CN111166568A - Shifting vehicle - Google Patents
Shifting vehicle Download PDFInfo
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- CN111166568A CN111166568A CN202010037878.8A CN202010037878A CN111166568A CN 111166568 A CN111166568 A CN 111166568A CN 202010037878 A CN202010037878 A CN 202010037878A CN 111166568 A CN111166568 A CN 111166568A
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- chain wheel
- cloth
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- rolling shaft
- cloth rolling
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- 239000004744 fabric Substances 0.000 claims abstract description 139
- 238000005096 rolling process Methods 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 61
- 235000004443 Ricinus communis Nutrition 0.000 claims abstract description 4
- 240000000528 Ricinus communis Species 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- 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
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- 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
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The invention discloses a shifting vehicle, which comprises a vehicle body with a lifting mechanism and universal castors and a moving bed plate mechanism for transversely moving and receiving patients, wherein the vehicle body is provided with a universal castors; the moving bed plate mechanism is arranged on a frame of the vehicle body; the moving bed plate mechanism comprises a cloth rolling shaft frame, a cloth rolling shaft, an end joint seat body, an upper moving plate, upper moving cloth, lower moving plate, lower moving cloth, a first chain wheel assembly and a ratchet wheel assembly. The core of the invention is that the first chain wheel component, the ratchet wheel component and the first chain wheel motor are arranged to replace the original transmission mode that the clutch gear, the long rack, the clutch and the clutch driving mechanism are matched together, so that the transmission structure of the moving bed plate mechanism is greatly simplified, the structure of the shift trolley is more compact and the transmission is smoother, meanwhile, the operation of the shift trolley is more humanized, and the position of a patient is corrected when necessary.
Description
Technical Field
The invention relates to a transportation tool technology for loading and unloading patients, in particular to a medical patient transfer vehicle which is suitable for hospitals to carry patients after operations or patients which are easily damaged again in the process of carrying.
Background
At present, a shifting vehicle is used for moving and transferring patients with inconvenient actions before and after a surgery, the patients are moved to the shifting vehicle from a sickbed, and then the patients are moved to an operating table or equipment needing examination/treatment by the shifting vehicle, or the patients are reversely transferred. Especially, when the patient with a wound or the patient after severe vertebra, cervical vertebra and thoracic vertebra operations is treated, the birth of the shifting trolley reduces the labor intensity of medical staff, avoids secondary injuries possibly caused by moving the patient for a plurality of times during the transferring period before and after the operation, and if the wound or the focus is possibly moved, the patient is greatly painful, and the healing of the wound after the operation is not facilitated.
The shift vehicle sold or used in the market is mainly composed of two parts, wherein one part is a vehicle body for moving, and the other part is a moving bed plate mechanism for transversely moving to receive and send patients; for example, the "medical patient transfer cart" disclosed in chinese patent 200610052776.3, the moving bed plate mechanism adopts a double-layer combination structure of an upper moving bed/upper moving cloth and a lower moving bed/lower moving cloth, and specifically includes a cloth winding shaft frame, a cloth winding shaft, an end joint seat body, a clutch gear, an upper moving bed/upper moving cloth, a lower moving bed/lower moving cloth, and the like. However, the shifting vehicle has the following defects:
the mode of realizing the autorotation or stopping the autorotation of the cloth roller adopts the joint matching of a clutch gear, a long rack, a clutch and a clutch driving mechanism, as shown in the attached figures 16-17 of the patent specification, the defects of complex design structure, complex control mode and easy failure are caused; if the clutch adopts a jaw clutch, namely a mechanical control structure for attaching and detaching two clutch gears, namely a fixed clutch gear and a movable clutch gear, when the two clutch gears are required to be combined, the two clutch gears are not coordinated, the combination is not smooth, and when the two clutch gears are required to be detached, under the condition that the two clutch gears are engaged, the separation resistance exists, so that the moving and positioning difference is large, and the transfer work of a patient cannot be completed completely.
As shown in fig. 11-12 and fig. 17 of the patent specification, the clutch driving mechanism adopts multiple transmission modes such as a small rack, a small gear, a tension rod, a rocker arm, a push rod and the like, the structure and the transmission mode are complex, and the failure rate is increased.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a shifting vehicle.
