CN211633997U - Extension bed and medical nursing bed thereof - Google Patents

Abstract

The utility model discloses an extend bed and medical nursing bed thereof, its medical nursing bed is including nursing bed, extension bed, stretcher module, and its nursing bed, extension bed have raising and lowering functions to can descend to the bed surface below that the patient couched, with the convenience with patient's transport to nursing bed, extend on the bed. The stretcher module is provided with the conveying belt, so that the patient can be moved into or out of the stretcher module through the conveying belt, and the patient can be conveniently carried. In addition, the stretcher module is detachably designed, so that the stretcher module can be detached to be used as a stretcher, and the stretcher module is convenient and quick to use and suitable for different use environments. The utility model discloses a set up the mode of conveyer belt, liftable, can descend the conveyer belt to be less than the bed surface below that the patient counted to on moving patient to conveyer belt one side through one, then start the conveyer belt and can move the patient smoothly to nursing bed, thereby use manpower sparingly, reduce nursing staff's intensity of labour moreover.

Description

Extension bed and medical nursing bed thereof

Technical Field

The utility model relates to a medical instrument especially relates to an extend bed and medical nursing bed thereof.

Background

Medical care beds are mainly used for lying a patient and generally have a movable design, thereby facilitating the carrying of the lying patient. Most of the existing nursing beds are integrated, namely, a plurality of universal wheels are added on the bottom of a single bed, and the nursing bed is transported through the universal wheels.

And utility model people discover in long-term nursing practice that what is engaged in nursing at present, the worker is mainly the women, and physical power is all relatively weak, and when carrying to patients such as coma, paralysis, if not on nursing bed, need lift up it and put on nursing bed. And the weight of an adult is at least about 50 kilograms, so that two female nurses are difficult to move, and the adult is more stranded when the hands are insufficient. However, the nursing staff has to put on the scalp hard for work, which causes muscle strain due to long-term over-exertion of the nursing staff and easily causes bruising and bruising of the patient.

To this end, the utility model considers that, with the arrival of the aging society at present, the nursing staff will be more and more insufficient, and the nursing staff of the male sex will further reduce, therefore how to carry the patient to the nursing bed is a big problem. If a person can take a handle in a place with many people such as a large medical institution, in the scenes of home care, a small medical institution, a small nursing institution and the like, once a patient gets ill, the patient can only wait until an ambulance arrives and then carry the patient by assistance of the ambulance, so that the precious rescue time is obviously lost.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the technical problem to be solved in the present invention is to provide an extension bed and a medical nursing bed thereof, wherein the extension bed can be lifted and lowered to the lower part of the bed surface of the patient lying so as to move the patient to the nursing bed.

In order to achieve the above purpose, the utility model provides an extension bed, characterized by: the extension lifting device comprises an extension base, wherein two extension hinged plates which are arranged in parallel are fixed at the top of the extension base, the two extension hinged plates are respectively assembled with a first extension lifting shaft, the first extension lifting shaft is hinged with one end of a first extension lifting plate, the middle part and the other end of the first extension lifting plate are respectively hinged with the middle part and one end of a second extension lifting plate through a second extension pin and a first extension pin, and the other end of the second extension lifting plate is hinged with the second extension lifting shaft;

the second extension lifting shaft is circumferentially and rotatably arranged on the extension lifting driving block, the extension lifting driving block is respectively sleeved outside the second lifting screw and the second lifting guide shaft, and the extension lifting driving block is assembled with the second lifting screw in a threaded screwing manner and assembled with the second lifting guide shaft in an axial sliding manner; the two ends of the second lifting screw and the second lifting guide shaft are respectively assembled with the telescopic fixed block and the end fixed block in a circumferential rotating and non-axial moving manner, and the telescopic fixed block and the end fixed block are respectively fixed at the top of the extension base;

and the ends, close to the telescopic rods, of the second lifting screw and the second lifting guide shaft are respectively provided with a lifting screw insertion hole, a lifting screw guide hole, and the lifting screw insertion hole and the lifting screw guide hole are respectively assembled with the corresponding telescopic rods in an insertion manner.

Preferably, the first extension lifter plate and the second extension lifter plate respectively have a plurality of blocks, two ends of each first extension lifter plate are respectively hinged with one end of the second extension lifter plate close to the first extension lifter plate through a first extension pin, the middle parts of the first extension lifter plate and the second extension lifter plate are hinged through a second extension pin, the first extension lifter plate and the second extension lifter plate positioned at the top are respectively hinged with the extension top plate hinge block through a third extension pin, and the extension top plate hinge block is fixed on the extension top plate.

Preferably, still be fixed with two at least extension grafting pieces on the extension roof top surface, be provided with the extension grafting draw-in groove on the extension grafting piece, the nursing grafting draw-in groove be used for with the assembly of pegging graft of fossil fragments grafting piece one end on the stretcher module.

Preferably, the device also comprises a backup plate mechanism, wherein the backup plate mechanism comprises a backup plate and two side protection plates which are arranged in parallel, a clamping plate, a handle plate and a rotating shaft plate are fixed on the backup plate, a plurality of clamping grooves are formed in the clamping plate along the length direction of the clamping plate, the handle plate and the rotating shaft plate are respectively positioned at two ends of the backup plate in the length direction, and the handle plate is used for conveniently pulling out the backup plate; the sliding rotating shaft is installed on the rotating shaft plate, the sliding rotating shaft is sleeved outside and installed in a circumferential rotating mode, the shaft sleeve is clamped in the shaft sleeve sliding groove and assembled with the shaft sleeve sliding groove in a sliding and/or circumferential rolling mode, the shaft sleeve sliding groove is formed in the side protection plate, and the side protection plate is fixed on the extension top plate;

the side guard plates are provided with side support shafts in a circumferential rotating mode, one ends, far away from the nursing bed, of the side guard plates, the side support shafts are fixedly sleeved outside the part, located between the two side guard plates, of the side support shafts, the side support shafts are fixedly arranged at one ends of the side support plates, the other ends of the side support plates are fixedly provided with side support rods, and the side support rods can be clamped into the clamping and fixing grooves.

Preferably, the side guard plate is further assembled and fixed with the inner support plate, a lower supporting plate part is arranged on the inner support plate, a backup plate is clamped between the lower supporting plate part and the extension top plate and between the lower supporting plate part and the side guard plate, and the backup plate is assembled in a sliding mode.

Preferably, two ends of the side supporting shaft respectively penetrate through the side guard plate and then are assembled and fixed with the locking wheel, the locking wheel is provided with a locking groove, and the locking groove can be assembled and matched with the locking plate, so that the side supporting shaft is fixed in the circumferential direction; the locking plate is far away from one end of the locking groove and clamped into the locking shell and can be assembled with the locking shell in a sliding mode, a locking through groove is formed in the locking shell, a locking driving block is arranged at the position, corresponding to the locking through groove, of the locking plate, and one end of the locking driving block penetrates through the locking through groove.

Preferably, the position locking plate is provided with a position locking slide hole, the position locking slide hole and the position locking guide shaft are assembled in an axially sliding mode, one end, far away from the position locking slide hole, of the position locking guide shaft penetrates out of the position locking shell and then is assembled and fixed with the position locking nut, a position locking pressure spring is sleeved on a part, located between the position locking shell and the position locking plate, of the position locking guide shaft, and the position locking pressure spring is used for generating elastic force for pushing the position locking plate to the position locking groove.

