CN206675665U - The bi-motor biobelt lifting device of sky rail patient's transfer system - Google Patents
The bi-motor biobelt lifting device of sky rail patient's transfer system Download PDFInfo
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- CN206675665U CN206675665U CN201621419777.2U CN201621419777U CN206675665U CN 206675665 U CN206675665 U CN 206675665U CN 201621419777 U CN201621419777 U CN 201621419777U CN 206675665 U CN206675665 U CN 206675665U
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- motor
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- idle pulley
- biobelt
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Abstract
A kind of bi-motor biobelt lifting device of sky rail patient transfer system of the utility model, including track, rail inferior portion is provided with sliding equipment, sliding equipment bottom is fixed with hoisting mechanism, hoisting mechanism includes the first connecting plate, second connecting plate, first motor and the second motor, first motor is located at the inner side of the first connecting plate, second motor is located at the inner side of the second connecting plate, first pulley and the first idle pulley are installed on the outside of the first connecting plate, the first heave hand is wound with first pulley, the first heave hand passes through the first idle pulley, second belt wheel and the second idle pulley are installed on the outside of the second connecting plate, second heave hand is wound with second belt wheel, second heave hand passes through the second idle pulley, lifting arm is provided between the first heave hand and second heave hand, the bottom of lifting arm is provided with connecting traverse.The utility model is simple in construction, operates steadily, the bi-motor biobelt lifting device for sky rail patient's transfer system that comfortableness is high.
Description
Technical field
Sky rail patient transfer system, Rehabilitation training and auxiliary walking equipment technical field are the utility model is related to,
More particularly to the bi-motor biobelt lifting device of sky rail patient's transfer system.
Background technology
Sky rail patient transfer system as recovery centre, geriatric nursing home, high-end nursing at home nucleus equipment, have wide
General application scenarios, and all application scenarios are required for slinging patient's positioning and moving along track by fixed position.
Present lifting device is all to use single heave hand, and single motor drives, and heave hand is played as safety critical part, although during design
Safety coefficient can meet the requirement of safety standard, but be can hardly be avoided as flexible piece abrasion, aging, and specific occasion is using still
The safety redundancy that can seem deficiency；In addition, easily kink has caused heave hand excessive in single weight band patient lifting, transfer process
Abrasion is stuck；In lifting device as convalescence device with patient's weight-losing when, single tape structure be unfavorable for patient walking when protect
Gravity balance is held, easily causes and vacillates now to the left, now to the right.
Utility model content
The technical problems to be solved in the utility model be to provide it is a kind of it is simple in construction, operate steadily, the day rail that comfortableness is high
The bi-motor biobelt lifting device of formula patient's transfer system.
A kind of bi-motor biobelt lifting device of sky rail patient transfer system of the utility model, including track, the rail
Road bottom is provided with sliding equipment, and the bottom of the sliding equipment is fixed with hoisting mechanism；
The hoisting mechanism includes the first connecting plate, the second connecting plate, the first motor and the second motor, first motor
Positioned at the inner side of first connecting plate, second motor is located at the inner side of second connecting plate, first motor with
Placed independently of each other between second motor, first pulley and the first idle pulley be installed on the outside of first connecting plate, described
The first heave hand is wound with one belt wheel, the first heave hand passes through first idle pulley, the outside of second connecting plate
Second belt wheel and the second idle pulley are installed, second heave hand is wound with second belt wheel, second heave hand passes through institute
The second idle pulley is stated, the first heave hand is realized by first pulley described in first motor driven and risen or fallen, described
Second lifting band is risen or fallen by the second belt wheel realization described in second motor driven, the first heave hand and second
Heave hand is played on same vertical section, is provided with lifting arm between the first heave hand and second heave hand, under the lifting arm
Portion is provided with connecting traverse.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein the sliding equipment includes
Roller mount, the roller mount are provided with roller, and the roller is adapted with the track.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein first connecting plate with
Second connecting plate is fixed on the both ends of the roller mount, first motor and the second motor be respectively positioned on first connecting plate,
