Electric shifting machine
By using a lifting motor, drive gear set, and winding shaft structure, combined with a power failure brake and lithium battery, the electric transfer machine achieves stable lifting and wall-crossing transfer, solving the problems of single function, complex operation, and safety hazards in the existing technology, and improving the safety and flexibility of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI MEDDO MEDICAL DEVICE
- Filing Date
- 2026-03-20
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electric transfer machines have limited functionality, complex structure, complicated operation, and large space requirements. They cannot be used flexibly in indoor or outdoor scenarios and pose safety hazards in the event of power failure.
It adopts a lifting motor, drive gear set and belt shaft structure, combined with power failure brake, position sensing component and lithium battery to achieve stable lifting and wall transfer. The guide wheel ensures the stability of the sling and supports indoor and outdoor use.
It improves the safety and flexibility of the equipment, reduces operating costs, simplifies the operation process, and ensures stable operation in different environments.
Smart Images
Figure CN122056749A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of transfer machine technology, and more particularly to an electric transfer machine. Background Technology
[0002] Electric patient transfer machines are devices that help people with limited mobility or patients move around safely and flexibly, avoiding any aggravation of the patient's condition during the transfer.
[0003] Currently, the electric patient transfer machines on the market have limited functions, complex structures, and require medical staff to work long hours and operate them in a complicated manner.
[0004] A search revealed Patent 1: An electric patient transfer machine (CN201811610616.5), comprising a base connected to a leg-spreading mechanism and a vertical lifting mechanism. Universal casters are provided on the base and the leg-spreading mechanism. The vertical lifting mechanism is also connected to a hanging mechanism and includes an operating handle. The electric patient transfer machine further includes a control system for controlling the movements of the leg-spreading mechanism and the vertical lifting mechanism. The leg-spreading mechanism is used to open or close the legs of the electric patient transfer machine, and the vertical lifting mechanism is used to raise and lower the hanging mechanism, which is used to fix the patient. In this invention, the core component for achieving the lifting action is located inside the column, which improves safety during operation and extends the equipment's lifespan. In the event of a power failure, an emergency lowering mechanism can be used to manually lower the patient to ensure their safety. During lifting, the patient can rotate 360° freely, ensuring a comfortable lifting position. While the device allows for movement of the patient to any location, it requires space.
[0005] A search revealed Patent 2: A Multifunctional Electric Transfer Machine (CN202010180339.X), comprising a guide rail and a transfer machine body. The transfer machine body slides along the guide rail and includes a machine support, a lifting mechanism, and a lateral movement mechanism. The lifting mechanism includes a lifting motor, a lifting motor shaft, a lifting motor drive gear, a winding drum gear, a winding shaft, a guide wheel, and a nylon belt. The lateral movement mechanism includes a lateral movement motor, a lateral movement motor shaft, a lateral movement motor drive gear, a drive wheel, a first driven wheel, a second driven wheel, a first roller shaft, and a second roller shaft. The lateral movement motor drives the lateral movement motor drive gear to rotate, thereby rotating the first driven wheel and the drive wheel. The drive wheel and the second driven wheel slide along the guide rail. This multifunctional electric transfer machine significantly reduces the workload of medical staff assisting patients in movement, improves the efficiency of patient transfer, and features a simple structure, convenient operation, and high safety and reliability. While the above structure solves the problem of hospital space utilization, if patients need to move to the outside, the ceiling track needs to be connected to the interior. This means that the "through-wall" exit needs to be through, but most interior designs do not allow for through-wall designs. As a result, the equipment in Patent 2 can only be used in designated indoor locations. Summary of the Invention
[0006] To address the aforementioned technical problems, the purpose of this invention is to provide an electric transfer machine.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: An electric transfer machine includes a transfer machine housing. A first support plate and a second support plate are connected within the transfer machine housing. The first and second support plates are parallel and spaced apart, dividing the inner cavity of the transfer machine housing into a first installation chamber, a second installation chamber, and a third installation chamber. A lifting motor is connected to the first support plate located in the first installation chamber, and a drive gear set is connected to the second support plate located in the third installation chamber. The drive shaft of the lifting motor is connected to a transmission shaft. A winding shaft passes between the first and second support plates located in the second installation chamber. The transmission shaft is synchronously connected to the winding shaft via the drive gear set. The winding shaft is connected to the upper end of a sling and wound around the winding shaft. The lower end of the sling passes through the transfer machine housing and is connected to a third hook. An upper connecting plate is connected above the space between the first and second support plates, and a first hook is connected to the upper connecting plate.
