CN111700740B - A stretcher bed getting on and off device and a stretcher bed with automatic getting on and off - Google Patents
A stretcher bed getting on and off device and a stretcher bed with automatic getting on and off Download PDFInfo
- Publication number
- CN111700740B CN111700740B CN202010535624.9A CN202010535624A CN111700740B CN 111700740 B CN111700740 B CN 111700740B CN 202010535624 A CN202010535624 A CN 202010535624A CN 111700740 B CN111700740 B CN 111700740B
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- stretcher
- piece
- guide
- meshing piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 120
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 230000001360 synchronised effect Effects 0.000 claims abstract description 35
- 230000000670 limiting effect Effects 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
- A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
- A61G3/0218—Loading or unloading stretchers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/02—Stretchers with wheels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
- A61G3/08—Accommodating or securing wheelchairs or stretchers
- A61G3/0816—Accommodating or securing stretchers
- A61G3/0825—Accommodating or securing stretchers using support rack, frame
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
- A61G3/08—Accommodating or securing wheelchairs or stretchers
- A61G3/0816—Accommodating or securing stretchers
- A61G3/0875—Securing stretchers, e.g. fastening means
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
本发明专利公开了一种担架床上下车装置及自动上下车担架床，包括：固定架，具有滑轨；动力机构，包括相连接的电机和同步带；滑动架；传动机构，包括相连接的固定座、传动轴和锁定结构；所述固定架于所述滑轨的延伸方向上的一端具有触发结构，第一状态下，所述同步带可带动所述传动机构沿着所述滑轨方向移动，第二状态下所述同步带可带动所述传动轴转动；以及，输送机构；本专利的担架床上下车装置结构紧凑，可自动实现电机输出功能的切换，无需人工干预，上下车装置会自动完成整个上下车动作，用户仅需在输送带上拆卸或安装担架床，节约了担架床上下车所需时间，简化操作。
The present invention patent discloses a stretcher bed getting on and off device and an automatic getting on and off stretcher bed, comprising: a fixed frame, having a slide rail; a power mechanism, comprising a connected motor and a synchronous belt; a sliding frame; a transmission mechanism, comprising a connected fixed seat, a transmission shaft and a locking structure; the fixed frame has a trigger structure at one end in the extension direction of the slide rail, and in a first state, the synchronous belt can drive the transmission mechanism to move along the direction of the slide rail, and in a second state, the synchronous belt can drive the transmission shaft to rotate; and a conveying mechanism; the stretcher bed getting on and off device of the present patent has a compact structure and can automatically realize the switching of the motor output function without manual intervention. The getting on and off device will automatically complete the entire getting on and off action. The user only needs to disassemble or install the stretcher bed on the conveyor belt, which saves the time required for getting on and off the stretcher bed and simplifies the operation.
Description
Technical Field
The invention relates to the field of stretcher beds and stretcher bed conveying devices, in particular to a stretcher bed loading and unloading device and an automatic loading and unloading stretcher bed.
Background
At present, the ambulance is basically provided with a stretcher bed so as to realize the transfer of patients and temporary treatment on the ambulance, and the patient is easily injured due to improper force in the process of directly lifting the stretcher bed carrying the patients up and down the ambulance. In the prior art, automatic getting-on and getting-off devices are adopted to realize automatic getting-on and getting-off of the stretcher, but the getting-on and getting-off devices often have too short travel and poor auxiliary effect. Therefore, whether a stretcher getting-on/off device with a larger stroke and capable of achieving automatic getting-on/off in the whole process from the ground to the emergency ambulance is a technical problem expected to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a stretcher getting-on/off device and an automatic getting-on/off stretcher, which only need to use one motor to provide power, and the output function of the motor is adjusted by arranging an adaptive locking structure and a triggering structure, so that the switching of the two power outputs of a sliding frame and the stretcher is realized.
