CN1171040A - Reclining drive device for medical bed - Google Patents
Reclining drive device for medical bed Download PDFInfo
- Publication number
- CN1171040A CN1171040A CN 95197056 CN95197056A CN1171040A CN 1171040 A CN1171040 A CN 1171040A CN 95197056 CN95197056 CN 95197056 CN 95197056 A CN95197056 A CN 95197056A CN 1171040 A CN1171040 A CN 1171040A
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- drive device
- axle
- output shaft
- tilt operation
- housing
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Abstract
A reclining drive device comprises an output shaft driven by an electric motor in a casing, a transmission shaft and the like. The transmission shaft is shaped to engage with both of a reclining operating shaft and the output shaft. The casing is formed with a pair of engaged grooves which are adapted to engage with a cylinder mounting bolt. When the engaging grooves are made to engage with the cylinder mounting bolt and a projection piece of the transmission shaft is inserted into a groove of the reclining operating operating shaft, the reclining drive device is mounted to a medical bed.
Description
Technical field:
The present invention relates to reclining drive device, the manual type medical bedstead that this device is used for having the manual type leaning device transform the electrodynamic type medical bedstead as.
Technical background:
The manual type medical bedstead that manual type tilting gearing mechanism 21 is set on medical bedstead 20 (with reference to Figure 17) was just arranged in the past.
This manual type leaning device 21 is to be made of cylindrical shell 23 and the moving bar 26 of folding, cylindrical shell 23 is that manually rotatablely moving of crank rocker 22 is converted to rectilinear motion, and the moving bar 26 of folding and the direct trace 24 of cylindrical shell 23 are connected and make a part of banking motion of medical bedstead main body 25.
And there are Figure 18, two types shown in Figure 19 in the bindiny mechanism that crank rocker 22 is connected with the tilt operation axle 27 of leaning device 21.
Bindiny mechanism 40 shown in Figure 19 is by mutually combining with pin 41 and driving the driving on the tilt operation axle 27 and keeping connection status by spring 43 tractions with groove 42.For fear of danger, when not using crank rocker 22 (with reference to Figure 20), crank rocker 22 combines owing to hinge is pulled to break away from tilt operation axle 27 with pin 44 and slotted hole 45 guiding and the effect that overcomes spring 43, like this, and the outside that crank rocker 22 just can not stretch out medical bedstead 20.And, extract hinge and just can take off crank rocker 22 from tilt operation axle 27 with pin 44.
But, manual type medical bedstead 20 with this crank rocker 22 must be with hands rotating crank crank 22 operation of tilting, be quite heavy physical work, when hospital was provided with a lot of medical bedstead, the nurse was forced to be engaged in continually curative activity work in addition.And, the nurse personnel of family also there is same problem.
For from this heavy physical labour, freeing, electrodynamic type medical bedstead with electronic actuating device has been arranged, but, because this electrodynamic type medical bedstead is too expensive, so existing manual type medical bedstead with manual type leaning device 20 is discarded and purchase the new problem that also has economically.
The purpose of this invention is to provide a kind of reclining drive device, this device can use having on the manual type medical bedstead of manual type leaning device and with this and transform the electrodynamic type medical bedstead as, thereby nurse or nurse personnel are freed from the inclination operation of heavy physical labour.
Another object of the present invention is that the reclining drive device that is provided can not make device overload itself, can make the moving bar of folding stop at the position of regulation.
Disclosure of an invention:
The invention provides a kind of reclining drive device for medical bed, this reclining drive device for medical bed has the housing of the reducing gear of band motor, the end of the output shaft of this motor by power transmission shaft and the tilt operation axle that crank rocker can be installed can in conjunction with or break away from, and crank rocker can installing/dismounting on this tilt operation axle; On above-mentioned housing, support member is set, makes the axle center of aforementioned tilt operation axle and aforementioned output shaft consistent and housing is installed on the bedstead by this support member.The two ends of aforementioned power transmission shaft can combine with aforementioned output shaft respectively or break away from and can combine with the tilt operation axle of removing crank rocker or break away from.
Take off crank rocker from the tilt operation axle, with joint portion that forms on the power transmission shaft and the crank connecting portion combination that was connected crank rocker, and the support member of housing is combined with the bedstead of medical bedstead, therefrom this reclining drive device is installed on the medical bedstead together with housing.
