Bed frame with manual and automatic lifting functions

Abstract

The utility model discloses a bed frame with manual and automatic lifting functions simultaneously, which comprises at least two vertically arranged lead screws, the lead screws are connected with rotating parts used for driving the at least two lead screws to rotate, the lead screws are sleeved and in threaded connection with nuts, and the nuts on the at least two lead screws are jointly and fixedly provided with a movable bed frame. According to the ambulance, the severely wounded person conveying capacity of the ambulance can be effectively improved, and the ambulance can better adapt to first-aid treatment tasks of large accidents; and when power is not supplied in an emergency or a motor is damaged, the movable bed frame can be lifted so as to adapt to the emergency.

Description

Technical Field

[0001] The utility model relates to the technical field of bed frames, in particular to a bed frame with both manual and automatic lifting functions. Background Art

[0002] Vehicle rescue is an important measure for emergency treatment at present. The casualties caused by major accidents such as traffic accidents, fires, earthquakes, etc. are large in number and most of them are serious. In the process of emergency medical treatment, ambulance transportation is particularly important.

[0003] Currently, common ambulances are usually equipped with rescue equipment such as stretchers, portable ventilators and pacemakers and defibrillators. The stretcher is more than 170 cm long and more than 50 cm wide. The stretcher is parked inside the ambulance for use by injured people who need to be transported in a lying position.

[0004] Regarding the aforementioned related technologies, due to the limited space inside an ambulance, which can only accommodate one recumbent berth, each ambulance can only transport one recumbent patient at most. In large-scale accidents with a large number of critically injured patients, it is often difficult to deploy more ambulances in a timely manner, resulting in some critically injured patients being unable to be transported for treatment in a timely manner, delaying optimal treatment or surgery, and causing serious casualties. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a bed frame which effectively improves the transporting capacity of seriously injured persons by ambulances and has manual and automatic lifting functions.

[0006] In order to solve the above technical problems, the present invention provides a bed frame with both manual and automatic lifting functions, which adopts the following technical solutions:

[0007] A bed frame with both manual and automatic lifting functions includes at least two vertically arranged screw rods, each screw rod is connected to a rotating part for driving each screw rod to rotate, and a nut is sleeved and threadedly connected to the screw rod. The nuts on at least two of the screw rods are jointly fixed to a movable bed frame.

[0008] By adopting the above technical solution, at least two screw rods are driven to rotate by the rotating member, so that the nuts on the at least two screw rods move up and down simultaneously, thereby driving the movable bed frame to move up and down. Through the above structure, a fixed bed frame or a pushable bed frame can be set below the movable bed frame. When transporting a wounded person, the movable bed frame is lowered, the wounded person is placed on the movable bed frame for bandaging and other basic first aid operations, and then the movable bed frame is moved up, thereby reducing the movement range of the wounded person and slowing down the deterioration of the wounded person's injury; after the movable bed frame is raised, another wounded person can be transferred to the fixed bed frame or the pushable bed frame below, so that two seriously injured people can be transported and treated at one time within the limited space inside the ambulance, thereby effectively improving the ambulance's capacity to transport seriously injured people.

[0009] Optionally, the rotating member includes at least two screw lifts, at least two of the screws are respectively fixed to the worm gears of the at least two screw lifts, and the worms of the at least two screw lifts are connected to a power device.

[0010] By adopting the above technical solution, the worm gear of the screw lift is driven to rotate by the power device, so as to drive the screw to rotate.

[0011] Optionally, the screw lift is a double-worm screw lift, the worm of each screw lift and the worm of an adjacent screw lift are connected to each other through a transmission rod, and the worm of one of the screw lifts is connected to a power device.

[0012] By adopting the above technical solution, through the connection between the worms of the double-worm screw lift, only one power device is required to synchronously drive at least two screws to rotate synchronously, which can save equipment costs and energy consumption, and better ensure the synchronization rate of the rotation of at least two screws, thereby improving the stability of the movable bed frame.

[0013] Optionally, the power device is a motor, and the output shaft of the power device is fixedly arranged on the worm of one of the screw elevators.

