A manual and electric wheelchair-bed

Abstract

The present invention belongs to the technical field of medical hospital beds, and in particular relates to a manual and automatic integrated wheelchair bed, which includes a frame mechanism, a bed board mechanism, an adjustment mechanism, two driving mechanisms, and two protection mechanisms. The frame mechanism provides support and movement for the bed board mechanism, the adjustment mechanism, the driving mechanism, and the protection mechanism. Under normal circumstances, the present invention can provide a lying function for patients through the bed board mechanism. When a patient needs to sit on the bed board mechanism, the driving mechanism can drive the adjustment mechanism to work, thereby adjusting the bed board mechanism. When a patient sits on the bed board mechanism, the patient's lower legs can be bent downward, or the patient's legs can be bent upward, which can provide comfort for the patient and is beneficial to the patient's recovery. Since the patient can directly achieve sitting and standing on the bed board mechanism, there is no need to move the patient, which greatly reduces the workload of medical staff and is also conducive to the patient's sitting and standing operation, providing convenience for the patient's sitting and standing.

Description

Technical Field

[0001] The present invention relates to the technical field of medical hospital beds, and specifically relates to a manual and automatic integrated wheelchair bed. Background Art

[0002] A hospital bed can also be called a medical bed, a nursing bed, etc. It is a hospital bed used by patients during recuperation. The main usage scenarios include major hospitals, township health centers, community health service centers, etc. Considering the movement needs of patients, the existing hospital bed boards are mainly divided into two sections. One section is fixed to the hospital bed, and the other section can be adjusted in angle. The bed board that can be adjusted in angle is located at the back of the patient, so that the patient can sit on the hospital bed, and the back can lean on the bed board to maintain the stability and comfort of the body. However, the existing hospital beds still have the following deficiencies when in use:

[0003] The existing hospital beds can only adjust the bed board at the back position of the patient. When the patient sits on the hospital bed, due to the defect in the structural design of the existing hospital beds, only the lower body part can be kept in a flat state, or the patient bends the legs with their own strength. However, when the patient's legs are injured, they cannot complete the leg bending operation by themselves, resulting in discomfort for the patient during the recovery process and being unfavorable for the patient's recovery. Usually, leg patients can only sit on the edge of the hospital bed or be moved to a wheelchair. Both methods are troublesome and require multiple medical staff to operate. Therefore, the existing hospital beds bring great inconvenience to the patient's sitting and standing. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a manual and automatic integrated wheelchair bed, which solves the problems raised in the above background art.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solutions: A manual and automatic integrated wheelchair bed, comprising a frame mechanism, a bed board mechanism, an adjustment mechanism, two driving mechanisms, and two protection mechanisms.

[0008] The frame mechanism provides support and movement for the bed board mechanism, the adjustment mechanism, the driving mechanism, and the protection mechanism.

[0009] The bed board mechanism is installed on the frame mechanism and is used to carry the patient's body.

[0010] The adjustment mechanism is installed on the frame mechanism and the bed board mechanism and is used to adjust the bed board mechanism from the hospital bed state to the wheelchair state.

[0011] The two driving mechanisms are installed on the frame mechanism and are connected to the adjustment mechanism to drive the adjustment mechanism to work.

[0012] Two of the said protection mechanisms are installed on the frame mechanism to protect both sides of the patient.

[0013] As a preferred technical solution of the present invention, the frame mechanism includes a hospital bed frame. Four steering rollers are fixedly installed at the bottom of the hospital bed frame. Four vertical frames are fixedly installed at the top of the hospital bed frame and are grouped into two sets. Cross bars are fixedly installed on the opposite sides of the two sets of vertical frames. A first connecting rod and a second connecting rod are fixedly installed at the top of the hospital bed frame. A third connecting rod is fixedly installed at the bottom of the hospital bed frame. A limit frame is fixedly installed at the top of the third connecting rod. A side plate is fixedly installed on one side of the hospital bed frame.

[0014] As a preferred technical solution of the present invention, a front baffle is fixedly installed on one side of the hospital bed frame, and a rear baffle is fixedly installed on the other side of the hospital bed frame.