When starter motor, make the rotation of tilt operation axle by output shaft and power transmission shaft, thereby make the part folding of manual type medical bedstead moving.
Like this, pull down crank rocker, assemble reclining drive device then, thereby transform the manual type medical bedstead as the electrodynamic type medical bedstead, nurse or nurse personnel are freed from the inclination operation of heavy physical labour from existing manual type medical bedstead.
And reclining drive device for medical bed provided by the invention has: slow down aforementioned output shaft and the tilt detection axle that rotates, a pair of tilt detection that can change phase place is arranged with cam, started and limit switch that aforementioned output shaft is stopped operating by aforementioned cam on this detections axle.
Generally be to measure the limit and retreat the limit of advancing that makes direct trace that bed tilts, and close motor by the overcurrent protection of motor.But, in this case, can significantly be reduced the mechanical life of device integral body to the irrational power of driving device effect itself.
The present invention is provided with the deceleration output shaft and the tilt detection axle that rotates, detects pivot by limit switch and cam in this detections spool, and output shaft is stopped operating.With than the maximum revolution of tilt operation axle bigger deceleration recently carry out from output shaft to the deceleration that detects axle.
In addition,,, therefore can adjust cam separately because can change cam separately with respect to the phase place that detects axle though various types of medical bedsteads are arranged, make its with the limit of advancing of direct trace with to retreat the limit corresponding.
The simple declaration of accompanying drawing:
Fig. 1 is the front view of the reclining drive device of the embodiment of the invention, shown in its partial cross section.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the vertical view of reclining drive device shown in Fig. 1.
Sketch is looked on the left side of Fig. 4 Fig. 1.
Fig. 5 is the front view of the reclining drive device of other embodiment of the present invention, shown in its partial cross section.
Fig. 6 is the right view of Fig. 5.
Fig. 7 is the front view of reclining drive device shown in Figure 5, and housing parts is analysed and observe.
Fig. 8 be among Fig. 7 8-8 to looking cross-sectional.
Fig. 9 is the front view of the reclining drive device of the other embodiment of the present invention, shown in its partial cross section.
Figure 10 is the inner section figure of Fig. 9 driving device.
Figure 11 is the plane graph of expression cam and limit switch relative position.
Figure 12 is the support member of presentation graphs 9 connectors, (a) is that front view, (b) are side view.
Figure 13 is the front view of the reclining drive device of the other embodiment of the present invention, shown in its partial cross section.
Figure 14 is the support member of expression Figure 13 connector, (a) is that front view, (b) are bottom view for side view, (c).
Figure 15 is the front view of another other embodiment reclining drive device of the present invention, expression one partial cross section.
Figure 16 is the support member of expression Figure 15 connector, (a) is that front view, (b) are bottom view for side view, (c).
Figure 17 is that the master of medical bedstead looks sketch.
Figure 18 is the axonometric chart of crank rocker bindiny mechanism.
Figure 19 is the front view of other bindiny mechanism of crank rocker.
Figure 20 represents that crank rocker is at the front view of non-working condition among Figure 11.
Implement optimal morphology of the present invention:
Fig. 1 has reclining drive device 50 on the manual type medical bedstead 20 of bindiny mechanism shown in Figure 180 30 to shown in Figure 4 being mounted in.
This reclining drive device 50 comprises formations such as housing 51, electro-motor 52, reducing gear 53, power transmission shaft 54.
Electro-motor 52 is installed on the housing 51.Worm screw 56 is installed on the rotating shaft 55 of electro-motor 52.Worm screw 56 and worm gear 57 engagements.Worm screw 56 and worm gear 57 constitute reducing gear 53.
The output shaft 58 of worm gear 57 is propped up on worm gear case 59 by axle.By with leg 60,60 parts worm gear case 59 being installed on the housing 51 with the installation of worm gear case 59 for one.
Form a pair of engagement groove 64 on the housing 51, this engagement groove combines with the bolt (being mounted portion) 63,63 that two cylindrical shells are installed usefulness.It is to be used for handle to be installed in carriage 65 on the cylindrical shell 23 and to be installed to bolt on the Suspension 66 that is installed on the medical bedstead 20 that cylindrical shell is installed with bolt 63.
