A wheelchair and multifunctional nursing bed

Abstract

The utility model discloses a kind of wheelchair and multifunctional nursing bed, it includes: wheelchair main body, it has the first plate piece of supporting human body;Second plate piece, for supporting human body back, the second plate piece is hinged in the rear end of first plate piece;Front wheel assembly, including the first universal wheel group of being arranged in the front end of wheelchair main body;Rear wheel assembly, including second universal wheel group and directional wheel group;Connecting rod assembly, two ends are respectively hinged on second plate piece and wheelchair main body, one of second universal wheel group and directional wheel group is arranged in the rear end of wheelchair main body, another is arranged on connecting rod assembly;When second plate piece is rotationally cooperated on first plate piece, one of second universal wheel group and directional wheel group is abutted on ground, the utility model provides a kind of wheelchair and multifunctional nursing bed with good stability and easy transverse movement.

Description

Technical Field

[0001] This utility model relates to the field of medical bed technology, and in particular to a wheelchair and a multifunctional nursing bed. Background Technology

[0002] For many people with mobility impairments, wheelchairs are an essential part of life. From waking up to going to bed, they use wheelchairs for almost all their activities. In addition, for patients who are bedridden for a long time, they need to get some fresh air after lying down for a while. They are usually carried by wheelchairs and assisted by relatives or medical staff to go outdoors. For these people, they need to move back and forth between the bed and the wheelchair every day. When moving, they need to be carried by assistants, which not only makes the whole process cumbersome and puts a burden on the assistants, but also makes it easy for the wheelchair to come loose and fall during the process. It takes two or more people to transfer the patient safely.

[0003] According to existing technology, there is a modular wheelchair nursing bed, with publication number CN215840099U. The wheelchair includes a wheelchair support and a seat. The wheelchair support is provided with a second omnidirectional wheel, which can be driven by a motor to rotate the wheelchair. Since the front and rear wheels of the wheelchair are all omnidirectional wheels, the flexibility is improved, making it easy to move the wheelchair out of and into the nursing bed. However, there are also risks, such as the wheelchair may suddenly brake or veer sideways when encountering a small obstacle, affecting stability.

[0004] Another type of multifunctional wheelchair nursing bed, with publication number CN209270138U, has a walking mechanism installed at the bottom of the wheelchair base. The walking mechanism includes a front walking mechanism and a rear walking mechanism. The front walking mechanism uses omnidirectional wheels, and the rear walking mechanism includes two directional wheels. The directional wheels are responsible for driving the front wheels forward and providing stability. However, since the directional wheels cannot turn, the wheelchair is not easy to move laterally, making it difficult to move the wheelchair out of or into the nursing bed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a wheelchair and a multifunctional nursing bed with good stability and easy lateral movement.

[0006] To achieve the above objectives, the technical solution of this utility model is: a wheelchair, comprising: The wheelchair body has a first plate that supports the human body; The second plate is used to support the back of the human body, and the second plate is hinged to the rear end of the first plate; The front wheel assembly includes a first omnidirectional wheel assembly located at the front end of the wheelchair body; The rear wheel assembly includes a second swivel wheel set and a directional wheel set; The linkage assembly has its two ends hinged to the second plate and the wheelchair body, respectively. One of the second omnidirectional wheel set and the directional wheel set is located at the rear end of the wheelchair body, and the other is located on the linkage assembly. When the second plate rotates and engages with the first plate, one of the second omnidirectional wheel set and the directional wheel set rests against the ground.

[0007] With the above structure, this utility model has the following advantages compared with the prior art: The rear wheel assembly includes a second omnidirectional wheel set and a directional wheel set, and a connecting rod assembly is provided with its two ends respectively hinged to the second plate and the wheelchair body. One of the second omnidirectional wheel set and the directional wheel set is located at the rear end of the wheelchair body, and the other is located on the connecting rod assembly. In this way, rotating the second plate allows one of the second omnidirectional wheel set and the directional wheel set to rest against the ground. When the second omnidirectional wheel set rests against the ground, the wheelchair can easily move laterally using the first omnidirectional wheel set and the second omnidirectional wheel set; when the directional wheel set rests against the ground, the wheelchair has good stability using the first omnidirectional wheel set and the directional wheel set.

