Transfer flatcar
By setting up an electric telescopic rod and microcontroller module on the transfer flat truck, the control bed plate is inclined to form a slope, which solves the work burden of medical staff during the transfer of patients and achieves a labor-saving transfer effect.
Patent Information
- Application Number
- CN202421401818.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The prior art requires medical staff to spend a lot of effort and increase the work burden when transferring patients from a transfer truck to a hospital bed or operating bed, especially those with larger weight.
A transfer flat car is designed, equipped with first and second electric telescopic rods, single-chip modules and buttons. By controlling the telescopic rods, the inclination of the bed plate is achieved, forming a slope, and reducing dragging force.
Through the control of the electric telescopic rod, the bed plate is inclined to form a slope, which reduces the work burden of medical staff and improves the labor-saving and safety of patient transfer.
Smart Images
Figure CN223081861U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly relates to a transfer stretcher. Background Art
[0002] At present, for some patients, such as: trauma patients, critically ill patients, comatose patients, or patients who have not yet recovered from postoperative anesthesia, etc., they need to be transferred to the bedside by a transfer vehicle and then carried from the transfer vehicle to the hospital bed; there are also some patients who need emergency surgery due to trauma or sudden changes in the condition, and they need to be transferred by a transfer vehicle and carried onto the operating table. In order to save effort when carrying the patient to the hospital bed or the operating table, a transfer board is often placed under the patient, and then the patient is carried to the hospital bed or the operating table through the transfer board.
[0003] However, when using the transfer board to transfer the patient from the transfer vehicle to the operating table or the hospital bed, if the patient is overweight, it will require a great deal of effort from the medical staff to drag the transfer board, increasing the workload of the medical staff.
[0004] In view of the possible problems described above, the utility model provides a transfer stretcher that is more labor-saving for transfer, so as to reduce the workload of the medical staff. Summary of the Utility Model
[0005] The technical problem to be solved by the utility model is to provide a transfer stretcher that is more labor-saving when transferring from the transfer stretcher to the hospital bed or the operating table, so as to reduce the workload of the medical staff.
[0006] To solve the above technical problem, the utility model adopts the following technical solutions:
[0007] A transfer stretcher, comprising an upper bed frame, a lower bed frame, connecting rods, a bed board and rollers; wherein, both the upper bed frame and the lower bed frame are square hollow frames, the upper bed frame is arranged above the lower bed frame and is connected by multiple connecting rods; there are four rollers, which are respectively arranged at the four corners of the lower bed frame; the distinguishing feature is that the transfer stretcher further comprises a support plate, a cross bar, a fixing plate, a first electric telescopic rod, a second electric telescopic rod, a single-chip microcomputer module, a first telescopic rod button and a second telescopic rod button; wherein, there are two cross bars, which are arranged at intervals along the width direction of the upper bed frame in the middle of the upper bed frame, the support plate is arranged between the two cross bars, and the two side walls of the support plate are respectively hinged to the rod bodies of the two cross bars; the bed board is arranged above the support plate, and the surface of the bed board is higher than the bed surfaces of the operating bed and the hospital bed; the fixing plate is laid in the middle of the lower bed frame; the first electric telescopic rod and the second electric telescopic rod are respectively vertically arranged at both ends below the support plate, and one end of the first electric telescopic rod and the second electric telescopic rod is respectively hinged to the lower plate surface of the support plate, and the other end is respectively hinged to the plate surface of the fixing plate; the first telescopic rod button and the second telescopic rod button are respectively electrically connected to the input end of the single-chip microcomputer module, the input ends of the first electric telescopic rod and the second electric telescopic rod are respectively electrically connected to the output end of the single-chip microcomputer module, the first telescopic rod button is used to control the first electric telescopic rod to extend and the second electric telescopic rod to shorten; the second telescopic rod button is used to control the first electric telescopic rod to shorten and the second electric telescopic rod to extend.