In housing 51, be provided with control loop 67.Control loop 67 makes electro-motor 52 just change, reverse by the manual press button of operation (omitting diagram).In addition, control loop 67 also possesses the overload protection function of electro-motor 52.
Below, the using method of reclining drive device 50 is described.
At first, pull out the perforation pin 33 of manual type medical bedstead 20 shown in Figure 180, unload crank rocker 22 from tilt operation axle 27.Then, the bolt 63 that the engagement groove 64 of the housing 51 of reclining drive device 50 and cylindrical shell are installed usefulness combines.Simultaneously the tab 62 of power transmission shaft 54 is inserted in the groove 31 of tilting gearing operating axis 27.If the relative position of tab 62 and groove 31 has deviation, then manually rotate tab 62 and make its position alignment.Then, fixed-use bolt 68 is screwed into housing 51, compresses the periphery of carriage 65 with the top of fixed-use bolt 68.So just reclining drive device 50 is installed on the medical bedstead 20.
Then, operate manual press button, starting electro-motor 52.The revolving force of electro-motor 52 is delivered to tilt operation axle 27 by the groove 31 of worm screw 56, worm gear 57, output shaft 58, alignment pin 61, power transmission shaft 54, tab 62 and tilt operation axle 27.Thus, the part of medical bedstead main body 25 (referring to Figure 17) is rolled over.Like this, replace crank rocker 22 by reclining drive device 50 is installed, and transform the manual type medical bedstead as the electrodynamic type medical bedstead.
Fig. 5 is to the reclining drive device 70 that is mounted on the manual type medical bedstead 20 shown in Figure 8, and this manual type medical bedstead 20 has bindiny mechanism shown in Figure 19 40.
This tilting gearing 70 also is to comprise formations such as housing 71, electro-motor 72, reducing gear the 73, the 3rd spur gear (output shaft) 74.Electro-motor 72 is installed on the housing 71.Worm screw 76 is installed on the rotating shaft 75 of electro-motor 72.Worm screw 76 and worm gear 77 engagements.The rotating shaft 78 of worm gear 77 is propped up on worm gear case 79 by axle.Worm gear case 79 is installed on the housing 71.By well-known connecting device 92 top of rotating shaft 78 is fixed on the 1st spur gear 80.The 1st spur gear 80 is supported by the rotating shaft 78 and the housing 71 of worm gear 77.
The 1st spur gear 80 and 81 engagements of the 2nd spur gear.The 2nd spur gear 81 is arranged on the back shaft 82 by bearing 83 and can rotates freely.The two ends of back shaft 82 are supported by housing 71.The 2nd spur gear 81 and 74 engagements of the 3rd spur gear.One side of the 3rd spur gear 74 is arranged on the holding member set on the housing 71 84 and can rotates freely.Be formed with on the 3rd spur gear 74 hole 85 that tilt operation axle 27 connects, and form with tilt operation axle 27 on the pin joint groove (joint portion) 86 that combines with pin (crank connecting portion) 41 of driving.Pin joint groove 86 go into interruption-forming wide-mouth shape so that accept to drive with pin 41.
On housing 71, be formed with and carriage (being mounted portion) 89 bonded engagement grooves 88,88.Carriage 89 is installed on the cylindrical shell 23 and by the cylindrical shell installation and is arranged on the Suspension 90 with bolt 87.Suspension 90 is installed on the medical bedstead 20.
Below, the using method of reclining drive device 70 is described.
At first, the hinge that pulls out manual type medical bedstead 20 shown in Figure 19 unloads crank rocker 22 with pin 44 from tilt operation axle 27.Then, the engagement groove 88 with the housing 71 of reclining drive device 70 combines with carriage 89.Simultaneously, tilt operation axle 27 is inserted in the hole 85 of the 3rd spur gear 74, support the top of tilt operation axle 27 with housing 71.At this moment, the driving on the tilt operation axle 27 enters in the pin joint groove 86 of the 3rd spur gear 74 with pin 41.If the relative position that drives with pin 41 and pin joint groove 86 produces deviation, then make the position alignment that drives with pin 41 and pin joint groove 86 by manual rotation the 3rd spur gear 74.Then, fixed-use bolt 91 is screwed into housing 71, compresses the periphery of carriage 89 with the top of fixed-use bolt 91.So just reclining drive device 70 is installed on the medical bedstead 20.
