Folding wheelchair bed with defecation function

Abstract

According to the folding wheelchair bed with the defecation function, a second sliding shaft of a connecting vertical rod slides to the side, close to a backrest plate, of a connecting sliding groove, at the moment, a folding frame is unfolded, the bottom of the folding wheelchair bed is supported, the backrest plate is far away from a connecting plate through a connecting rotating shaft, and then the folding wheelchair bed is folded. The connecting plate is far away from the supporting plate through the connecting rotating shaft, the folding wheelchair bed can be adjusted to be in a bed posture or a wheelchair posture by adjusting the angle of the backrest plate, easy conversion of a bed-chair mode is achieved, the connecting plate for placing legs is not at a fixed angle any more, and the legs can be converted into states along with the connecting plate; meanwhile, long-time sitting posture is not needed any more, back pressure is reduced, and fatigue is relieved. The first sliding shaft slides in the sliding groove in a reciprocating mode to control the defecation plate to move back and forth, conversion between a normal use mode and a defecation mode is achieved, the folding wheelchair bed adopts a connecting rod type folding mode, the structure is simple, and storage is convenient.

Description

Technical Field

[0001] This utility model relates to the field of folding wheelchair bed technology, and in particular to a folding wheelchair bed with toilet function. Background Technology

[0002] When disabled people sit in wheelchairs for extended periods, their lower limb blood circulation weakens, making them highly susceptible to varicose veins. At the same time, prolonged sitting puts a lot of pressure on the lower back, causing fatigue. Traditional wheelchairs cannot effectively address this issue. Furthermore, most wheelchairs on the market currently lack special designs for disabled individuals, such as toilet facilities. In addition, wheelchairs are fixed in shape, large in size, and have limited flexibility, making them inconvenient to store. Utility Model Content

[0003] This utility model provides a folding wheelchair bed with a toilet function, which can reduce the probability of varicose veins, relieve fatigue, realize the conversion between normal use mode and toilet mode, and is convenient to store. The specific technical solution is as follows:

[0004] This utility model provides a folding wheelchair bed with toilet function, including a support plate, a connecting plate movably connected to one side of the support plate via a connecting shaft, and an adjustable backrest plate movably connected to the other side of the support plate via a connecting shaft.

[0005] The support plate has an inverted frustum-shaped defecation hole through the center of its top. The defecation hole is equipped with a toilet board that matches its size. The support plate has sliding frames on both sides of its bottom. Each sliding frame has a first sliding groove. The first sliding groove on both sides is equipped with a first sliding shaft. The first sliding shaft is fixedly connected to the toilet board.

[0006] Folding frames are respectively provided on both sides of the bottom of the support plate. Each folding frame includes a connecting rod. A connecting groove is opened through the surface of the connecting rod along its length. A connecting vertical rod is provided on one side of the connecting rod. The connecting vertical rod is slidably connected to the connecting groove through a second sliding shaft. The bottom of the other side of the connecting rod is fixedly connected to one end of a right-angle rod. The other end of the right-angle rod is fixedly connected to one end of an auxiliary rod. The other end of the auxiliary rod is fixedly connected to the bottom of the connecting vertical rod. A rear wheel is provided at the bottom of the connecting vertical rod. An extension rod is provided on the outside of the auxiliary rod. A front wheel is provided at the bottom of the extension rod.

[0007] Optionally, foldable handrails are provided on both sides of the top of the support plate, and a controller is provided on the top of one handrail. The rear wheel is connected to a drive motor, and the controller is electrically connected to the drive motor.

[0008] Optionally, the backrest panel is provided with two handle brackets on the rear side, and the backrest panel is folded with the support plate by a drive connecting shaft through a back angle adjustment device.

[0009] Optionally, the middle part of the extension rod and the middle part of the auxiliary rod are movably connected by two limiting elastic frames, and a storage battery is provided on the inner side of the two limiting elastic frames. The storage battery is electrically connected to the drive motor.

[0010] Optionally, the two limiting elastic frames, the extension rod, and the auxiliary rod form a quadrilateral. One end of the two limiting elastic frames is rotatably connected to each other, the other end of one of the two limiting elastic frames is rotatably connected to the middle of the extension rod, and the other end of the other frame is rotatably connected to the middle of the auxiliary rod.

[0011] Optionally, the front wheel is rotatably connected to the bottom of the extension rod, and when the folding wheelchair bed is unfolded, the front wheel is fixedly connected to the bottom of the extension rod.

[0012] Optionally, both the front wheel and the rear wheel are equipped with shock absorption devices.