Preferably, the backup plate is further provided with a storage vertical plate, the storage vertical plate is fixedly provided with a storage spring plate, the storage spring plate is assembled with one end of a storage spring, the other end of the storage spring is assembled with one end of a storage clamping plate, the other end of the storage clamping plate is provided with an anti-falling bulge, the middle part of the storage clamping plate is hinged to the storage vertical plate through a storage pin, and the side supporting rod is clamped on the part of the storage clamping plate, which is located between the anti-falling bulge and the storage vertical plate.

The utility model also discloses a medical nursing bed, its application has above-mentioned extension bed.

Preferably, the nursing bed and the stretcher module are also included.

The utility model has the advantages that:

1. the utility model discloses a set up the mode of conveyer belt, liftable, can descend the conveyer belt to be less than the bed surface below that the patient counted to on moving patient to conveyer belt one side through one, then start the conveyer belt and can move the patient smoothly to nursing bed, thereby use manpower sparingly, reduce nursing staff's intensity of labour moreover.

2. The utility model discloses a conveyer belt setting is on the stretcher module, and the stretcher module can be dismantled, consequently in emergency, can dismantle the back with the stretcher module and regard as the stretcher to use alone to be applicable to different service environment, if there is not the floor of elevator, the place that the nursing car can't pass through smoothly.

3. The utility model discloses can be through the length of the whole nursing bed of extension bed extension, and extend the total length between bed and the nursing bed and can also transfer, this patient that can be applicable to different heights, and with the motor, electric equipment such as battery is whole integrated on nursing bed, can pull down nursing bed and change when nursing bed breaks down, thereby do not influence normal use, and extend the bed and be pure mechanical structure, its fault rate is low, it is real durable, at large-scale medical institution, when needing a large amount of uses in the nursing institution, can prepare some extension beds less, and prepare some nursing beds more, because nursing bed needs to charge, the maintenance, thereby reduce purchasing cost and later stage and overhaul, the maintenance cost.

Drawings

Fig. 1-4 are schematic structural diagrams of the present invention.

Fig. 5 is a sectional view a-a in fig. 4.

Fig. 6 is a sectional view taken along line B-B in fig. 4.

Fig. 7 is an enlarged view at F5 in fig. 6.

Fig. 8 is a cross-sectional view C-C in fig. 4.

Fig. 9 is a cross-sectional view taken along line M-M in fig. 4.

Fig. 10 is a cross-sectional view (partial) taken along line D-D in fig. 4.

Fig. 11 is a cross-sectional view E-E of fig. 5.

Fig. 12 is an enlarged view at F6 in fig. 11.

Fig. 13 is a sectional view F-F in fig. 11.

Fig. 14 is an enlarged view at F7 in fig. 13.

Fig. 15 is a sectional view (partial) taken along line H-H in fig. 4.

Fig. 16 is a sectional view taken along line J-J of fig. 8.

Fig. 17-20 are enlarged views of fig. 4 at F1, F2, F3, and F4, respectively.

Fig. 21 is a schematic structural view of the present invention (the backup plate is unfolded and cut away from the axis of the screw).

Fig. 22 is a sectional view taken along line G-G in fig. 21.

Fig. 23-24 are schematic structural views of the stretcher module of the present invention.

Fig. 25 is a schematic view of the structure of the nursing bed and the extension bed of the present invention.

Fig. 26 is a schematic structural view of the fence of the present invention in the folded state.

Fig. 27 is a schematic diagram of the structure of the conveyor belt motor of the present invention.

Fig. 28 is a schematic structural view of the stretching plate of the present invention.

Fig. 29 is a schematic view of the structure of the nursing base of the present invention.

Fig. 30-31 are schematic structural views of the backup plate mechanism of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 31, the medical nursing bed of the present embodiment includes a nursing bed a, a stretcher module C, and an extension bed B, the nursing bed a includes a nursing base a110, two nursing hinge plates a120 mounted in parallel are fixed on a top surface of the nursing base a110, the two nursing hinge plates a120 are respectively assembled with a first nursing lifting shaft a321, the first nursing lifting shaft a321 is hinged to one end of a first nursing lifting plate a131, a middle portion and the other end of the first nursing lifting plate a131 are respectively hinged to a middle portion and one end of a second nursing lifting plate a132 through a second nursing pin a332 and a first nursing pin a331, and the other end of the second nursing lifting plate a132 is hinged to a second nursing lifting shaft a 322. In the present embodiment, the first nursing lifting plate a131 and the second nursing lifting plate a132 are the same components, and are distinguished for convenience of description, and therefore, the reference numerals do not strictly distinguish the first nursing lifting plate from the second nursing lifting plate.

The second nursing lifting shaft A322 is circumferentially and rotatably arranged on a nursing lifting driving block A170, the nursing lifting driving block A170 is respectively sleeved outside the first lifting screw A350 and the first lifting guide shaft A340, and the nursing lifting driving block A170 and the first lifting screw A350 are assembled in a screwing mode through threads and assembled with each other in an axial sliding mode through the first lifting guide shaft A340; the two ends of the first lifting screw A350 and the first lifting guide shaft A340 are respectively assembled with the first base fixing block A150 and the second base fixing block A160 in a circumferential rotating and non-axial moving mode, and the first base fixing block A150 and the second base fixing block A160 are respectively fixed to the top of the nursing base A110. When the nursing lifting device is used, the nursing lifting driving block A170 can be driven to move along the axis by rotating the first lifting screw A350, so that the distance between the first nursing lifting plate A131 and the second nursing lifting plate A132 is changed, namely the maximum height of the first nursing lifting plate A131 and the second nursing lifting plate A132 is changed (lifted).

The first nursing lifting plate A131 and the second nursing lifting plate A132 are respectively provided with a plurality of blocks, two ends of each first nursing lifting plate A131 are respectively hinged with one end of the second nursing lifting plate A132 close to the first nursing lifting plate A131 through a first nursing pin A331, the middle parts of the first nursing lifting plate A131 and the second nursing lifting plate A132 are hinged through a second nursing pin, the first nursing lifting plate A131 and the second nursing lifting plate A132 which are positioned at the top (closest to the nursing top plate A140) are respectively hinged with a nursing top plate hinging block A141 through a third nursing pin A333, and the nursing top plate hinging block A141 is fixed on the nursing top plate A140, so that the height of the nursing top plate A140 can be changed when the first lifting screw is driven to rotate.

The end, far away from the second base fixing block A160, of the first lifting screw A350 is fixedly sleeved with a first belt wheel A811 in a sleeved mode, the first belt wheel A811 is connected with a second belt wheel A812 through a belt A810 to form a belt transmission mechanism, the second belt wheel A812 is fixedly sleeved on a lifting driving shaft A820 in a sleeved mode, the lifting driving shaft A820 is connected with an output shaft of a lifting motor A852, and the lifting motor A852 can drive the second belt wheel A812 to rotate circumferentially after being started, so that the first lifting screw A350 is driven to rotate circumferentially, and the height of a nursing top plate is changed.