[0015] As a preferred technical solution of the present invention, the bed board mechanism includes a back board, a seat board, a leg board, and a foot board. The back board is hinged to the top of the hospital bed frame by bolts. The bottom of the seat board is hinged to the two cross bars by bolts. One side of the seat board is hinged to the leg board by bolts. The side of the leg board away from the seat board is hinged to the foot board. Two support blocks are fixedly installed at the bottom of the back board. Two support rollers are fixedly installed at the bottom of the seat board.

[0016] As a preferred technical solution of the present invention, a clamping frame is fixedly installed on the back of the seat board.

[0017] As a preferred technical solution of the present invention, the adjustment mechanism is composed of a first adjustment component and a second adjustment component. The first adjustment component includes a first connecting frame. One end of the first connecting frame is rotatably connected to a second connecting frame by a pin shaft. A strengthening rod is fixedly installed at the top of the second connecting frame. The end of the strengthening rod away from the second connecting frame is fixedly connected to the bottom of the back board. The second adjustment component includes a rotating rod. Both ends of the rotating rod are rotatably connected to the corresponding cross bar by bearings. A third connecting frame and a fourth connecting frame are fixedly installed on the surface of the rotating rod. The ends of the third connecting frame and the fourth connecting frame away from the rotating rod are respectively rotatably connected to a fifth connecting frame and a sixth connecting frame by pin shafts. One ends of the fifth connecting frame and the sixth connecting frame are fixedly connected to the bottom of the foot board.

[0018] As a preferred technical solution of the present invention, the driving mechanism includes a worm and worm gear reducer, the worm and worm gear reducer is fixed on the first connecting rod, a fixed cylinder is fixedly installed on one side of the worm and worm gear reducer, a support frame is fixedly installed on the outer surface of the fixed cylinder, the bottom of the support frame is fixedly connected to the top of the second connecting rod, a sliding tube is fixedly installed on the inner wall of the fixed cylinder, a threaded tube is slidably connected to the inner wall of the sliding tube, a driving rod is fixedly installed at one end of the threaded tube, one end of the driving rod away from the threaded tube is rotatably connected to the first connecting frame through a pin shaft, the other end of the driving rod away from the threaded tube is rotatably connected to the third connecting frame through a pin shaft, a lead screw is threadedly connected inside the threaded tube, and one end of the lead screw passes through the worm and worm gear reducer and is fixedly connected to the worm inside it.

[0019] As a preferred technical solution of the present invention, the driving mechanism further includes a telescopic rod and a clamping seat. One end of the telescopic rod is fixedly connected to the lead screw, the other end of the telescopic rod passes through the side plate and is movably connected to a rotating handle seat, the clamping seat is fixed on one side of the side plate, and a manual rotating handle is rotatably connected to the rotating handle seat through a damping rotating shaft.

[0020] As a preferred technical solution of the present invention, the protection mechanism includes an L-shaped mounting plate. One end of the L-shaped mounting plate is fixedly connected to the cross bar, the other end of the L-shaped mounting plate is fixedly connected to the top of the hospital bed frame. Two fixing plates are fixedly installed on the side of the L-shaped mounting plate away from the hospital bed frame. Fixed seats are fixedly installed at the ends of the two fixing plates away from the L-shaped mounting plate. Two rotating plates are hinged to the fixed seats through bolts. A connecting plate is hinged to the two rotating plates through bolts. Side protection plates are fixedly installed on the two rotating plates through bolts. The protection mechanism further includes a fixed rod. One end of the fixed rod is fixedly connected to the hospital bed frame, and the other end of the fixed rod is hinged to a gas spring through a bolt. The end of the gas spring away from the fixed rod is hinged to the connecting plate through a bolt.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a manual and automatic integrated wheelchair bed, which has the following beneficial effects:

[0023] 1. In normal circumstances, the manual-automatic wheelchair bed can provide a lying function for patients through the bed board mechanism. When a patient needs to sit on the bed board mechanism, the driving mechanism can drive the adjusting mechanism to work, thereby adjusting the bed board mechanism. When the patient is sitting on the bed board mechanism, it can make the patient's lower legs bend downward or the patient's legs bend upward, which can provide comfort for the patient and is beneficial to the patient's recovery. Since the patient can directly achieve sitting and standing on the bed board mechanism, there is no need to move the patient, which greatly reduces the workload of medical staff and is also conducive to the patient's sitting and standing operations, providing convenience for the patient's sitting and standing.