In the framework that second connecting plate is assembled into roller mount.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein first connecting plate
Outside is fixed with first sensor, and second sensor, the first sensor and are fixed with the outside of second connecting plate
Two sensors are separately mounted to the lower end of the roller mount.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein the first pulley and the
Be provided with first rotating shaft between one motor, the first rotating shaft and the motor axis connection of first motor, second belt wheel with
The second rotating shaft, second rotating shaft and the motor axis connection of second motor are provided between second motor.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein first idle pulley and
The 3rd rotating shaft is provided between one connecting plate, first idle pulley is located at the end of the 3rd rotating shaft, second idle pulley and
The 4th rotating shaft is provided between two connecting plates, second idle pulley is located at the end of the 4th rotating shaft.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein the first pulley and the
The diameter of two belt wheels is identical, and first idle pulley is identical with the diameter of the second idle pulley, and the diameter of first idle pulley is less than described
The diameter of first pulley, the diameter of second idle pulley are less than the diameter of second belt wheel.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein first idle pulley and
The side of two idle pulleys is provided with gear shaft, and the gear shaft is separately fixed at the outside of first connecting plate and the second connecting plate.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein the centre of the lifting arm
Provided with vertical the 5th movable rotating shaft, the connecting traverse is fixed on the lower end of the 5th rotating shaft.
The bi-motor biobelt lifting device of the utility model sky rail patient's transfer system, wherein the lifting arm is located at institute
The end of the first heave hand and second heave hand is stated, the end of the first heave hand and second heave hand passes through groove pin knot respectively
Structure is fixed on the lifting arm.
Compared with prior art, advantage possessed by the utility model and have the beneficial effect that：
(1) the utility model uses the control mode of bi-motor, and the first motor is by driving first pulley to drive the first
Heave hand rises or falls, and the second motor turn drives second tape wheel drives the second lifting band to rise or fall, so that lifting arm is located at
In same horizontal line or on varying level line, asymmetric loss of weight adjustment during rehabilitation is realized, suitable for different types of trouble
Person, it is widely used；
(2) the utility model effectively prevent the heave hand that rises used and twisted together, blocked using the lifting device of double lifting band structures
Extremely, service life of equipment is improved, ensures stationarity during patient's transfer；
(3) the utility model overall structure is stable, and the mounting structure between each parts is compact, effectively solves prior art
Middle Safety Redundancy design.
The bi-motor biobelt lifting device of sky rail patient transfer system of the present utility model is made below in conjunction with the accompanying drawings into
One step explanation.
Brief description of the drawings
Fig. 1 is that the structural representation of the bi-motor biobelt lifting device of the utility model sky rail patient's transfer system (saves
Slightly first sensor and second sensor)；
Fig. 2 be the utility model sky rail patient's transfer system bi-motor biobelt lifting device in sliding equipment structure
Schematic diagram (omits the first connecting plate and first sensor)；
Fig. 3 be the utility model sky rail patient's transfer system bi-motor biobelt lifting device in the first motor and
The structural representation of the first arrangement situation of two motors；
Fig. 4 be the utility model sky rail patient's transfer system bi-motor biobelt lifting device in the first motor and
The structural representation of two second of motors arrangement situation；
Fig. 5 be the utility model sky rail patient's transfer system bi-motor biobelt lifting device in the first motor and
The structural representation of the third arrangement situation of two motors；
Fig. 6 be the utility model sky rail patient's transfer system bi-motor biobelt lifting device in the first motor and
The structural representation of the 4th kind of arrangement situation of two motors；
Wherein：1st, track；2nd, sliding equipment；3rd, hoisting mechanism；4th, the first heave hand；4 ', second heave hands；5th, lifted
Bar；6th, connecting traverse；
201st, roller mount；
301st, the first connecting plate；301 ', second connecting plate；302nd, first pulley；302 ', second belt wheel；303rd, first turn
Axle；303 ', second rotating shaft；304th, the first idle pulley；304 ', second idle pulley；305th, the 3rd rotating shaft；305 ', the 4th rotating shaft；306th,
One motor；306 ', second motor；307th, gear shaft；308th, first sensor；308 ', second sensor；
601st, the 5th rotating shaft.