[0008] The beneficial effects of the present utility model are:
[0009] For a transfer stretcher provided by the present utility model, when a patient needs to be transferred from the transfer stretcher to an operating bed or a hospital bed, if the operating bed or the hospital bed is close to the first electric telescopic rod, then press the second telescopic rod button, so that the first electric telescopic rod shortens and the second electric telescopic rod extends. At this time, the bed board tilts towards the operating bed or the hospital bed and forms a certain slope, and the patient can slide down along the slope by dragging across the bed board, which plays a role in saving effort and reducing the workload of the staff; similarly, if the operating bed or the hospital bed is close to the second electric telescopic rod, then press the first telescopic rod button, so that the bed board tilts towards the second electric telescopic rod. Description of the Drawings
[0010] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.
[0011] Figure 2 is a front view of an embodiment of the present utility model.
[0012] Figure 3 is a schematic structural diagram of the present utility model with the bed board omitted.
[0013] Figure 4 is a schematic structural diagram of the present utility model in the use state.
[0014] Figure 5 It is the principle block diagram of the embodiment of the present utility model.
[0015] Figure 6 It is the circuit diagram of the single-chip microcomputer module of the embodiment of the present utility model.
[0016] Figure 7 It is the circuit diagram of the first electric telescopic rod and the second electric telescopic rod of the embodiment of the present utility model.
[0017] Figure 8 It is the circuit diagram of the stepping motor of the embodiment of the present utility model.
[0018] The reference numerals in the figure are: 1, upper bed frame; 2, lower bed frame; 3, connecting rod; 4, bed board; 5, roller; 6, support plate; 7, cross bar; 8, fixing plate; 9, first electric telescopic rod; 10, second electric telescopic rod; 11, single-chip microcomputer module; 12, first telescopic rod button; 13, second telescopic rod button; 14, power supply module; 15, slide rail; 16, stepping motor; 17, gear; 18, rack; 19, motor button; 20, placement groove; 21, operation box. Specific embodiments
[0019] The present utility model will be described below with reference to the accompanying drawings. The specific embodiments described herein are only for explaining and understanding the present utility model, and are not used to limit the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope of the present utility model.
[0020] As Figures 1 to 8 shown, the transfer flat car of this embodiment includes an upper bed frame 1, a lower bed frame 2, a connecting rod 3, a bed board 4 and rollers 5.
[0021] Among them, both the upper bed frame 1 and the lower bed frame 2 are square hollow frames. The upper bed frame 1 is arranged above the lower bed frame 2 and is connected by multiple connecting rods 3.
[0022] Four rollers 5 are provided, which are respectively arranged at the four corners of the lower bed frame 2. The rollers 5 are universal wheels with a braking function.
[0023] On the basis of the above structure, the transfer vehicle of this embodiment further includes a support plate 6, a cross bar 7, a fixing plate 8, a first electric telescopic rod 9, a second electric telescopic rod 10, a single-chip microcomputer module 11, a first telescopic rod button 12 and a second telescopic rod button 13.
[0024] Among them, two cross bars 7 are provided, which are arranged at intervals in the middle of the upper bed frame 1 along the width direction of the upper bed frame 1. The support plate 6 is arranged between the two cross bars 7, and the two side walls of the support plate 6 are respectively hinged to the rod bodies of the two cross bars 7.
[0025] The bed board 4 is arranged above the support board 6, and the surface of the bed board 4 is higher than the bed surfaces of the operating bed and the hospital bed, forming a height difference, which facilitates tilting the bed board 4 later.
[0026] The fixing plate 8 is laid in the middle of the lower bed frame 2.
[0027] The first electric telescopic rod 9 and the second electric telescopic rod 10 are respectively arranged vertically at both ends below the support board 6, and one ends of the first electric telescopic rod 9 and the second electric telescopic rod 10 are both hinged to the lower surface of the support board 6, and the other ends are both hinged to the surface of the fixing plate 8.