[0008] Preferably, the linkage assembly includes: A first link, one end of which is hinged to a second plate, and one of the second omnidirectional wheel assembly and the fixed wheel assembly is located at the other end of the first link; The second link has one end hinged to the middle of the first link and the other end hinged to the wheelchair body. The structure is simple and makes it easy to drive the directional wheel set to rest against the ground while keeping the second omnidirectional wheel set suspended in the air.

[0009] Preferably, there are two first links, and the second links correspond one-to-one with the first links, so that the link assembly moves stably.

[0010] Preferably, the first connecting rod is located at the left and right ends of the second plate, which provides good stability.

[0011] Preferably, it also includes a connecting rod, with both ends of the connecting rod respectively located on the first connecting rod, which improves the strength of the connecting rod assembly and ensures high reliability.

[0012] Preferably, one end of the second link is hinged to the connecting rod, which facilitates the simultaneous movement of the two first links.

[0013] Preferably, it also includes a first drive cylinder, which is hinged to the wheelchair body, and the piston rod of the first drive cylinder is hinged to the second plate, so as to drive the second plate to rotate and support the second plate at the same time.

[0014] Preferably, it also includes a third plate for supporting the legs of the human body, the third plate being hinged to the front end of the first plate.

[0015] Preferably, it also includes a second drive cylinder, which is hinged to the wheelchair body, and the piston rod of the second drive cylinder is hinged to the third plate, so as to drive the third plate to rotate and support the third plate at the same time.

[0016] A multi-functional nursing bed that includes a wheelchair as described in any of the above claims. Attached Figure Description

[0017] Figure 1 This is a perspective view of a wheelchair in the first state according to the present invention.

[0018] Figure 2 This is a perspective view of a wheelchair in the second state according to the present invention.

[0019] Figure 3 This is a perspective view of a wheelchair linkage assembly according to this utility model.

[0020] Figure 4 This is a perspective view of a multifunctional nursing bed according to this utility model.

[0021] Figure 5 This is a perspective view of a wheelchair applied to a multifunctional nursing bed according to this utility model.

[0022] Figure 6 This is a perspective view of a wheelchair applied to a multifunctional nursing bed with a mattress, according to this utility model.

[0023] Among them, 1. Wheelchair body, 110. First plate, 2. Second plate, 3. Front wheel assembly, 310. First swivel wheel assembly, 4. Rear wheel assembly, 410. Second swivel wheel assembly, 420. Fixed wheel assembly, 5. Linkage assembly, 510. First link, 520. Second link, 530. Connecting rod, 6. First drive cylinder, 7. Third plate, 8. Second drive cylinder, 9. Bed frame, 910. First bed board, 920. Space, 930. Second bed board, 940. Mattress, 10. Armrests. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a perspective view of a wheelchair according to this utility model. Figure 2 This is a perspective view of a wheelchair in a second state according to this utility model, as shown below. Figure 1 and 2In the illustrated embodiment, the present invention provides a wheelchair, including a wheelchair body 1, a second plate 2, a front wheel assembly 3, a rear wheel assembly 4, and a linkage assembly 5. The wheelchair body 1 has a first plate 110 that supports the human body, mainly supporting the area between the back and legs of the human body. The first plate 110 is located at the upper end of the wheelchair body 1. The second plate 2 is used to support the back and head of the human body. The second plate 2 is hinged to the rear end of the first plate 110, so that the second plate 2 rotates up and down to engage with the first plate 110. The front wheel assembly 3 is located at the bottom of the front end of the wheelchair body 1. The front wheel assembly 3 includes a first universal wheel set 310 located at the front end of the wheelchair body 1.