[0024] 2. The manual-automatic wheelchair bed drives the adjusting mechanism to work through the driving mechanism. The driving mechanism has two operations: automatic and manual. Thus, when the present invention is pushed outdoors, the bed board mechanism can also be adjusted, enhancing the applicability of the present invention.

[0025] 3. The structure of the manual-automatic wheelchair bed of the present invention is designed simply and reasonably and does not occupy space. The adjustability of the bed board mechanism enhances the applicability of the present invention and is suitable for applications in places such as hospitals, nursing homes, and care homes. Description of the Drawings

[0026] Figure 1 is the front orthographic view of the three-dimensional structure of the present invention;

[0027] Figure 2 is the rear view of the three-dimensional structure of the present invention;

[0028] Figure 3 is the bottom view of the three-dimensional structure of the present invention;

[0029] Figure 4 is the present invention Figure 3 enlarged view of the structure at A in;

[0030] Figure 5 is the bottom view of the three-dimensional structure of the present invention.

[0031] In the figure: 1. Frame mechanism; 11. Hospital bed frame; 12. Steering roller; 13. Front baffle; 14. Rear baffle; 15. Upright frame; 16. Cross bar; 17. First connecting rod; 18. Second connecting rod; 19. Third connecting rod; 110. Limiting frame; 111. Side plate; 2. Bed board mechanism; 21. Backrest; 22. Seat board; 23. Leg board; 24. Foot board; 25. Support block; 26. Support roller; 27. Clamping frame; 3. Adjusting mechanism; 31. First adjusting component; 311. First connecting frame; 312. Second connecting frame; 313. Reinforcing rod; 32. Second adjusting component; 321. Rotating rod; 322. Third connecting frame; 323. Fourth connecting frame; 324. Fifth connecting frame; 325. Sixth connecting frame; 4. Driving mechanism; 41. Worm and worm gear reducer; 42. Fixed cylinder; 43. Support frame; 44. Slide tube; 45. Threaded tube; 46. Driving rod; 47. Lead screw; 48. Telescopic rod; 49. Clamping seat; 410. Rotating handle seat; 411. Manual rotating handle; 5. Protection mechanism; 51. L-shaped mounting plate; 52. Fixed plate; 53. Fixed seat; 54. Rotating plate; 55. Connecting plate; 56. Side guard plate; 57. Fixed rod; 58. Gas spring. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0033] Please refer to Figures 1-5 , the present invention provides the following technical solutions: A manual and automatic wheelchair bed includes a frame mechanism 1, a bed board mechanism 2, an adjusting mechanism 3, two driving mechanisms 4 and two protection mechanisms 5.

[0034] The frame mechanism 1 provides support and movement for the bed board mechanism 2, the adjusting mechanism 3, the driving mechanism 4 and the protection mechanism 5.

[0035] The bed board mechanism 2 is installed on the frame mechanism 1 and is used to carry the patient's body.

[0036] The adjusting mechanism 3 is installed on the frame mechanism 1 and the bed board mechanism 2 and is used to adjust the bed board mechanism 2 from the hospital bed state to the wheelchair state.

[0037] The two driving mechanisms 4 are installed on the frame mechanism 1 and are connected to the adjusting mechanism 3 to drive the adjusting mechanism 3 to work.

[0038] The two protection mechanisms 5 are installed on the frame mechanism 1 and are used to protect both sides of the patient.