[0013] Optionally, the front end of the connecting plate is provided with an extension frame that can extend from the inside of the connecting plate. The extension frame has second sliding grooves on both sides. An extension plate is provided inside the extension frame. Rotating shafts are provided on both sides of the extension plate. The extension plate is rotatably connected to the extension frame through the rotating shafts. The return torsion spring of the rotating shaft can fix the rotation angle. The rotating shaft is slidably connected to the second sliding grooves. The connecting plate is folded to the support plate through a connecting shaft.

[0014] This utility model provides a folding wheelchair bed with toileting function, including a support plate. One side of the support plate is movably connected to a connecting plate via a connecting shaft, and the other side of the support plate is movably connected to an adjustable backrest via a connecting shaft. An inverted frustum-shaped defecation hole is perforated through the center of the top of the support plate. A toileting board of matching size is disposed inside the defecation hole. Sliding frames are respectively disposed on both sides of the bottom of the support plate. Each sliding frame has a first sliding groove, and a first sliding shaft is disposed inside the first sliding groove on both sides. The first sliding shaft is fixedly connected to the toileting board. The support plate has folding frames on both sides of its bottom. Each folding frame includes a connecting rod. A connecting groove is formed along the length of the surface of the connecting rod. A connecting vertical rod is provided on one side of the connecting rod. The connecting vertical rod is slidably connected to the connecting groove via a second sliding shaft. The bottom of the other side of the connecting rod is fixedly connected to one end of a right-angle rod. The other end of the right-angle rod is fixedly connected to one end of an auxiliary rod. The other end of the auxiliary rod is fixedly connected to the bottom of the connecting vertical rod. A rear wheel is provided at the bottom of the connecting vertical rod. An extension rod is provided on the outside of the auxiliary rod. A front wheel is provided at the bottom of the extension rod. This invention utilizes a second sliding shaft on the connecting vertical rod to slide to the side of the connecting groove near the backrest panel. At this point, the folding frame unfolds, supporting the bottom of the folding wheelchair bed. The backrest panel is then moved away from the connecting plate via a connecting shaft, and the connecting plate is further moved away from the support plate via the connecting shaft. By adjusting the angle of the backrest panel, the folding wheelchair bed can be adjusted to either a bed or a wheelchair posture, easily switching between bed and chair modes. This allows the connecting plate for leg support to shift from a fixed angle, reducing the likelihood of varicose veins and alleviating back pressure and fatigue by reducing prolonged sitting. Furthermore, the design incorporates a sliding frame with a sliding groove at the bottom of the wheelchair, and the reciprocating sliding of the first sliding shaft within the first sliding groove controls the back-and-forth movement of the toilet seat, enabling the switching between normal use and toilet use modes. The folding wheelchair bed uses a linkage-type folding mechanism, resulting in a simple structure, convenient storage, small folded area, low cost, and suitability for travel needs.

[0015] Compared with the prior art, the innovative points of this utility model embodiment include:

[0016] 1. By sliding the second sliding shaft of the connecting vertical rod to the side of the connecting groove near the backrest, the folding frame unfolds, supporting the bottom of the folding wheelchair bed. The backrest is then moved away from the connecting plate via the connecting shaft, and the connecting plate is moved away from the support plate via the connecting shaft. By adjusting the angle of the backrest, the folding wheelchair bed can be adjusted to either a bed or a wheelchair position, easily switching between bed and chair modes. This allows the connecting plate for leg support to no longer be at a fixed angle, enabling the legs to change positions, thus reducing the probability of varicose veins and alleviating back pressure and fatigue by reducing prolonged sitting. Furthermore, a sliding frame with a sliding groove is designed into the space under the wheelchair, and the reciprocating sliding of the first sliding shaft within the first sliding groove controls the back-and-forth movement of the toilet seat, achieving the switch between normal use and toilet mode. The folding wheelchair bed uses a linkage-type folding method, which is simple in structure, easy to store, has a small folded area, low cost, and meets travel requirements.

[0017] 2. By installing foldable armrests on both sides of the top of the support plate, the armrests can be folded, allowing the folding wheelchair bed to be fully folded. This helps save space, facilitates storage and adjustment of the usage configuration, and ensures safety when the armrests are not folded. A controller is located on the top of one armrest for easy user operation. By connecting the controller to the drive motor, the rear wheels can be controlled for movement and steering, thus enabling the folding wheelchair bed to move and turn, facilitating independent travel for the user.

[0018] 3. By installing two handles on the back of the backrest, it is convenient for caregivers or others to assist the user in moving the folding wheelchair bed, thus enhancing its practicality.