[0008] Preferably, in the electric transfer machine, a power failure brake is connected to the drive shaft.
[0009] Preferably, in the electric transfer machine, the drive gear set includes a first drive gear, a second drive gear, and a third drive gear. The first drive gear is synchronously connected to the transmission shaft, and the third drive gear is synchronously connected to the winding shaft. The second drive gear is connected between the first drive gear and the third drive gear through a rotating shaft, and the first drive gear meshes with the second drive gear and the third drive gear.
[0010] Preferably, in the electric transfer machine, a position sensing component is connected to the first support plate that is synchronously connected to the winding shaft.
[0011] Preferably, in the electric transfer machine, the position sensing component includes a first synchronous pulley, a second synchronous pulley, a synchronous belt, and a potentiometer. The first synchronous pulley is synchronously mounted on the belt shaft. A potentiometer bracket is connected to the first support plate. A potentiometer is connected to the potentiometer bracket. The second synchronous pulley is mounted on the potentiometer's potentiometer shaft. A synchronous belt is mounted between the second synchronous pulley and the first synchronous pulley.
[0012] Preferably, in the electric transfer machine, a battery fixing plate is connected to the second support plate via a support column, and a lithium battery is connected to the battery fixing plate.
[0013] Preferably, in the electric transfer machine, a mainboard mounting plate is connected to the first support plate, and a control circuit board is connected to the mainboard mounting plate.
[0014] Preferably, in the electric transfer machine, a lower connecting plate is connected between the first support plate and the second support plate, the lower connecting plate has a sling outlet for sling entry and exit, and a second hook is connected to the lower connecting plate.
[0015] Preferably, in the electric transfer machine, a guide shaft is connected between the first support plate and the second support plate located above the lower connecting plate and at the sling outlet, and a guide wheel for guiding the sling is fitted on the guide shaft.
[0016] Preferably, in the electric transfer machine, the first hook and the third hook connected by the sling are arranged on the same axis.
[0017] By means of the above-described solution, the present invention has at least the following advantages: This invention enables stable raising and lowering of the patient, preventing instability during raising and lowering and improving safety. It also allows for the transfer of the device inside and outside the device, making it applicable to more scenarios without requiring additional equipment replacement, thus reducing operating costs.
[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a structural schematic diagram of the present invention. Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 yes Figure 2 Another structural diagram from a different perspective; Figure 4 yes Figure 2 A schematic diagram of the structure of the lower side. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0023] Example like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an electric patient transfer machine is used to raise or lower a patient for their convenience. It includes a transfer machine housing 1, within which a first support plate 2 and a second support plate 3 are connected. The first and second support plates 2 and 3 are parallel and spaced apart, dividing the inner cavity of the transfer machine housing 1 into a first mounting chamber 4, a second mounting chamber 5, and a third mounting chamber 6. A lifting motor 7 is connected to the first support plate 2 located in the first mounting chamber 4, and a drive gear set 8 is connected to the second support plate 3 located in the third mounting chamber 6. The lifting motor 7 drives... The shaft is connected to the drive shaft 9. A winding shaft 10 is passed between the first support plate 2 and the second support plate 3 located in the second installation chamber 5. The drive shaft 9 is synchronously connected to the winding shaft 10 through the drive gear set 8. The winding shaft 10 is connected to the upper end of the sling 11 and is wound around the winding shaft 10. The lower end of the sling 11 passes through the transfer machine housing 1 and is connected to the third hook 12. An upper connecting plate 13 is connected above the first support plate 2 and the second support plate 3. A first hook 14 is connected to the upper connecting plate 13. The first hook 14 and the third hook 12 connected by the sling are arranged on the same axis.
[0024] Among them, the sling 11 and the third hook 12 can form the main unit sling hook, which will be referred to as the main unit sling hook below.