[0039] In this embodiment, under normal circumstances, the bed board mechanism 2 can provide a lying function for the patient. When the patient needs to sit on the bed board mechanism 2, the driving mechanism 4 can drive the adjusting mechanism 3 to work, so as to adjust the bed board mechanism 2. When the patient sits on the bed board mechanism 2, the patient's lower legs can be bent downward or the patient's legs can be bent upward, which can provide comfort for the patient and is beneficial to the patient's recovery. Since the patient can directly sit and stand on the bed board mechanism 2, there is no need to move the patient, which greatly reduces the workload of medical staff and is also beneficial for the patient to perform sitting and standing operations, providing convenience for the patient's sitting and standing.

[0040] Specifically, the frame mechanism 1 includes a hospital bed frame 11. Four steering rollers 12 are fixedly installed at the bottom of the hospital bed frame 11. Four upright frames 15 are fixedly installed at the top of the hospital bed frame 11 and are grouped in pairs. Cross bars 16 are fixedly installed on the opposite sides of the two groups of upright frames 15. A first connecting rod 17 and a second connecting rod 18 are fixedly installed at the top of the hospital bed frame 11. A third connecting rod 19 is fixedly installed at the bottom of the hospital bed frame 11. A limit frame 110 is fixedly installed at the top of the third connecting rod 19. A side plate 111 is fixedly installed on one side of the hospital bed frame 11.

[0041] In this embodiment, the hospital bed frame 11 serves as a basic frame, providing a basic support for the present invention. The design of the four steering rollers 12 facilitates the movement of the present invention; the designs of the upright frames 15, cross bars 16, first connecting rod 17, second connecting rod 18, third connecting rod 19 and side plate 111 provide installation positions for the other components of the present invention and play a role in supporting and fixing; the limit frame 110 can play a limiting role on the bed board mechanism 2.

[0042] Specifically, a front baffle 13 is fixedly installed on one side of the hospital bed frame 11, and a rear baffle 14 is fixedly installed on the other side of the hospital bed frame 11.

[0043] In this embodiment, the designs of the front baffle 13 and the rear baffle 14 can play a protective role for the patient on the bed board mechanism 2, preventing the patient's head or feet from extending beyond the range of the bed board mechanism 2.

[0044] Specifically, the bed board mechanism 2 includes a back board 21, a seat board 22, a leg board 23 and a foot board 24. The back board 21 is hinged to the top of the hospital bed frame 11 by bolts. The bottom of the seat board 22 is hinged to the two cross bars 16 by bolts. One side of the seat board 22 is hinged to the leg board 23 by bolts. The side of the leg board 23 away from the seat board 22 is hinged to the foot board 24. Two support blocks 25 are fixedly installed at the bottom of the back board 21. Two support rollers 26 are fixedly installed at the bottom of the seat board 22.

[0045] In this embodiment, under normal conditions, the backrest 21, the seat board 22, the leg board 23 and the foot board 24 are all laid flat, forming a complete bed board. At this time, the patient can lie on the backrest 21, the seat board 22, the leg board 23 and the foot board 24 to rest. When the patient needs to sit up, the patient's buttocks are located on the seat board 22, the backrest 21 rotates upward, driving the patient's back to lift. At the same time, the foot board 24 rotates downward, driving the leg board 23 to rotate at this time, and at the same time the seat board 22 rotates downward, thereby changing the state of the bed board mechanism 2. And the downward rotation of the seat board 22 can prevent the patient from slipping on the seat board 22, and can improve the stability of the patient on the bed board mechanism 2. During the adjustment work of the bed board mechanism 2, the support roller 26 rolls on the support block 25 and separates from it.

[0046] Specifically, a clamping frame 27 is fixedly installed on the back surface of the seat board 22.

[0047] In this embodiment, at this time, the clamping frame 27 cooperates with the limiting frame 110, which can prevent the seat board 22 from rotating upward too much and plays a limiting role on the seat board 22.