[0028] The first telescopic rod button 12 and the second telescopic rod button 13 are respectively electrically connected to the input end of the single-chip microcomputer module 11, and the input ends of the first electric telescopic rod 9 and the second electric telescopic rod 10 are respectively electrically connected to the output end of the single-chip microcomputer module 11. The first telescopic rod button 12 is used to control the first electric telescopic rod 9 to extend and the second electric telescopic rod 10 to shorten; the second telescopic rod button 13 is used to control the first electric telescopic rod 9 to shorten and the second electric telescopic rod 10 to extend.
[0029] An operation box 21 is arranged at the end of the upper bed frame 1 and a power supply module 14 is arranged on the fixing plate 8. The single-chip microcomputer module 11 is arranged in the operation box 21. The first telescopic rod button 12 and the second telescopic rod button 13 are arranged on the surface of the operation box 21. The power supply module 14 is used to provide the working voltage.
[0030] In this embodiment, the single-chip microcomputer module 11 adopts a single-chip microcomputer module with an AT89C51 single-chip microcomputer as the core. Since the electric telescopic rod is generally driven by a motor, in the circuit, the capital letter M is used to represent it. Among them, the first electric telescopic rod 9 is represented by "M1", the second electric telescopic rod 10 is represented by "M2", and drive modules are arranged between the first electric telescopic rod 9 and the second electric telescopic rod 10 and the single-chip microcomputer module 11.
[0031] The drive module includes a first drive circuit and a second drive circuit. The first drive circuit includes a first relay and a first triode. The base of the first triode is electrically connected to the output terminal of the single-chip microcomputer module 11, the collector is electrically connected to the negative pole of the coil of the first relay, and the emitter is electrically connected to the GND terminal; the positive pole of the coil of the first relay is electrically connected to the positive pole of the power supply module 14; the normally open terminal of the first relay is electrically connected to the positive pole of the power supply module 14, the normally closed terminal is electrically connected to the negative pole of the power supply module 14, and the common terminal is electrically connected to the positive pole of the power supply terminal of the first electric push rod 9. The second drive circuit includes a second relay and a second triode. Among them, the base of the second triode is electrically connected to the output terminal of the single-chip microcomputer module 11, the collector is electrically connected to the negative pole of the coil of the second relay, and the emitter is electrically connected to the GND terminal; the positive pole of the coil of the second relay is electrically connected to the positive pole of the power supply module 14; the normally open terminal of the second relay is electrically connected to the negative pole of the power supply module 14, the normally closed terminal is electrically connected to the positive pole of the power supply module 14, and the common terminal is electrically connected to the negative pole of the power supply terminal of the first electric push rod 9.
[0032] The working principle is as follows: When the first triode conducts, the coil of the first relay is energized, the normally open terminal of the first relay conducts, while the second triode does not conduct, the coil of the second relay is not energized, and the normally closed terminal of the second relay conducts. The current flows from the positive pole of the power supply module 14, through the normally open terminal of the first relay to the positive pole of the motor, then from the negative pole of the motor to the normally closed terminal of the second relay, and finally to the negative pole of the power supply module 14, so that the motor conducts forward, and it is defined that the first electric push rod 9 extends at this time; on the contrary, when the second triode conducts, the coil of the second relay is energized, the normally open terminal of the second relay conducts, while the first triode does not conduct, the coil of the first relay is not energized, and the normally closed terminal of the first relay conducts. The current flows from the positive pole of the power supply module 14, through the normally open terminal of the second relay to the negative pole of the motor, then from the positive pole of the motor to the normally closed terminal of the first relay, and finally to the positive pole of the power supply module 14, so that the motor conducts reversely, and it is defined that the first electric push rod 9 shortens at this time.
[0033] The circuit and principle of the drive module between the second electric telescopic rod 10 and the single-chip microcomputer module 11 are the same as those of the drive module between the first electric telescopic rod 9 and the single-chip microcomputer module 11. Among them, the first triode and the second triode corresponding to the first electric push rod M1 are represented by Q1 and Q2 respectively, and the first relay and the second relay corresponding to the first electric push rod M1 are represented by KA1 and KA2 respectively; the first triode and the second triode corresponding to the second electric push rod M2 are represented by Q3 and Q4 respectively, and the first relay and the second relay corresponding to the second electric push rod M2 are represented by KA3 and KA4 respectively.