[0026] The rear wheel assembly 4 includes a second omnidirectional wheel set 410 and a directional wheel set 420. The connecting rod assembly 5 is hinged at both ends to the second plate 5 and the wheelchair body 1, respectively. One of the second omnidirectional wheel set 410 and the directional wheel set 420 is located at the rear end of the wheelchair body 1, and the other is located on the connecting rod assembly 5. That is, the second omnidirectional wheel set 410 is located at the bottom of the rear end of the wheelchair body 1, and the directional wheel set 420 is located at the part of the connecting rod assembly 5 near the ground; alternatively, the directional wheel set 420 can be located at the bottom of the rear end of the wheelchair body 1, and the second omnidirectional wheel set 410 can be located at the part of the connecting rod assembly 5 near the ground. In this embodiment, the directional wheel set 420 is located at the bottom of the rear end of the wheelchair body 1, and the second omnidirectional wheel set 410 is located at the part of the connecting rod assembly 5 near the ground. This will be used as an example throughout.

[0027] The second plate 2, the connecting rod assembly 5, and the wheelchair body 1 form a linkage mechanism. When the second plate 2 rotates downwards, it drives the connecting rod assembly 5 to rotate downwards until the second universal wheel set 410 on the connecting rod assembly 5 touches the ground. At this time, the connecting rod assembly 5 drives the wheelchair body 1 to tilt upwards, causing the directional wheel set 420 of the wheelchair body 1 to leave the ground. In this way, the entire wheelchair is supported by the first universal wheel set 310 and the second universal wheel set 410, making the wheelchair flexible and easy to move laterally. Figure 2 When the second plate 2 rotates upward, it drives the linkage assembly 5 to rotate upward until the second universal wheel set 410 located on the linkage assembly 5 is lifted off the ground. At this time, the linkage assembly 5 drives the wheelchair body 1 to move downward, causing the directional wheel set 420 of the wheelchair body 1 to rest against the ground. In this way, the entire wheelchair is supported by the first universal wheel set 310 and the directional wheel set 420, which makes the wheelchair stable and easy to use. Figure 1 .

[0028] Specifically, the first omnidirectional wheel assembly 310 includes two first omnidirectional wheels, the second omnidirectional wheel assembly 410 includes two second omnidirectional wheels, and the directional wheel assembly 420 includes two directional wheels.

[0029] As one embodiment, it also includes a first drive cylinder 6, which is hinged to the wheelchair body 1. The piston rod of the first drive cylinder 6 is hinged to the second plate 2, facilitating the rotation of the second plate 2 and providing support for it. Specifically, the first drive cylinder 6 is located between the two second connecting rods 520.

[0030] As one embodiment, it also includes a third plate 7 for supporting the human leg. The third plate 7 is hinged to the front end of the first plate 1 to facilitate support for the human leg. Specifically, it also includes a second drive cylinder 8, which is hinged to the wheelchair body 1. The piston rod of the second drive cylinder 8 is hinged to the third plate 7 to facilitate rotation of the third plate 7 and to support the third plate 7.

[0031] Specifically, the drive cylinder can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. In this embodiment, an electric cylinder is selected.

[0032] As one embodiment, the wheelchair body 1 is provided with armrests 10 on both the left and right sides, which are convenient for holding onto and also serve as baffles.

[0033] Figure 3 This is a perspective view of a wheelchair linkage assembly according to this utility model, as shown below. Figure 3 In the illustrated embodiment, the linkage assembly 5 includes a first linkage 510 and a second linkage 520. The upper end of the first linkage 510 is hinged to the second plate 2. One of the second omnidirectional wheel assembly 410 and the directional wheel assembly 420 is located at the lower end of the first linkage 510. One end of the second linkage 520 is hinged to the middle of the first linkage 510, and the other end is hinged to the wheelchair body 1. That is, the second omnidirectional wheel assembly 410 is located at the lower end of the first linkage 510, or one of the directional wheel assemblies 420 can be located at the lower end of the first linkage 510. The structure is simple and facilitates the second plate 2 to drive the wheelchair body 1 in linkage. In this embodiment, the second omnidirectional wheel assembly 410 is located at the lower end of the first linkage 510, and this will be used as an example in the following embodiments.