The technical scheme provided by the invention is as follows:
a stretcher boarding and alighting device, comprising:
The fixing frame is provided with a sliding rail;
The power mechanism comprises a motor and a synchronous belt which are connected, the motor is fixed on the fixing frame, the motor is used for driving the synchronous belt, and the setting direction of the synchronous belt is the same as the direction of the sliding rail;
The sliding frame can slide on the sliding rail;
the transmission mechanism comprises a fixed seat, a transmission shaft and a locking structure which are connected, wherein the fixed seat is fixed on the sliding frame, the synchronous belt is connected with the transmission shaft, one end of the fixed frame in the extending direction of the sliding rail is provided with a triggering structure which is matched with the locking structure,
In the first state, the triggering structure is not contacted with the locking structure, the transmission shaft is fixed with the fixed seat, the synchronous belt can drive the transmission mechanism to move along the direction of the sliding rail,
In the second state, the trigger structure interacts with the locking structure, the transmission shaft is rotationally connected with the fixing seat, the synchronous belt can drive the transmission shaft to rotate, and
The conveying mechanism comprises a conveying belt, the conveying belt is connected with the transmission shaft, and the transmission shaft can drive the conveying belt.
In the first state, the relative positions among the transmission mechanism, the sliding frame and the conveying mechanism are fixed, and the whole body can slide on the sliding rail relative to the fixed frame. When the sliding frame does not slide to one end close to the triggering structure, and the triggering structure fails to trigger the locking structure, the transmission mechanism is fixed with the synchronous belt, at the moment, the motor moves, and the synchronous belt can move along the sliding rail direction with the sliding frame and other structures. The stretcher can be fixed on the conveying belt, and the stretcher moves relative to the fixing frame at the stage.
Under the first state, wait that the carriage removes to the one end of slide rail, trigger structure triggers locking structure for the transmission shaft can rotate along with the hold-in range, and drive mechanism, carriage and conveying mechanism's position relative mount keeps unchanged this moment, and only the conveyer belt in the conveying mechanism rotates along with the transmission shaft. At this stage, the stretcher is moved relative to the carriage.
After the trigger structure and the locking structure which are matched are arranged, the same motor is used, so that the stretcher can move relative to the fixed frame and the two ends of the stretcher relative to the sliding frame, and the automation of getting on and off the stretcher can be realized. The fixing frame can be fixed on the ambulance.
The second meshing piece is sleeved with the transmission shaft and can slide on the transmission shaft, the first meshing piece and the second meshing piece can be meshed through teeth arranged in the circumferential direction of the transmission shaft, the limiting piece provides limiting for the second meshing piece in the circumferential direction of the transmission shaft, and the resetting piece provides limiting for the second meshing piece in the axial direction of the transmission shaft;
The second meshing piece is provided with an inclined surface, and the distance between the inclined surface and the radial section of the transmission shaft is gradually increased in the extending direction of the sliding rail;
the triggering structure is a guide pillar, and the guide pillar is matched with the inclined surface;
In a first state, the first engagement piece and the second engagement piece are engaged and fixed;
In the second state, the guide post abuts against the inclined surface, so that the first meshing piece and the second meshing piece are far away from each other.
In the first state, the first meshing piece is meshed with the second meshing piece, and the second meshing piece is limited by the limiting piece and cannot rotate around the axis of the transmission shaft, so that the transmission shaft is fixed through the first meshing piece. In the second stage, the guide pillar is propped against the inclined surface, part of the pressure of the guide pillar on the inclined surface along the direction of the sliding rail can be converted into the pressure on the second meshing piece along the axial direction of the transmission shaft by the inclined surface, so that the first meshing piece and the second meshing piece are separated from each other, and at the moment, the transmission shaft can freely rotate the transmission shaft to drive the conveying mechanism to operate.
Still preferably, the limiting member is a guide shaft, the guide shaft and the transmission shaft are fixed on the fixing seat in parallel, and the second engagement member is provided with a through hole adapted to the guide shaft.
The second meshing piece can slide on the guide shaft through the through hole, and the guide shaft has an effective limiting effect on the second meshing piece. When first meshing piece and second meshing piece are fixed mutually, other structures such as the hold-in range passes through the frictional force drive carriage between with the transmission shaft, consequently can exist great stress between first meshing piece and the second meshing piece, and the guide shaft can play great holding power to the second meshing piece, improves the stability of equipment.
