supporting arms, 14, bottom frame linear motors, 141, driving rods, 15, bottom frame longitudinal beams, 151, C-shaped connecting pieces, 152, padding columns, 16, bottom frame cross beams, 17, supporting shafts, 171, shaft sleeves, 18, universal wheels, 181, brake connecting rods, 182, brake pedals, 19 and middle frame supporting arms; 15. bed frame longitudinal beams 152, cushion columns 16, bed frame cross beams 3, middle frames 31, overturning support arms 32, middle frame linear motors 321, drive rods 33, middle frame gas springs 34, knee frame linear motors 341, drive rods 35, middle frame motor supports 4, back frames 401, overturning support plates 41, back frame linear motors 411, drive rods 42, back frame support arms 43, back frame overturning connecting arms 44, back frame overturning drive shafts 441, back frame overturning drive arms 45, back frame gas springs 5, waist frames 61, knee frames 611, foot frame overturning drive arms 62, foot frames 621, extension frame sliding grooves 63, extension frames 631,

guide wheels

631, 64, foot frame connecting arms 641, foot frame overturning drive shafts 642, foot frame overturning drive shafts 65, foot frame support arms 66, extension linear motors 661, drive

arms

661, 67. a linear motor used for a foot frame 671 and a driving rod; 9. side rails, 91, rail support plates, 911, damping struts, 913, rail support links, 914, lock bar lugs, 915, lock bar mounting pins, 916, lock hooks, 92, lock bar support plates, 923, lock bar support links, 924, lock bar lugs, 925, lock bars, 94, handles, 97, and rail gas springs.

Detailed Description

The following describes in detail an embodiment of a multifunctional nursing bed according to the present invention with reference to the accompanying drawings 1 to 5.