[0048] Specifically, the adjusting mechanism 3 is composed of a first adjusting component 31 and a second adjusting component 32. The first adjusting component 31 includes a first connecting frame 311. One end of the first connecting frame 311 is rotatably connected to a second connecting frame 312 through a pin shaft. A reinforcing rod 313 is fixedly installed at the top of the second connecting frame 312. The end of the reinforcing rod 313 away from the second connecting frame 312 is fixedly connected to the bottom of the backrest 21. The second adjusting component 32 includes a rotating rod 321. Both ends of the rotating rod 321 are rotatably connected to the corresponding cross bar 16 through bearings. A third connecting frame 322 and a fourth connecting frame 323 are fixedly installed on the surface of the rotating rod 321. The ends of the third connecting frame 322 and the fourth connecting frame 323 away from the rotating rod 321 are respectively rotatably connected to a fifth connecting frame 324 and a sixth connecting frame 325 through pin shafts. One ends of the fifth connecting frame 324 and the sixth connecting frame 325 are both fixedly connected to the bottom of the foot board 24.

[0049] In this embodiment, the first adjustment component 31 is used to adjust the backrest 21 and the seat board 22, and the second adjustment component 32 is used to adjust the leg board 23 and the foot board 24; the second connecting frame 312 is driven to rotate by the first connecting frame 311, so that the backrest 21 rotates with the second connecting frame 312. At this time, the reinforcing rod 313 improves and ensures the structural strength between the second connecting frame 312 and the backrest 21. During the rotation of the backrest 21, the two support blocks 25 also rotate with the backrest 21. At this time, the support blocks 25 rotate downward and separate from the support rollers 26, so that the support rollers 26 lack the support effect, and the seat board 22 begins to rotate downward. Since the seat board 22 is hinged to the two cross bars 16, the stability of the seat board 22 is ensured, that is, the backrest 21 and the seat board 22 are adjusted; the third connecting frame 322 and the fourth connecting frame 323 are driven to rotate forward by the rotating rod 321. At this time, the fifth connecting frame 324 and the sixth connecting frame 325 drive the foot board 24 to rotate downward. While the foot board 24 rotates downward, it drives the leg board 23 to incline downward. At this time, the patient's leg can be bent downward. By driving the third connecting frame 322 and the fourth connecting frame 323 to rotate reversely by the rotating rod 321, the fifth connecting frame 324 and the sixth connecting frame 325 drive the foot board 24 to rotate upward at this time. While the foot board 24 rotates upward, the leg board 23 inclines upward. At this time, the patient's leg can be bent upward, having two states.

[0050] Specifically, the driving mechanism 4 includes a worm and worm gear reducer 41. The worm and worm gear reducer 41 is fixed on the first connecting rod 17. A fixed cylinder 42 is fixedly installed on one side of the worm and worm gear reducer 41. A support frame 43 is fixedly installed on the outer surface of the fixed cylinder 42. The bottom of the support frame 43 is fixedly connected to the top of the second connecting rod 18. A sliding tube 44 is fixedly installed on the inner wall of the fixed cylinder 42. A threaded tube 45 is slidably connected to the inner wall of the sliding tube 44. One end of the threaded tube 45 is fixedly installed with a driving rod 46. One end of the driving rod 46 away from the threaded tube 45 is rotatably connected to the first connecting frame 311 through a pin shaft, and the other end of the driving rod 46 away from the threaded tube 45 is rotatably connected to the third connecting frame 322 through a pin shaft. A lead screw 47 is threadedly connected to the inside of the threaded tube 45. One end of the lead screw 47 penetrates through the worm and worm gear reducer 41 and is fixedly connected to the worm inside it.