Further preferably, the number of the guide shafts is two, and the two guide shafts are respectively located at two sides of the transmission shaft, so that stress on the second meshing piece is uniformly dispersed, and the strength of the second meshing piece is improved.
Further preferably, the guide shaft is provided with a third guide wheel, and the third guide wheel is used for pressing the synchronous belt on the transmission shaft. The third guide wheel is used for increasing the wrap angle between the synchronous belt and the transmission shaft, improving the friction force between the synchronous belt and the transmission shaft, and avoiding that the motor cannot drive the sliding seat to move due to the fact that the synchronous belt slips in the first state.
Further preferably, the transmission shaft is provided with a first guide wheel and a second guide wheel, the first guide wheel is connected with the synchronous belt, the second guide wheel is connected with the conveying belt, and the second guide wheel, the first meshing piece and the second meshing piece are sequentially arranged.
The first guide wheel outputs power to the transmission shaft, the part of the transmission shaft between the first guide wheel and the first meshing piece is stressed greatly in the first state, the part of the transmission shaft between the first guide wheel and the second guide wheel is stressed greatly in the second state, the first guide wheel is positioned in the middle of the transmission shaft, the stress conditions on two sides of the transmission shaft in the operation process are basically symmetrical, the damage to the transmission shaft caused by stress concentration at a certain position is avoided, and the service life of the device is prolonged.
Further preferably, two ends of the transmission shaft and a portion of the transmission shaft between the first guide wheel and the second guide wheel are respectively connected with the fixing seat through bearings.
The three guide wheels and the second meshing part can respectively play a supporting role on one end of the transmission shaft, between the second guide wheel and the first guide wheel, between the first guide wheel and the first meshing part, between the first meshing part and the other end of the transmission shaft, so that the integral strength of the transmission shaft is improved, the transmission shaft is prevented from breaking, and the service life of the transmission shaft is prolonged.
Further preferably, the fixing seat is provided with a groove for the guide post to enter. The whole structure of the transmission mechanism is further integrated, the volume is reduced, and the weight is reduced.
Further preferably, the reset member is a spring, when the guide post abuts against the inclined surface, the guide post provides pressure for the second engagement member to overcome the elastic force of the spring, so that the second engagement member is far away from the first engagement member, and when the guide post leaves the inclined surface, the elastic force of the spring enables the second engagement member to be meshed and fixed with the first engagement member.
The limiting piece can play a limiting role on the second meshing piece in the direction beyond the axial direction of the transmission shaft, so that the spring only needs to provide limiting along the axial direction of the transmission shaft for the limiting piece, and the automatic resetting of the second meshing piece can be realized.
The stretcher comprises a stretcher and a stretcher getting-on/off device with the characteristics, wherein the stretcher is detachably fixed on the conveying belt.
The intelligent stretcher has the advantages that the adaptive synchronous belt and the transmission mechanism are arranged on the stretcher getting-on/off device creatively, two actions of the stretcher relative to the fixing frame and the stretcher relative to the sliding frame can be realized by only using one motor, the structure is more compact, the adaptive locking structure and the triggering structure are arranged, the automatic switching of the output function of the motor is realized, manual intervention is not needed, the whole getting-on/off action of the stretcher getting-on/off device can be automatically completed, and a user only needs to detach or install the stretcher on the conveying belt, so that the time required for getting-on/off the stretcher is saved, and the operation is simplified.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic view of a device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a device according to an embodiment of the present invention;
FIG. 3 is a schematic view of the device when the trigger mechanism contacts the locking mechanism according to one embodiment of the present invention;
FIG. 4 is a schematic view of an apparatus structure with a portion of the carriage omitted in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view showing the structure of the device when the first engaging member and the second engaging member are engaged and fixed according to one embodiment of the present invention;
Fig. 6 is a schematic view showing the structure of the device when the first engaging member and the second engaging member are disengaged according to an embodiment of the present invention.