[0025] In this embodiment, a power failure brake 15 is connected to the drive shaft 9. This brake prevents the patient from falling due to power failure by providing emergency braking. Simultaneously, the power failure brake can brake the sling in an emergency. In any state, a short press of the "STOP" button forces the main unit to stop; a long press of the "STOP" button activates functions such as descent in extremely low battery condition, sling upper and lower limit protection, motor over-temperature protection, motor over-current protection, and battery undervoltage detection. The lifting motor is equipped with a soft start and stop function, improving the precision of fine-tuning operations and user experience, while also extending the lifespan of the mechanical structure.
[0026] In this embodiment, a battery fixing plate 17 is connected to the second support plate 3 via support columns. A lithium battery 18 is connected to the battery fixing plate 17. The lithium battery 18 is a rechargeable lithium battery, enabling the electric transfer machine to operate independently without constant charging, facilitating its application in various environments. Simultaneously, a mainboard mounting plate 19 is connected to the first support plate 2, and a control circuit board 20 is connected to the mainboard mounting plate 19. This circuit board can also supply power to the control circuit board, lifting motor, and potentiometer, and control the lifting motor and potentiometer through the control circuit board.
[0027] Example 1 Based on the embodiment, the drive gear set 8 includes a first drive gear 81, a second drive gear 82, and a third drive gear 83. The first drive gear 81 is synchronously connected to the transmission shaft 9, and the third drive gear 83 is synchronously connected to the winding shaft 10. The second drive gear 82 is connected between the first drive gear 81 and the third drive gear 83 via a rotating shaft. The first drive gear 81 meshes with the second drive gear 82 and the third drive gear 83. The gear ratios of the first drive gear 81, the second drive gear 82, and the third drive gear 83 are different, and are set by those skilled in the art to ensure that the sling can be raised and lowered freely.
[0028] Example 2 Based on Embodiment 1 and Embodiment 1, a position sensing component 16 is connected to the first support plate 2, which is synchronously connected to the winding shaft 10. The position sensing component 16 includes a first synchronous pulley 161, a second synchronous pulley 162, a synchronous belt 163, and a potentiometer 164. The first synchronous pulley 161 is synchronously mounted on the winding shaft 10. A potentiometer bracket 165 is connected to the first support plate 2, and the potentiometer 164 is connected to the potentiometer bracket 165. The second synchronous pulley 162 is mounted on the potentiometer shaft of the potentiometer 164, and the synchronous belt 163 is fitted between the second synchronous pulley 162 and the first synchronous pulley 161. The position sensing component 16 allows for immediate detection of the sling's rotation, and the potentiometer 164 confirms the sling's position, facilitating operation.
[0029] Example 3 In this embodiment, a lower connecting plate 21 connects the first support plate 2 and the second support plate 3. The lower connecting plate 21 has a sling outlet 22 for the sling to enter and exit. A second sling buckle 23 (main unit sling ring) is connected to the lower connecting plate 21. A guide shaft connects the first support plate 2 and the second support plate 3, located above the lower connecting plate and at the sling outlet 22. A guide wheel 24 for guiding the sling is fitted onto the guide shaft. The guide wheel 24 and the sling outlet ensure that the sling and the first sling buckle are always on the same axis, preventing instability during patient ascent or descent and ensuring patient safety.
[0030] Table 1 shows the data for this electric transfer machine. The working principle of this invention is as follows: In specific work, 1. In actual patient lifting and lowering operation, the first hook is connected to the hanging ring on the moving guide wheel on the ceiling track and slides in the ceiling track with the moving guide wheel. The patient is wrapped by the main unit's sling hook and the hanging bag. Then, the lifting and lowering of the main unit's sling hook is achieved by the lifting motor, drive gear set and winding shaft. Then, the operator uses the controller (remote control) to lift and lower the patient. The movement of this device has been mentioned in the background art and is in the prior art, so it will not be repeated here.