The lifting motor A852 is arranged in the nursing base A110, the nursing base A110 is also internally provided with a steering motor A851, a walking motor A853 and a battery A910, the battery A910 supplies power for all electric equipment on the nursing bed, the output shaft of the steering motor A851 is connected with a reversing shaft A830, a reversing gear A840 is sleeved and fixed on the reversing shaft A830, the reversing gear A840 is meshed with a reversing latch A3131 on the reversing rod A313 to form a gear rack transmission mechanism, two ends of the reversing rod A313 respectively penetrate out of the nursing base A110 and then are assembled with the hub A2111 in a circular rotating way (in the circumferential direction of the hub), the hub A2111 is in spherical hinge joint with the reversing wheel A211, the hub A2111 is fixed on one end of a reversing wheel shaft A311, the other end of the reversing wheel shaft A311 is assembled with the nursing base A110 in a circumferential rotating way, when in use, the reversing wheel A211 can be driven to turn by driving the reversing rod A313 to move axially, so that a steering function is obtained. This is a common technique and can directly adopt the rear wheel steering structure of the existing forklift.

The two ends of an output shaft of the walking motor A853 are respectively connected and fixed with one end of two walking wheel shafts A312, the other end of the walking wheel shaft A312 penetrates out of the nursing base A110 and then is respectively assembled and fixed with the walking wheel A212, and the walking motor can drive the walking wheel A212 to rotate after being started, so that the nursing bed A is driven to move. And the steering motor can drive the reversing gear A840 to rotate after being started, so that the reversing gear A211 is steered.

Still be fixed with two at least nursing on the nursing roof A140 top surface and peg graft piece A142, be provided with nursing on the nursing peg graft piece A142 and peg graft draw-in groove A1421, the nursing peg graft draw-in groove be used for with the fossil fragments on the stretcher module C peg graft piece C430 one end peg graft assembly to with stretcher module C and nursing bed relatively fixed in nursing bed height direction.

The nursing top plate A140 is also fixed with a control box A143 on the terminal surface facing to the nursing base, a controller and a conveyer belt motor A854 are installed in the control box, the controller is used for receiving, transmitting and analyzing control instructions, and parameter calculation and program operation are carried out, and one of MCU, PLC, industrial personal computer and CPU can be adopted in the embodiment. The output shaft of the conveyor belt motor a854 is connected with a conveying driving shaft a870, a third conveying gear C613 is fixed on the conveying driving shaft a870 in a sleeved mode, the third conveying gear C613 is in meshing transmission with a second conveying gear C612, the second conveying gear C612 is in meshing transmission with a first conveying gear C611 on the stretcher module C, the second conveying gear C612 is sleeved on a conveying middle rotating shaft a860, the conveying middle rotating shaft a860 is installed on a middle rotating side plate a144, and the middle rotating side plate a144 is fixed on the nursing top plate a 140.

The first lifting screw A350 and the first lifting guide shaft A340 are respectively provided with a hollow first screw cavity A351 and a hollow first lifting cavity A341 inside, the first screw cavity A351 and the first lifting cavity A341 are internally clamped, axially slidable and non-circumferentially rotatable with a telescopic rod A360, the top surface of the telescopic rod A360 is provided with a plurality of telescopic grooves A361, and the first elevation guiding axis A340 is provided with an axis opening A342 corresponding to the second base fixing block A160, the first elevation cavity A341 is penetrated through by the axis opening A342, the axis opening A342 is communicated with a clamping and pressing groove A161 arranged on the second base fixing block A160, the axis clamping block A540 penetrates through the axis opening A342 and then is pressed against the top surface of the expansion link A360 arranged in the first elevation guiding axis A340, and the contact surface of the shaft clamping block A540 and the telescopic rod A360 is provided with a shaft clamping block bulge A541, the shaft clamping block protrusion A541 is clamped and assembled with the telescopic groove A361 so as to relatively fix the telescopic rod A360 in the axial direction; the first lifting screw rod A350 is pressed through a pressing block A560 at the corresponding position of the clamping pressure groove A161, the pressing block A560 and the first lifting screw rod A350 can be assembled in a circumferential rotating mode, the shaft clamping block A540 and the pressing block A560 are fixed at the bottoms of different telescopic lock rods A380 respectively, the top of each telescopic lock rod A380 penetrates through a clamping pressure spring groove A531 formed in the clamping pressure plate A530 and then penetrates out of the clamping pressure plate A530 to be assembled and fixed with a telescopic large end A381, the telescopic large end cannot penetrate through the clamping pressure plate A530, and a telescopic pressure spring A520 is sleeved on a part, located between the shaft clamping block A540 or the pressing block A560 and the inner side top face of the clamping pressure spring groove A531, is used for exerting downward pressing elastic force on the shaft clamping block A540 or the pressing block A560, so that the shaft clamping block A540 is locked with a corresponding telescopic rod A360, and the pressing block A560 presses the first lifting screw rod A350. The pressing block a560 is only used for pressing the end of the first lifting screw a350, so that the first lifting screw a350 operates more stably, and in this embodiment, the pressing block a560 may not be provided.

One end of the clamping plate A530 is hinged to the second base fixing block A160 through a first clamping pressure shaft A371, a clamping pressure protruding portion A532 is arranged at the other end of the clamping plate A530, one end, close to the clamping pressure protruding portion A532, of the clamping plate A530 is assembled with the second base fixing block A160 through a clamping pressure locking pin A372, and therefore the clamping plate A530 is pressed towards the bottom of the clamping pressure groove A161, and the shaft clamping block A540 is guaranteed to be locked with the corresponding telescopic rod A360. When the locking needs to be released, the clamping and pressing locking pin a372 is firstly pulled out of the second base fixing block a160 and the clamping and pressing plate a530, then the clamping and pressing convex part a532 drives the clamping and pressing plate a530 to rotate upwards by taking the first clamping and pressing shaft a371 as the center until the shaft clamping block a540 exits from the shaft opening a342, and at the moment, the telescopic rod can be pulled axially.

One end of the telescopic rod A360, which is close to the extension bed B, penetrates out of the second base fixing block A160 and then is assembled and fixed with the telescopic insertion plate A510, a bearing A362 is installed at the assembly position of the telescopic insertion plate A510 and the first lifting screw A350, and the shaft A362 is used for enabling the telescopic insertion plate A510 and the first lifting screw A350 to be assembled in a circumferential rotating mode; the end of the telescopic rod A360 penetrates out of the telescopic inserting plate A510, a telescopic inserting part A511 is arranged on the telescopic inserting plate A510, a telescopic inserting clamping groove A512 is arranged on the telescopic inserting plate part A511, the telescopic inserting plate part A511 is inserted into a telescopic inserting groove A131 of a telescopic fixing block B130 of the extension bed B and is assembled with the telescopic inserting groove A131 in a clamping manner, the telescopic inserting clamping groove A512 is assembled with a telescopic clamping block B230 in a clamping manner, the telescopic clamping block B230 is fixed on one end of a telescopic clamping block shaft B360, the other end of the telescopic clamping block shaft B360 penetrates through a telescopic clamping block groove B132 and a telescopic unlocking plate B170 and is assembled and fixed with a telescopic screw limiting end B361 after penetrating out of the telescopic fixing block B130, and the telescopic clamping block groove B132 is arranged on the telescopic fixing block B;

the telescopic limiting end B361 cannot penetrate through the telescopic fixing block B130, a telescopic fixture block pressure spring B220 is sleeved on a part, located between the end faces of the telescopic fixture block B230 and the telescopic fixture block groove B132, of the telescopic fixture block shaft B360, the telescopic fixture block pressure spring B220 is used for generating downward pressing elasticity on the telescopic fixture block B230, so that the telescopic fixture block is in clamping assembly with the telescopic insertion groove a512, and a telescopic handle B171 is fixed on the telescopic unlocking plate B170. When the telescopic bed is used, the telescopic unlocking plate B170 is pressed by the telescopic handle, so that the telescopic fixture block B230 overcomes the tensile force of the elastic force of the telescopic fixture block pressure spring B220 to move towards the direction away from the telescopic inserting groove A512, until the telescopic fixture block B230 is pulled out of the telescopic inserting groove A512, and the connection relation between the extension base B110 of the extension bed B and the nursing base can be released.