The purpose of the invention is realized by adopting the following technical scheme: a shifting vehicle comprises a vehicle body with a lifting mechanism and universal castors and a moving bed plate mechanism for transversely moving and receiving patients; the moving bed plate mechanism is arranged on a frame of the vehicle body; the moving bed plate mechanism comprises a cloth rolling shaft frame, a cloth rolling shaft, an end joint base body, an upper moving plate, upper moving cloth, lower moving plate, lower moving cloth, a first chain wheel assembly and a ratchet wheel assembly;
the cloth rolling shaft frame is longitudinally arranged, and the cloth rolling shaft is arranged in the cloth rolling shaft frame;
the end joint seat bodies are respectively and fixedly arranged at two ends of the cloth rolling shaft frame, two ends of the cloth rolling shaft are rotatably supported in the end joint seat bodies through bearings, and the end parts of the cloth rolling shaft respectively extend out of the end joint seat bodies;
one side of the upper moving plate is hinged on the end joint base body, and the upper moving cloth is wound on the peripheries of the upper moving plate and the cloth rolling shaft;
the lower moving plate is arranged below the upper moving plate, the cloth rolling shaft frame is provided with a longitudinal opening, the lower edge of the longitudinal opening is forwards extended with a connecting tongue piece, and the lower moving plate is fixedly connected to the connecting tongue piece;
the lower moving cloth is wound on the periphery of the lower moving plate; and the lower moving cloth positioned below the receiving and delivering side of the lower moving plate is fixed on the frame of the vehicle body.
The first chain wheel assembly comprises a first connecting rod shaft longitudinally arranged at the bottom of a frame of the vehicle body, a first outer side main chain wheel sleeved on the first connecting rod shaft, first driven chain wheels arranged at the front end and the rear end of the frame, and a first transmission roller chain sleeved on the first outer side main chain wheel and the first driven chain wheel; the end part of the cloth rolling shaft extending out of the end joint seat body is fixed on the first transmission roller chain through a connecting component; the connecting assembly comprises a cloth rolling shaft transmission chain wheel, an idler wheel and a fixing piece; the end part of the cloth rolling shaft is inserted into the cloth rolling shaft transmission chain wheel and is driven by the cloth rolling shaft transmission chain wheel to rotate; the first transmission roller chain is wound between the cloth rolling shaft transmission chain wheel and the idler wheel in an S shape; the cloth rolling shaft transmission chain wheel and the idler wheel are arranged on a fixing sheet, and the fixing sheet is fixed on the end joint base body;
the ratchet wheel assembly comprises a ratchet wheel, a pawl, a spring, a cam block and a ratchet wheel motor, the ratchet wheel is sleeved on the first connecting rod shaft, the connecting end of the pawl is hinged to one side of the ratchet wheel, and the clamping end of the pawl is matched with ratchet wheel teeth of the ratchet wheel; the spring is arranged on the outer side of the pawl; the cam block is fixed on a power output shaft of the ratchet motor and is positioned on the inner side of the pawl.
The invention discloses a shifting vehicle, wherein the ratchet wheel assembly further comprises a limit trigger and a microswitch; the two pawls are respectively and symmetrically arranged at the left side and the right side of the cam block; the two limit triggers are sleeved on a power output shaft of the ratchet motor and synchronously rotate with the cam block; the two microswitches are respectively and correspondingly arranged on the outer sides of the two pawls.
The invention discloses a shifting vehicle, wherein a ratchet wheel assembly is arranged on a mounting seat through a bearing; the mounting seat comprises a first mounting piece and a second mounting piece vertically connected to the bottom of the first mounting piece; the first mounting piece is provided with a notch for the first connecting shaft to pass through; the pawl is hinged on the first mounting plate; the ratchet wheel assembly further comprises a spring mounting seat for mounting a spring, the spring mounting seat is mounted on the first mounting plate, one end of the spring abuts against the spring mounting seat, and the other end of the spring abuts against the outer side of the pawl; the micro switch is installed on the second installation sheet.
The shifting trolley comprises a first connecting rod shaft, a first chain wheel assembly and a second chain wheel assembly, wherein the first connecting rod shaft is connected with the first connecting rod shaft through a first connecting rod, and the second connecting rod shaft is connected with the second connecting rod shaft through a second connecting rod.
The shifting vehicle comprises an upper shifting plate, a lower shifting plate, a shifting plate driving mechanism, a shifting plate motor, a first driving mechanism and a second driving mechanism, wherein the upper shifting plate and the lower shifting plate are driven by the shifting plate driving mechanism to synchronously move forwards or backwards and transversely; the two ends of the second connecting shaft are provided with second chain wheel assemblies; each set of second sprocket assemblies comprises a second outer main sprocket, a second driven sprocket and a second transmission roller chain; the second outside main chain wheel is sleeved on the second connecting shaft, the second driven chain wheel is respectively installed at the front end and the rear end of the frame, second transmission roller chains are matched on the second outside main chain wheel and the second driven chain wheel, and two ends of the upper moving plate and the lower moving plate are respectively and correspondingly fixed on the second transmission roller chains through end connector base bodies.
The shifting vehicle further comprises a microswitch for detecting the position of the end connector seat body, wherein the microswitch is arranged between the first transmission roller chain and the second transmission roller chain and is positioned on one side of the moving bed plate mechanism far away from the receiving and conveying side.