[0014] By adopting the above technical solution and driven by a motor, the lifting and lowering of the movable bed frame can be made relatively smoother.

[0015] Optionally, the power device is a manual winch, and the power device is fixedly arranged on the worm of one of the screw elevators.

[0016] By adopting the above technical solution, the worm is driven by a manual winch to rotate, which can be more energy-efficient and can drive the movable bed frame to rise and fall even without power supply, so as to better adapt to emergencies.

[0017] Optionally, the power device includes a motor and a manual winch, the output shaft of the motor is fixed to the worm of one of the screw lifts, and the manual winch is fixed to the worm of the other screw lift.

[0018] By adopting the above technical solution, a motor and a manual winch are set at the same time. When there is power supply, the motor drives the screw rod to rotate, so that the movable bed frame can be raised and lowered smoothly. In the event of an emergency when there is no power supply or the motor is damaged, the manual winch can be rotated to raise and lower the movable bed frame to better adapt to emergencies.

[0019] Optionally, the screw rod outer sleeve is provided with a protective cover, the protective cover is provided with a movable opening, the movable opening is extended along the axis of the screw rod, the nut is fixed with a connecting plate, the connecting plate is passed through the movable opening, and the movable bed frame is fixedly connected to the connecting plate.

[0020] By adopting the above technical solution, the protective cover can be dustproof, so as to better prevent dust and impurities from entering the connection between the screw rod and the nut, which may cause the movable bed frame to become stuck or even fail when being raised or lowered.

[0021] Optionally, a bearing is sleeved on the top of the screw rod and threadedly connected, and the bearing is fixedly connected to a fixing seat.

[0022] By adopting the above technical solution, the fixing seat is used to be fixedly installed on the body structure of the ambulance, and the bearing makes the screw rod stably connected to the fixing seat, while making the rotation of the screw rod more stable, so as to make the load on the movable bed frame more stable and ensure safety during the transportation process.

[0023] Optionally, a reinforcement plate is fixedly connected between the movable bed frame and the nut.

[0024] By adopting the above technical solution, the reinforcing plate can improve the connection strength between the movable bed frame and the nut, making the movable bed frame safer for transporting seriously injured patients.

[0025] In summary, the present invention has at least one of the following beneficial technical effects:

[0026] 1. Through the above structure, one injured person can be transferred to the movable bed frame, and then the other injured person can be transferred to the fixed bed frame or the push bed frame below. In this way, two seriously injured patients can be transported and treated at once within the limited space of the ambulance. This effectively improves the ambulance's ability to transport seriously injured patients, making it better suited to emergency treatment tasks in large-scale accidents.

[0027] 2. By connecting the worms of the double-worm screw lift, only one power device is required to drive at least two screws to rotate synchronously, which can save equipment costs and energy consumption, and better ensure the synchronization rate of the rotation of at least two screws, thereby improving the stability of the movable bed frame.

[0028] 3. A motor and a manual winch are set at the same time. When there is power supply, the motor drives the screw to rotate, so that the movable bed frame can be raised and lowered smoothly. When there is no power supply or the motor is damaged in an emergency, the manual winch can be rotated to raise and lower the movable bed frame to better adapt to the emergency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of the present utility model.

[0030] Figure 2 It is a structural schematic diagram of the screw rod, transfer member, power device and movable bed frame in the utility model.

[0031] Explanation of the accompanying symbols: 1. Power unit; 11. Motor; 12. Manual winch; 2. Rotating part; 21. Screw lift; 3. Screw; 4. Nut; 41. Connecting plate; 5. Protective cover; 51. Movable opening; 6. Movable bed frame; 7. Bearing; 8. Fixed seat; 9. Reinforcement plate; 10. Transmission rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-2 The utility model is described in further detail.

[0033] The embodiment of the utility model discloses a bed frame with both manual and automatic lifting functions. Figure 1 and Figure 2 The bed frame with both manual and automatic lifting functions includes two screws 3 and a transfer unit. The transfer unit includes two screw lifts 21. The two screws 3 are respectively fixedly connected to the worm gears of the two screw lifts 21, and the two screws 3 are both in a vertical state. The worms of the two screw lifts 21 are both connected to a power device 1 for driving the worms of the screw lifts 21 to rotate. In other embodiments of the present application, the number of screws 3 can be three, four, or more, and the number of screw lifts 21 corresponds to the number of screws 3.