[0019] The backrest panel is folded together with the support plate by a drive shaft driven by the backrest angle adjustment device. This not only meets the user's needs for adjusting the backrest angle, but also has a folding function, making it convenient for storage and saving space.

[0020] 4. By setting two limiting elastic frames in the middle of the extension rod and the middle of the auxiliary rod, the movable connection between the extension rod and the auxiliary rod is achieved, which increases the flexibility and stability of the structure. By setting a storage battery to provide power support for the drive motor, the folding wheelchair bed has an independent power source, which further enhances the autonomy and practicality of the folding wheelchair bed.

[0021] 5. By setting two limiting elastic frames, an extension rod, and an auxiliary rod to form a quadrilateral, with one end of the two limiting elastic frames rotatably connected to each other, the other end of one of the two limiting elastic frames rotatably connected to the middle of the extension rod, and the other end of the other frame rotatably connected to the middle of the auxiliary rod, the folding wheelchair bed can maintain a stable state while taking into account flexibility during folding and unfolding, and has good adaptability and reliability.

[0022] 6. By setting the bottom of the front wheel to rotate and connect to the extension rod, the front wheel can be rotated relative to the extension rod when the folding wheelchair bed needs to be stored. When the folding wheelchair bed is unfolded, the bottom of the front wheel is fixed to the extension rod. This design not only ensures the flexibility of the front wheel, but also helps to improve the stability and safety of the folding wheelchair bed during movement, preventing the front wheel from rotating randomly and causing the user to lose balance or the folding wheelchair bed to go out of control.

[0023] 7. By installing shock-absorbing devices on both the front and rear wheels, the vibration of the folding wheelchair bed caused by uneven road surfaces during operation is effectively reduced, improving user comfort, reducing impact and damage to the folding wheelchair bed, and extending the service life of the equipment.

[0024] 8. An extension frame that can extend from the inside is set at the front end of the connecting plate. The extension frame has second sliding grooves on both sides. The internal extension plate is rotatably connected to the extension frame through a rotating shaft. The return torsion spring of the rotating shaft can fix the rotation angle. The structural design of the rotating shaft and the second sliding groove sliding connection allows the length of the connecting plate to be flexibly adjusted, increasing the usable space of the folding wheelchair bed and improving its applicability. At the same time, the cooperation of the rotating shaft and the second sliding groove realizes the stable support and angle adjustment function of the extension plate.

[0025] The connecting plate folds with the support plate via a connecting pivot, further enhancing the folding function of the folding wheelchair bed, facilitating storage and transportation, and improving the space utilization of the equipment.

[0026] 9. The folding wheelchair bed with toilet function provided by this utility model can realize the folding of the folding wheelchair bed, and has the advantages of small folding area after folding and simple folding method that only requires manual pressing when folding.

[0027] Of course, implementing any product or method of this utility model does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of the folding wheelchair bed with toilet function provided by this utility model;

[0030] Figure 2 This is a schematic diagram of the planar structure of the toilet seat and sliding frame provided by this utility model;

[0031] Figure 3 This is a side view of the structure of the folding wheelchair bed with toilet function provided by this utility model;

[0032] Figure 4 This is a front view of the structure of the folding wheelchair bed with toilet function provided by this utility model;

[0033] Figure 5 This is a schematic diagram of the planar structure of the folding frame and the limiting elastic frame provided by this utility model;

[0034] Figure 6 This is a schematic diagram of the unfolded structure of the folding wheelchair bed with toilet function provided by this utility model;

[0035] Figure 7 This is a schematic diagram of the folded structure of the folding wheelchair bed with toilet function provided by this utility model.

[0036] Figure 1-7 Components: 1. Support plate; 2. Connecting plate; 21. Extension frame; 22. Second sliding groove; 23. Extension plate; 3. Backrest panel; 31. Handrail frame; 4. Drain hole; 5. Toilet board; 6. Sliding frame; 7. First sliding groove; 8. Folding frame; 81. Connecting rod; 82. Connecting slide groove; 83. Connecting vertical rod; 84. Right angle rod; 85. Auxiliary rod; 86. Rear wheel; 87. Extension rod; 88. Front wheel; 89. Drive motor; 9. Handrail frame; 10. Controller; 11. Limiting elastic frame; 12. Storage battery. Detailed Implementation

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. All identical reference numerals in the drawings refer to the same components.

[0038] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] It should be noted that the terms "comprising" and "having," and any variations thereof, in the embodiments and drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0040] This utility model discloses a folding wheelchair bed with toileting function, which can reduce the probability of varicose veins, relieve fatigue, realize the conversion between normal use mode and toileting mode, and facilitate storage. The following is a detailed description of this utility model embodiment.