As shown in fig. 1, 2 and 3, the multifunctional nursing bed of the present invention comprises: the bed comprises a middle frame 3, a back frame 4, a waist frame 5, a knee frame 61, a foot frame 62, an extension frame 63 arranged on the middle frame 3 in sequence, and an air spring 45 for the back frame as a damping device for the back frame, a base consisting of two base longitudinal beams 11 which are parallel to each other, two base cross beams 12 which are connected to the same end of the pair of base longitudinal beams 11 in a one-to-one correspondence manner, and a bottom frame consisting of two bottom frame longitudinal beams 15 which are parallel to each other and two bottom frame cross beams 16 which are connected to the same end of the pair of bottom frame longitudinal beams 15 in a one-to-one correspondence manner, wherein the bottom surfaces of the end parts of the pair of base longitudinal beams 11 are respectively provided with a supporting leg 111, the bottom frame is respectively provided with middle frame supporting arms 19 at two sides of the bed tail end, the bed tail end of the middle frame 3 is movably hinged on the pair of middle frame supporting arms 19 through a rotating shaft (belonging to the conventional technology in the field and not described herein, the head of a bed end of center 3 is shelved on this pair of padding posts 152, has center through center motor support 35 activity hinge joint on the underframe to use linear electric motor 32, promptly: the bottom frame is provided with a middle frame motor support 35, and the middle frame is movably hinged on the middle frame motor support 35 through a linear motor 32; a driving rod 321 of the linear motor 32 for the middle frame is movably hinged with the middle part of the middle frame 3, and an air spring 33 for the middle frame is also arranged between the middle frame 3 and the bottom frame, so that the air spring 33 for the middle frame and the linear motor 32 for the middle frame form an X-shaped arrangement; a support shaft 17 perpendicular to the bottom frame longitudinal beam 15 is movably arranged between the two ends of the pair of bottom frame longitudinal beams 15 respectively, and the specific arrangement mode of the support shaft 17 is as follows: the same end of the pair of bottom frame longitudinal beams 15 is provided with a C-shaped connecting piece 151 with opposite openings, the C-shaped connecting piece 151 is composed of a bottom plate and side plates positioned at two sides of the bottom plate, two ends of the two side plates are respectively provided with oppositely penetrating mounting through holes, and limiting pins (belonging to the conventional technology in the field and not shown in the figure) are respectively penetrated through the two pairs of mounting through holes; the end of the supporting shaft 17 is movably arranged in a corresponding "C" shaped connecting piece 151 through a shaft sleeve 171 (or a bearing), the "C" shaped connecting piece 151 is usually a metal piece, wherein two limit pins on the "C" shaped connecting piece 151 at one end (usually close to the head of a bed) are tightly attached to the supporting shaft 17, and a sliding space for the supporting shaft 17 to slide is reserved between the two limit pins on the "C" shaped connecting piece 151 at the other end (usually close to the tail of the bed) to form a sliding chute; a pair of transmission shafts 13 perpendicular to the base longitudinal beams 11 are movably arranged between the pair of base longitudinal beams 11, two base frame linear motors 14 serving as base frame linear movement driving devices are arranged on the pair of base cross beams 12 back to back, a transmission arm 131 and a base frame supporting arm 132 are arranged on the transmission shafts 13, a driving rod 141 of each base frame linear motor 14 is movably hinged with the corresponding transmission arm 131 on the corresponding transmission shaft 13, and the end part of each base frame supporting arm 132 is arranged with the corresponding supporting shaft 17. In this embodiment, the universal wheels 18 are respectively disposed at four ends (four corners of the bottom frame) of the pair of bottom frame longitudinal beams 15; the universal wheels 18 are provided with brake mechanisms (which are conventional in the art and not shown), two sides of the bottom frame (the arrangement direction of the base longitudinal beams 11) are respectively provided with a brake connecting rod 181 for connecting the brake mechanisms of the two universal wheels 18 on the same side, and the two universal wheels 18 at the tail end are generally provided with brake pedals 182. The both sides that are close to head of a bed one end of center 3 be provided with back of the body frame respectively with the activity between the same side of the nearer one end of tail of the bed of back of the body frame 4 and be used support arm 42, promptly: two ends of the back frame supporting arm 42 are respectively and movably hinged at one end of the middle frame 3 close to the bed head and one end of the back frame 4 close to the bed tail on the same side; the back surface of the back frame 4 is movably provided with a back frame turning drive shaft 44 through a pair of turning support plates 401 at the outer side (the side closer to the bed tail) of the hinge point of the back frame support arm 42, and the specific arrangement mode of the back frame turning drive shaft 44 is as follows: two sides of the back frame 4 are respectively provided with an overturning support plate 401 downwards, and two ends of the back frame overturning driving shaft 44 are respectively movably arranged in the overturning support plate 401 at the corresponding side; the middle part of the back frame overturning driving shaft 44 is provided with a back frame overturning driving arm 441, two sides of the back frame overturning driving shaft 44 are respectively provided with a back frame overturning connecting arm 43, two sides of the middle frame 3 are respectively provided with an overturning supporting arm 31 matched with the back frame overturning connecting arm 43 downwards, and the end part of the back frame overturning connecting arm 43 is movably hinged with the end part of the overturning supporting arm 31 through a pin shaft; the back of the back frame 4 is