[0034] Reference Figure 1 and Figure 2 The tops of the two screw rods 3 are sleeved and threaded with bearings 7, which are fixedly connected to fixing bases 8. The fixing bases 8 are used to be fixedly mounted on the body structure of the ambulance. The bearings 7 ensure that the screw rods 3 are stably connected to the fixing bases 8, and at the same time, the rotation of the screw rods 3 is more stable, thereby making the load on the movable bed frame 6 more stable and ensuring safety during transportation.

[0035] Reference Figure 1 and Figure 2 Each screw rod 3 is sleeved and threadedly connected with a nut 4, and the nuts 4 on the two screw rods 3 are jointly fixed with a movable bed frame 6, which is horizontally arranged.

[0036] The two screw rods 3 are driven to rotate by the screw rod lift 21, so that the nut 4 on the screw rod 3 moves up and down, thereby driving the movable bed frame 6 to move up and down. Through the above structure, a fixed bed frame or a pushable bed frame can be set below the movable bed frame 6. When transporting the wounded, the movable bed frame 6 is lowered, the wounded is placed on the movable bed frame 6, and after performing basic rescue operations such as bandaging, it is moved up, thereby reducing the movement range of the wounded and slowing down the deterioration of the wounded's injuries; after the movable bed frame 6 is raised, another wounded can be transferred to the fixed bed frame or pushable bed frame below, so that two seriously injured patients can be transported and treated at a time within the limited space inside the ambulance, thereby effectively improving the ambulance's ability to transport seriously injured patients.

[0037] Reference Figure 1 and Figure 2 To reduce the equipment cost and energy consumption required to drive the two screw jacks 21, both screw jacks 21 are twin worm screw jacks. In this application, both twin worm screw jacks are model M-3210-1A-U-2L, manufactured by Wenzhou Yexin Transmission Machinery Technology Co., Ltd. The axes of the worms of the two screw jacks 21 are colinear and connected to each other via a transmission rod 10. The worm of one of the screw jacks 21 is connected to a power unit 1.

[0038] By connecting the worms of the double-worm screw elevator, only one power device 1 is required to synchronously drive at least two screws 3 to rotate synchronously, which can save equipment costs and energy consumption, and better ensure the synchronization rate of the rotation of at least two screws 3, thereby improving the stability of the lifting and lowering of the movable bed frame 6.

[0039] Reference Figure 1 and Figure 2 To more stably raise and lower the movable bed frame 6, the power unit 1 includes a motor 11 and a manual winch 12. The output shaft of the motor 11 is fixedly connected to a reducer. The output end of the reducer is fixedly connected to the worm of one of the screw jacks 21. The output end of the reducer and the worm of the screw jack 21 are arranged coaxially. The center of the manual winch 12 is fixedly connected to the worm of the other screw jack 21. The manual winch 12 and the worm of the screw jack 21 are arranged coaxially.

[0040] A motor 11 and a manual winch 12 are provided at the same time. When there is power supply, the motor 11 drives the screw rod 3 to rotate, so that the movable bed frame 6 can be raised and lowered smoothly. When there is no power supply or the motor 11 is damaged in an emergency, the manual winch 12 can be rotated to raise and lower the movable bed frame 6 to better adapt to the emergency.

[0041] Reference Figure 1 and Figure 2 In order to avoid jamming or even failure of the movable bed frame 6 when it is raised or lowered, the two screw rods 3 are both provided with protective covers 5. The screw rods 3 are passed through the top wall of the protective cover 5, and the bearings 7 and the fixing seats 8 are located above the protective cover 5. The side walls on the same side of the two protective covers 5 are provided with movable openings 51, and the movable openings 51 are extended along the length direction of the screw rods 3. The nut 4 is fixedly connected to the connecting plate 41, which is vertically arranged and passes through and slides on the movable opening 51. The two ends of the movable bed frame 6 are respectively fixedly connected with reinforcing plates 9, and the reinforcing plates 9 are perpendicular to the movable bed frame 6. The two reinforcing plates 9 are respectively fixedly connected to the two connecting plates 41.