[0041] Figure 1 This is a three-dimensional structural diagram of the folding wheelchair bed with toilet function provided by this utility model, as shown below. Figure 1 As shown in the figure, the folding wheelchair bed with toilet function provided by this utility model embodiment includes a support plate 1. A connecting plate 2 is movably connected to one side of the support plate 1 through a connecting pivot, and an adjustable backrest 3 is movably connected to the other side of the support plate 1 through a connecting pivot. That is to say, the connecting plate 2 can be folded with the support plate 1 through the connecting pivot, and the backrest 3 can be folded with the support plate 1 through the connecting pivot.

[0042] See also Figure 1 A drain hole 4, narrow at the top and wide at the bottom, is opened through the center of the top of the support plate 1. For example, the shape of the narrow top and wide bottom is an inverted frustum. A toilet board 5, which matches the size of the drain hole 4, is provided inside the drain hole 4. The toilet board 5 is shaped like an inverted frustum that can fit perfectly with the drain hole 4.

[0043] Figure 2 This is a schematic diagram of the planar structure of the toilet seat and sliding frame provided by this utility model. See also: Figure 1 and Figure 2The bottom sides of the support plate 1 are respectively provided with sliding frames 6. The sliding frames 6 are provided with first sliding grooves 7. The first sliding shafts are provided inside the first sliding grooves 7 on both sides. The first sliding shafts are fixedly connected to the toilet board 5. The fixed connection can be achieved by screw connection, welding, or other methods that can achieve fixed connection. This utility model embodiment does not limit the scope of the invention.

[0044] The sliding frame 6 can be composed of a first horizontal frame, an inclined frame and a second horizontal frame that are connected to each other. The length of the first horizontal frame is less than the length of the second horizontal frame. Correspondingly, the first sliding groove 7 can be divided into a first horizontal section, an inclined section and a second horizontal section that are connected to each other. The length of the first horizontal section is less than the length of the second horizontal section.

[0045] The angle between the inclined section and the bottom surface of the toilet board 5 is called the inclination angle. The size of the inclination angle is the same as the angle between the hypotenuse and the bottom edge of the toilet board 5. The size of the inclination angle can affect the area of ​​the upper and lower bottom surfaces of the toilet board 5. Users can choose according to their needs.

[0046] See also Figure 2 The distance between the sliding frame 6 and the support plate 1, as well as the length of the second horizontal section of the sliding groove 7, need to be set according to the size of the toilet board 5. Generally speaking, the vertical distance corresponding to the sliding groove 7 should be greater than the height of the toilet board 5, and the length of the second horizontal section can be made longer, for example, the length of the second horizontal section should be greater than the length of the toilet board 5.

[0047] In use, the first horizontal section is connected to the upper end of the inclined section, supporting the toilet board 5 in the normal state of the wheelchair. The second horizontal section is connected to the lower end of the inclined section. In the toilet-use state of the wheelchair, the toilet board 5 can slide along the first horizontal section, the inclined section and the second horizontal section in sequence through the first sliding shaft, so that the toilet board 5 is completely stored at the bottom of the support plate 1, and the defecation hole 4 is fully exposed, providing the necessary conditions for toilet use.

[0048] See also Figure 1 Folding frames 8 are respectively provided on both sides of the bottom of the support plate 1. Each folding frame 8 includes a connecting rod 81, and a connecting groove 82 is formed through the surface of the connecting rod 81 along its length. A connecting vertical rod 83 is provided on one side of the connecting rod 81, and the connecting vertical rod 83 is slidably connected to the connecting groove 82 through a second sliding shaft.

[0049] The bottom of the other side of the connecting rod 81 is fixedly connected to one end of the right-angle rod 84. The right-angle rod 84 is a rod with a 90-degree bend, similar to an L-shaped rod. The other end of the right-angle rod 84 is fixedly connected to one end of the auxiliary rod 85, and the other end of the auxiliary rod 85 is fixedly connected to the bottom of the connecting vertical rod 83. The fixed connection can be achieved by screws, welding, or other methods; this embodiment of the invention does not impose any limitations on these methods.

[0050] Furthermore, a rear wheel 86 is provided at the bottom of the connecting vertical rod 83, an extension rod 87 is provided on the outside of the auxiliary rod 85, and a front wheel 88 is provided at the bottom of the extension rod 87. The rear wheel 86 serves as the drive wheel, and its wheel diameter is larger than that of the front wheel 88.