Embodiment
As shown in Figure 1-2, the bi-motor biobelt lifting device of a kind of sky rail patient transfer system of the utility model, including
Track 1, the bottom of track 1 are provided with sliding equipment 2, and sliding equipment 2 includes roller mount 201, and roller mount 201 is provided with roller, roller
It is adapted with track 1, sliding equipment 2 is slid on path 1 by the cooperation of roller and track 1；
The bottom of sliding equipment 2 is fixed with hoisting mechanism 3, and hoisting mechanism 3 includes the first connecting plate 301, the second connecting plate
301 ', first motor 306 and the second motor 306 ', the first motor 306 are located at the inner side of the first connecting plate 301, the second motor
306 ' are located at the inner side of the second connecting plate 301 ', are placed independently of each other between the first motor 306 and the second motor 306 ', and first connects
The connecting plate 301 ' of fishplate bar 301 and second is fixed on the both ends of roller mount 201, and the first motor 306 and the second motor 306 ' are respectively positioned on
In the framework that first connecting plate 301, the second connecting plate 301 ' are assembled into roller mount 201；
The outside of first connecting plate 301 is provided with the idle pulley 304 of first pulley 302 and first, is wound with first pulley 302
The first heave hand 4, the first heave hand 4 pass through the first idle pulley 304, the second belt wheel 302 ' are provided with the outside of the second connecting plate 301 '
With the second idle pulley 304 ', second heave hand 4 ' is wound with the second belt wheel 302 ', second heave hand 4 ' passes through the second idle pulley 304 ',
First rotating shaft 303, the motor shaft of the motor 306 of first rotating shaft 303 and first are provided between the motor 306 of first pulley 302 and first
Connection, the first heave hand 4 drive first pulley 302 to realize and risen or fallen by the motor shaft running of the first motor 306, and second
The motor shaft of the second rotating shaft 303 ', the second rotating shaft 303 ' and the second motor 306 ' is provided between belt wheel 302 ' and the second motor 306 '
Connection, second heave hand 4 ' drive the second belt wheel 302 ' to realize and risen or fallen by the motor shaft running of the second motor 306 ',
The rotating shaft 303 ' of first rotating shaft 303 and second is solid shafting, and the 3rd rotating shaft is provided between the first idle pulley 304 and the first connecting plate 301
305, the first idle pulley 304 is located at the end of the 3rd rotating shaft 305, and the 4th is provided between the second idle pulley 304 ' and the second connecting plate 301 '
Rotating shaft 305 ', the second idle pulley 304 ' are located at the end of the 4th rotating shaft 305 ', and the 3rd rotating shaft 305 and the 4th rotating shaft 305 ' are locking pin
Axle, first pulley 302 is identical with the diameter of the second belt wheel 302 ', and the first idle pulley 304 is identical with the diameter of the second idle pulley 304 ', the
The diameter of one idle pulley 304 is less than the diameter of first pulley 302, and the diameter of the second idle pulley 304 ' is less than the straight of the second belt wheel 302 '
Footpath；
The outside of first connecting plate 301 is fixed with first sensor 308, and second is fixed with the outside of the second connecting plate 301 '
Sensor 308 ', first sensor 308 are separately mounted to the lower end of roller mount 201, first sensor with second sensor 308 '
308 are used for detecting the power born described in the first heave hand 4, and second sensor 308 ' is used for detecting what second heave hand 4 ' was born
Power, first sensor 308 and second sensor 308 ' are connected (not shown) with master controller, the He of first sensor 308
The data of collection are transferred to master controller by second sensor 308 ', control the first motor 306 and second respectively by master controller
Motor 306 ', and then rising or falling for the first heave hand 4 and second heave hand 4 ' is controlled respectively；
The side of first idle pulley 304 and the second idle pulley 304 ' is provided with gear shaft 307, and gear shaft 307 is separately fixed at the first connection
The outside of the connecting plate 301 ' of plate 301 and second, the effect that gear shaft 307 designs is to have avoided heave hand from occurring position deviation at work
Phenomenon, to rise heave hand position have restriction effect；
Lifting arm 5 is provided between the first heave hand 4 and second heave hand 4 ', lifting arm 5 is located at the first heave hand 4 and second
The end of heave hand 4 ' is played, the end of the first heave hand 4 and second heave hand 4 ' is fixed on lifting arm 5 by groove latch structure respectively
On, the bottom of lifting arm 5 is provided with connecting traverse 6, and the centre of lifting arm 5 is provided with the 5th rotating shaft 601 of vertical activity, and connecting traverse 6 is solid
The lower end of the 5th rotating shaft 601 is scheduled on, suspender belt and sling for taking patient are connected with connecting traverse 6, the 3rd rotating shaft 305 is set
Meter facilitates the positioning of sling and suspender belt, to adapt to the different positions of patient and transfer orientation, increases the comfortable of patient's usage experience
Property.