[0042] The protective cover 5 provides dust protection, preventing dust and impurities from entering the connection between the screw rod 3 and the nut 4, which could cause the movable bed frame 6 to become stuck or even fail during lifting. Furthermore, the reinforcing plate 9 enhances the connection strength between the movable bed frame 6 and the nut 4, making the movable bed frame 6 safer for transporting critically ill patients.

[0043] The implementation principle of the bed frame with both manual and automatic lifting functions in the embodiment of the present invention is as follows: the two screw rods 3 are driven to rotate by the screw rod lifter 21, so that the nuts 4 on the screw rods 3 move up and down, thereby driving the movable bed frame 6 to move up and down. Through the above structure, a fixed bed frame or a push bed frame can be set below the movable bed frame 6. When transporting a wounded person, the movable bed frame 6 is lowered, and the wounded person is placed on the movable bed frame 6 for basic rescue operations such as bandaging, and then moved up, thereby reducing the movement range of the wounded person and slowing down the deterioration of the wounded person's injury; after the movable bed frame 6 is raised, another wounded person can be transferred to the fixed bed frame or push bed frame below, so that two seriously injured people can be transported and treated at one time within the limited space inside the ambulance, thereby effectively improving the ambulance's capacity to transport seriously injured people.

[0044] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bed frame with both manual and automatic lifting functions, characterized by: The invention comprises at least two vertically arranged screw rods (3), wherein the screw rods (3) are connected to a rotating member (2) for driving each screw rod (3) to rotate, and a nut (4) is sleeved on and threadedly connected to the screw rods (3), and the nuts (4) on at least two of the screw rods (3) are jointly fixedly mounted on a movable bed frame (6).

2. The bed frame with both manual and automatic lifting functions according to claim 1, characterized in that: The rotating member (2) includes at least two screw elevators (21), at least two screws (3) are respectively fixed to the worm wheels of the at least two screw elevators (21), and the worms of the at least two screw elevators (21) are both connected to a power device (1).

3. The bed frame with both manual and automatic lifting functions according to claim 2, characterized in that: The screw elevator (21) is a double-worm screw elevator, the worm of each screw elevator (21) and the worm of the adjacent screw elevator (21) are connected to each other through a transmission rod (10), and the worm of one of the screw elevators (21) is connected to the power device (1).

4. The bed frame with both manual and automatic lifting functions according to claim 3, characterized in that: The power device (1) is a motor (11), and the output shaft of the power device (1) is fixedly arranged on the worm of one of the screw elevators (21).

5. The bed frame with both manual and automatic lifting functions according to claim 3, characterized in that: The power device (1) is a manual winch (12), and the power device (1) is fixedly arranged on a worm of one of the screw elevators (21).

6. The bed frame with both manual and automatic lifting functions according to claim 3, characterized in that: The power device (1) comprises a motor (11) and a manual winch (12), wherein the output shaft of the motor (11) is fixed to the worm of one of the screw elevators (21), and the manual winch (12) is fixed to the worm of the other screw elevator (21).

7. A bed frame with both manual and automatic lifting functions according to any one of claims 1 or 2, characterized in that: The outer cover of the screw rod (3) is provided with a protective cover (5), the protective cover (5) is provided with a movable opening (51), the movable opening (51) is extended along the axis of the screw rod (3), the nut (4) is fixed with a connecting plate (41), the connecting plate (41) is passed through the movable opening (51), and the movable bed frame (6) is fixedly connected to the connecting plate (41).

8. A bed frame with both manual and automatic lifting functions according to any one of claims 1 or 2, characterized in that: A bearing (7) is sleeved on the top of the screw rod (3) and is threadedly connected thereto, and the bearing (7) is fixedly connected to a fixing seat (8).

9. A bed frame with both manual and automatic lifting functions according to any one of claims 1 or 2, characterized in that: A reinforcing plate (9) is fixedly connected between the movable bed frame (6) and the nut (4).

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