The control box A143 is installed outward still to be installed lift knob C313, lift knob is used for controlling lift motor A852's running state, and in this embodiment, lift motor A852 passes through lift motor driver drive, and lift knob C313 control encoder's signal input, and the signal input controller that the encoder acquireed, controller send control command in order to control lift motor's operation to lift motor driver. Therefore, the turning of the lifting motor A852 can be controlled by rotating the lifting knob C313, and the start and stop of the lifting motor A852 can be controlled by pressing the lifting knob C313, thereby controlling the height of the nursing top plate, that is, the height of the whole nursing bed. This is only one option, and the start, stop, steering, and operation states of the lift motor may be controlled by the lift knob C313.

Preferably, the nursing plug block a142 is further provided with a nursing plug hole a1422, and the nursing plug hole a1422 is used for being electrically connected with the conductive plug column C480 in a plug manner, so that current transmission and signal transmission are realized.

The extension bed B comprises an extension base B110, two extension hinged plates B120 which are arranged in parallel are fixed at the top of the extension base B110, the two extension hinged plates B120 are respectively assembled with a first extension lifting shaft B321, the first extension lifting shaft B321 is hinged with one end of a first extension lifting plate B161, the middle part and the other end of the first extension lifting plate B161 are respectively hinged with the middle part and one end of a second extension lifting plate B162 through a second extension pin B332 and a first extension pin B331, and the other end of the second extension lifting plate B162 is hinged with a second extension lifting shaft B322. In the present embodiment, the first extension lifting plate B161 and the second extension lifting plate B162 are the same components, and are distinguished for convenience of description, and therefore, the reference numerals do not strictly distinguish the first extension lifting plate from the second extension lifting plate.

The second extending lifting shaft B322 is circumferentially and rotatably arranged on the extending lifting driving block B140, the extending lifting driving block B140 is respectively sleeved outside the second lifting screw B350 and the second lifting guide shaft B340, and the extending lifting driving block B140 and the second lifting screw B350 are assembled in a screwing way through threads and can be axially assembled with the second lifting guide shaft B340 in a sliding way; the two ends of the second lifting screw B350 and the second lifting guide shaft B340 are respectively assembled with the telescopic fixing block B130 and the end fixing block B150 in a manner of circumferential rotation and axial movement, and the telescopic fixing block B130 and the end fixing block B150 are respectively fixed on the top of the extension base B110. When the lifting device is used, the extending lifting driving block B140 can be driven to move along the axis by rotating the second lifting screw B350, so as to change the distance between the first extending lifting plate B161 and the second extending lifting plate B162, that is, the maximum heights of the first extending lifting plate B161 and the second extending lifting plate B162 can be changed (lifted).

The first extending lifting plate B161 and the second extending lifting plate B162 are respectively provided with a plurality of first extending lifting plates B161, two ends of each first extending lifting plate B161 are respectively hinged with one end of the second extending lifting plate B162 close to the first extending lifting plate B161 through a first extending pin B331, the middle parts of the first extending lifting plate B161 and the second extending lifting plate B162 are hinged through a second extending pin B332, the first extending lifting plate B161 and the second extending lifting plate B162 positioned at the top (closest to the extending top plate B180) are respectively hinged with an extending top plate hinge block B181 through a third extending pin B333, and the extending top plate hinge block B181 is fixed on the extending top plate B180, so that the height of the extending top plate B180 can be changed when the second lifting screw is driven to rotate.

Still be fixed with two at least extension grafting piece B182 on the extension roof B180 top surface, be provided with extension grafting draw-in groove B1821 on the extension grafting piece B182, the nursing grafting draw-in groove is used for inserting the assembly with fossil fragments grafting piece C430 one end on the stretcher module C to it is relatively fixed with the extension bed with stretcher module C in the nursing bed height direction.

One ends of the second lifting screw B350 and the second lifting guide shaft B340, which are close to the telescopic rod A360, are respectively provided with a lifting screw insertion hole B351 and a lifting screw guide hole B341, and the lifting screw insertion hole B351 and the lifting screw guide hole B341 are respectively inserted and assembled with the telescopic rod A360 corresponding to the lifting screw insertion hole B351, so that the second lifting screw B350 and the second lifting guide shaft B340 are respectively assembled with the first lifting screw A350 and the first lifting guide shaft A340 in a non-relatively rotatable manner in the circumferential direction and are coaxially or closely installed.

In this embodiment, the extension bed B is almost identical to the nursing bed a, and particularly, the lifting structure thereof is substantially or completely identical to the assembling structure of the stretcher module. When the nursing bed is used, the first lifting screw A350 rotates to drive the second lifting screw B350 to synchronously rotate, so that the extension bed B and the nursing bed A are ensured to synchronously lift, namely the extension top plate B180 and the nursing top plate A140 are ensured to be kept at the same height.

The extension bed B further comprises a backup plate mechanism, the backup plate mechanism comprises a backup plate B610 and two side guard plates B620 which are arranged in parallel, a clamping plate B611, a handle plate B612 and a rotating shaft plate B613 are fixed on the backup plate B610, a plurality of clamping grooves B6111 are formed in the clamping plate B611 along the length direction of the clamping plate B, the handle plate B612 and the rotating shaft plate B613 are respectively located at two ends of the backup plate B610 in the length direction, and the handle plate B612 is used for facilitating pulling out of the backup plate; the rotating shaft plate B613 is provided with a sliding rotating shaft B680, the sliding rotating shaft B680 is externally sleeved with a shaft sleeve B670 in a circumferential rotating manner, the shaft sleeve B670 is clamped in a shaft sleeve sliding groove B621 and is assembled with the shaft sleeve sliding groove B621 in a sliding and/or circumferential rolling manner, the shaft sleeve sliding groove B621 is arranged on a side protection plate B620, and the side protection plate B620 is fixed on the extension top plate B180. Referring to fig. 15, the side guard plate B620 is further assembled and fixed with an inner supporting plate B630, a lower supporting plate part B631 is arranged on the inner supporting plate B630, the backup plate B610 is clamped between the lower supporting plate part B631 and the extension top plate B180 and the side guard plate B620, and the backup plate B610 is slidably assembled (slides along the sleeve chute B621);