Reference numerals illustrate:
100-fixing frame, 110-sliding rail, 120-triggering structure, 121-guide pillar, 200-power mechanism, 210-motor, 220-synchronous belt, 300-sliding frame, 400-driving mechanism, 410-fixing seat, 411-groove, 420-driving shaft, 421-first guide wheel, 422-second guide wheel, 430-locking structure, 431-first meshing piece, 432-second meshing piece, 433-limiting piece, 434-resetting piece, 435-tooth, 436-inclined surface, 437-third guide wheel, 500-conveying mechanism, 510-conveying belt, 600-stretcher bed and 610-connecting piece.
Detailed Description
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
As a specific embodiment, as shown in fig. 1-4, a stretcher boarding and alighting device comprises a fixing frame 100, a power mechanism 200 arranged on the fixing frame 100 and used for providing power for the boarding and alighting device, a sliding frame 300, a transmission mechanism 400 and a conveying mechanism 500, wherein the sliding frame 300 can drive the transmission mechanism 400 and the conveying mechanism 500 to move relative to the fixing frame 100 under the driving of the power mechanism 200, and the transmission mechanism 400 can also be used for conveying power to the conveying mechanism 500.
As shown in fig. 2 and 3, the fixing frame 100 is provided with a sliding rail 110, and the sliding frame 300 may slide on the sliding rail 110 with other devices. In this patent, a plurality of pulleys are provided on the sliding rail 110 to reduce friction between the sliding rail 110 and the sliding frame 300.
The power mechanism 200 includes a motor 210 and a timing belt 220 connected, as shown in fig. 2-4, the motor 210 is fixed on the fixing frame 100, and remains stationary with the fixing frame 100, as shown in fig. 2 and 4, the timing belt 220 is disposed along the extending direction of the slide rail 110. The synchronous belt 220 can drive the sliding frame 300 to move along the direction of the synchronous belt 220 through the transmission mechanism 400. Fig. 2 is a schematic view of the stretcher 600 when retracted, fig. 4 is a schematic view of the structure of the carriage 300 when moved to one end of the fixing frame 100, and the change between the device configurations shown in fig. 2 and 4 is that the motor 210 drives the transmission mechanism 400, the carriage 300 and the stretcher 600 to slide along the direction of the sliding rail 110 through the synchronous belt 220.
As shown in fig. 4, the transmission mechanism 400 is connected with the conveying mechanism 500, the transmission mechanism 400 can drive the conveying belt 510 in the conveying mechanism 500 to operate, the conveying belt 510 is fixed with a connecting piece 610, and the connecting piece 610 is used for being detachably fixed with the stretcher 600. When the device is in the state shown in fig. 3, the power output by the power mechanism 200 is distributed to the conveyor belt 510 of the conveying mechanism 500 by the transmission mechanism 400, and the conveyor belt 510 drives the connecting member 610 and the stretcher 600 on the connecting member 610 to continue to be unfolded, and the motion state is the second state.
The switching between the first state and the second state is achieved by the triggering mechanism 120 on the fixing frame 100 and the locking mechanism 430 on the transmission mechanism 400.
Fig. 5 shows a schematic diagram of the transmission 400 in a first state. The transmission mechanism 400 includes a fixed base 410, a transmission shaft 420, and a locking structure 430. The fixing base 410 is fixed on the sliding frame 300, so as to transmit the force, received by the transmission shaft 420 in the first state, along the direction of the sliding rail 110 to the sliding frame 300, so as to drive the sliding frame 300. The fixing frame 100 is provided with a plurality of baffle transmission shafts 420 which are rotatably connected with a plurality of baffles through bearings. The transmission shaft 420 has a first guide wheel 421 and a second guide wheel 422 coaxially fixed thereon, and as can be seen from fig. 4, the first guide wheel 421 is connected to the timing belt 220, and the second guide wheel 422 is connected to the conveyor belt 510. The limiting structure comprises a first engaging member 431 and a second engaging member 432, wherein the first engaging member 431 and the second engaging member 432 are provided with teeth 435 in the circumferential direction of the transmission shaft 420 and can be engaged with each other through the teeth 435, the first engaging member 431 is coaxially fixed with the transmission shaft 420, a limiting member 433, i.e., two guide shafts, is arranged between the two baffle plates, the second engaging member 432 is sleeved on the transmission shaft 420, and the two guide shafts pass through the second engaging member 432. One end of the second engagement member 432 is connected to a return member 434, i.e., a spring, and the other end of the return member 434 is fixed to a baffle plate.