Then, operate manual press button (omitting diagram), starting electro-motor 72.The revolving force of electro-motor 72 is delivered to tilt operation axle 27 by worm screw 76, worm gear the the 77, the 1st, the 2nd, the 3rd spur gear 80,81,74, pin joint groove 86 and driving with pin 41.Thus, the part of medical bedstead main body 25 (referring to Fig. 9) is rolled over.Like this, replace crank rocker 22 by reclining drive device 70 is installed, and transform the manual type medical bedstead as the electrodynamic type medical bedstead.
When tilt operation axle 27 is positioned at medical bedstead 20 inboards, use Fig. 1 to reclining drive device 50 shown in Figure 4; When tilt operation axle 27 is positioned near the outside of medical bedstead 20, then use Fig. 5 to reclining drive device 70 shown in Figure 8.Therefore, the 1st to the 3rd spur gear 80,81,74 of the reclining drive device 70 that Fig. 5 is extremely shown in Figure 8 is arranged on the width of medical bedstead 20, forms flat shape, and it can not stretched out to the outside of medical bedstead 20.
That Fig. 9 is extremely shown in Figure 12 is other embodiment.The reclining drive device 100 of present embodiment has unit protection mechanism.Reach maximum and angle of inclination at the angle of inclination and reach hour, protection mechanism stops electro-motor 102.That is: reach when advancing the limit and retreating the limit at direct trace, electro-motor 102 is stopped.
Protection mechanism has: the angle of inclination that is configured in the housing 103 is detected axle 104, is installed in the pair of cams 105,106 on this detection axle 104, the limit switch 107,108 that is started by cam 105,106 respectively.
Axle 104 is detected by two gears 109 and the rotation of output shaft 110 interlocks in the angle of inclination.Speed reducing ratio is extremely important.Usually, output shaft 110 is to be 40～50 and rotate to the maximum.Utilizing limit switch at 107,108 o'clock, and must make the rotating speed that detects axle 104 be no more than 360 °.Therefore, in the present embodiment speed reducing ratio is set at 70.In order to obtain certain speed reducing ratio, certainly use worm screw or epicyclic train.
Pair of cams 105,106 stops electro-motor 102 and output shaft 110 by starting limit switch 107,108.A cam 105 is used to detect the limit of advancing of direct trace, and another cam 106 is used to detect the limit that retreats of direct trace.Cam 105,106 detects axle 104 with respect to the angle of inclination can change phase place respectively.For example, when direct trace is positioned at when advancing the limit, cam 105 control phases, starting limit switch 107, at this position handle and the bonded screw in compression of cam 105 screw threads on the surface of detecting axle 104, thereby cam 105 is fixed on the position of regulation.
When detecting tilt operation axle 101 by cam 105,106 limit switches that started 107,108 can not exceed rotation more than this time, electro-motor 102 is stopped.Therefore can protector, and then can protect medical bedstead.
In the present embodiment, regulate stopping of electro-motor 102 by the phase change of cam 105,106, but also can be following structure.That is: also can be fixed on the detection the axle 104 and position of change limit switch to cam.For example, the bottom of housing 103 is made circular-arc, be provided with along the bottom can with detect axle 104 concentric mobile sliding parts, by screw sliding part is fixed on the assigned position.On this sliding part, limit switch is installed.By the position of adjustment slide and limit switch, just can detect the limit and retreat the limit of advancing of direct trace.
The embodiment of Fig. 9 to Figure 12 contains the structure of improved connector.Connector 111 is to be used for the unitized driving device of normalization is connected to medical bedstead miscellaneous.Connector 111 has driving device 100 to be fixed on the support member 112 on the medical bedstead and to have the output shaft 110 of driving device 100 is connected to power transmission shaft 113 on the tilt operation axle 101.
The connector 111 of present embodiment has and driving device 100 is fixed on the support member 112 on the bedstead 114 and output shaft 110 is connected to adapter piece 113 on the tilt operation axle 101 that has hexagon ring.