The shifting vehicle further comprises a microswitch for detecting the position of the guardrail, wherein the microswitch is arranged at the bottom of the frame and is positioned at the receiving and sending side of the moving bed plate mechanism.
The shifting vehicle is characterized in that a rubber tube is tightly sleeved outside the cloth rolling shaft, and the upper shifting cloth is wrapped on the peripheries of the upper shifting plate and the rubber tube.
The shifting vehicle is characterized in that longitudinal guide roll shafts are mounted on two longitudinal side edges of a longitudinal opening of the cloth rolling shaft frame, and small rollers are mounted on the guide roll shafts.
The shifting vehicle is characterized in that the front and rear longitudinal edge edges of the upper moving plate and the front and rear longitudinal edge edges of the lower moving plate are respectively provided with a longitudinal guide roller shaft, and small rollers are mounted on the guide roller shafts.
Compared with the prior art, the invention has the beneficial effects that:
the core of the invention is that the first chain wheel component and the ratchet wheel component are arranged to replace the original transmission mode of jointly matching the clutch gear, the long rack, the clutch and the clutch driving mechanism, so that the transmission structure of the moving bed plate mechanism is greatly simplified, the structure of the shift trolley is more compact, the transmission is smoother, meanwhile, the operation of the shift trolley is more humanized, and the position of a patient is corrected when necessary.
In addition, the first chain wheel component and the ratchet wheel component are further matched with the first chain wheel motor, so that the upper moving cloth can rotate independently, the position of a patient on the moving vehicle can be corrected when necessary, and even the periphery of the upper moving cloth can be coated with the disposable sanitary cloth.
Drawings
FIG. 1 is a schematic perspective view of a shift cart (moving bed plate mechanism in a forward-extending state) according to a preferred embodiment of the present invention;
FIG. 2 is a partial perspective view of another embodiment of the invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is an enlarged view of area B of FIG. 2;
FIG. 5 is a top view of the connection structure of the moving bed plate mechanism to the bed frame;
FIG. 6 is an enlarged view of area C of FIG. 5;
FIG. 7 is an enlarged view of area D of FIG. 5;
FIG. 8 is a schematic view of the cloth beam and the end fitting housing;
FIG. 9 is a schematic structural view of the end fitting housing and the up-down moving plate;
FIG. 10 is an enlarged view of area E of FIG. 9;
FIG. 11 is a bottom view of the coupling structure of the moving bed plate mechanism to the bed frame;
FIG. 12 is a schematic view of the ratchet assembly;
FIG. 13 is a schematic view of the operation of the shift cart according to the preferred embodiment of the present invention;
FIG. 14 is a schematic structural view of the shift cart in the initial state of the present invention;
in the figure: 100. a moving bed plate mechanism; 1. a cloth rolling shaft frame; 2. a cloth rolling shaft; 3. an end fitting housing; 4. moving the plate upwards; 5. moving the cloth upwards; 6. a lower moving plate; 7. lower moving cloth; 8. a first sprocket assembly; 81. a first link shaft; 82. a first outboard main sprocket; 83. a first slave sprocket; 84. a first drive roller chain; 85. a connecting assembly; 851. a cloth roller transmission chain wheel; 852. an idler pulley; 853. a fixing sheet; 86. a first sprocket motor; 9. a ratchet assembly; 91. a ratchet wheel; 92. a pawl; 93. a spring; 94. a cam block; 95. a ratchet motor; 96. a limiting trigger; 97. a microswitch; 98. a mounting seat; 981. a first mounting piece; 982. a second mounting piece; 99. a spring mount; 10. a connection tongue; 11. a moving plate driving mechanism; 111. a second link shaft; 112. a second main sprocket; 113. a second power take-off sprocket; 114. a moving plate motor; 115. a second sprocket assembly; 1151. a second outboard main sprocket; 1152. a second slave sprocket; 1153. a second drive roller chain; 12. a rubber tube; 13. a guide roller shaft; 14. a small roller; 15. a guide roll shaft; 200. a vehicle body; 21. a base; 22. a frame; 23. a lifting support; 24. a universal caster; 25. braking and pedaling; 26. a lifting motor; 27. a telescopic rod; 28. a guardrail; 300. an electronic controller; a. a transverse direction; b. a longitudinal direction.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
In this embodiment, which is one of the preferred embodiments of the present invention, as shown in fig. 1-14, a mobile cart comprises a cart body 200 having a lifting mechanism and casters, a moving bed plate mechanism 100 for laterally moving a patient; the moving bed plate mechanism is arranged on a frame 22 of the vehicle body; in this embodiment, the moving direction of the patient to be transported is the transverse direction, which is the direction a shown in fig. 1, by extending and retracting the moving bed plate mechanism back and forth; on the same horizontal plane, the direction perpendicular to the transverse moving direction is taken as the longitudinal direction, such as the direction b shown in fig. 1; FIG. 1 shows a moving bed plate mechanism installed on a vehicle body and extending outward for use in a transfer process of a shift vehicle; the moving bed plate mechanism extends forwards to be the front, and the moving bed plate mechanism retracts backwards to be the rear.