[0051] In this embodiment, the number of driving mechanisms 4 is two, and the two driving mechanisms 4 drive the first adjusting component 31 and the second adjusting component 32 to work respectively; the driving rod 46 of one driving mechanism 4 is rotatably connected to the first connecting frame 311, and the lead screw 47 is driven to rotate by the worm and worm gear reducer 41. At this time, the threaded pipe 45 slides inside the sliding pipe 44 under the drive of the lead screw 47, so as to stretch the threaded pipe 45 inside the sliding pipe 44, thereby driving the above-mentioned driving rod 46 to push or pull the first connecting frame 311 to rotate. When the above-mentioned driving rod 46 pushes the first connecting frame 311 to rotate, that is, the threaded pipe 45 slides out of the sliding pipe 44, and the back plate 21 rotates downward. At this time, the supporting stop block 25 starts to contact the supporting roller 26 and lift the supporting roller 26, so as to adjust the back plate 21 and the seat plate 22 to the same horizontal height. When the above-mentioned driving rod 46 pulls the first connecting frame 311 to rotate, that is, the threaded pipe 45 enters the sliding pipe 44, and the back plate 21 rotates upward; similarly, the working principle of the other driving mechanism 4 is the same, and the main difference is that the driving rod 46 in the driving mechanism 4 drives the rotating rod 321 to rotate forward or backward. Under normal conditions, the leg plate 23 and the foot plate 24 are kept horizontal. When the above-mentioned driving rod 46 drives the rotating rod 321 to rotate forward, that is, the threaded pipe 45 enters the sliding pipe 44, at this time the foot plate 24 rotates downward and the leg plate 23 inclines downward. When the above-mentioned driving rod 46 drives the rotating rod 321 to rotate backward, that is, the threaded pipe 45 extends out of the sliding pipe 44, at this time the foot plate 24 rotates upward and the leg plate 23 inclines upward.

[0052] Specifically, the driving mechanism 4 further includes a telescopic rod 48 and a clamping seat 49. One end of the telescopic rod 48 is fixedly connected to the lead screw 47, the other end of the telescopic rod 48 penetrates through the side plate 111 and is movably connected with a rotating handle seat 410. The clamping seat 49 is fixed on one side of the side plate 111, and a manual rotating handle 411 is rotatably connected to the rotating handle seat 410 through a damping rotating shaft.

[0053] In this embodiment, the lead screw 47 can be driven to rotate by rotating the manual rotating handle 411. When the manual rotating handle 411 is not in use, the manual rotating handle 411 is rotated and placed into the rotating handle seat 410. Since the damping rotating shaft connects the rotating handle seat 410 and the manual rotating handle 411, the manual rotating handle 411 will not rotate out of the rotating handle seat 410 without external force. Then the rotating handle seat 410 is rotated and the telescopic rod 49 is squeezed, and the rotating handle seat 410 is clamped into the clamping seat 48.

[0054] Specifically, the protection mechanism 5 includes an L-shaped mounting plate 51. One end of the L-shaped mounting plate 51 is fixedly connected to the cross bar 16, and the other end of the L-shaped mounting plate 51 is fixedly connected to the top of the hospital bed frame 11. Two fixing plates 52 are fixedly installed on the side of the L-shaped mounting plate 51 away from the hospital bed frame 11. One end of the two fixing plates 52 away from the L-shaped mounting plate 51 is fixedly installed with a fixing seat 53. Two rotating plates 54 are hinged to the fixing seat 53 by bolts. A connecting plate 55 is hinged to the two rotating plates 54 by bolts. Side guard plates 56 are fixedly installed on the two rotating plates 54 by bolts. The protection mechanism 5 further includes a fixing rod 57. One end of the fixing rod 57 is fixedly connected to the hospital bed frame 11, and the other end of the fixing rod 57 is hinged to a gas spring 58 by bolts. One end of the gas spring 58 away from the fixing rod 57 is hinged to the connecting plate 55 by bolts.

[0055] In this embodiment, in order to facilitate the patient to move up and down from the bed board mechanism 2 and at the same time provide protection measures for the patient on the bed board mechanism 2, protection mechanisms 5 are installed on both sides of the hospital bed frame 11. When the protection mechanism 5 is not in use, by pressing the side guard plate 56 towards the front baffle 13, at this time, the two rotating plates 54 rotate relative to the fixing seat 53, and the two rotating plates 54 rotate towards the front baffle 13. At this time, while the side guard plate 56 descends and moves towards the front baffle 13, at the same time, the connecting plate 55 starts to rotate downward and drives the gas spring 58 to rotate, which can play a buffering role. Finally, the side guard plate 56 is adjusted to be parallel to the bed board mechanism 2, so as to facilitate the patient to get on and off the bed; when it is necessary to adjust the side guard plate 56 to the normal state, just pull the side guard plate 56 towards the rear baffle 14.