[0051] In the folding frame 8, the connecting rod 81, connecting vertical rod 83, connecting vertical rod 84 and auxiliary rod 85 are connected to each other to form a triangle-like structure. They cooperate with each other to build the first stable triangular frame. This triangular frame structure fundamentally enhances the stability and load-bearing capacity of the folding wheelchair bed.

[0052] The folding wheelchair bed with toilet function provided in this embodiment of the invention slides the second sliding shaft of the connecting vertical rod 83 to the side of the connecting groove 82 near the backrest plate 3. At this time, the folding frame 8 is opened, so that the bottom of the folding wheelchair bed is supported, and the backrest plate 3 is moved away from the connecting plate 2 through the connecting pivot. Then, the connecting plate 2 is moved away from the support plate 1 through the connecting pivot. By adjusting the angle of the backrest plate 3, the folding wheelchair bed can be adjusted to a bed posture or a wheelchair posture, realizing easy conversion between bed and chair modes. This makes the connecting plate for leg rest no longer a fixed angle, and the legs can change positions with the connecting plate, thereby reducing the probability of varicose veins. At the same time, it is no longer a long-term sitting posture, reducing back pressure and relieving fatigue. Furthermore, the sliding frame with a sliding groove is designed using the space at the bottom of the wheelchair, and the reciprocating sliding of the first sliding shaft in the sliding groove controls the back-and-forth movement of the toilet board, realizing the conversion between normal use mode and toilet mode. The folding wheelchair bed uses a linkage folding method, which is simple in structure, easy to store, has a small folded area, low cost, and meets travel requirements.

[0053] See also Figure 1 Foldable armrests 9 are provided on both sides of the top of the support plate 1. The armrests 9 can be parallel four-bar linkages. At the front end of the armrests 9, there is a limiting locking device consisting of a spring and a limiting pin. When the limiting pin is pressed down or popped up, the armrests 9 can perform folding and restoring actions through their own linkages, which ensures the complete folding of the folding wheelchair bed and travel safety.

[0054] A controller 10 is installed at the top of one armrest frame 9. The two rear wheels 86 are connected to two independently operating drive motors 89. The controller 10 is electrically connected to the drive motors 89. The controller 10 can control the drive motors 89 to drive the rear wheels 86 to rotate, thereby enabling the folding wheelchair bed to move. The differential speed of the drive motors 89 can be used to change the direction of displacement, such as turning and U-turns, making it possible for users to travel independently.

[0055] Therefore, by setting foldable armrests 9 on both sides of the top of the support plate 1, the armrests 9 can be folded, facilitating the complete folding of the folding wheelchair bed. This helps save space, facilitates storage or adjustment of the usage state, and ensures safety when the armrests 9 are not folded. A controller 10 is installed on the top of one side of the armrest 9, allowing the user to operate it. By electrically connecting the controller 10 to the drive motor 89, the rear wheels 86 can be controlled to move and turn, thus enabling the folding wheelchair bed to move and turn, facilitating independent travel for the user.

[0056] See also Figure 1 Two handles 31 are provided on the rear side of the backrest 3. The backrest 3 is folded to the support plate 1 by driving the connecting shaft through the back angle adjustment device. The back angle adjustment device includes an electric push rod, a rack and a gear mechanism. The electric push rod is located at the bottom of the support plate 1, and the rack and gear mechanism are located on one side of the support plate 1. The electric push rod is fixedly connected to the rack, the rack is externally meshed with the gear mechanism, and the gear mechanism is fixedly connected to the connecting shaft.

[0057] During operation, the electric push rod at the bottom of the support plate 1 pushes the rack and pinion, which in turn drives the gear mechanism to control the rotation of the connecting shaft, thereby controlling the backrest plate 3 to fold. This allows the backrest plate 3 to be adjusted so that the folding wheelchair bed can be fully folded and the comfort of the wheelchair can be improved. The backrest plate 3 is ergonomically designed and can provide patients with a good user experience.

[0058] Therefore, the backrest panel 3 is folded together with the support plate 1 by driving the connecting shaft through the backrest angle adjustment device. This not only meets the user's needs for adjusting the backrest angle, but also has a folding function, making it convenient to store and saving space.

[0059] The handle frame 31 can be rotated and folded. Specifically, the handle frame 31 is vertically fixed to the backrest panel 3 and supports folding from 0° to 90°. When unfolded, the two handle frames 31 automatically engage with the positioning slots to eliminate wobbling. By setting two rotatable and foldable handle frames 31, the folding wheelchair bed can be fully folded. By setting two handle frames 31 on the rear side of the backrest panel 3, it is convenient for caregivers or others to assist the user in moving the folding wheelchair bed, thus enhancing its practicality.