And the support member of Fig. 1 to Fig. 8 and housing are an overall structure, but as present embodiment, by support member 112 and housing are made different component respectively, and can realize that the normalization of driving device is unitized.
Figure 13 and shown in Figure 14 be other embodiment of connector.The support member 121 of the connector 120 of present embodiment utilizes cylindrical shell construction bolt 122 and driving device 123 is fixed on the medical bedstead 124.Support member 121 is fixed tightly on the housing 125 of driving device 123.Then, a pair of cantilever lever 126 is inserted between Suspension 127 and the housing 128, cylindrical shell installed to insert engagement grooves 129 with bolt 122 interior and tight a bolt 122,, so just driving device 123 is installed on the bedstead 132 being pressed on the cylindrical shell 128 with the bonded bolt 131 of tongue piece 130 screw threads.
The adapter piece utilization of present embodiment drives and with pin 133 revolving force is delivered to tilt operation axle 135 from output shaft 134.One end of adapter piece 136 inserts in the breach circle shape output shaft 134 of driving device 123, and is screwed.And the other end of adapter piece 136 inserts in the tilt operation axle 135.At this moment, driving is placed in the formed pin joint groove 137 in adapter piece 136 tops with pin 133.
Figure 15 and shown in Figure 16 be another other the embodiment of connector.The support member 141 of present embodiment connector 140 is to utilize cylindrical shell to install with bolt 142 driving device 143 to be fixed on the medical bedstead 144.Support member 141 is fixed tightly on the housing 145 of driving device 143.Then, a pair of cantilever lever 146 is inserted between Suspension 147 and the cylindrical shell 148, cylindrical shell is installed with bolt 142 inserted Suspension 147 and cantilever lever 146 and tighten this bolt 142, so just driving device 143 is installed on the bedstead 149.In addition, the adapter piece of present embodiment is with shown in Figure 14 identical.
As mentioned above, owing to got all the connector that is applicable to medical bedstead of all kinds ready, thus can make the driving device generalization.
Utilize possibility on the industry
The joint portion of output shaft or power transmission shaft is connected the crank of the tilt operation axle of the crank of dismantling Connecting portion, and the engagement groove of housing is combined with the section of being mounted, like this, pitch drives of the present invention Device just is installed on the medical bed together with housing. Therefore, reclining drive device can be installed simply On the hand leaning device, and be conducive to the existing hand with the hand leaning device Medical bed easily transform the electrodynamic type medical bed as.
And, owing to utilize reclining drive device that the hand medical bed is transform as the electrodynamic type medical treatment Bed, thus free from the tilt operation of heavy physical labour expanding scholar or nurse personnel.
In addition, because the present invention is provided with the angle of inclination detection axle that slows down and rotate for output shaft, And detect the anglec of rotation that pivot is tied the cam on this detection axle by limit switch, measure in advance inclination The limit and retreat the limit and output shaft is stopped of advancing of the direct trace that operating axis drives Therefore rotation makes device self can not produce overload, can the prolonged mechanical life-span. And, by Change the phase place of each cam, can set simply corresponding to various medical bed the position of rest of motor Put. In addition, do not need to use the expensive motor such as servo motor.
Claims
Modification according to the 19th of treaty
1. reclining drive device for medical bed, this reclining drive device for medical bed is provided with the housing of the reductor of motor, the output shaft of this motor is connected with an end of tilt operation axle, by pair of bolts aforementioned housing is installed, this to bolt and bedstead be separated with spacing and be set between the Suspension of hang and be opposite to the tilt operation axle, and this tilt operation axle can combine with crank rocker or break away from, in this reclining drive device for medical bed, the a pair of support member that stretches out is set on above-mentioned housing, make the axle center of above-mentioned tilt operation axle and above-mentioned output shaft consistent and aforementioned housing is installed on the bedstead, form on the top of this support member and insert the joint portion of bolt separately by this support member.
2. reclining drive device for medical bed as claimed in claim 1, between above-mentioned tilt operation axle and above-mentioned output shaft, power transmission shaft is set, the shape that forms the shape that can combine with above-mentioned output shaft or break away from these power transmission shaft two ends respectively and combine or break away from tilt operation axle after removing crank rocker.