In design based on said structure, the first motor 306 and the second motor 306 ' connect in the first connecting plate 301, second
In the framework that fishplate bar 301 ' is assembled into roller, its riding position can be any combination, then, the band of first pulley 302 and second
It can be coaxially arranged or not coaxially arranged between wheel 302 ', still, begin between the first idle pulley 304 and the second idle pulley 304 '
It is eventually coaxially arranged, that is, is always ensured that the first heave hand 4 and second heave hand 4 ' on same vertical section, make integral lifting apparatus
Uniform force, ensure stability during patient's transfer.
User according to the space needs in practical operation, can be adjusted the arrangement position of the first motor and the second motor
Put, wherein, the arrangement of the first motor and the second motor includes and is not limited to following four situation：
The first, as shown in figure 3, the first motor 306 is horizontal positioned with the second motor 306 ', and the first motor 306
With the direction of the second motor 306 ' on the contrary, first pulley 302 with the second belt wheel 302 ' is not coaxially arranged.
Second, as shown in figure 4, the first motor 306 is horizontal positioned with the second motor 306 ', and the first motor 306
Identical with the direction of the second motor 306 ', first pulley 302 is coaxially arranged with the second belt wheel 302 '.
The third, as shown in figure 5, the first motor 306 is placed to be vertical, the second motor 306 ' is horizontal positioned, first band
Wheel 302 is not coaxially arranged with the second belt wheel 302 '.
4th kind, as shown in fig. 6, the first motor 306 and the second motor 306 ' they are vertical placement, first pulley 302 with
Second belt wheel 302 ' is not coaxially arranged.
In summary, at work, the first motor 306 drives first rotating shaft to the utility model by motor shaft thereon
303, and then first pulley 302 is driven, and then the first heave hand 4 in first pulley 302 is risen or fallen, the second motor
306 ' drive the second rotating shaft 303 ', and then turn drives second tape wheel 302 ' by motor shaft thereon, and then make the second belt wheel 302 '
On second heave hand 4 ' rise or fall, the first heave hand 4 and second heave hand 4 ' are in the first motor 306 and the second motor
It can synchronously be risen or fallen under 306 ' effect respectively, make the first heave hand 4 and second heave hand 4 ' in same level,
It can also need to rise or fall respectively according to patient's actual conditions, make the first heave hand 4 with second heave hand 4 ' not same
On one horizontal plane, lifting arm 5 is provided between the first heave hand 4 and second heave hand 4 ', the bottom of lifting arm 5 is provided with connecting traverse 6,
Connecting traverse 6 is connected with the suspender belt and sling of carrying patient, then drives lifting arm 5 to rise or fall, meanwhile, sliding equipment 2 exists
Sliding on path 1 is realized in the presence of roller, so as to realize the transfer of patient, the first idle pulley 304 and the second idle pulley 304 '
Acted on changed course, the center that guarantee entirely lifts is constant, maintains integrally-built stability.