Fig. 5 shows a state in which the second engaging member 432 is engaged with the first engaging member 431, and as shown in fig. 5, since the second engaging member 432 is restrained by the restraining member 433 and cannot rotate, when the first engaging member 431 is engaged with the second engaging member 432, the second engaging member 432 fixes the transmission shaft 420 by the first engaging member 431, thereby restraining the transmission shaft 420. The synchronous wheel passes through the first guide wheel 421 and is pressed on the surface of the first guide wheel 421 by the third guide wheel 437 on the guide shaft, and the synchronous belt 220 and the transmission shaft 420 have a larger wrap angle, so that the synchronous belt 220 and the transmission shaft 420 cannot slip. When the synchronous belt 220 is operated, the whole transmission mechanism 400 can only be operated along with the synchronous belt 220 due to the fact that the transmission shaft 420 cannot rotate, and the fixed seat 410 is fixed with the sliding frame 300, so that the output power of the motor 210 is used for driving the sliding frame 300 and the structure fixed with the sliding frame 300 to move along the direction of the sliding rail 110.
As shown in fig. 3, in the first state, when the sliding frame 300 moves to approach to one end of the triggering structure 120, and when the triggering structure 120 contacts with the locking structure 430, the triggering structure 120 and the locking structure 430 are schematically shown in fig. 6. As can be seen from fig. 6, the triggering structure 120 has a guide post 121, where the guide post 121 extends into the groove 411 of the fixing seat 410, one side of the guide post 121 abuts against the inclined surface 436 of the second engaging member 432, and the inclined surface 436 converts a portion of the pressure of the guide post 121 against the inclined surface 436 into a force along the axial direction of the transmission shaft 420, so that the second engaging member 432 moves away from the first engaging member 431 against the elastic force of the spring. In this state, i.e. the second state, the second engaging member 432 will not limit the first engaging member 431, and the transmission shaft 420 can freely transmit. In the second state, the motor 210 drives the synchronous belt 220 to continue to rotate, the synchronous belt 220 drives the transmission shaft 420 through the first guide wheel 421, the transmission shaft 420 drives the transmission belt 510 of the transmission mechanism 500 to start working through the second guide wheel 422, the transmission belt 510 is fixed with the stretcher 600 through the connecting piece 610, and the stretcher 600 continues to be transported outwards until being transported to a detachable area such as the bottom surface.
By now it will be appreciated by those skilled in the art that the transmission mechanism 400 and the trigger mechanism 120 of the present patent are in fact the key points of the present patent. In this embodiment, the third guide wheel 437 is disposed on the guide shaft through a bearing, which is beneficial to reducing the space occupied by the device as a whole, and in actual production, the guide wheel and the limiting member 433 may be disposed separately. The trigger structure 120 and the locking structure 430 interact to realize the conversion of the output function of the motor 210, under the condition of adopting only the same motor 210, the stretcher 600 is realized relative to the fixing frame 100 and the stretcher 600 is moved relative to the sliding frame 300, two sections of movement of the stretcher 600 are arranged, a user only needs to detach or install the stretcher 600 and the connecting piece 610, the getting-on/off device can automatically complete the whole lifting and descending work of the stretcher, and compared with manual carrying, the motor 210 can keep stable in the getting-on/off process of the stretcher 600, and the use comfort of the user is improved.
The stopper 433 includes two guide shafts which support the second engagement piece 432 from both sides. In the first state, a larger stress exists between the first engaging member 431 and the second engaging member 432, and the two guide shafts can effectively disperse the stress received by the second engaging member 432, so that the strength of the device is improved, and the service life of the device is prolonged. The second engaging member 432 is provided with a through hole for the guide shaft to pass through, in actual production, the limiting member 433 can adopt other commonly used structures, the second engaging member 432 can correspondingly keep provided with the through hole or cancel the through hole, and when the limiting member 433 adopts the guide shaft, the number of the guide shafts can also be increased or decreased according to the output power of the motor 210. The slide rail 110 may be provided with a proximity switch to prompt the control device of the running status of the get-on/off device, and the control device may select a suitable output power according to the status of the get-on/off device, so as to improve the comfort level of the patient.