[0056] Working principle and usage process of the present invention: In the normal state, the backrest 21, the seat board 22, the leg board 23 and the foot board 24 are all laid flat, forming a complete bed board. At this time, the patient can lie on the backrest 21, the seat board 22, the leg board 23 and the foot board 24 to rest. When the patient needs to sit up, start the two worm and worm gear reducers 41. At this time, one of the worm and worm gear reducers 41 drives the lead screw 47 to rotate. At this time, the threaded pipe 45 slides inside the sliding pipe 44 under the drive of the lead screw 47. The threaded pipe 45 enters the inside of the sliding pipe 44, so that the driving rod 46 pulls the first connecting frame 311 to rotate, and then the first connecting frame 311 drives the second connecting frame 312 to rotate, so that the backrest 21 rotates with the second connecting frame 312. At this time, the support block 25 rotates downward and separates from the support roller 26, so that the support roller 26 lacks the support effect, and the seat board 22 begins to rotate downward, so that the patient's back can lean on the backrest 21, and the patient's buttocks sit on the seat board 22. At the same time, the other worm and worm gear reducer 41 drives the lead screw 47 to rotate. At this time, the threaded pipe 45 slides inside the sliding pipe 44 under the drive of the lead screw 47. The threaded pipe 45 enters the inside of the sliding pipe 44, so that the driving rod 46 pulls the rotating rod 321 to rotate forward. At this time, the fifth connecting frame 324 and the sixth connecting frame 325 drive the foot board 24 to rotate downward. While the foot board 24 rotates downward, it drives the leg board 23 to tilt downward. At this time, the patient's legs can be bent downward, realizing the sitting-up operation of the patient. At the same time, the two lead screws 47 can be driven to rotate by the manual turning handle 411. When the side guard plate 56 is not needed, press the side guard plate 56 in the direction close to the front baffle 13. At this time, the two rotating plates 54 rotate relative to the fixed seat 53. The two rotating plates 54 rotate in the direction close to the front baffle 13. At this time, while the side guard plate 56 descends, it also moves in the direction of the front baffle 13. At the same time, the connecting plate 55 begins to rotate downward and drives the gas spring 58 to rotate, which can play a buffering role. Finally, the side guard plate 56 is adjusted to be parallel to the bed board mechanism 2.