a side support shaft B650 is arranged at one end, far away from the nursing bed A, of the side protection plate B620 in a circumferential rotating manner, two ends of the side support shaft B650 penetrate through the side protection plate B620 and then are assembled and fixed with a locking wheel B640, a locking groove B641 is arranged on the locking wheel B640, a side support cylinder B661 is fixedly sleeved on a part, located between the two side protection plates B620, of the side support shaft B650, the side support cylinder B661 is fixed at one end of a side support plate B660, a side support rod B662 is fixed at the other end of the side support plate B660, and the side support rod B662 can be clamped into a clamping groove B6111, so that the pulled and rotated backup plate B610 is supported;

the locking groove B641 may be snap-fitted with the locking plate B710, thereby fixing the side supporting shaft B650 in the circumferential direction; one end of the locking plate B710, which is far away from the locking groove B641, is clamped into the locking shell B720 and slidably assembled with the locking shell B720, a locking through groove B721 is arranged on the locking shell B720, a locking driving block B712 is arranged at a position of the locking plate B710, which corresponds to the locking through groove B721, and one end of the locking driving block B712 penetrates through the locking through groove B721. In use, the locking plate B710 can be driven away from the locking groove B641 by the locking driving block B712, so that the locking plate B710 can be withdrawn from the locking groove B641, i.e., the locking of the side support shaft B650 can be released.

The locking plate B710 is provided with a locking sliding hole B711, the locking sliding hole B711 and the locking guide shaft B730 can be axially assembled in a sliding mode, one end, far away from the locking sliding hole B711, of the locking guide shaft B730 penetrates through the locking shell B720 and then is assembled and fixed with a locking nut B731, the locking nut B731 cannot penetrate through the locking shell B720, a locking pressure spring B740 is sleeved on a part, located between the locking shell B720 and the locking plate B710, of the locking guide shaft B730, and the locking pressure spring B740 is used for generating elastic force for pushing the locking plate B710 to the locking groove B641. In an initial state, the locking groove B641 is not assembled with the locking plate B710, and after the locking wheel rotates and the locking groove B641 is aligned with the locking plate B710, the locking plate B710 is clamped into the locking groove B641 by the locking compression spring, so that the locking wheel is fixed in the circumferential direction.

In the initial state, the backup plate B610 is in the position of fig. 4, which is located below the extension top plate B180. When the backup plate needs to be used, the backup plate is pulled out through the handle plate B612, and at the moment, the shaft sleeve moves towards the locking plate B710 along the shaft sleeve sliding groove B621 until the backup plate can rotate upwards. Then the backup plate is rotated to a proper angle, the side support plate B660 is rotated, the side support plate B660 drives the side support shaft B650 to rotate circumferentially until the locking groove B641 is clamped with the locking plate B710, and then the backup plate is adjusted to enable the side support rod B662 to be clamped into the clamping groove B6111, so that the backup plate is supported.

The design of the backup plate can provide support for a part of patients who need to lie half and lift up above the shoulder, thereby meeting more requirements. In addition, after the backup plate is opened, the risk that the patient slips off from the backup plate can be reduced for the patient on the downhill road section.

Preferably, in order to accommodate the backup plate and the side support plate in the state of fig. 4, the applicant further installs an accommodating vertical plate B760 on the backup plate B610, an accommodating spring plate B761 is fixed on the accommodating vertical plate B760, the accommodating spring plate B761 is assembled with one end of the accommodating spring B770, the other end of the accommodating spring B770 is assembled with one end of the accommodating clamping plate B740, an anti-falling protrusion B741 is provided at the other end of the accommodating clamping plate B740, the middle part of the accommodating clamping plate B740 is hinged to the accommodating vertical plate B760 through an accommodating pin B750, the side support rod B662 is clamped on the part of the accommodating clamping plate B740 located between the anti-falling protrusion B741 and the accommodating vertical plate B760, so that on one hand, the pulling out of the backup plate can be hindered, and on the other hand, the side support rods B662. When the backup plate needs to be pulled out, the storage clamping plate B740 is firstly rotated downwards against the elastic force of the storage spring B770, and the backup plate can be pulled out and the side support plate can be rotated until the storage clamping plate B740 is separated from the side support rod B662. When the side support rod needs to be stored, the side support rod B662 pushes the storage clamping plate B740 to rotate upwards, and the side support rod B662 is released after the side support rod B662 passes through the storage clamping plate B740, so that the side support rod B662 is arranged in the part, located between the anti-falling boss B741 and the storage vertical plate B760, of the storage clamping plate B740, and storage is completed.

The stretcher module C comprises at least two stretcher keels C110 which are arranged in parallel, the two stretcher keels C110 are respectively fixed on a stretcher bottom plate C130, the end parts of the stretcher keels C110 are also fixedly provided with holding parts C120, and the holding parts C120 are used for enabling a user to hold so as to lift the stretcher or push the nursing bed.

The two holding parts C120 close to one side of the lifting knob C313 are respectively provided with a control handle C311 and a reversing button C312, the two control handles C311 are respectively used for controlling the starting and stopping of the walking motor, the two reversing buttons C312 are respectively used for controlling the starting, stopping and steering of the steering motor, namely when one reversing button C312 is triggered, the steering motor is started, but the rotating direction of the steering motor is judged according to the triggered button, so that the steering of the nursing bed is controlled. This is the prior art, and the present case is not described again.

At least two parallel roller shaft support plates C131 are respectively arranged at two ends of the stretcher bottom plate C130, the roller shaft support plates C131 are respectively assembled with the two conveying shafts C230 in a circumferential rotating mode, conveying rollers C321 are respectively sleeved and fixed outside the two conveying shafts C230, and the two conveying rollers C321 are connected through a conveying belt C320 to form a belt transmission mechanism;

one end of one of the conveying shafts C230, which is close to the control handle C311, penetrates through the corresponding roller shaft support plate C131 and is fixedly assembled with the first conveying gear C611, and when the conveying belt is used, the conveying belt motor is started, so that the first conveying gear C611 and the conveying shaft C230 are driven to rotate circumferentially to drive the conveying belt C320 to move, and therefore, a patient can be moved to the middle or the edge of a nursing bed, and the patient can be moved to the nursing bed or moved out of the nursing bed. Specifically, when a patient needs to be moved to a nursing bed, the top surface of the conveying belt is firstly lowered to the position below a bed surface where the patient lies, then the patient is moved to one side of the conveying belt, the conveying belt motor is started, and the conveying belt motor drives the conveying belt to move the patient to the middle position of the conveying belt, namely the middle position of the nursing bed is used for completing the movement of the patient. The design can be completed by only one person, so that the labor can be greatly saved. In addition, for the convenience of operation, the starting, stopping, steering and the like of the conveyor belt motor can be controlled in a wireless remote control mode, which is the prior art and can refer to the related design of the existing remote control toy car.