After the limiting member 433 is arranged, the second engaging member 432 only has the freedom of movement along the direction of the transmission shaft 420, and does not rotate or deflect, so that the reset member 434 can adopt a spring with lower strength, the whole structure of the device is simple, the volume of the transmission mechanism 400 is reduced, and in actual production, the reset member 434 can adopt other common structures such as a telescopic rod. The fixing base 410 is provided with the groove 411 for the guide post 121 to enter, so that the inclined surface 436 of the second engaging member 432 can be arranged on the fixing base 410 without protruding out of the fixing base 410, so that the size of the transmission mechanism 400 in the direction of the sliding rail 110 is reduced, and the sliding range of the sliding frame 300 is increased.
As shown in fig. 2, in the present embodiment, the motor 210 is connected to the timing belt 220 through a belt transmission structure, so that the size of the device in the transverse direction of the guide rail can be reduced, and in actual production, the output end of the motor 210 can be directly connected to the timing belt 220 through a guide wheel.
As shown in fig. 5 and 6, in the extending direction of the transmission shaft 420, the second guide wheel 422, the first guide wheel 421, the first engaging member 431, the second engaging member 432 and the reset member 434 are sequentially arranged, and the end portion of the transmission shaft 420 close to the second guide wheel 422, the end portion of the transmission shaft 420 between the second guide wheel 422 and the first guide wheel 421, and the end of the transmission shaft 420 far away from the second guide wheel 422 are respectively fixed with three baffles through bearings, and cooperate with the limiting member 433 having a limiting function, the transmission mechanism 400 has a higher strength as a whole, and the transmission shaft 420 is supported by multiple segments and is not easy to break.
In the first state, the first guide wheel 421 receives a large friction force, which forms a large stress between the first engaging member 431 and the second engaging member 432, and the stress is concentrated at one end of the driving shaft 420 near the first engaging member 431. In the second state, the first guide wheel 421 still receives a larger friction force, and the work output by the motor 210 is transmitted to the conveyor belt 510 through the second guide wheel 422, at this time, the second guide wheel 422 receives a larger friction force, and the stress concentration at one end of the transmission shaft 420 near the second guide wheel 422. That is, after the first state and the second state are switched, the stress distribution on the drive shaft 420 is substantially symmetrical. In the first state, the stress at one end of the transmission shaft 420 near the second guide wheel 422 is smaller, and in the second state, the stress at one end of the transmission shaft 420 near the first engagement member 431 is smaller, so that the phenomenon that a certain part of the transmission shaft 420 is easily damaged due to the concentration of the attractive force all the time can be avoided. In actual production, the arrangement sequence of the first guide wheel 421, the second guide wheel 422, the first engaging member 431, the second engaging member 432 and the reset member 434 can be adjusted, and the adjusted schemes are all within the protection scope of the present patent.
The present invention provides an embodiment of a self-loading and unloading cot, as shown in fig. 1-4, comprising a cot 600 and a cot loading and unloading device having the foregoing features.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A stretcher boarding and alighting device, characterized by comprising:
The fixing frame is provided with a sliding rail;
The power mechanism comprises a motor and a synchronous belt which are connected, the motor is fixed on the fixing frame, the motor is used for driving the synchronous belt, and the setting direction of the synchronous belt is the same as the direction of the sliding rail;
The sliding frame can slide on the sliding rail;
the transmission mechanism comprises a fixed seat, a transmission shaft and a locking structure which are connected, wherein the fixed seat is fixed on the sliding frame, the synchronous belt is connected with the transmission shaft, one end of the fixed frame in the extending direction of the sliding rail is provided with a triggering structure which is matched with the locking structure,
In the first state, the triggering structure is not contacted with the locking structure, the transmission shaft is fixed with the fixed seat, the synchronous belt can drive the transmission mechanism to move along the direction of the sliding rail,
In the second state, the trigger structure interacts with the locking structure, the transmission shaft is rotationally connected with the fixing seat, the synchronous belt can drive the transmission shaft to rotate, and
The conveying mechanism comprises a conveying belt, the conveying belt is connected with the transmission shaft, and the transmission shaft can drive the conveying belt.