also movably hinged with a back frame linear motor 41 serving as a back frame linear movement driving device at one end close to the bed head, and a driving rod 411 of the back frame linear motor 41 is movably hinged with the end part of the back frame overturning driving arm 441 through a pin shaft (belonging to the conventional technology in the field and not shown in the figure); two ends of the air spring 45 for the back frame are respectively and movably hinged on the middle frame 3 and the back frame 4, a hinged point of the air spring 45 for the back frame and the middle frame 3 is positioned between a connecting part of the supporting arm 42 for the back frame and the middle frame 3 and the overturning supporting arm 31, the hinged point of the air spring 45 for the back frame and the back frame 4 is close to the connecting part of the supporting arm 42 for the back frame and the back frame 4, and is closer to a bed head relative to the connecting part of the supporting arm 42 for the back frame and the back frame 4; the adjacent ends of the knee frame 61 and the foot frame 62 are movably hinged together through a pin (belonging to the conventional technology in the field and not described herein), the other end of the knee frame 61 is movably hinged on the middle frame 3, the middle frame 3 is movably hinged with a linear motor 34 for the knee frame as a linear movement driving device for the knee frame, the knee frame 61 is provided with a foot frame overturning driving arm 611, and the driving rod 341 of the linear motor 34 for the knee frame and the end of the foot frame overturning driving arm 611 are movably hinged together through a pin; two sides of the other end of the foot frame 62 are respectively and movably hinged with a foot frame supporting arm 65, two sides of the middle frame 3 are respectively and movably hinged with a foot frame connecting arm 64 matched with the foot frame supporting arm 65, the middle frame 3 is also and movably hinged with a foot frame linear motor 67 used as a foot frame linear movement driving device, the end part of the foot frame connecting arm 64 is movably hinged with the end part of the corresponding foot frame supporting arm 65 through a pin shaft, a foot frame overturning driving shaft 641 is penetrated through the middle part of the foot frame connecting arm 64, a foot frame overturning driving arm 642 is arranged on the foot frame overturning driving shaft 641, and the end part of the foot frame overturning driving arm 642 is movably hinged with a driving rod 671 of the foot frame linear motor 67 through a pin shaft; the foot frame 62 is further provided with an extension linear motor 66 as an extension linear movement driving device, the extension frame 63 is slidably provided on the foot frame 62, and a specific mounting structure of the extension frame 63 includes: the extending frame sliding grooves 621 are arranged on two sides of the foot frame 62, at least two guide wheels 631 matched with the extending frame sliding grooves 621 on the corresponding side of the foot frame 62 are respectively arranged on two sides of the extending frame 63, the guide wheels 631 on the extending frame 63 are slidably arranged in the extending frame sliding grooves 621 on the corresponding side of the foot frame 62, and two ends of the extending frame sliding grooves 621 are respectively provided with a limiting pin (belonging to the conventional technology in the field and not shown in the figure); a driving rod 661 of the extension linear motor 66 is connected to the extension frame 63 (which belongs to the conventional art and will not be described herein); four side guardrails 9 which are arranged oppositely in pairs are movably hinged on the middle frame 3, as shown in fig. 4 and 5, the specific installation structure of the side guardrail 9 comprises: the guardrail mounting structure comprises a lock rod mounting frame and a guardrail supporting frame, wherein the lock rod mounting frame is composed of a pair of mutually parallel lock rod supporting plates 92, the guardrail supporting frame is composed of a pair of mutually parallel guardrail supporting plates 91, two ends of each guardrail supporting plate 91 are respectively and movably hinged on the side guardrail 9 and the middle frame 3 (belonging to the conventional technology in the field and not described herein), two ends of each lock rod supporting plate 92 are respectively and movably hinged on the side guardrail 9 and the middle frame 3 (belonging to the conventional technology in the field and not described herein), the pair of guardrail supporting plates 91 are provided with a lock hook mounting pin 915 through the lock hook mounting frame, and the lock hook mounting frame specifically comprises: a guard rail support link 913 provided between the pair of guard rail support plates 91, the guard rail support link 913 being provided with a pair of lock bar lugs 914; the lock hook mounting pin 915 is arranged on the pair of lock rod support lugs 914 in a penetrating manner, a locking piece consisting of a handle 94 and a lock hook 916 is arranged on the lock hook mounting pin 915, a reset torsion spring (belonging to the conventional technology in the field and not shown in the figure) is further sleeved on the lock hook mounting pin 915, one end of the reset torsion spring abuts against the lock hook mounting frame, and the other end of the reset torsion spring is connected with the lock hook 916 (the connecting structure of the reset spring and the lock hook 916 belongs to the conventional technology in the field and is not shown in the figure); a lock rod supporting connecting rod 923 is arranged between the pair of lock rod supporting plates 92, a pair of lock rod supporting lugs 924 are arranged on the lock rod supporting connecting rod 923, and a lock rod 925 matched with the lock hook 916 is arranged on the pair of lock rod supporting lugs 924; an air spring 97 serving as a damping device for the guardrail is arranged between the guardrail supporting plate 91 and the middle frame 3 on one side of the guardrail supporting frame, one end of the air spring 97 is movably hinged on the middle frame 3, a damping strut 911 is arranged on the guardrail supporting plate 91, and the other end of the air spring 97 is movably hinged on the damping strut 911.