The utility model uses the control mode of bi-motor, by controlling to motor-driven forced synchronism or respectively mould
Formula, controllable the first heave hand is synchronous with second heave hand or rises or falls respectively, so that lifting arm is in same level
On line or not in the same horizontal line, risen with single motor control both sides compared with heave hand moves simultaneously, double heave hands can pass through it
Corresponding motor is controlled respectively, realizes asymmetric loss of weight adjustment during rehabilitation, moreover, can either be synchronized with the movement,
It can move alone, suitable for different types of patient, be widely used.
The utility model uses the lifting device of double lifting band structures, effectively prevent the heave hand that rises used and twists together, be stuck,
Service life of equipment is improved, ensures stationarity during patient's transfer.
The utility model overall structure is stable, and the mounting structure between each parts is compact, effectively solves in the prior art
Safety Redundancy designs.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
The various modifications and improvement that the technical scheme of utility model is made, the protection of the utility model claims book determination all should be fallen into
In the range of.
Claims (10)
1. a kind of bi-motor biobelt lifting device of sky rail patient transfer system, including track, it is characterised in that：The track
Bottom is provided with sliding equipment, and the bottom of the sliding equipment is fixed with hoisting mechanism；
The hoisting mechanism includes the first connecting plate, the second connecting plate, the first motor and the second motor, and first motor is located at
The inner side of first connecting plate, second motor are located at the inner side of second connecting plate, first motor and second
Placed independently of each other between motor, first pulley and the first idle pulley, the first band are installed on the outside of first connecting plate
The first heave hand is wound with wheel, the first heave hand passes through first idle pulley, the outside installation of second connecting plate
There are the second belt wheel and the second idle pulley, be wound with second heave hand on second belt wheel, second heave hand is through described the
Two idle pulleys, the first heave hand are risen or fallen by first pulley realization described in first motor driven, and described second
Lifting band is risen or fallen by the second belt wheel realization described in second motor driven, the first heave hand and the second lifting
Band is provided with lifting arm on same vertical section between the first heave hand and second heave hand, the bottom of the lifting arm is set
There is connecting traverse.
2. the bi-motor biobelt lifting device of sky rail patient transfer system according to claim 1, it is characterised in that：Institute
Stating sliding equipment includes roller mount, and the roller mount is provided with roller, and the roller is adapted with the track.
3. the bi-motor biobelt lifting device of sky rail patient transfer system according to claim 2, it is characterised in that：Institute
State the first connecting plate and the second connecting plate is fixed on the both ends of the roller mount, first motor and the second motor are respectively positioned on institute
State in the framework that the first connecting plate, the second connecting plate and roller mount are assembled into.
4. the bi-motor biobelt lifting device of sky rail patient transfer system according to claim 3, it is characterised in that：Institute
State and first sensor is fixed with the outside of the first connecting plate, second sensor is fixed with the outside of second connecting plate, it is described
First sensor is separately mounted to the lower end of the roller mount with second sensor.
5. the bi-motor biobelt lifting device of sky rail patient's transfer system according to claim 1 or 3 or 4, its feature
It is：First rotating shaft, the first rotating shaft and the motor of first motor are provided between the first pulley and the first motor
Axis connection, the second rotating shaft, second rotating shaft and the electricity of second motor are provided between second belt wheel and the second motor
Arbor connects.
6. the bi-motor biobelt lifting device of sky rail patient transfer system according to claim 5, it is characterised in that：Institute
State and the 3rd rotating shaft is provided between the first idle pulley and the first connecting plate, first idle pulley is located at the end of the 3rd rotating shaft, institute
State and the 4th rotating shaft is provided between the second idle pulley and the second connecting plate, second idle pulley is located at the end of the 4th rotating shaft.
7. according to the bi-motor biobelt lifting device of any described sky rail patient's transfer system of claim 1 or 6, its feature
It is：The first pulley is identical with the diameter of the second belt wheel, and first idle pulley is identical with the diameter of the second idle pulley, and described
The diameter of one idle pulley is less than the diameter of the first pulley, and the diameter of second idle pulley is less than the diameter of second belt wheel.
8. the bi-motor biobelt lifting device of sky rail patient transfer system according to claim 7, it is characterised in that：Institute
The side for stating the first idle pulley and the second idle pulley is provided with gear shaft, and the gear shaft is separately fixed at first connecting plate and is connected with second
The outside of plate.