[0057] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric and manual wheelchair bed, characterized in that: It includes a frame mechanism (1), a bed board mechanism (2), an adjustment mechanism (3), two driving mechanisms (4) and two protection mechanisms (5); The frame mechanism (1) provides support and movement for the bed board mechanism (2), the adjustment mechanism (3), the driving mechanism (4) and the protection mechanism (5); The bed board mechanism (2) is installed on the frame mechanism (1) and is used to carry the patient's body; The adjustment mechanism (3) is installed on the frame mechanism (1) and the bed board mechanism (2) and is used to adjust the bed board mechanism (2) from the hospital bed state to the wheelchair state; The two driving mechanisms (4) are installed on the frame mechanism (1) and are connected to the adjustment mechanism (3) to drive the adjustment mechanism (3) to work; The two protection mechanisms (5) are installed on the frame mechanism (1) and are used to protect both sides of the patient; The frame mechanism (1) includes a hospital bed frame (11), four steering rollers (12) are fixedly installed at the bottom of the hospital bed frame (11), four vertical frames (15) are fixedly installed at the top of the hospital bed frame (11) and are grouped into two sets, cross bars (16) are fixedly installed on the opposite sides of the two sets of vertical frames (15), a first connecting rod (17) and a second connecting rod (18) are fixedly installed at the top of the hospital bed frame (11), a third connecting rod (19) is fixedly installed at the bottom of the hospital bed frame (11), a limiting frame (110) is fixedly installed at the top of the third connecting rod (19), and a side plate (111) is fixedly installed on one side of the hospital bed frame (11); The bed board mechanism (2) includes a back board (21), a seat board (22), a leg board (23) and a foot board (24), the back board (21) is hinged to the top of the hospital bed frame (11) by bolts, the bottom of the seat board (22) is hinged to the two cross bars (16) by bolts, one side of the seat board (22) is hinged to the leg board (23) by bolts, the side of the leg board (23) away from the seat board (22) is hinged to the foot board (24), two support blocks (25) are fixedly installed at the bottom of the back board (21), and two support rollers (26) are fixedly installed at the bottom of the seat board (22); The adjusting mechanism (3) is composed of a first adjusting component (31) and a second adjusting component (32). The first adjusting component (31) includes a first connecting frame (311). One end of the first connecting frame (311) is rotatably connected to a second connecting frame (312) through a pin shaft. A reinforcing rod (313) is fixedly installed at the top of the second connecting frame (312). One end of the reinforcing rod (313) away from the second connecting frame (312) is fixedly connected to the bottom of the back plate (21). The second adjusting component (32) includes a rotating rod (321). Both ends of the rotating rod (321) are rotatably connected to the corresponding cross bars (16) through bearings. A third connecting frame (322) and a fourth connecting frame (323) are fixedly installed on the surface of the rotating rod (321). One end of the third connecting frame (322) and the fourth connecting frame (323) away from the rotating rod (321) are respectively rotatably connected to a fifth connecting frame (324) and a sixth connecting frame (325) through pin shafts. One end of the fifth connecting frame (324) and the sixth connecting frame (325) are both fixedly connected to the bottom of the foot plate (24). The driving mechanism (4) includes a worm and worm gear reducer (41). The worm and worm gear reducer (41) is fixed on the first connecting rod (17). A fixed cylinder (42) is fixedly installed on one side of the worm and worm gear reducer (41). A support frame (43) is fixedly installed on the outer surface of the fixed cylinder (42). The bottom of the support frame (43) is fixedly connected to the top of the second connecting rod (18). A sliding tube (44) is fixedly installed on the inner wall of the fixed cylinder (42). A threaded tube (45) is slidably connected to the inner wall of the sliding tube (44). One end of the threaded tube (45) is fixedly installed with a driving rod (46). One end of the driving rod (46) away from the threaded tube (45) is rotatably connected to the first connecting frame (311) through a pin shaft. The other end of the driving rod (46) away from the threaded tube (45) is rotatably connected to the third connecting frame (322) through a pin shaft. A lead screw (47) is threadedly connected inside the threaded tube (45). One end of the lead screw (47) penetrates through the worm and worm gear reducer (41) and is fixedly connected to the worm inside it. The driving mechanism (4) further includes a telescopic rod (48) and a clamping seat (49). One end of the telescopic rod (48) is fixedly connected to the lead screw (47). The other end of the telescopic rod (48) penetrates through the side plate (111) and is movably connected to a rotating handle seat (410). The clamping seat (49) is fixed on one side of the side plate (111). A manual rotating handle (411) is rotatably connected to the rotating handle seat (410) through a damping rotating shaft. The protection mechanism (5) includes an L-shaped mounting plate (51). One end of the L-shaped mounting plate (51) is fixedly connected to the cross bar (16). The other end of the L-shaped mounting plate (51) is fixedly connected to the top of the hospital bed frame (11). Two fixing plates (52) are fixedly installed on the side of the L-shaped mounting plate (51) away from the hospital bed frame (11).At one end of the two fixing plates (52) away from the L-shaped mounting plate (51), a fixing seat (53) is fixedly installed. Two rotating plates (54) are hinged to the fixing seat (53) by bolts. A connecting plate (55) is hinged to the two rotating plates (54) by bolts. Side guard plates (56) are fixedly installed on the two rotating plates (54) by bolts. The protection mechanism (5) further includes a fixing rod (57). One end of the fixing rod (57) is fixedly connected to the hospital bed frame (11). The other end of the fixing rod (57) is hinged to a gas spring (58) by bolts. The end of the gas spring (58) away from the fixing rod (57) is hinged to the connecting plate (55) by bolts., 2. The one-handed and automatic wheelchair bed according to claim 1, wherein: A front baffle (13) is fixedly installed on one side of the hospital bed frame (11), and a rear baffle (14) is fixedly installed on the other side of the hospital bed frame (11).

3. The hand-operated and power-operated integrated wheelchair bed according to claim 1, wherein: A clamping frame (27) is fixedly installed on the back of the seat board (22).

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