In practical application, a cover (not shown in the figures, belonging to the conventional art) is further disposed outside the guardrail support frame, and an opening matched with the handle 94 is formed in the cover, and the handle 94 is placed in the opening.

In the actual use process: when adjusting the side rail 9, the side rail 9 can be pulled upwards to bring the rail support bracket and the locking bar mounting bracket closer and closer, and finally the locking hook 916 is hooked on the locking bar 925-see fig. 5; if the side underrun protection 9 is to be lowered, the locking hook 916 is rotated together by pulling the handle 94, so that the locking hook 916 is unhooked from the locking lever 925, and then the hand can be released, and at this time, the side underrun protection 9 is slowly lowered to the lowest position by the air spring 97 for the underrun protection-see fig. 4. When the position of the underframe relative to the base is adjusted, the underframe can be lifted or tilted through the mutual matching of the pair of underframe linear motors 14. Can also make whole center 3 vert through linear electric motor 32 for the center, the angle of knee 61 can be adjusted through linear electric motor 34 for the knee again, the angle of foot frame 62 is adjusted through linear electric motor 67 for the foot frame, adjusts the position of extension frame 63 for foot frame 62 through linear electric motor 66 for the extension, has made things convenient for patient's getting on and off the bed greatly, has alleviateed caregiver's burden.

In summary, the present invention is only a preferred embodiment, and not intended to limit the scope of the invention, and all equivalent changes and modifications made in the shape, structure, characteristics and spirit of the present invention described in the claims should be included in the scope of the present invention.

Claims

1. A multi-functional care bed, comprising: underframe, its characterized in that: the multifunctional nursing bed further comprises: the bed comprises a base and a middle frame, wherein the base is used for supporting a bottom frame, the middle frame is arranged on the bottom frame, the bed tail end of the middle frame is hinged to the bottom frame, the bed head end of the middle frame is placed on the bottom frame, a middle frame driving device used for driving the middle frame to tilt is also arranged on the bottom frame, two supporting shafts are respectively arranged at two ends of the bottom frame, two linear movement driving devices and two transmission shafts which are matched with the linear movement driving devices in a one-to-one correspondence mode are arranged on the base in a back-to-back mode, a transmission arm and a bottom frame supporting arm are arranged on each transmission shaft, a driving rod of each linear movement driving device is movably hinged with the transmission arm on the corresponding transmission shaft, and the end part of each bottom frame supporting arm; the middle frame is provided with a back frame and at least one pair of support arms for the back frame, the support arms are used for supporting the back frame, one ends of the support arms for the back frame are movably hinged to one end of the bed head of the middle frame, and the other ends of the support arms for the back frame are movably hinged to one end, close to the bed tail, of the back frame; the back surface of the back frame is movably provided with a turnover driving shaft at the outer side of the joint of the supporting arm for the back frame and the back frame, namely the side closer to the bed tail, the turnover driving shaft is provided with a turnover driving arm for the back frame, the turnover driving shaft is respectively provided with back frame turnover connecting arms at the two sides of the turnover driving arm for the back frame, and the end parts of the back frame turnover connecting arms are movably hinged on the middle frame; the back of the back frame is also movably hinged with a linear movement driving device for the back frame at one side close to the bed head, and the driving rod of the linear movement driving device for the back frame is movably hinged with the end part of the turnover driving arm for the back frame; a damping device for the back frame is also arranged between the middle frame and the back frame, and two ends of the damping device for the back frame are respectively and movably hinged with the middle frame and the back frame; the middle frame is also provided with a knee frame, a foot frame and an extension frame, the adjacent ends of the knee frame and the foot frame are movably hinged together, the other end of the knee frame is movably hinged on the middle frame, the middle frame is movably hinged with a linear movement driving device for the knee frame, the knee frame is provided with a foot frame overturning driving arm, and a driving rod of the linear movement driving device for the knee frame is movably hinged with the end part of the foot frame overturning driving arm; the other end of the foot frame is movably hinged with a foot frame supporting arm, the middle frame is also movably hinged with a foot frame linear movement driving device and a foot frame connecting arm, the other end of the foot frame connecting arm is movably hinged with the end part of the foot frame supporting arm, a foot frame overturning driving arm is arranged on the foot frame connecting arm, and the end part of the foot frame overturning driving arm is movably hinged with a driving rod of the foot frame linear movement driving device; the foot frame is also provided with a linear movement driving device for the extension frame, the extension frame is arranged on the foot frame in a sliding manner, and a driving rod of the linear movement driving device for the extension frame is connected with the extension frame.