[0031] II. Over-the-wall transfer operation of the electric transfer machine: During the transfer through the wall, the main hoist hook is connected to the lifting ring on the moving guide wheel in the ceiling track, and then connected to the second lifting buckle through the transition hoist hook on the other side. After the connection is completed, the electric transfer machine descends, so that the transition hoist hook acts as the main pulling force on the electric transfer machine. After the force of the main hoist hook is transferred to the transition hoist hook, the third lifting buckle on the main hoist hook can be removed from the lifting ring on the moving guide wheel by disassembling the telescopic rod. At this time, the electric transfer machine enters the other side through the transition hoist hook, thus realizing the "wall transfer" operation.
[0032] The aforementioned "crossing the wall" refers to two unconnected sky rails, but their positions are adjacent.
[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0034] In the description of this application, it should be noted that the terms "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0035] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or vertical, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. An electric transfer machine, characterized in that: The device includes a transfer machine housing (1), within which a first support plate (2) and a second support plate (3) are connected. The first support plate (2) and the second support plate (3) are parallel and spaced apart. The first support plate (2) and the second support plate (3) divide the inner cavity of the transfer machine housing (1) into a first installation chamber (4), a second installation chamber (5), and a third installation chamber (6). A lifting motor (7) is connected to the first support plate (2) located in the first installation chamber (4), and a drive gear set (8) is connected to the second support plate (3) located in the third installation chamber (6). The lifting motor (7) drives... The shaft is connected to the drive shaft (9). A winding shaft (10) is connected between the first support plate (2) and the second support plate (3) located in the second installation chamber (5). The drive shaft (9) is connected to the winding shaft (10) through the drive gear set (8). The winding shaft (10) is connected to the upper end of the sling (11) and wound around the winding shaft (10). The lower end of the sling (11) passes through the transfer machine housing (1) and is connected to the third hook (12). An upper connecting plate (13) is connected above the first support plate (2) and the second support plate (3). A first hook (14) is connected on the upper connecting plate (13).
2. The electric transfer machine according to claim 1, characterized in that: A power failure brake (15) is connected to the drive shaft (9).
3. The electric transfer machine according to claim 1, characterized in that: The drive gear set (8) includes a first drive gear (81), a second drive gear (82) and a third drive gear (83). The first drive gear (81) is connected to the transmission shaft (9), and the third drive gear (83) is connected to the winding shaft (10). The second drive gear (82) is connected between the first drive gear (81) and the third drive gear (83) through a rotating shaft. The first drive gear (81) meshes with the third drive gear (83) through the second drive gear (82).
4. The electric transfer machine according to claim 1, characterized in that: A position sensing component (16) is connected to the first support plate (2) which is synchronously connected to the winding shaft (10).
5. An electric transfer machine according to claim 4, characterized in that: The position sensing component (16) includes a first synchronous pulley (161), a second synchronous pulley (162), a synchronous belt (163), and a potentiometer (164). The first synchronous pulley (161) is synchronously mounted on the winding shaft (10). A potentiometer bracket (165) is connected to the first support plate (2). A potentiometer (164) is connected to the potentiometer bracket (165). The second synchronous pulley (162) is mounted on the potentiometer shaft of the potentiometer (164). A synchronous belt (163) is mounted between the second synchronous pulley (162) and the first synchronous pulley (161).
6. An electric transfer machine according to claim 1, characterized in that: A battery fixing plate (17) is connected to the second support plate (3) via a support column, and a lithium battery (18) is connected to the battery fixing plate (17).
7. An electric transfer machine according to claim 1, characterized in that: A motherboard mounting plate (19) is connected to the first support plate (2), and a control circuit board (20) is connected to the motherboard mounting plate (19).
8. An electric transfer machine according to claim 1, characterized in that: A lower connecting plate (21) is connected between the first support plate (2) and the second support plate (3). The lower connecting plate (21) has a sling outlet (22) for sling entry and exit, and a second hook (23) is connected to the lower connecting plate (21).
9. An electric transfer machine according to claim 8, characterized in that: A guide shaft is connected between the first support plate (2) and the second support plate (3) located above the lower connecting plate and at the sling outlet (22), and a guide wheel (24) for guiding the sling is fitted on the guide shaft.
10. An electric transfer machine according to claim 1, characterized in that: The first hook (14) and the third hook (12) connected by the sling are arranged on the same axis.