[0034] In the circuit, the first telescopic rod button 12 is represented by the button K1, and the second telescopic rod button 13 is represented by K2. Combined with Figures 6 to 8, when the first telescopic rod button 12 is pressed, the triode Q1 and the triode Q4 are turned on, and the triode Q2 and the triode Q3 are not turned on. At this time, the relay KA1 and the relay KA4 are conductive, and the relay KA2 and the relay KA3 are not conductive, so that the motor in the first electric telescopic rod 9 is turned on in the forward direction and its telescopic end extends, and the motor in the second electric telescopic rod 10 is turned on in the reverse direction and its telescopic end shortens. The extension of the first electric telescopic rod 9 and the shortening of the second electric telescopic rod 10 will cause the support plate 6 to tilt in the direction of the second electric telescopic rod 10, making the bed board 4 tilt in the direction of the second electric telescopic rod 10; similarly, when the second telescopic rod button 13 is pressed, the triode Q2 and the triode Q3 are turned on, and the triode Q1 and the triode Q4 are not turned on. At this time, the relay KA2 and the relay KA3 are conductive, and the relay KA1 and the relay KA4 are not conductive, so that the motor in the first electric telescopic rod 9 is turned on in the reverse direction and its telescopic end shortens, and the motor in the second electric telescopic rod 10 is turned on in the forward direction and its telescopic end extends. The shortening of the first electric telescopic rod 9 and the extension of the second electric telescopic rod 10 will cause the support plate 6 to tilt in the direction of the first electric telescopic rod 9, making the bed board 4 tilt in the direction of the first electric telescopic rod 9.
[0035] Therefore, when a patient needs to be transferred from a transport stretcher to a hospital bed or an operating table, if the hospital bed or the operating table is close to the first electric telescopic rod 9, then press the second telescopic rod button 13 to shorten the first electric telescopic rod 9 and extend the second electric telescopic rod 10. At this time, the bed board 4 tilts in the direction of the hospital bed or the operating table and forms a certain slope. Dragging the transfer board 4 can slide down along the slope, which plays a role in saving effort and reducing the workload of the staff; similarly, if the hospital bed or the operating table is close to the second electric telescopic rod 10, then press the first telescopic rod button 11 to make the bed board 4 tilt in the direction of the second electric telescopic rod 10.
[0036] In addition, a slide rail 15 is provided between the bed board 4 and the support plate 6. The slide rail 15 is arranged perpendicular to the long side of the upper bed frame 1, and the bed board 4 can move along the slide rail 15 to both sides of the upper bed frame 1. When the transfer vehicle moves to the side of the hospital bed, if there is a gap between the side of the transfer vehicle and the side of the hospital bed, the bed board 4 can be slid so that the side of the bed board 4 is closer to the side of the hospital bed, thereby reducing the gap and improving safety, and then tilting the bed board 4.
[0037] In order to make it easier to move the bed board 4, the transporter further includes a stepper motor 16, a gear 17, a rack 18 and a motor button 19; a placement groove 20 is provided in the middle of the support plate 6, the stepper motor 16 and the gear 17 are arranged in the placement groove 20, and the gear 17 is installed on the rotating shaft of the stepper motor 16; the rack 18 is arranged on the lower plate surface of the bed board 4, and its length direction is perpendicular to the long side of the bed board 4. The rack 18 is meshed with the gear 17, and the rotation of the gear 17 can drive the rack 18 to move upward along both sides of the bed frame 1; the motor button 19 is electrically connected to the input end of the single-chip microcomputer module 11, and the output end of the single-chip microcomputer module 11 is electrically connected to the input end of the stepper motor 16. The motor button 19 is used to control the forward and reverse rotation of the stepper motor 16. In this embodiment, two motor buttons 19 are provided, both of which are arranged on the surface of the operation box 21 and are respectively used to control the forward and reverse rotation of the stepper motor 16. In the circuit, they are represented by keys K3 and K4 respectively; the stepper motor 16 is represented by "M3" in the circuit. A ULN2803 driver chip is arranged between the stepper motor 16 and the single-chip microcomputer module 11 to drive the stepper motor 16 to work.