The vehicle body 200 includes a base 21, a frame 22, and a lifting bracket 23 connected between the base and the frame. The universal caster 24 is arranged below the base, and the brake pedal 25 is arranged on the guide caster and the universal caster at the rear side of the vehicle body, so that an operator can conveniently brake the transfer vehicle. The lifting bracket 23 is driven by a lifting motor 26 mounted at the bottom of the frame and a telescopic rod 27 connected between the lifting motor and the lifting bracket to complete the lifting action. The left and right ends of the frame are end frames, and the front and rear sides of the frame are provided with turnover guardrails 28. The rear side of the frame is also led with a lead, the tail end of the lead is connected with a handheld controller (not shown in the figure) and an electronic controller 300, the handheld controller is provided with a plurality of control buttons, and the electronic controller is internally provided with a relay, a single chip microcomputer and a relay control unit which are used for receiving detection signals of all the hardware such as motors, microswitches and electric push rods of lifting mechanisms on the shift car and controlling the operation of the hardware.
As shown in fig. 3-12, the moving bed plate mechanism 100 includes a cloth winding shaft frame 1, a cloth winding shaft 2, an end joint base body 3, an upper moving plate 4, an upper moving plate 5, a lower moving plate 6, a lower moving plate 7, a first sprocket assembly 8, and a ratchet assembly 9;
the cloth rolling shaft frame is longitudinally arranged, and the cloth rolling shaft is arranged in the cloth rolling shaft frame;
the end joint seat bodies are respectively and fixedly arranged at two ends of the cloth rolling shaft frame, two ends of the cloth rolling shaft are rotatably supported in the end joint seat bodies through bearings, and the end parts of the cloth rolling shaft respectively extend out of the end joint seat bodies;
one side of the upper moving plate is hinged on the end joint base body, and the upper moving cloth is wound on the peripheries of the upper moving plate and the cloth rolling shaft;
the lower moving plate is arranged below the upper moving plate, the cloth rolling shaft frame is provided with a longitudinal opening, the lower edge of the longitudinal opening extends forwards to form a connecting tongue piece 10, and the lower moving plate is fixedly connected to the connecting tongue piece;
the lower moving cloth is wound on the periphery of the lower moving plate; and the lower moving cloth positioned below the receiving and delivering side of the lower moving plate is fixed on the frame of the vehicle body.
The first chain wheel assembly 8 comprises a first connecting rod shaft 81 longitudinally arranged at the bottom of the frame of the vehicle body, a first outer side main chain wheel 82 sleeved on the first connecting rod shaft, first driven chain wheels 83 arranged at the front end and the rear end of the frame, and a first transmission roller chain 84 sleeved on the first outer side main chain wheel and the first driven chain wheels; the end of the cloth beam extending out of the end joint seat body is fixed on the first transmission roller chain through a connecting component 85; the connecting component 85 comprises a cloth rolling shaft transmission chain wheel 851, an idler wheel 852 and a fixing plate 853; the end part of the cloth rolling shaft is inserted into the cloth rolling shaft transmission chain wheel and is driven by the cloth rolling shaft transmission chain wheel to rotate; the first transmission roller chain is wound between the cloth rolling shaft transmission chain wheel and the idler wheel in an S shape; the cloth rolling shaft transmission chain wheel and the idler wheel are arranged on a fixing sheet, and the fixing sheet is fixed on the end joint base body;
as shown in fig. 12, the ratchet assembly 9 includes a ratchet 91, a pawl 92, a spring 93, a cam block 94 and a ratchet motor 95, the ratchet is sleeved on the first link shaft, the connecting end of the pawl is hinged on a mounting seat 98 on one side of the ratchet, and the holding end of the pawl is matched with the ratchet teeth of the ratchet; the spring is arranged on the outer side of the pawl; the cam block is fixed on a power output shaft of the ratchet motor and is positioned on the inner side of the pawl; the ratchet wheel assembly is used for driving the first connecting rod shaft to rotate or stop rotating.
The core of the invention is that the first chain wheel component and the ratchet wheel component are arranged to replace the original transmission mode of jointly matching the clutch gear, the long rack, the clutch and the clutch driving mechanism, so that the transmission structure of the moving bed plate mechanism is greatly simplified, the structure of the shift trolley is more compact, the transmission is smoother, meanwhile, the operation of the shift trolley is more humanized, and the position of a patient is corrected when necessary.