Preferably, in actual use, the stretcher module needs to be properly extended according to the height of a patient so as to ensure effective support for the patient, for this applicant, an extension plate C730 capable of being pulled out is further designed, one end of the extension plate C730 is fixedly assembled with an extension clamping plate C160, the other end of the extension plate C730 is clamped into an extension chute C701, the extension chute C701 is arranged between a first support plate C710 and a second support plate C720 or between two second support plates C720, the first support plate C710 and the second support plate C720 are respectively fixed on an axle support plate C131 or fixedly assembled with a stretcher bottom plate C130 through an adapter plate, and the first support plate C710 and the second support plate C720 are located between the conveyer belts C320, that is, the conveyer belts C320 are wrapped outside the first support plate C710 and the second support plate C720;

a first engaging sliding groove C711 and a second engaging sliding groove C724 are respectively arranged on the sides of the first support plate C710 and the second support plate C720, which are in contact with the extension plate C730, and an extension sliding bar C732 which is engaged with the first engaging sliding groove C711 and the second engaging sliding groove C724 respectively and can be assembled in a sliding manner is arranged on the extension plate C730. When the stretcher is used, the extension sliding strip C732 is respectively clamped and assembled with the first clamping sliding groove C711 and the second clamping sliding groove C724, so that the total length between the extension plate C730 and the stretcher bottom plate C130 is adjusted.

A plurality of extension grooves C731 are arranged on the outer wall of the extension slide bar C732, and the extension grooves C731 can be clamped and assembled with extension protrusions C751 on the extension locking plate C750, so that the extension plate C730 and the stretcher bottom plate are relatively fixed in the length direction of the extension plate. The extension locking plate C750 is clamped in the locking plate through groove C723, one end of the extension locking plate C750 is hinged with the bottom surface of the locking plate through a locking plate hinge pin C270, the extension locking plate C750 can slide in the locking plate through groove C723, the inner side of one end, far away from the locking plate hinge pin C270, of the extension locking plate C750 is provided with a locking plate inclined plane C753, and a locking plate spring hole C752 is arranged at a position close to the locking plate hinge pin C270;

the extension locking plate C750 has two and two locking plate spring holes C752 of the extension locking plate C750 are closed by a plug screw C760, the two plug screws C760 are connected by a plug screw tension spring C770, and the plug screw tension spring C770 is installed in the locking plate spring hole C752 and is used for generating a mutually tensioned elastic force to the two extension locking plates C750. The lock plate inclined planes C753 of the two extended lock plates C750 are respectively tightly attached to the wedge-shaped inclined plane C771 of the wedge-shaped block C770, the wedge-shaped block C770 is fixed on a wedge-shaped sliding block C772, the wedge-shaped sliding block C772 is installed at one end of an unlocking sliding shaft C260, the other end of the unlocking sliding shaft C260 is sleeved with a jacking pressure spring C780 and then penetrates through a sliding shaft hole C721 and a sliding shaft pull plate C740, one end of the unlocking sliding shaft pull plate C740 penetrates through a sliding shaft nut C261 to be assembled and fixed, and a sliding shaft pull plate handle C741 is arranged on the sliding shaft pull plate C740. The tightening pressure spring C780 is used for generating an elastic force for pushing the wedge block C772 towards the wedge block C770, so that the wedge block C770 drives the two extension locking plates C750 to be unfolded outwards against the elastic force of the plug screw tension spring C770, so that the extension locking plate C750 is pressed against the extension plate C730, and the extension plate C730 is fixed in a clamping manner. In this embodiment, the top surfaces of the first support plate C710, the second support plate C720 and the extension plate C730 are slightly lower than the bottom surface of the conveyor belt, so that the patient can be supported, and therefore the patient can press the conveyor belt after lying on the conveyor belt, so that a recess is formed in the middle of the conveyor belt, and the bottom of the recess is supported by the top surfaces of the first support plate C710, the second support plate C720 and the extension plate C730. The design is to ensure that the conveyer belt is not broken by large pulling force on one hand, and the formed dent of the conveyer belt can make the patient more comfortable on the other hand.

The sliding shaft hole C721, the locking plate chute C722 and the locking plate through groove C723 are all arranged on the second support plate C720, and the two ends of the first support plate C710 and the second support plate C720 are further assembled and fixed with the stretcher bottom plate C130 through a support connecting plate C132, and the support connecting plate C132 is fixed on the stretcher bottom plate C130.

When the extension plate C730 needs to be pulled out, the slide shaft pulling plate C740 is pulled only through the slide shaft pulling plate handle C741, so that the slide shaft pulling plate C740 drives the unlocking slide shaft C260 to overcome the elastic force of the jacking pressure spring C780 and move towards the direction away from the extension locking plate C750, the wedge-shaped block is made to exit from the locking plate inclined plane C753, at the moment, the two extension locking plates C750 are close to each other under the elastic force of the plug screw tension spring C770, the extension locking plate C750 is made not to press and contact with the extension plate C730, and at the moment, the extension plate can be pulled out.

Preferably, in order to prevent the embarrassing situation that the sliding shaft pulling plate needs to be pulled outwards by one hand and the extension plate needs to be adjusted by the other hand, the applicant further installs a limiting shell C810 below the sliding shaft pulling plate C740 (the limiting shell C810 can be fixed on the support connecting plate C132), a limiting block sliding groove C812, a limiting spring groove C811 and a limiting unlocking groove C813 are respectively arranged inside the limiting shell C810, the limiting block sliding groove C812, the limiting spring groove C811 and the limiting unlocking groove C813 are mutually communicated, the limiting spring groove C811 is clamped with a limiting block large end C821 and can be assembled in a sliding manner, a limiting block pressure spring C830 is installed between the limiting block large end C821 and the bottom surface of the limiting spring groove C811, the limiting block pressure spring C830 is used for generating an upward pushing elastic force on the limiting block C820, a limiting block unlocking end C822 is fixed on the limiting block large end C821, and the limiting block unlocking end C822 penetrates through the limiting unlocking groove C813 and can slide in the limiting unlocking; the limiting block C820 is further provided with a limiting block inclined plane C823, one end of the limiting block, which is provided with the limiting block inclined plane C823, penetrates out of the limiting block sliding groove C812 and is clamped and assembled with the limiting block sliding groove C812 in a sliding mode, the limiting block inclined plane C823 can be attached to a sliding shaft pull plate inclined plane C742, and the sliding shaft pull plate inclined plane C742 is arranged on the sliding shaft pull plate C740. When the slide shaft pulling plate is pulled out, the slide shaft pulling plate inclined plane C742 is attached to the limiting block inclined plane C823, so that the limiting block is driven to overcome the elasticity of the limiting block pressure spring C830 and move downwards, the slide shaft pulling plate is released after penetrating through the limiting block C820, the limiting block moves upwards under the action of the elasticity of the limiting block pressure spring C830 at the moment, the slide shaft pulling plate is prevented from penetrating, the wedge block cannot reset, and at the moment, only the extension plate needs to be pulled. When the extension plate needs to be locked again, the limiting block is driven to move downwards through the limiting block unlocking end C822 until the limiting block does not block the sliding shaft pulling plate, the sliding shaft pulling plate and the wedge-shaped block reset at the moment, and then the limiting block unlocking end C822 is released to enable the limiting block to reset.