2. The stretcher boarding and disembarking device of claim 1, wherein:
The locking structure comprises a first meshing piece, a second meshing piece, a limiting piece and a resetting piece, and the first meshing piece is coaxially fixed with the transmission shaft; the second meshing piece is sleeved with the transmission shaft and can slide on the transmission shaft, the first meshing piece and the second meshing piece can be meshed through teeth arranged in the circumferential direction of the transmission shaft, the limiting piece is used for limiting the second meshing piece in the circumferential direction of the transmission shaft, and the resetting piece is used for limiting the second meshing piece in the axial direction of the transmission shaft;
The second meshing piece is provided with an inclined surface, and the distance between the inclined surface and the radial section of the transmission shaft is gradually increased in the extending direction of the sliding rail;
the triggering structure is a guide pillar, and the guide pillar is matched with the inclined surface;
In a first state, the first engagement piece and the second engagement piece are engaged and fixed;
In the second state, the guide post abuts against the inclined surface, so that the first meshing piece and the second meshing piece are far away from each other.
3. A stretcher boarding and alighting device according to claim 2, characterized by:
The limiting piece is a guide shaft, the guide shaft and the transmission shaft are fixed on the fixing base in parallel, and the second meshing piece is provided with a through hole matched with the guide shaft.
4. A stretcher boarding and alighting device according to claim 3, characterized by:
the number of the guide shafts is two, and the two guide shafts are respectively positioned at two sides of the transmission shaft.
5. A stretcher boarding and alighting device according to claim 3, characterized by:
The guide shaft is provided with a third guide wheel which is used for pressing the synchronous belt on the transmission shaft.
6. A stretcher boarding and alighting device according to claim 2, characterized by:
The transmission shaft is provided with a first guide wheel and a second guide wheel, the first guide wheel is connected with the synchronous belt, the second guide wheel is connected with the conveying belt, and the second guide wheel, the first meshing piece and the second meshing piece are sequentially arranged.
7. The stretcher boarding and disembarking device of claim 6, wherein:
the two ends of the transmission shaft and the part of the transmission shaft between the first guide wheel and the second guide wheel are respectively connected with the fixing seat through bearings.
8. A stretcher boarding and alighting device according to claim 2, characterized by:
the fixing seat is provided with a groove for the guide post to enter.
9. A stretcher boarding and alighting device according to claim 2, characterized by:
The reset piece is a spring, when the guide post abuts against the inclined surface, the guide post provides pressure for the second meshing piece, the elastic force of the spring is overcome, the second meshing piece is far away from the first meshing piece, and when the guide post leaves the inclined surface, the elastic force of the spring enables the second meshing piece to be meshed and fixed with the first meshing piece.
10. An automatic loading and unloading stretcher, characterized by comprising a stretcher and a stretcher loading and unloading device according to any one of claims 1-9, wherein the stretcher is detachably fixed on the conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535624.9A CN111700740B (en) | 2020-06-12 | 2020-06-12 | A stretcher bed getting on and off device and a stretcher bed with automatic getting on and off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010535624.9A CN111700740B (en) | 2020-06-12 | 2020-06-12 | A stretcher bed getting on and off device and a stretcher bed with automatic getting on and off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111700740A CN111700740A (en) | 2020-09-25 |
| CN111700740B true CN111700740B (en) | 2025-03-07 |
Family