[0060] Figure 3 This is a side view of the structure of the folding wheelchair bed with toilet function provided by this utility model. Figure 4 This is a front view of the structure of the folding wheelchair bed with toilet function provided by this utility model. Figure 5 This is a schematic diagram of the planar structure of the folding frame and the limiting elastic frame provided by this utility model.

[0061] See Figures 3-5 The middle part of the extension rod 87 and the middle part of the auxiliary rod 85 are movably connected by two limiting elastic frames 11. A storage battery 12 is provided on the inner side of the two limiting elastic frames 11, and the storage battery 12 is electrically connected to the drive motor 89.

[0062] Therefore, by setting two limiting elastic frames 11 in the middle of the extension rod 87 and the middle of the auxiliary rod 85, the flexible and stable structure is increased. By setting a storage battery 12 to provide power support for the drive motor 89, the folding wheelchair bed has an independent power source, which further enhances the autonomy and practicality of the folding wheelchair bed.

[0063] Meanwhile, the storage battery 12 is also electrically connected to the electric push rod for adjusting the backrest 3, thereby providing power to the electric push rod for adjusting the angle of the backrest 3.

[0064] See also Figure 5 Two limiting elastic frames 11, an extension rod 87, and an auxiliary rod 85 form a quadrilateral. One end of the two limiting elastic frames 11 is rotatably connected to each other. The other end of one of the two limiting elastic frames 11 is rotatably connected to the middle of the extension rod 87, and the other end of the other is rotatably connected to the middle of the auxiliary rod 85. The rotatable connection can be any rotatable connection method in the prior art, and this utility model embodiment does not limit it in any way.

[0065] Thus, by rotating one end of the two limiting elastic frames 11 to each other, rotating the other end of one of the two limiting elastic frames 11 to the middle of the extension rod 87, and rotating the other end of the other to the middle of the auxiliary rod 85, the two limiting elastic frames 11, the extension rod 87, and the auxiliary rod 85 form a quadrilateral. This structural design has a limiting function, which can limit the extension rod 87, the auxiliary rod 85, and the two limiting elastic frames 11 to two fixed positions.

[0066] Specifically, the two limiting spring brackets 11, in conjunction with the limiting function of the connecting slide 82, can precisely limit the angular rotation range between the extension rod 87 and the auxiliary rod 85, thereby ensuring that the extension rod 87, the auxiliary rod 85, and the two limiting spring brackets 11 can always be maintained in two fixed positions:

[0067] The first fixed position is: the connecting vertical rod 83 slides to the end of the connecting groove 82 near the backrest plate 3, and both limiting elastic frames 11 are unfolded, so that the angle between the extension rod 87 and the auxiliary rod 85 is the largest. At this time, the two limiting elastic frames 11, the extension rod 87 and the auxiliary rod 85 are all in a fixed state.

[0068] The second fixed position is: the connecting vertical rod 83 slides to the end of the connecting groove 82 away from the backrest plate 3, and the angle between the two limiting elastic frames 11 is the preset angle. At this time, the two limiting elastic frames 11, the extension rod 87 and the auxiliary rod 85 are all in a fixed state.

[0069] Therefore, by setting two limiting elastic frames 11, an extension rod 87, and an auxiliary rod 85 to form a quadrilateral, with one end of the two limiting elastic frames 11 rotatably connected to each other, the other end of one of the two limiting elastic frames 11 rotatably connected to the middle of the extension rod 87, and the other end of the other rotatably connected to the middle of the auxiliary rod 85, the folding wheelchair bed can maintain a stable state while taking into account flexibility during folding and unfolding, and has good adaptability and reliability.

[0070] See also Figure 3 The front wheel 88 is rotatably connected to the bottom of the extension rod 87. When the folding wheelchair bed is unfolded, the front wheel 88 is fixedly connected to the bottom of the extension rod 87.

[0071] Specifically, the front wheel 88 is connected to the bottom of the extension rod 87 via a rotating shaft. The rotating shaft has a keyway, and the extension rod 87 has holes with non-uniform radii, meaning holes of varying sizes. When the rotating shaft rotates to a smaller radius, the key on the rotating shaft prevents the rotational movement between the front wheel 88 and the extension rod 87, thus fixing the front wheel 88 and the extension rod 87 together, eliminating any relative movement between them. When the rotating shaft rotates to a larger radius, the bottoms of the front wheel 88 and the extension rod 87 can rotate relative to each other, facilitating storage.