3. reclining drive device for medical bed as claimed in claim 1 has: slow down above-mentioned output shaft and axle is detected at the angle of inclination of rotating, the pair of angled angle that can change phase place on this detections axle detects with cam, started and limit switch that above-mentioned output shaft is stopped the rotation by above-mentioned cam.
Explanation according to treaty the 19th (1)
In the JP60-1696 of documents, driving device A is placed on the floor, not shown this driving device A is installed on technology on the bed.
In the JP60-15547 of documents, housing 22 is arranged on the travelling carriage 25, not shown this housing 22 is installed on technology on the bed.
In the JP6-38961 of documents, electro-motor 12 by parts 92 suspention in bed, the not shown tilt operation axle that makes is consistent with the axle center of output shaft and housing is installed in technology on the bedstead and not shown support member in formation joint portion, top.
The present invention is provided with a pair of support member that stretches out on housing, make the axle center of tilt operation axle and output shaft consistent and aforementioned housing is installed on the bedstead by this support member, insert the joint portion of bolt separately in the formation of the top of support member, can be installed in reclining drive device on the manual type leaning device simply thus.
Claims (3)
1. reclining drive device for medical bed, this reclining drive device for medical bed has the housing of the reducing gear of band motor, the output shaft of this motor is connected with an end of the tilt operation axle that crank rocker can be installed, and crank rocker can load and unload on the tilt operation axle; On above-mentioned housing, support member is set, makes that the axle center of aforementioned tilt operation axle and aforementioned output shaft is consistent to be installed in aforementioned housing on the bedstead by this support member.
2. reclining drive device for medical bed as claimed in claim 1, between above-mentioned tilt operation axle and above-mentioned output shaft, power transmission shaft is set, the shape that forms the shape that can combine with above-mentioned output shaft or break away from these power transmission shaft two ends respectively and combine or break away from tilt operation axle after removing crank rocker.
3. reclining drive device for medical bed as claimed in claim 1, have: slow down above-mentioned output shaft and axle is detected at the angle of inclination of rotating, the pair of angled angle that can change phase place on this detections axle detects with cam, is started and limit switch that above-mentioned output shaft is stopped the rotation by above-mentioned cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95197056A CN1098675C (en) | 1995-10-24 | 1995-10-24 | Reclining drive device for medical bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95197056A CN1098675C (en) | 1995-10-24 | 1995-10-24 | Reclining drive device for medical bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1171040A true CN1171040A (en) | 1998-01-21 |
| CN1098675C CN1098675C (en) | 2003-01-15 |
Family
ID=5083277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95197056A Expired - Fee Related CN1098675C (en) | 1995-10-24 | 1995-10-24 | Reclining drive device for medical bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1098675C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926711B (en) * | 2009-12-30 | 2011-10-05 | 张永寿 | Field operation wounded personnel transfer trolley |
| CN103517694A (en) * | 2011-05-06 | 2014-01-15 | 崔荣旼 | Detachable electric apparatus for moving a patient bed |
| CN106618918A (en) * | 2016-11-17 | 2017-05-10 | 青岛橡胶谷知识产权有限公司 | Auxiliary support device for bedridden patient |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015547Y2 (en) * | 1981-10-20 | 1985-05-16 | 秀男 玉田 | bet |
| JPS601696Y2 (en) * | 1982-06-29 | 1985-01-18 | 不二機工株式会社 | Bed floor lifting device |
| JPH0638961U (en) * | 1992-11-11 | 1994-05-24 | 株式会社椿本チエイン | Medical bed reclining assist device |
-
1995
- 1995-10-24 CN CN95197056A patent/CN1098675C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926711B (en) * | 2009-12-30 | 2011-10-05 | 张永寿 | Field operation wounded personnel transfer trolley |
| CN103517694A (en) * | 2011-05-06 | 2014-01-15 | 崔荣旼 | Detachable electric apparatus for moving a patient bed |
| CN106618918A (en) * | 2016-11-17 | 2017-05-10 | 青岛橡胶谷知识产权有限公司 | Auxiliary support device for bedridden patient |
| CN106618918B (en) * | 2016-11-17 | 2019-05-10 | 刘晓云 | A kind of sickbed patients auxiliary support apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1098675C (en) | 2003-01-15 |
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