The patient receiving and sending functions of the shift trolley are two, namely the patient receiving function and the patient sending function, and the patient receiving refers to the fact that the patient is transferred into the shift trolley from a sickbed; the step of sending the patient refers to transferring the patient from the shifting trolley to a sickbed; whether the patient is received or sent, the patient needs to go through two actions, namely transversely extending the upper moving plate and the lower moving plate and transversely retracting the upper moving plate and the lower moving plate.
As a preferred embodiment, as shown in fig. 12, the ratchet assembly further comprises a limit trigger 96 and a microswitch 97; the two pawls are respectively and symmetrically arranged at the left side and the right side of the cam block; the two limit triggers are sleeved on a power output shaft of the ratchet motor and synchronously rotate with the cam block; the two microswitches are respectively and correspondingly arranged on the outer sides of the two pawls. According to the actual transfer requirement of the shifting vehicle, a limit trigger and a microswitch are arranged, so that the ratchet wheel assembly can timely control the first connecting rod shaft to rotate or stop rotating, namely, the cam block rotates under the driving of a ratchet wheel motor, and the limit trigger rotating synchronously with the cam block is made to touch or be far away from the microswitch, so that a pawl is clamped into or loosened from the ratchet wheel; when the pawl is clamped into the ratchet wheel, the first connecting rod shaft stops rotating, and when the pawl releases the ratchet wheel, the first connecting rod shaft rotates.
In the present embodiment, as shown in fig. 12, the ratchet assembly is mounted on a mounting block 98 by a bearing; the mounting base comprises a first mounting piece 981 and a second mounting piece 982 vertically connected to the bottom of the first mounting piece; the first mounting piece is provided with a notch for the first connecting shaft to pass through; the pawl is hinged on the first mounting plate; the ratchet wheel assembly further comprises a spring mounting seat 99 for mounting a spring, the spring mounting seat is mounted on the first mounting plate, one end of the spring abuts against the spring mounting seat, and the other end of the spring abuts against the outer side of the pawl; the micro switch is installed on the second installation sheet.
As a further preferred solution, as shown in fig. 11, the first chain wheel assembly further comprises a first chain wheel motor 86 for driving the first link shaft to rotate. The first chain wheel motor is designed to pull the patient to the middle part of the shift trolley without deviating to one side after the patient is transferred to the shift trolley.
In this embodiment, the upper moving plate and the lower moving plate are driven by a moving plate driving mechanism 11 to synchronously move forwards or backwards and transversely, and the moving plate driving mechanism includes a second connecting rod shaft 111 longitudinally arranged at the bottom of the vehicle frame of the vehicle body, a second main chain wheel 112 arranged in the middle of the second connecting rod shaft, a second power output chain wheel 113 in transmission connection with the second main chain wheel through a second roller chain (not shown), and a moving plate motor 114 sleeved on the second power output chain wheel; the two ends of the second connecting shaft are both provided with a second chain wheel assembly 115; each set of second sprocket assemblies includes a second outboard master sprocket 1151, a second slave sprocket 1152, a second drive roller chain 1153; the second outside main chain wheel is sleeved on the second connecting shaft, the second driven chain wheel is respectively installed at the front end and the rear end of the frame, second transmission roller chains are matched on the second outside main chain wheel and the second driven chain wheel, and two ends of the upper moving plate and the lower moving plate are respectively and correspondingly fixed on the second transmission roller chains through end connector base bodies.
As a further preferable aspect, the shift cart of the present invention further includes a microswitch 97 for detecting the position of the end joint block, which is provided between the first and second transmission roller chains and on the side of the moving bed plate mechanism away from the pickup side. When the moving bed plate mechanism is transversely retracted to the original state from the use state, the end connector base body moves to one side of the bed frame far away from the receiving side and touches the micro switch, which shows that the moving bed plate mechanism is transversely retracted to the original state without continuously moving, and therefore the moving plate motor is controlled to stop operating.
As a further preferable scheme, the shift trolley further comprises a microswitch 97 for detecting the position of the guardrail, wherein the microswitch is arranged at the bottom of the trolley frame and is positioned at the receiving side of the moving bed plate mechanism.
As a further preferable scheme, the fixing piece comprises a front piece and a rear piece, and the cloth rolling shaft transmission chain wheel and the idler wheel are arranged between the front piece and the rear piece; the rear piece is fixed on the end joint base body.
As a further preferable scheme, a rubber tube 12 is tightly sleeved outside the cloth winding shaft, and the upper moving plate and the rubber tube are wrapped by the upper moving cloth.