[0072] Therefore, by setting the bottom of the front wheel 88 to be rotatably connected to the extension rod 87, the front wheel 88 can be rotated relative to the extension rod 87 when the folding wheelchair bed needs to be stored, and the bottom of the front wheel 88 to be fixedly connected to the extension rod 87 when the folding wheelchair bed is unfolded. This design not only ensures the flexibility of the front wheel 88, but also helps to improve the stability and safety of the folding wheelchair bed during movement, preventing the front wheel 88 from rotating randomly and causing the user to lose balance or the folding wheelchair bed to go out of control.

[0073] In one implementation, both the front wheel 88 and the rear wheel 86 are equipped with shock-absorbing devices. These devices can effectively reduce the vibrations caused by uneven road surfaces during the folding wheelchair bed's operation, improving user comfort, reducing impact and damage to the folding wheelchair bed, and extending its service life.

[0074] Figure 6 This is a schematic diagram of the unfolded structure of the folding wheelchair bed with toilet function provided by this utility model. See also: Figure 1 , Figure 3 and Figure 6 The front end of the connecting plate 2 is provided with an extension frame 21 that can extend from the inside of the connecting plate. The extension frame 21 is provided with second sliding grooves 22 on both sides. The extension plate 23 is provided inside the extension frame 21. A rotating shaft is provided on both sides of the extension plate 23. The extension plate 23 is rotatably connected to the extension frame 21 through the rotating shaft. A return torsion spring is provided on the rotating shaft, which can fix the rotation angle according to the patient's foot shape and movement. The rotating shaft is slidably connected to the second sliding groove 22. The connecting plate 2 can be folded with the support plate 1 through the connecting rotating shaft.

[0075] By pulling the extension frame 21 out from the connecting plate 2, the extension plate 23 can be slid within the second sliding groove 22 via a rotating shaft. This allows for adjustment of the length of the supported leg to accommodate patients with different leg lengths. The extension plate 23 is rotatably connected to the extension frame 21 via the rotating shaft, which is equipped with a return torsion spring. This spring allows for adjustment of the angle of the extended plate 23 supporting the leg according to the patient's footing posture. Specifically, the return torsion spring, sleeved on the rotating shaft, provides elastic driving force for the folding of the extension plate 23. Both ends of the return torsion spring are hooked and fixed to a telescopic rod, which is fixed to the rotating shaft. Simultaneously, a mechanical limiting device precisely constrains the unfolding angle of the extension plate 23.

[0076] Therefore, by setting an extension frame 21 that can extend from the inside at the front end of the connecting plate 2, and setting second sliding grooves 22 on both sides of the extension frame 21, the internal extension plate 23 is rotatably connected to the extension frame 21 through a rotating shaft, and the return torsion spring of the rotating shaft can fix the rotation angle. The structural design of the rotating shaft and the sliding groove slidingly connecting the rotating shaft and the sliding groove allows the length of the connecting plate 2 to be flexibly adjusted, increasing the usable space of the folding wheelchair bed and improving its applicability. At the same time, through the cooperation of the rotating shaft and the sliding groove, the extension plate 23 is stably supported and its angle is adjusted.

[0077] The connecting plate 2 is folded together with the support plate 1 via a connecting pivot, which further enhances the folding function of the folding wheelchair bed, facilitates storage and transportation, and improves the space utilization of the folding wheelchair bed.

[0078] The folding wheelchair bed with toilet function provided by this utility model can realize the folding of the folding wheelchair bed, and has the advantages of small folding area after folding and simple folding method that only requires manual pressing when folding.

[0079] Specifically, when folding the wheelchair bed, the armrest frame 9 is folded by pressing the limiting pin at the front end. Then, the connecting plate 2 is folded downwards with the support plate 1 via the connecting shaft, making the connecting plate 2 perpendicular to the surface of the support plate 1. Next, the backrest plate 3 is folded with the connecting shaft and the support plate 1 by the electric push rod pushing the rack, which in turn drives the gear mechanism to control the connecting shaft to fold with the support plate 1, so that the backrest plate 3 is close to the surface of the support plate 1. Then, the sliding shaft of the connecting vertical rod 83 is slid to the end of the connecting groove 82 away from the backrest plate 3, so that the folding frame 8 is folded. Finally, the two handle frames 31 are rotated and folded. At this time, the folding wheelchair bed is folded, which makes it easy to store. This greatly improves the convenience of using the folding wheelchair bed in different scenarios, making travel and use more convenient.