2. The multifunctional nursing bed of claim 1, wherein the middle frame is movably hinged with at least one pair of oppositely arranged side guardrails through a guardrail support frame, the middle frame is movably hinged with a lock rod mounting frame matched with the guardrail support frame, the other end of the lock rod mounting frame is movably hinged on the side guardrails, the guardrail support frame is provided with a lock hook mounting pin through a lock hook mounting frame, a locking piece is arranged on the lock hook mounting pin, and the locking piece comprises: the handle is used for rotating the lock hook, a reset torsion spring is sleeved on the lock hook mounting pin, and two ends of the reset torsion spring are respectively arranged on the locking piece and the lock hook mounting frame; the lock rod mounting frame is provided with a lock rod matched with the lock hook; and a damping device for guardrail is arranged between the guardrail support frame and the middle frame.

3. The multifunctional nursing bed of claim 1, wherein the specific structure of the base comprises: the base beam is connected with the same end of the pair of base longitudinal beams in a one-to-one correspondence manner; the specific structure of underframe includes: the two bottom frame longitudinal beams are parallel to each other, and the two bottom frame cross beams are connected to the same end of the pair of bottom frame longitudinal beams in a one-to-one correspondence manner; the specific setting mode of back shaft does: the same end of a pair of underframe longeron be provided with the opposite "C" shape connecting piece of opening, "C" shape connecting piece includes: the end part of the supporting shaft is movably arranged in the C-shaped connecting piece and is bound between the corresponding pair of limiting pins, and a sliding space for the supporting shaft to slide is reserved between the two limiting pins on the C-shaped connecting piece at least one end to form the sliding chute; supporting legs are arranged at four outer corners of the base respectively.

4. The multifunctional nursing bed of claim 1, wherein the damping device for the back frame is a gas spring, the hinge point of the gas spring for the back frame and the middle frame is located between the connection point of the support arm for the back frame and the middle frame and the connection point of the flip connecting arm for the back frame and the middle frame, and the hinge point of the gas spring for the back frame and the back frame is close to the connection point of the support arm for the back frame and is closer to the head of the bed than the connection point of the support arm for the back frame and the back frame.

5. The multifunctional nursing bed as claimed in claim 1, wherein two sides of the other end of the foot frame are respectively and movably hinged with a foot frame supporting arm, two sides of the middle frame are respectively and movably hinged with a foot frame connecting arm matched with the foot frame supporting arm, and the end part of the foot frame connecting arm is movably hinged with the end part of the foot frame supporting arm at the same side; a pair of foot frame connecting arms are provided with foot frame overturning driving shafts, namely: two ends of the foot frame overturning driving shaft are arranged on the foot frame connecting arm on the corresponding side, and the corresponding end of the foot frame overturning driving arm is arranged on the foot frame overturning driving shaft.

6. The multi-functional nursing bed of claim 1, wherein the mounting structure of the extension frame and the foot frame comprises: the device comprises a foot frame, at least two guide wheels and extension frame sliding grooves, wherein the extension frame sliding grooves are formed in two sides of the foot frame, the two sides of the extension frame are respectively provided with at least two guide wheels matched with the extension frame sliding grooves in the corresponding sides of the foot frame, and the guide wheels on the extension frame are arranged in the extension frame sliding grooves in the corresponding sides of the foot frame in a sliding mode.

7. The multifunctional nursing bed as claimed in claim 2, wherein the damper means for the guardrail is a gas spring, one end of the gas spring for the guardrail is movably hinged to the middle frame, the supporting frame for the guardrail is provided with a damping strut, and the other end of the gas spring for the guardrail is movably hinged to the damping strut.

8. The multi-functional care bed of claim 2, wherein the guardrail support comprises: a pair of guardrail support plates parallel to each other; the latch hook mounting bracket include: the guardrail supporting connecting rod is connected with the guardrail supporting plate, and a pair of latch hook support lugs is arranged on the guardrail supporting connecting rod; the latch hook mounting pin is disposed in the pair of latch hook lugs.

9. The multi-functional care bed of claim 2, wherein said locking bar mounting bracket comprises: the locking rod support connecting rod is arranged between the pair of locking rod support plates, a pair of locking rod support lugs are arranged on the locking rod support connecting rod, and the locking rod is arranged in the pair of locking rod support lugs.

10. The multifunctional nursing bed of any one of claims 1 to 9, wherein the bottom frame is provided at four corners thereof with universal wheels, the universal wheels are provided with brake mechanisms, and the bottom frame is provided at two sides thereof with a brake link connecting the brake mechanisms of the two universal wheels at the same side.