The invention relates to a shift trolley, wherein longitudinal guide roller shafts 13 are arranged on two longitudinal side edges of a longitudinal opening of a cloth rolling shaft frame, and small rollers 14 are arranged on the guide roller shafts, as shown in figure 10. The design of the guide roller shaft and the small idler wheels can reduce the resistance of the cloth rolling shaft frame under the condition of relative motion on the bed frame, so that the transverse movement of the whole flat movable bed plate is smoother.
In the shift cart according to the present invention, the front and rear longitudinal edges of the upper moving plate and the front and rear longitudinal edges of the lower moving plate are provided with longitudinal guide rollers 15, and the guide rollers are provided with small rollers 14, as shown in fig. 7. The design of the guide roll shaft and the small idler wheels can reduce the resistance of the movable cloth and the movable plate in relative motion, so that the transverse movement of the whole flat movable bed plate is smoother.
The working process of the shifting vehicle in the preferred embodiment of the invention is as follows:
as shown in fig. 13-14, the initial state of the mobile bed plate mechanism before the patient is delivered is that the mobile bed plate mechanism is parked on the frame of the cart body, and the right side of the mobile bed is an operating bed or a hospital bed;
(1) the process that the upper and lower moving plates extend out when a patient is connected is as follows: the ratchet wheel assembly is started through the handheld controller, so that the pawl clamps the ratchet wheel, namely the pawl and the ratchet wheel are in a meshed state, the first connecting rod shaft stops rotating, and the first outer side main chain wheel does not rotate; then, a moving plate motor of the moving plate driving mechanism is started to rotate in the forward direction through a handheld controller, the moving plate motor drives an end connector base body to move forward through a second power output chain wheel, a second main chain wheel, a second connecting rod shaft, a second outer side main chain wheel, a second driven chain wheel and a second transmission roller chain in sequence, the end connector base body drives the whole moving plate mechanism to move forward, meanwhile, the connecting component fixedly connected with the end connector base body moves forwards simultaneously, the first driven chain wheel, the cloth rolling shaft transmission chain wheel and the idler wheel on the first chain wheel component passively and synchronously rotate, at the moment, the cloth rolling shaft transmission chain wheel drives the cloth rolling shaft to synchronously rotate, the cloth rolling shaft drives the upper moving cloth to rotate, and the moving speed of the surface, in contact with the body of the patient, of the upper moving cloth is just the same as the moving speed of the upper moving plate moving forwards but opposite in direction, so that the part, in contact with the patient, of the upper moving cloth is kept relatively still with the body of the patient actually. Meanwhile, the lower moving plate moves forward, and the lower moving cloth moves forward by the lower moving plate, but since the lower moving cloth is fixed on the panel 11 of the frame 2 (the fixing mode of the lower moving cloth can refer to the "cloth pressing strip device 27" disclosed in patent No. 200610052776.3, although the fixing device is not limited to various structures and modes capable of realizing fixing in the prior art), the "X" in fig. 13-14 is represented as "cloth pressing strip device 27", and thus the surface contacting with the bed surface of the hospital bed is always kept relatively static with the bed surface. In addition, in the process, the contact surfaces of the upper moving cloth and the lower moving cloth are kept still relatively. At this point, the moving plate motor can be stopped through the handheld controller, so that the moving plate mechanism stops moving forwards.
(2) The process of retracting the upper and lower movable plates after receiving the patient: after the patient is loaded on the upper moving plate, a moving plate motor of the moving plate driving mechanism is started to rotate reversely through the handheld controller, the moving plate motor drives the end connector base to move backwards through a second power output chain wheel, a second main chain wheel, a second connecting rod shaft, a second outer side main chain wheel, a second driven chain wheel and a second transmission roller chain in sequence, and the end connector base drives the whole moving plate mechanism to move backwards; the ratchet wheel assembly is started through the handheld controller, so that the pawl is separated from the ratchet wheel, namely the pawl and the ratchet wheel are in a non-meshed state, the first chain wheel motor drives the first connecting rod shaft to rotate, the first outer side main chain wheel rotates, the first driven chain wheel and the first transmission roller chain rotate in sequence, at the moment, the cloth winding shaft transmission chain wheel on the first chain wheel assembly does not rotate, the cloth winding shaft does not rotate, the upper moving cloth on the cloth winding shaft does not rotate, and therefore the upper moving cloth still keeps relative rest relative to the body of a patient and simultaneously relative to the upper moving plate. The lower moving cloth is recovered under the action of the lower moving plate, so that the contact surfaces of the upper moving cloth and the lower moving cloth move relatively, but the surface of the lower moving cloth, which is in contact with the sickbed surface, is still kept relatively still with the sickbed surface. Eventually, the patient is completely transferred to the cart. And the patient body position can be adjusted independently after the movable plate is retracted to ensure that the receiving and delivering side guardrails are normally closed.