[0038] A guardrail is provided on the side of the transfer flatbed. When in use, the guardrail can be rotated upward to block both sides of the bed board 4, playing a protective role. When not in use, the guardrail is rotated downward to facilitate the transfer of patients. The function of this guardrail is prior art and will not be elaborated here.
Claims
1. A transfer stretcher, comprising an upper bed frame (1), a lower bed frame (2), a connecting rod (3), a bed board (4) and rollers (5); wherein, The upper bed frame (1) and the lower bed frame (2) are both square hollow frames. The upper bed frame (1) is arranged above the lower bed frame (2) and is connected by multiple connecting rods (3). Four rollers (5) are provided, which are respectively arranged at the four corners of the lower bed frame (2). It is characterized in that: it further includes a support plate (6), a cross bar (7), a fixing plate (8), a first electric telescopic rod (9), a second electric telescopic rod (10), a single-chip microcomputer module (11), a first telescopic rod button (12) and a second telescopic rod button (13); wherein, Two cross bars (7) are provided, which are arranged at intervals along the width direction of the upper bed frame (1) in the middle of the upper bed frame (1). The support plate (6) is arranged between the two cross bars (7). The two side walls of the support plate (6) are respectively hinged to the rod bodies of the two cross bars (7). The bed board (4) is arranged above the support plate (6), and the surface of the bed board (4) is higher than the bed surfaces of the operating bed and the hospital bed. The fixing plate (8) is laid in the middle of the lower bed frame (2). The first electric telescopic rod (9) and the second electric telescopic rod (10) are respectively arranged vertically at both ends below the support plate (6). One end of the first electric telescopic rod (9) and the second electric telescopic rod (10) is respectively hinged to the lower surface of the support plate (6), and the other end is respectively hinged to the surface of the fixing plate (8). The first telescopic rod button (12) and the second telescopic rod button (13) are respectively electrically connected to the input end of the single-chip microcomputer module (11). The input ends of the first electric telescopic rod (9) and the second electric telescopic rod (10) are respectively electrically connected to the output end of the single-chip microcomputer module (11). The first telescopic rod button (12) is used to control the first electric telescopic rod (9) to extend and the second electric telescopic rod (10) to shorten; the second telescopic rod button (13) is used to control the first electric telescopic rod (9) to shorten and the second electric telescopic rod (10) to extend.
2. The transfer stretcher according to claim 1, characterized in that: A slide rail (15) is arranged between the bed board (4) and the support plate (6); the slide rail (15) is arranged perpendicular to the long side of the upper bed frame (1), and the bed board (4) can move along the slide rail (15) to both sides of the upper bed frame (1).
3. The transfer stretcher according to claim 2, wherein: It further includes a stepping motor (16), a gear (17), a rack (18) and a motor button (19); a placement groove (20) is arranged in the middle of the support plate (6). The stepping motor (16) and the gear (17) are arranged in the placement groove (20), and the gear (17) is installed on the rotating shaft of the stepping motor (16); the rack (18) is arranged on the lower surface of the bed board (4), and its length direction is perpendicular to the long side of the bed board (4). The rack (18) is meshed and connected with the gear (17), and the rotation of the gear (17) can drive the rack (18) to move to both sides of the upper bed frame (1); the motor button (19) is electrically connected to the input end of the single-chip microcomputer module (11), and the output end of the single-chip microcomputer module (11) is electrically connected to the input end of the stepping motor (16). The motor button (19) is used to control the forward and reverse rotation of the stepping motor (16).
4. The transfer stretcher according to claim 3, wherein: It further includes an operation box (21) arranged at the end of the upper bed frame (1) and a power supply module (14) arranged on the fixing plate (8). The single-chip microcomputer module (11) is arranged inside the operation box (21), and the first telescopic rod button (12), the second telescopic rod button (13) and the motor button (19) are arranged on the surface of the operation box (21); the power supply module (14) is used to provide the working voltage.