The stretcher framework C110 is further provided with a framework shaft hole C111, a framework insertion groove C112, a framework sliding groove C113 and a framework driving groove C114 respectively, the framework insertion groove C112 is used for being inserted and assembled with the nursing insertion block A142, a framework extension shaft C220 is installed inside the framework shaft hole C111, the framework extension shaft C220 can slide axially and penetrates out of one end of the stretcher framework C110 to be assembled and fixed with the extension clamping plate C160, and the framework extension shaft C220 penetrates out of the extension clamping plate C160;

fossil fragments inserting groove C112, fossil fragments spout C113, fossil fragments drive groove C114 communicate in proper order, and fossil fragments inserting piece C430 is installed to block, slidable in the fossil fragments annular C113, fossil fragments inserting piece C430 one end clamps and inserts in nursing inserting draw-in groove A1421, the other end and inserting piece pull shaft C440 one end assembly fixed, and inserting piece pull shaft C440 other end suit inserting piece pressure spring C450 just passes and gets into fossil fragments drive groove C114 and stay cord C460 one end assembly fixed behind fossil fragments spout C113, the stay cord C460 other end passes fossil fragments stud C411 after with another inserting piece pull shaft C440 assembly fixed or the stay cord C460 other end snap-on fossil fragments C411, fossil fragments stud C411 sets up on fossil fragments bolt C410, fossil fragments bolt C410 cross fossil fragments drive groove C114 and with but stretcher fossil fragments C110 circumference rotation assembly, fossil fragments bolt C410 and stretcher C110 pass through the screw thread twist fit assembly in this embodiment. The insertion block compression spring C450 is used for applying an elastic force to the keel insertion block C430 to push the nursing insertion slot A1421, so that the keel insertion block C430 and the nursing insertion slot A1421 are kept clamped and assembled.

Be provided with on fossil fragments plug-in block C430 side and detect inclined plane C431, it pastes tightly with ball C470 to detect inclined plane C431, but ball C470 is installed at detection pole C420 one end spherically rollingly, wears out stretcher fossil fragments C110 behind the detection hole C115 is passed to the detection pole C420 other end to make the user can observe the tip of detecting pole C420, detect pole C420 in this embodiment and wear out stretcher fossil fragments one and serve and scribble striking pigment, thereby the more convenient to use person observes.

A stress ring C421 is arranged on the part of the detection rod C420 positioned in the detection hole C115, a detection pressure spring C490 is sleeved on the part of the detection rod C420 positioned between the stress ring C421 and the end face of the detection hole C115, and the detection pressure spring C490 is used for applying an elastic force to the detection rod C420 to push the detection inclined plane C431.

During the use, as long as fossil fragments grafting piece C430 and nursing grafting draw-in groove A1421 block assembly, detection hole C115 can be pushed out to measuring stick C420 to make the user judge the assembly state of fossil fragments grafting piece C430 and nursing grafting draw-in groove A1421, in order to prevent that stretcher fossil fragments and nursing bed are not stably assembled and cause the potential safety hazard.

When the stretcher module C needs to be detached, only the keel bolt C410 needs to be rotated, so that the keel bolt C410 is wound on the pull rope, the pull shaft C440 of the inserting block is pulled through the pull rope C460, the keel inserting block C430 overcomes the elasticity of the inserting block pressure spring C450 and exits from the nursing inserting clamping groove A1421, the stretcher module is lifted upwards at the moment, the stretcher module can be separated from the nursing bed, and the detection rod C420 retracts into the detection hole. When the stretcher keel and the extension inserting block B182 are assembled, the structure and the operation mode of the stretcher keel and the extension inserting block B182 are the same as those of the nursing inserting block, and the details are not repeated.

Preferably, the extension clamping plate C160, the support connecting plate C132 near one side of the extension bed and/or the roller shaft plate C131 are/is fixedly assembled with two ends of the elastic cloth C330, and the elastic cloth is a soft cloth with high elasticity, so that discomfort of a patient caused by direct contact of the extension plate C730 and the patient is prevented.

Preferably, the outer side of the stretcher keel C110 is respectively assembled with two ends of a bandage C210, and the bandage C210 is used for binding and fixing the patient on the stretcher module, so as to prevent the patient from sliding off.

The structure of the corresponding part of the stretcher module and the extension bed B is basically the same as the structure corresponding to the nursing bed, except that the corresponding part of the stretcher module and the extension bed B is provided with a stretcher connecting block C140, the stretcher connecting block C140 is fixed on a stretcher keel C110 and a stretcher bottom plate C130 corresponding to the extension bed B, the stretcher connecting block C140 is provided with a stretcher connecting groove C141 and a stretcher telescopic chute C142, the stretcher connecting groove C141 is clamped and assembled with an extension clamping part C161 arranged on an extension clamping plate C160, the extension clamping part C161 is provided with an extension clamping groove C162, and the extension clamping groove C162 is clamped and assembled with one end of an extension clamping block C510, so that the assembly and fixation between the extension clamping plate C160 and the stretcher connecting block C140 are realized;

the extension clamping block C510 is clamped and slidably mounted in the stretcher telescopic chute C142, the extension clamping block C510 is fixedly assembled with one end of an extension unlocking rod C250, the other end of the extension unlocking rod C250 is sleeved with an extension pressure spring C520 and then penetrates out of the stretcher connecting block C140, and the extension clamping block C251 is fixedly assembled with an extension nut C251 after penetrating through an extension pulling plate C150, and the extension nut C251 cannot penetrate through the extension pulling plate C150. The extension pressure spring C520 is installed in the stretcher telescopic chute C142 and is used for applying an elastic force to the extension clamping block C510 to push the extension clamping groove C162.

An extension clamping block inclined plane C511 is arranged at the corresponding position of the extension clamping block C510 and the extension clamping part C161, the inclined plane C511 of the extension clamping block is used for matching with the extension clamping part C161, so that when the extension clamping part C161 is arranged in the connecting groove C141 of the stretcher, the extension clamping block C510 can be pressed downwards until the extension clamping groove C162 is aligned with the extension clamping block C510, the extension clamping block C510 is clamped into the extension clamping groove C162 under the action of the extension pressure spring C520, thereby realizing the assembly and fixation of the stretcher connecting block C140 and the extension clamping plate C160, the extension handle C151 is arranged on the extension pulling plate C150, when the stretcher connecting block C140 needs to be separated from the extension clamping plate C160, only the force for pulling the extension clip block C510 out of the extension clip groove C162 is applied to the extension pulling plate C150 by the extension handle C151, the extension clip part C161 can be pulled out of the stretcher connecting groove C141 after the extension clip block C510 exits the extension clip groove C162.

In order to facilitate distinguishing, parts of the stretcher module C corresponding to the extension bed B and the nursing bed A are named as an extension stretcher module and a nursing stretcher module respectively, one ends, close to the nursing bed A, of two conveying shafts C230 of the extension stretcher module are provided with conveying shaft connecting holes C232, the conveying shaft connecting holes C232 can be spliced with one end of a transmission square shaft C240 and cannot be assembled in a rotating mode relative to the circumference;

the interior of two conveying shafts C230 of the nursing stretcher module are hollow square shaft holes C231, the other end of the transmission square shaft C240 is clamped into the square shaft holes C231, can be axially slid and cannot be circumferentially and rotatably assembled with the transmission square shaft C240, and the transmission square shaft C240 and the extension clamping plate C160 are fixedly assembled. When the stretcher connecting groove C141 and the extension clamping part C161 are clamped, the end part of the transmission square shaft C240 is inserted into the conveying shaft connecting hole C232, and the keel extension shaft C220 is inserted into the keel shaft hole C111 of the extension stretcher module, so that two opposite stretcher keels are connected through the keel extension shaft C220, and the situation that the space is formed in the position is prevented, and the fixing of a patient is unstable is caused. And the two coaxial conveying shafts C230 are connected through a transmission square shaft C240, so that the conveying belts on the extension stretcher module and the nursing stretcher module can synchronously run.