(3) The process of extending the upper and lower movable plates when a patient is sent out is as follows: the patient is transferred to the shifting trolley, namely the upper moving plate still loads the patient, and the moving bed driving mechanism drives the upper moving plate and the lower moving plate to move forwards and transversely; at the moment, a pawl of the ratchet wheel assembly and the ratchet wheel are in a non-meshed state, the first chain wheel motor drives the first connecting rod shaft to rotate, the first outer side main chain wheel rotates, the first driven chain wheel and the first transmission roller chain rotate in sequence, at the moment, the cloth rolling shaft transmission chain wheel on the first chain wheel assembly does not rotate, the cloth rolling shaft does not rotate, and the upper moving cloth on the cloth rolling shaft does not rotate; at the moment, the upper moving cloth, the upper moving plate, the lower moving plate and the patient are all relatively static, the lower moving cloth relatively moves relative to the lower moving plate and the upper moving cloth, but the part of the lower moving cloth, which is in contact with the sickbed/operating bed, is still relatively static with the sickbed/operating bed;
(4) when a patient is sent, the process of retracting the upper and lower moving plates is as follows: the ratchet wheel assembly is started through the handheld controller, so that the pawl clamps the ratchet wheel, namely the pawl and the ratchet wheel are in a meshed state, the first connecting rod shaft stops rotating, and the first outer side main chain wheel does not rotate; then, a moving plate motor of the moving plate driving mechanism is started to rotate reversely through a handheld controller, the moving plate motor drives an end connector base to move backwards through a second power output chain wheel, a second main chain wheel, a second connecting rod shaft, a second outer side main chain wheel, a second driven chain wheel and a second transmission roller chain in sequence, the end connector base drives the whole moving plate mechanism to move backwards, meanwhile, the connecting component fixedly connected with the end connector base body moves backwards at the same time, the first driven chain wheel, the cloth rolling shaft transmission chain wheel and the idler wheel on the first chain wheel component passively and synchronously rotate, at the moment, the cloth rolling shaft transmission chain wheel drives the cloth rolling shaft to synchronously rotate, the cloth rolling shaft drives the upper moving cloth to rotate, and the moving speed of the surface, contacted with the body of the patient, of the upper moving cloth is exactly the same as the moving speed of the upper moving plate moving forwards but in the opposite direction, so that the upper moving cloth is actually kept relatively still with the body of the patient. The part of the upper moving cloth contacted with the patient is actually kept relatively still with the body of the patient; the lower moving cloth moves relative to the lower moving plate, the part of the lower moving cloth, which is in contact with the sickbed/operating bed, is kept relatively still with the bed surface, and the binding surfaces of the upper moving cloth and the lower moving cloth are also kept relatively still, so that in the whole moving process of the upper moving plate and the lower moving plate, except the relative movement of the moving cloth and the corresponding moving plate, no other relative movement exists, and one-time transfer is completed.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A shifting vehicle comprises a vehicle body with a lifting mechanism and universal castors and a moving bed plate mechanism for transversely moving and receiving patients; the moving bed plate mechanism is arranged on a frame of the vehicle body; the moving bed plate mechanism is characterized by comprising a cloth rolling shaft frame, a cloth rolling shaft, an end joint base body, an upper moving plate, upper moving cloth, lower moving plate, lower moving cloth, a first chain wheel assembly and a ratchet wheel assembly;
the cloth rolling shaft frame is longitudinally arranged, and the cloth rolling shaft is arranged in the cloth rolling shaft frame;
the end joint seat bodies are respectively and fixedly arranged at two ends of the cloth rolling shaft frame, two ends of the cloth rolling shaft are rotatably supported in the end joint seat bodies through bearings, and the end parts of the cloth rolling shaft respectively extend out of the end joint seat bodies;
one side of the upper moving plate is hinged on the end joint base body, and the upper moving cloth is wound on the peripheries of the upper moving plate and the cloth rolling shaft;
the cloth rolling shaft frame is provided with a longitudinal opening, the lower edge of the longitudinal opening is forwards extended with a connecting tongue piece, and the lower moving plate is fixedly connected to the connecting tongue piece;
the lower moving cloth is wound on the periphery of the lower moving plate, and the lower moving cloth positioned below the receiving side of the lower moving plate is fixed on a frame of the vehicle body;
the first chain wheel assembly comprises a first connecting rod shaft longitudinally arranged at the bottom of a frame of the vehicle body, a first outer side main chain wheel sleeved on the first connecting rod shaft, first driven chain wheels arranged at the front end and the rear end of the frame, and a first transmission roller chain sleeved on the first outer side main chain wheel and the first driven chain wheel; the end part of the cloth rolling shaft extending out of the end joint seat body is fixed on the first transmission roller chain through a connecting component; the connecting assembly comprises a cloth rolling shaft transmission chain wheel, an idler wheel and a fixing piece; the end part of the cloth rolling shaft is inserted into the cloth rolling shaft transmission chain wheel and is driven by the cloth rolling shaft transmission chain wheel to rotate; the first transmission roller chain is wound between the cloth rolling shaft transmission chain wheel and the idler wheel in an S shape; the cloth rolling shaft transmission chain wheel and the idler wheel are arranged on a fixing sheet, and the fixing sheet is fixed on the end joint base body;
the ratchet wheel assembly comprises a ratchet wheel, a pawl, a spring, a cam block and a ratchet wheel motor, the ratchet wheel is sleeved on the first connecting rod shaft, the connecting end of the pawl is hinged to one side of the ratchet wheel, and the clamping end of the pawl is matched with ratchet wheel teeth of the ratchet wheel; the spring is arranged on the outer side of the pawl; the cam block is fixed on a power output shaft of the ratchet motor and is positioned on the inner side of the pawl.