[0034] In one embodiment, there are two first connecting rods 510, and two second connecting rods 520 corresponding to the first connecting rods 510. The connecting rod assembly 5 moves stably. In addition, when the second omnidirectional wheel group 410 on the first connecting rod 510 abuts against the ground, the first connecting rod 510 supports the second plate 2. Furthermore, the first connecting rods 510 are located at the left and right ends of the second plate 2, making the connecting rod assembly 5 more stable and providing better support for the second plate 2, resulting in more even force distribution.

[0035] As one embodiment, it also includes a connecting rod 530, with both ends of the connecting rod 530 respectively disposed on the first connecting rod 510, connecting the two first connecting rods 510 together, improving the strength and stability of the connecting rod assembly 5, ensuring high reliability, and facilitating synchronous movement of the two first connecting rods 510. Specifically, one end of the second connecting rod 520 is hinged to the connecting rod 530, facilitating the simultaneous movement of the two first connecting rods 510.

[0036] Figure 4 This is a perspective view of a multifunctional nursing bed according to this utility model. Figure 5 This is a perspective view of a wheelchair applied to a multifunctional nursing bed according to this utility model. Figure 6 This is a perspective view of a wheelchair applied to a multifunctional nursing bed with a mattress, as per this utility model. Figure 4 , 5 In the embodiment shown in Figure 6, this utility model also provides a multifunctional nursing bed, including a bed body 9 and a first bed board 910 disposed on one side of the bed body 9. The other side of the bed body 9 is provided with a space 920 for placing the wheelchair body 1, as shown in the figure. By using a first drive cylinder 6 to drive the second plate 2 downwards and a second drive cylinder 8 to drive the third plate 7 upwards, the first plate 110, the second plate 2, and the third plate 7 on the wheelchair body 1 are positioned on the same horizontal plane. This allows the first bed board 910, the first plate 110, the second plate 2, and the third plate 7 to form a complete bed. Figure 5 .

[0037] When the first plate 110, the second plate 2, and the third plate 7 are on the same horizontal plane, the first universal wheel assembly 310 and the second universal wheel assembly 410 support the wheelchair body 1, which facilitates the lateral movement of the wheelchair, that is, facilitates the wheelchair to move out of the space 920 of the bed 9 and into the space 920 of the bed 9. This is because fixed wheels increase the friction between the wheelchair body 1 and the ground, which is not conducive to the lateral movement of the wheelchair body 1. However, the first universal wheel assembly 310 and the second universal wheel assembly 410 are both universal wheels, which facilitates the lateral movement of the wheelchair body 1.

[0038] The first drive cylinder 6 drives the second plate 2 to rotate upwards, and the second drive cylinder 8 drives the third plate 7 to rotate downwards, so that the second plate 2 on the wheelchair body 1 stands upright to support the back of the user, while the third plate 7 tilts downwards to support the legs. The first omnidirectional wheel set 310 and the directional wheel set 420 support the wheelchair body 1. Due to the presence of the directional wheels, the wheelchair body 1 is not easy to move laterally or rotate circumferentially, resulting in good stability.

[0039] As one embodiment, a mattress 940 is provided on the first bed board 910, as well as on the first plate 110, the second plate 2, and the third plate 7. Figure 6 .

[0040] As one embodiment, at least one of the armrests 10 is hinged to the wheelchair body 1. When the wheelchair body 1 is placed in the space 920, the armrest 10 near the first bed board 910 rotates downward so that the armrest 10 does not affect the human body's lying position.

[0041] The principle of this invention is that the rear wheel assembly 4 includes a second universal wheel set 410 and a directional wheel set 420. A connecting rod assembly 5 is also provided, with its two ends hinged to the second plate 2 and the wheelchair body 1 respectively. One of the second universal wheel set 410 and the directional wheel set 420 is located at the rear end of the wheelchair body 1, and the other is located on the connecting rod assembly 5. Rotating the second plate 2 allows one of the second universal wheel set 410 or the directional wheel set 420 to rest against the ground. When the second universal wheel set 410 rests against the ground, the wheelchair can easily move laterally using the first universal wheel set 310 and the second universal wheel set 410; when the directional wheel set 420 rests against the ground, the wheelchair achieves good stability using the first universal wheel set 310 and the directional wheel set 420.