Be fixed with the cushion C331 with the conveyer belt parallel and level on the stretcher connecting block C140 top surface, cushion C331 adopts soft material to make to avoid stretcher connecting block C140 direct contact human body to cause the discomfort.

The original intention that the present case relates to is to large-scale medical structure, nursing mechanism, consequently will extend the bed and the bed design separately, simultaneously with stretcher module also design be can be respectively with extend the bed, the bed corresponds installation, independent extension stretcher module, the nursing stretcher module to convenient to use, maintenance and repair. Can only choose for use nursing bed or extend the bed and the stretcher module or the nursing stretcher module of extending that correspond with it according to actual conditions, just so can the holistic function of greatly reduced, consequently can only satisfy basic requirement, but the structure is simplified greatly, and consequently the present case is through nursing bed, the modularization design of extending bed, stretcher module, the flexibility that can greatly increased product combination to satisfy different demands, in order to increase product adaptability. At present, the module parts of the nursing bed and the nursing stretcher are already tested by a prototype machine, and the effect is very ideal.

The utility model discloses with stretcher module and nursing bed, extension bed design for the mode that can dismantle alone, and large-scale electrical equipment such as motor does not set up on the stretcher module, can reduce the weight of stretcher module effectively to reduce porter's physical demands. And when the stretcher module is extended and the nursing stretcher module is integrally used, the length of the whole stretcher module can be prolonged through the stay cord extension plate C730, so that the stretcher module is suitable for patients with different heights. And when the stretcher module stretches out and draws back, can drive the nursing bed, extend the synchronous flexible of bed to guarantee the convenience of the stable assembly and the regulation of nursing bed, extension bed and stretcher module.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. An extension bed is characterized in that: the extension lifting device comprises an extension base, wherein two extension hinged plates which are arranged in parallel are fixed at the top of the extension base, the two extension hinged plates are respectively assembled with a first extension lifting shaft, the first extension lifting shaft is hinged with one end of a first extension lifting plate, the middle part and the other end of the first extension lifting plate are respectively hinged with the middle part and one end of a second extension lifting plate through a second extension pin and a first extension pin, and the other end of the second extension lifting plate is hinged with the second extension lifting shaft;

the second extension lifting shaft is circumferentially and rotatably arranged on the extension lifting driving block, the extension lifting driving block is respectively sleeved outside the second lifting screw and the second lifting guide shaft, and the extension lifting driving block is assembled with the second lifting screw in a threaded screwing manner and assembled with the second lifting guide shaft in an axial sliding manner; the two ends of the second lifting screw and the second lifting guide shaft are respectively assembled with the telescopic fixed block and the end fixed block in a circumferential rotating and non-axial moving manner, and the telescopic fixed block and the end fixed block are respectively fixed at the top of the extension base;

and the ends, close to the telescopic rods, of the second lifting screw and the second lifting guide shaft are respectively provided with a lifting screw insertion hole, a lifting screw guide hole, and the lifting screw insertion hole and the lifting screw guide hole are respectively assembled with the corresponding telescopic rods in an insertion manner.

2. The extension bed of claim 1, wherein: first extending lifter plate, second extend the lifter plate respectively have the polylith, and each first lifter plate both ends of extending extend lifter plate one end through first extension round pin articulated with the second that is close to with it respectively, and first extending lifter plate, second extend the lifter plate mid portion and extend the round pin articulated through the second, lie in the first lifter plate that extends of the top, the second extends the lifter plate and extends the round pin and articulate with extending the articulated piece of roof through the third respectively, extend the articulated piece of roof and fix on extending the roof.

3. The extension bed of claim 2, wherein: the clamping plate is provided with a plurality of clamping grooves arranged along the length direction of the clamping plate, the handle plate and the rotating shaft plate are respectively positioned at two ends of the backup plate in the length direction, and the handle plate is used for conveniently pulling out the backup plate; the sliding rotating shaft is installed on the rotating shaft plate, the sliding rotating shaft is sleeved outside and installed in a circumferential rotating mode, the shaft sleeve is clamped in the shaft sleeve sliding groove and assembled with the shaft sleeve sliding groove in a sliding and/or circumferential rolling mode, the shaft sleeve sliding groove is formed in the side protection plate, and the side protection plate is fixed on the extension top plate;

the side guard plates are provided with side support shafts in a circumferential rotating mode, one ends, far away from the nursing bed, of the side guard plates, the side support shafts are fixedly sleeved outside the part, located between the two side guard plates, of the side support shafts, the side support shafts are fixedly arranged at one ends of the side support plates, the other ends of the side support plates are fixedly provided with side support rods, and the side support rods can be clamped into the clamping and fixing grooves.

4. An extended bed as claimed in claim 3, wherein: the top surface of the extension top plate is further fixed with at least two extension insertion blocks, extension insertion clamping grooves are formed in the extension insertion blocks, and the nursing insertion clamping grooves of the nursing bed are in insertion assembly with one ends of the keel insertion blocks on the stretcher modules.

5. The extension bed of claim 4, wherein: the side guard plate is assembled and fixed with the inner support plate, a lower support plate part is arranged on the inner support plate, a backup plate is clamped between the lower support plate part and the extension top plate as well as between the lower support plate part and the side guard plate, and the backup plate can be assembled in a sliding mode.

6. The extension bed of claim 4, wherein: two ends of the side supporting shaft respectively penetrate through the side protecting plate and then are assembled and fixed with the locking wheel, the locking wheel is provided with a locking groove, and the locking groove can be assembled and matched with the locking plate so as to fix the side supporting shaft in the circumferential direction; the locking plate is far away from one end of the locking groove and clamped into the locking shell and can be assembled with the locking shell in a sliding mode, a locking through groove is formed in the locking shell, a locking driving block is arranged at the position, corresponding to the locking through groove, of the locking plate, and one end of the locking driving block penetrates through the locking through groove.

7. The extension bed of claim 6, wherein: the locking plate is provided with a locking slide hole, the locking slide hole and the locking guide shaft can be assembled in an axial sliding mode, one end, far away from the locking slide hole, of the locking guide shaft penetrates out of the locking shell and then is assembled and fixed with a locking nut, a locking pressure spring is sleeved on a part, located between the locking shell and the locking plate, of the locking guide shaft, and the locking pressure spring is used for generating elasticity for pushing the locking plate to the locking groove.

8. The extension bed of claim 4, wherein: the backup plate is further provided with an accommodating vertical plate, an accommodating spring plate is fixed on the accommodating vertical plate, the accommodating spring plate is assembled with one end of an accommodating spring, the other end of the accommodating spring is assembled with one end of an accommodating clamping plate, an anti-falling bulge is arranged at the other end of the accommodating clamping plate, the middle part of the accommodating clamping plate is hinged to the accommodating vertical plate through an accommodating pin, and the side supporting rod is clamped on the part of the accommodating clamping plate between the anti-falling bulge and the accommodating vertical plate.

9. A medical nursing bed is characterized in that: use of an extended bed according to any one of claims 1 to 8.

10. The medical care bed as set forth in claim 9, wherein: also comprises a nursing bed and a stretcher module.

Images