ID=72540787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010535624.9A Active CN111700740B (en) | 2020-06-12 | 2020-06-12 | A stretcher bed getting on and off device and a stretcher bed with automatic getting on and off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111700740B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212853849U (en) * | 2020-06-12 | 2021-04-02 | 上海新纪元机器人有限公司 | Stretcher getting-on and getting-off device and automatic getting-on and getting-off stretcher |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2543472B2 (en) * | 1993-04-01 | 1996-10-16 | 札幌ボデー工業株式会社 | Stretcher transfer device installed in vehicle for transporting injured persons |
| JP3299218B2 (en) * | 1999-04-23 | 2002-07-08 | 日本リフト株式会社 | Sliding lifting device |
| JP4015805B2 (en) * | 2000-11-17 | 2007-11-28 | 新明和リビテック株式会社 | Stretcher transfer device for ambulance |
| CN2609532Y (en) * | 2003-03-21 | 2004-04-07 | 刘焱 | Stretcher bed for ambulance |
| JP4720241B2 (en) * | 2005-03-25 | 2011-07-13 | 日産自動車株式会社 | Slide lock mechanism of anti-vibration bed for ambulance |
| DE102008005900A1 (en) * | 2008-01-24 | 2009-07-30 | Bayerisches Rotes Kreuz, Körperschaft des öffentlichen Rechts | Telescopic like extensible ambulance table for use in patient room in emergency vehicle, has actuator driven backwards and forwards in longitudinal direction, and control device controlling drive of actuator depending on position and load |
| WO2011041170A2 (en) * | 2009-10-02 | 2011-04-07 | Stryker Corporation | Ambulance cot and loading and unloading system |
| CN202942303U (en) * | 2012-12-17 | 2013-05-22 | 江苏日新医疗设备有限公司 | Stretcher cabin |
| KR101592489B1 (en) * | 2014-07-08 | 2016-02-05 | 주식회사 오텍 | Folding Stretcher loading and unloading Apparatus for Ambulance |
| KR101643594B1 (en) * | 2014-07-08 | 2016-07-29 | 주식회사 오텍 | Folding Stretcher Guide Apparatus for Ambulance |
| CN104188768B (en) * | 2014-09-23 | 2016-06-22 | 宁波Gqy视讯股份有限公司 | A kind of stretcher locking device |
| CN105748214B (en) * | 2016-04-11 | 2018-06-05 | 上海新纪元机器人有限公司 | Locking device applied to stretcher |
| CN110151411B (en) * | 2019-06-05 | 2024-09-06 | 江苏日新医疗设备股份有限公司 | Electric stretcher bin |
-
2020
- 2020-06-12 CN CN202010535624.9A patent/CN111700740B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212853849U (en) * | 2020-06-12 | 2021-04-02 | 上海新纪元机器人有限公司 | Stretcher getting-on and getting-off device and automatic getting-on and getting-off stretcher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111700740A (en) | 2020-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106420227B (en) | Sitting-lying double-purpose transportation of patients machine | |
| CN102805693B (en) | A kind of mechanical self-service stair activity wheelchair | |
| CN105559982A (en) | Intelligent mechanical transfer device for operation patients | |
| CN215779231U (en) | Patient shifts mechanism | |
| CN109646203A (en) | Wheelchair | |
| CN111700740B (en) | A stretcher bed getting on and off device and a stretcher bed with automatic getting on and off | |
| CN107157673B (en) | Portable hospital bed | |
| CN107049653A (en) | Self-help type patient's sick bed | |
| CN104546320B (en) | Transfer system for bathing paralyzed old people | |
| CN111249074A (en) | Sickbed used in medical field | |
| CN212788916U (en) | Wheelchair bed | |
| CN212853849U (en) | Stretcher getting-on and getting-off device and automatic getting-on and getting-off stretcher | |
| CN110960360A (en) | Shock absorption stretcher capable of rapidly getting on and off ambulance | |
| CN113101080B (en) | Ware of rising is used in nursing after surgery suitable for old patient | |
| CN112336525A (en) | Safe transfer device for intensive care of children | |
| CN118415834B (en) | Nursing wheelchair capable of assisting leg extension | |
| CN112960590A (en) | Medical auxiliary transfer device | |
| KR100458481B1 (en) | A bed convertible into a chair or bedpan | |
| JP2006149516A (en) | Transfer belt attached to stretcher bed on stretcher | |
| EP2648671B1 (en) | A chair for disabled or non self-sufficient people provided with automatized lifting of the seat. | |
| CN222854116U (en) | Auxiliary shifting device for getting off bed | |
| CN222238053U (en) | Anti-rollover bed | |
| CN219184613U (en) | Nursing bed for postoperative patients | |
| CN115531092A (en) | emergency transfer bed | |
| CN112353589B (en) | Adjustable medical sickbed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |