CN111345946A - Power mechanism for patient transfer bed - Google Patents
Power mechanism for patient transfer bed Download PDFInfo
- Publication number
- CN111345946A CN111345946A CN202010335677.6A CN202010335677A CN111345946A CN 111345946 A CN111345946 A CN 111345946A CN 202010335677 A CN202010335677 A CN 202010335677A CN 111345946 A CN111345946 A CN 111345946A
- Authority
- CN
- China
- Prior art keywords
- gear
- gears
- gearbox
- transmission
- movable beam
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D11/00—Clutches in which the members have interengaging parts
- F16D11/16—Clutches in which the members have interengaging parts with clutching members movable otherwise than only axially
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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
-
- 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
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1025—Lateral movement of patients, e.g. horizontal transfer
-
- 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
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1025—Lateral movement of patients, e.g. horizontal transfer
- A61G7/1032—Endless belts
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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
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1073—Parts, details or accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Nursing (AREA)
- Mechanical Engineering (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The power mechanism for the patient transfer bed is characterized by comprising a movable beam, a gearbox, a transmission shaft, a gear box and racks, wherein the gearbox is fixed on the movable beam and provided with a motor, the transmission shaft is connected to the power output end of the gearbox, the gear box is fixed at two ends of the movable beam and provided with gears, the racks are arranged at two ends of a bedstead, the gears are rotationally connected in the gearbox, the transmission shaft drives the gears in the gearbox to rotate, the gears in the gearbox driven at two ends of the transmission shaft are respectively meshed with the racks at two ends of the bedstead, the movable bed with a transmission belt is fixedly connected with at least one of the movable beam and the gearbox, and a transmission gear on a clutch arranged on a roller. Compared with the prior art, the invention has the advantages of simple structure, low manufacturing cost and convenient disassembly and assembly.
Description
Technical Field
The present invention relates to a medical device.
Background
As disclosed in the patent application CN201911062014.5, the power mechanism of the movable bed for transferring medical patients comprises a motor disposed on the bed frame, a lead screw rotatably disposed on the bed frame and driven by the motor through a transmission mechanism (a transmission wheel/transmission belt type transmission mechanism or a chain wheel/chain type transmission mechanism), and a nut screwed on the lead screw, wherein the nut is connected with the movable bed frame. The transmission is realized by adopting the screw rod and the nut, although the transmission precision is high, the cost is correspondingly high, the disassembly and the assembly are inconvenient, in addition, the movement of the movable bed does not need high transmission precision, in addition, the power mechanism and other transmission mechanisms of the movable bed (such as a transmission mechanism for moving a belt on the movable bed) are independent and are not connected with each other, and various power transmission mechanisms are independently arranged, so that the structure of the product is complicated and the cost is high.
Disclosure of Invention
The invention aims to provide a power mechanism for a patient transfer bed, which has low manufacturing cost, convenient assembly and disassembly and smooth operation.
The invention is realized by the following steps that the movable beam, the gearbox with the motor fixed on the movable beam, the transmission shaft connected to the power output end of the gearbox, the gear box with the gears fixed at the two ends of the movable beam and the racks arranged at the two ends of the bedstead are arranged, the gears are rotationally connected in the gear box, the transmission shaft drives the gears in the gear box to rotate, the gears in the gear box driven by the two ends of the transmission shaft are respectively meshed with the racks at the two ends of the bedstead, a frame formed by connecting the movable beam, the gearbox and the gear box is fixedly connected with the movable bed with a transmission belt, and a transmission gear on a clutch arranged on a roller for driving the transmission belt to move is meshed.
When the patient moving bed is used, the motor drives the transmission shaft to rotate through the gearbox, the transmission shaft drives the gears in the gear boxes on two sides to synchronously rotate, the rotating gears roll back and forth along the racks, the movable bed fixedly connected with the movable beam and the gear boxes is driven to move back and forth through the gearbox, the movable beam and the gear boxes which are connected into the frame, the gears drive the rolling shafts to rotate through the transmission gears through the clutches in the moving bed moving back and forth process, the rolling shafts drive the transmission belts on the movable bed to move, and patients are conveyed to a sickbed from the movable bed or conveyed to the movable bed from the sickbed. The motor directly drives the gear to rotate, so that a frame formed by connecting the movable beam, the gearbox and the gear box moves back and forth along the rack without a transmission mechanism of a screw rod and a nut in the prior art, thereby simplifying the structure, reducing the manufacturing cost and facilitating the disassembly and assembly; the movable beam is adopted, and the two ends of the movable beam are fixedly connected with the gear boxes, so that the gravity of the movable bed cannot fall on the transmission shaft, the transmission shaft is prevented from being influenced by the gravity of the movable bed, and meanwhile, the manufacturing cost of the transmission shaft is reduced (because only transmission is adopted, enough rigidity is not needed to bear the gravity of the movable bed)
Compared with the prior art, the invention has the advantages of simple structure, low manufacturing cost, convenient assembly and disassembly and smooth operation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a structure of a moving bed using the present invention;
FIG. 3 is a schematic structural view of the transmission;
fig. 4 is a partially enlarged view of a point of fig. 1A.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples:
as shown in fig. 1 and 2, the present embodiment includes a movable beam 1, a transmission case 3 with a motor 2 fixed on the movable beam 1, a transmission shaft 4 connected to the power output end of the transmission case 3, the movable bed comprises gear boxes 6 with gears 5 and fixed at two ends of a movable beam 1, racks 8 arranged at two ends of a bed frame 7, wherein the gears 5 are rotatably connected in the gear boxes 6 (the shafts connected with the gears 5 are connected on bearings on the gear boxes 6), a transmission shaft 4 drives the gears 5 in the gear boxes 6 to rotate, the gears 5 in the gear boxes 6 driven at two ends of the transmission shaft 4 are respectively arranged on the racks 8 at two ends of the bed frame 7 and are meshed with the racks, a frame formed by connecting the movable beam, a gearbox and the gear boxes is fixedly connected with a movable bed frame 11 of a movable bed 10 with a transmission belt 9, and a transmission gear 14 on a clutch 13 arranged on a roller 12 driving the transmission belt 9 to move is meshed with the gears 5 on the gear boxes 6.
Another preferred embodiment is: as shown in fig. 3, the gear box 6 includes a box body 6a, a narrow gear set 6b rotatably disposed in the box body 6a and composed of a plurality of gears meshed with each other and disposed up and down, and a gear 5 located above the narrow gear set 6b and meshed with the uppermost narrow gear, wherein the gear 5 is wider than the narrow gear set 6b and the narrow gear set 6b is located on one side of the gear 5, and a rack 8 penetrates through the box body 6a and is located on the other side below the gear 5. The narrow gear set 6b which is arranged up and down and is formed by a plurality of narrow gears which are mutually meshed is adopted, the power transmission distance is prolonged, the power arranged below the movable bed 10 can be smoothly transmitted to the transmission gear 14 of the clutch 13 at the side surface of the movable bed 10 which is higher, so that the transmission belt 9 can be smoothly driven to move, and simultaneously, the gravity center of the movable bed 10 relative to the rack 8 is also lowered, so that the movable bed 10 can stably move. A rolling limit roller 15 is provided in the case 6a below the rack bar 8 to position the gear box 6 on the rack bar 8 and smoothly move forward and backward along the rack bar 8, thereby preventing the movable bed 10 fixedly connected to the frame constituted by the movable beam 1, the gear box 6, and the gear box 6 from falling off the bed frame 7.
Another preferred embodiment is: as shown in fig. 1, the movable beam 1 is two pipes fixed to two ends of the transmission case 3 (fixed by flanges at two ends of the pipes), and the transmission shafts 4 at the power output ends of two sides of the transmission case 3 penetrate through the pipes 1.
As shown in fig. 1 and 2, another preferred embodiment is: the movable bed 10 includes a movable frame 11, rollers 12 provided on both front and rear sides of the movable frame 11, and a conveyor belt 9 (belt or cloth belt) wound around the rollers 12 on both left and right sides, as shown in fig. 1 and 4, and a transmission gear 14 constituting a clutch 13 is connected to an end of one of the rollers 12.
As shown in fig. 1 and 4, another preferred embodiment is: the transmission gear 14 forming the clutch 13 is connected to the end of the roller 12 through a bearing, a non-circular shaft 12a (such as a square shaft) is arranged on the outer side of the end of the roller 12, a rotating piece 16 is arranged on the non-circular shaft in a sliding connection mode, external teeth 17 are arranged on the outer side face of the transmission gear 14, internal teeth 18 are arranged on the inner side face of the rotating piece 16 corresponding to the external teeth arranged on the outer side face of the transmission gear 14, a circular groove 16a is arranged on the outer surface of the rotating piece 16, a shifting fork 20 with a shifting lever 19 is arranged in the groove 16a, the middle of the shifting lever 19 is hinged to the outer side of the gear box 6, the free end of the shifting lever 19 is driven by a push rod 21a of an electric push.
Claims (3)
1. The power mechanism for the patient transfer bed is characterized by comprising a movable beam, a gearbox with a motor, a transmission shaft, a gear box with gears and racks, wherein the gearbox is fixed on the movable beam, the transmission shaft is connected to the power output end of the gearbox, the gear box with the gears is fixed at two ends of the movable beam, the racks are arranged at two ends of a bedstead, the gears are rotationally connected in the gear box, the transmission shaft drives the gears in the gear box to rotate, the gears in the gear box driven at two ends of the transmission shaft are respectively meshed with the racks at two ends of the bedstead, a frame formed by connecting the movable beam, the gearbox and the gear box is fixedly connected with the movable bed with a transmission belt, and a transmission gear on a clutch.
2. The power mechanism for patient transfer bed as claimed in claim 1, wherein the gear box comprises a box body, a narrow gear set rotatably disposed in the box body and composed of a plurality of narrow gears disposed up and down and engaged with each other, and a gear positioned on the narrow gear set and engaged with the uppermost narrow gear, the gear is wider than the narrow gear set and the narrow gear set is positioned on one side of the gear, and the rack passes through the box body and is positioned on the other side below the gear.
3. The power mechanism for patient transfer bed according to claim 1 or 2, wherein the movable beam is two tubes fixed at both sides of the gear box, and the transmission shafts of the power output ends at both sides of the gear box pass through the tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010335677.6A CN111345946A (en) | 2020-04-25 | 2020-04-25 | Power mechanism for patient transfer bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010335677.6A CN111345946A (en) | 2020-04-25 | 2020-04-25 | Power mechanism for patient transfer bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111345946A true CN111345946A (en) | 2020-06-30 |
Family
ID=71189820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010335677.6A Pending CN111345946A (en) | 2020-04-25 | 2020-04-25 | Power mechanism for patient transfer bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111345946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458692A (en) * | 2022-01-07 | 2022-05-10 | 佛山晓微企业管理咨询有限公司 | Improved structure of power mechanism for patient transfer bed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344006Y (en) * | 1998-06-18 | 1999-10-20 | 耿宏伟 | Medical patient's carrier vehicle |
| CN1813648A (en) * | 2006-03-07 | 2006-08-09 | 耿宏伟 | Operating table capable of automatically fetching patient |
| CN201290840Y (en) * | 2008-09-11 | 2009-08-19 | 路卫 | Patient operation full-automatic transfer device |
| CN107361927A (en) * | 2017-07-29 | 2017-11-21 | 叶玲 | A kind of medical transfer bed |
| CN218589262U (en) * | 2020-04-25 | 2023-03-10 | 佛山晓微企业管理咨询有限公司 | Power mechanism for patient transfer bed |
-
2020
- 2020-04-25 CN CN202010335677.6A patent/CN111345946A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344006Y (en) * | 1998-06-18 | 1999-10-20 | 耿宏伟 | Medical patient's carrier vehicle |
| CN1813648A (en) * | 2006-03-07 | 2006-08-09 | 耿宏伟 | Operating table capable of automatically fetching patient |
| CN201290840Y (en) * | 2008-09-11 | 2009-08-19 | 路卫 | Patient operation full-automatic transfer device |
| CN107361927A (en) * | 2017-07-29 | 2017-11-21 | 叶玲 | A kind of medical transfer bed |
| CN218589262U (en) * | 2020-04-25 | 2023-03-10 | 佛山晓微企业管理咨询有限公司 | Power mechanism for patient transfer bed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458692A (en) * | 2022-01-07 | 2022-05-10 | 佛山晓微企业管理咨询有限公司 | Improved structure of power mechanism for patient transfer bed |
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