2. The shifter car of claim 1, wherein the ratchet assembly further comprises a limit trigger and a microswitch; the two pawls are respectively and symmetrically arranged at the left side and the right side of the cam block; the two limit triggers are sleeved on a power output shaft of the ratchet motor and synchronously rotate with the cam block; the two microswitches are respectively and correspondingly arranged on the outer sides of the two pawls.
3. The shifter car of claim 2, wherein the ratchet assembly is mounted on the mount by a bearing; the mounting seat comprises a first mounting piece and a second mounting piece vertically connected to the bottom of the first mounting piece; the first mounting piece is provided with a notch for the first connecting shaft to pass through; the pawl is hinged on the first mounting plate; the ratchet wheel assembly further comprises a spring mounting seat for mounting a spring, the spring mounting seat is mounted on the first mounting plate, one end of the spring abuts against the spring mounting seat, and the other end of the spring abuts against the outer side of the pawl; the micro switch is installed on the second installation sheet.
4. The cart of claim 1 wherein the first sprocket assembly further comprises a first sprocket motor for driving the first link shaft.
5. The shifting vehicle of claim 1, wherein the upper and lower moving plates are driven by a moving plate driving mechanism to synchronously move forwards or backwards and transversely, the moving plate driving mechanism comprises a second connecting rod shaft longitudinally arranged at the bottom of the vehicle frame of the vehicle body, a second main chain wheel arranged in the middle of the second connecting rod shaft, a second power output chain wheel in transmission connection with the second main chain wheel through a second roller chain, and a moving plate motor sleeved on the second power output chain wheel; the two ends of the second connecting shaft are provided with second chain wheel assemblies; each set of second sprocket assemblies comprises a second outer main sprocket, a second driven sprocket and a second transmission roller chain; the second outside main chain wheel is sleeved on the second connecting shaft, the second driven chain wheel is respectively installed at the front end and the rear end of the frame, second transmission roller chains are matched on the second outside main chain wheel and the second driven chain wheel, and two ends of the upper moving plate and the lower moving plate are respectively and correspondingly fixed on the second transmission roller chains through end connector base bodies.
6. The cart of claim 5 further comprising a microswitch for detecting the position of the end fitting housing, the microswitch being disposed between the first and second drive roller chains and on a side of the moving bed plate mechanism remote from the pickup side.
7. The cart of claim 1 further comprising a microswitch for detecting the position of the guardrail, the microswitch being positioned at the bottom of the frame and on the pick-up side of the moving bed plate mechanism.
8. The shift trolley according to any one of claims 1-7, wherein a rubber tube is tightly sleeved outside the cloth winding shaft, and the upper moving cloth is wrapped on the periphery of the upper moving plate and the rubber tube.
9. The transfer cart of any of claims 1-7 wherein longitudinal guide rollers are mounted on longitudinal edges of the longitudinal opening of the frame, and wherein small rollers are mounted on the guide rollers.
10. The cart of any of claims 1-7 wherein the front and rear longitudinal edges of the upper plate and the front and rear longitudinal edges of the lower plate are provided with longitudinal guide rollers having small rollers mounted thereon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010037878.8A CN111166568B (en) | 2020-01-14 | 2020-01-14 | Shifting vehicle |
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| CN202010037878.8A CN111166568B (en) | 2020-01-14 | 2020-01-14 | Shifting vehicle |
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| CN111166568B CN111166568B (en) | 2024-10-11 |
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| CN112569065A (en) * | 2021-01-04 | 2021-03-30 | 江苏省肿瘤防治研究所（江苏省肿瘤医院） | Anesthesia department is with man-machine interaction device that can alleviate patient's mood based on thing networking |
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| WO2024128896A1 (en) * | 2022-12-14 | 2024-06-20 | Beltran Ramirez Jesus Raul | Bed for keeping a person on life support |
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| CN111166568B (en) | 2024-10-11 |
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