9. the bi-motor biobelt lifting device of sky rail patient transfer system according to claim 1, it is characterised in that：Institute
The centre for stating lifting arm is provided with the 5th rotating shaft of vertical activity, and the connecting traverse is fixed on the lower end of the 5th rotating shaft.
10. the bi-motor biobelt lifting device of sky rail patient's transfer system according to claim 1 or 9, its feature exist
In：The lifting arm is located at the end of the first heave hand and second heave hand, the first heave hand and second heave hand
End be fixed on respectively by groove latch structure on the lifting arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621419777.2U CN206675665U (en) | 2016-12-21 | 2016-12-21 | The bi-motor biobelt lifting device of sky rail patient's transfer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621419777.2U CN206675665U (en) | 2016-12-21 | 2016-12-21 | The bi-motor biobelt lifting device of sky rail patient's transfer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206675665U true CN206675665U (en) | 2017-11-28 |
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ID=60395448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621419777.2U Active CN206675665U (en) | 2016-12-21 | 2016-12-21 | The bi-motor biobelt lifting device of sky rail patient's transfer system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455412A (en) * | 2018-03-13 | 2018-08-28 | 朱蓓 | A kind of medical apparatus being used to help the elderly's stair activity |
| CN108483193A (en) * | 2018-03-13 | 2018-09-04 | 朱蓓 | A kind of medical winding device being used to help the elderly's stair activity |
| CN108670642A (en) * | 2018-06-04 | 2018-10-19 | 昆山福宏康复科技有限公司 | A kind of day rail shifting machine |
| CN109969910A (en) * | 2019-05-15 | 2019-07-05 | 高百争 | A kind of moonwalk stair power assisting device |
| CN110368230A (en) * | 2019-07-22 | 2019-10-25 | 安徽职业技术学院 | A kind of sky rail shifting machine |
| CN110547931A (en) * | 2019-08-01 | 2019-12-10 | 安徽信息工程学院 | Device for assisting old people to get up |
| CN113116659A (en) * | 2020-01-15 | 2021-07-16 | 第一传动科技股份有限公司 | Lifting carrier for medical care |
| CN113925713A (en) * | 2021-10-25 | 2022-01-14 | 苏州美瑞德建筑装饰有限公司 | Emergency accessible channel construction process and structure capable of rapidly conveying stretcher |
| US11344462B2 (en) | 2018-09-19 | 2022-05-31 | Liko Research & Development Ab | Person lifting apparatuses including lifting straps and methods of operation based on current draw |
-
2016
- 2016-12-21 CN CN201621419777.2U patent/CN206675665U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455412A (en) * | 2018-03-13 | 2018-08-28 | 朱蓓 | A kind of medical apparatus being used to help the elderly's stair activity |
| CN108483193A (en) * | 2018-03-13 | 2018-09-04 | 朱蓓 | A kind of medical winding device being used to help the elderly's stair activity |
| CN108670642A (en) * | 2018-06-04 | 2018-10-19 | 昆山福宏康复科技有限公司 | A kind of day rail shifting machine |
| US11344462B2 (en) | 2018-09-19 | 2022-05-31 | Liko Research & Development Ab | Person lifting apparatuses including lifting straps and methods of operation based on current draw |
| CN109969910A (en) * | 2019-05-15 | 2019-07-05 | 高百争 | A kind of moonwalk stair power assisting device |
| CN110368230A (en) * | 2019-07-22 | 2019-10-25 | 安徽职业技术学院 | A kind of sky rail shifting machine |
| CN110547931A (en) * | 2019-08-01 | 2019-12-10 | 安徽信息工程学院 | Device for assisting old people to get up |
| CN113116659A (en) * | 2020-01-15 | 2021-07-16 | 第一传动科技股份有限公司 | Lifting carrier for medical care |
| CN113925713A (en) * | 2021-10-25 | 2022-01-14 | 苏州美瑞德建筑装饰有限公司 | Emergency accessible channel construction process and structure capable of rapidly conveying stretcher |
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