[0042] Action process: The first drive cylinder 6 drives the second plate 2 to rotate downwards, and the second drive cylinder 8 drives the third plate 7 to rotate upwards, so that the first plate 110, the second plate 2, and the third plate 7 on the wheelchair body 1 are on the same horizontal plane, forming the second bed board 930. Figure 2 At this time, the first omnidirectional wheel assembly 310 and the second omnidirectional wheel assembly 410 support the wheelchair body 1, facilitating the lateral movement of the wheelchair body 1. This allows the wheelchair body 1 to be easily moved out of and into space 920, enabling the patient to lie on the bed board for convenient use. Meanwhile, the first plate 110 and the third plate 7 rest against the bed frame 9, with the bed frame 9 supporting them, while the second plate 2 is supported by the wheelchair body 1.

[0043] After the wheelchair body 1 is moved out of space 920, the first drive cylinder 6 drives the second plate 2 to rotate upwards, and the second drive cylinder 8 drives the third plate 7 to rotate downwards, causing the second plate 2 on the wheelchair body 1 to stand upright to support the human back, while the third plate 7 tilts downwards. The first omnidirectional wheel set 310 and the directional wheel set 420 support the wheelchair body 1. Figure 1 It can be used as a wheelchair for mobility. The main body of the wheelchair 1 is not easy to move laterally or rotate circumferentially, and has good stability.

[0044] Based on the above solutions, if any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A wheelchair, characterized in that: It includes: The wheelchair body (1) has a first plate (110) for supporting the human body. The second plate (2) is used to support the back of the human body. The second plate (2) is hinged to the rear end of the first plate (110). The front wheel assembly (3) includes a first omnidirectional wheel assembly (310) located at the front end of the wheelchair body (1). The rear wheel assembly (4) includes a second omnidirectional wheel assembly (410) and a directional wheel assembly (420). The linkage assembly (5) is hinged at both ends to the second plate (2) and the wheelchair body (1), respectively. One of the second universal wheel assembly (410) and the directional wheel assembly (420) is located at the rear end of the wheelchair body (1), and the other is located on the linkage assembly (5). When the second plate (2) rotates and engages with the first plate (110), one of the second universal wheel assembly (410) and the directional wheel assembly (420) rests against the ground.

2. The wheelchair according to claim 1, characterized in that: The link assembly (5) includes: The first link (510) is hinged at one end to the second plate (2), and one of the second universal wheel assembly (410) and the fixed wheel assembly (420) is located at the other end of the first link (510); The second link (520) has one end hinged to the middle of the first link (510) and the other end hinged to the wheelchair body (1).

3. A wheelchair according to claim 2, characterized in that: There are two first links (510), and the second links (520) correspond one-to-one with the first links (510).

4. A wheelchair according to claim 3, characterized in that: The first connecting rod (510) is located at the left and right ends of the second plate (2).

5. A wheelchair according to any one of claims 3 and 4, characterized in that: It also includes a connecting rod (530), with both ends of the connecting rod (530) respectively disposed on the first connecting rod (510).

6. A wheelchair according to claim 5, characterized in that: One end of the second link (520) is hinged to the connecting rod (530).

7. A wheelchair according to claim 1, characterized in that: It also includes a first drive cylinder (6) hinged to the wheelchair body (1), and the piston rod of the first drive cylinder (6) hinged to the second plate (2).

8. A wheelchair according to claim 1, characterized in that: It also includes a third plate (7) for supporting the legs of the human body, the third plate (7) being hinged to the front end of the first plate (110).

9. A wheelchair according to claim 8, characterized in that: It also includes a second drive cylinder (8) hinged to the wheelchair body (1), and the piston rod of the second drive cylinder (8) hinged to the third plate (7).

10. A multifunctional nursing bed, characterized in that: It includes a wheelchair as described in any one of claims 1-9.

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