[0080] When the folding wheelchair bed is needed, the sliding shaft of the connecting vertical rod 83 is slid to the side of the connecting groove 82 near the backrest plate 3. At this time, the folding frame 8 is opened, raising the bottom of the folding wheelchair bed. The backrest plate 3 is then pushed by the electric push rod to the rack, which in turn drives the gear mechanism to control the connecting shaft to change its folding angle. After adjusting to the appropriate angle, the connecting plate 2 is moved away from the support plate 1 via the connecting shaft, and the armrest frame 9 is unfolded, thus completing the unfolding of the folding wheelchair bed. Figure 6 As shown.

[0081] When defecation is needed, the first sliding shaft, which is fixedly connected to the toilet seat 5, slides down into the sliding grooves 7 on both sides. This causes the toilet seat 5 to slide down away from the defecation hole 4. At this time, a bedpan can be placed at the bottom of the defecation hole 4, and the user can defecate directly through the defecation hole 4.

[0082] Furthermore, by adjusting the angle of the backrest 3 and the connecting plate 2, the folding wheelchair bed can be adjusted into a bed posture or a normal wheelchair posture, thereby meeting the different needs of users, alleviating the harm of prolonged sitting, and reducing the occurrence of diseases such as varicose veins in the legs and lumbar strain.

[0083] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of one embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this utility model.

[0084] Those skilled in the art will understand that the modules in the apparatus of the embodiments can be distributed in the apparatus of the embodiments as described in the embodiments, or they can be located in one or more devices different from this embodiment with corresponding changes. The modules of the above embodiments can be combined into one module, or they can be further divided into multiple sub-modules.

[0085] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A folding wheelchair bed with toilet function comprising a support plate (1), characterized in that, One side of the support plate (1) is movably connected with a connecting plate (2) through a connecting rotating shaft, and the other side of the support plate (1) is movably connected with an angle-adjustable backrest plate (3) through a connecting rotating shaft. A top center of the support plate (1) is provided with a reversed circular table-shaped excrement hole (4), an inside of the excrement hole (4) is provided with a toilet plate (5) matched with the size of the excrement hole (4), and both sides of a bottom of the support plate (1) are provided with sliding frames (6), the sliding frames (6) are provided with first sliding grooves (7), and first sliding shafts are arranged in the first sliding grooves (7). Both sides of the bottom of the support plate (1) are provided with folding frames (8), the folding frame (8) comprises a connecting rod (81), a connecting sliding groove (82) is arranged on the surface of the connecting rod (81) along the length direction, a connecting vertical rod (83) is arranged on one side of the connecting rod (81), the connecting vertical rod (83) is slidably connected with the connecting sliding groove (82) through a second sliding shaft, one end of a right-angle rod (84) is fixedly connected with the other side of the bottom of the connecting rod (81), the other end of the right-angle rod (84) is fixedly connected with one end of an auxiliary rod (85), the other end of the auxiliary rod (85) is fixedly connected with the bottom of the connecting vertical rod (83), the bottom of the connecting vertical rod (83) is provided with a rear wheel (86), the outer side of the auxiliary rod (85) is provided with an extension rod (87), and the bottom of the extension rod (87) is provided with a front wheel (88).

2. The folding wheelchair bed with toilet function according to claim 1, characterized in that, Both sides of the top of the support plate (1) are provided with foldable handrails (9), the top of the handrail (9) on one side is provided with a controller (10), the rear wheel (86) is drivingly connected with a driving motor (89), and the controller (10) is electrically connected with the driving motor (89).

3. The folding wheelchair bed with toilet function according to claim 1, characterized in that, The rear side of the backrest plate (3) is provided with two handle frames (31), and the backrest plate (3) is foldably connected with the support plate (1) through a back angle adjusting device driving connecting rotating shaft.

4. The folding wheelchair bed with toilet function according to claim 2, wherein The middle part of the extension rod (87) and the middle part of the auxiliary rod (85) are movably connected through two limiting elastic frames (11), the inner sides of the two limiting elastic frames (11) are provided with storage batteries (12), and the storage batteries (12) are electrically connected with the driving motor (89).

5. The folding wheelchair bed with toilet function according to claim 4, characterized in that, The two limiting elastic frames (11), the extension rod (87) and the auxiliary rod (85) form a quadrilateral, one end of each of the two limiting elastic frames (11) is rotatably connected with each other, the other end of one of the two limiting elastic frames (11) is rotatably connected with the middle part of the extension rod (87), and the other end of the other limiting elastic frame (11) is rotatably connected with the middle part of the auxiliary rod (85).

6. The folding wheelchair bed with toilet function according to claim 1, wherein The front wheel (88) is rotatably connected with the bottom of the extension rod (87), and when the folding wheelchair bed is unfolded, the front wheel (88) is fixedly connected with the bottom of the extension rod (87).

7. The folding wheelchair bed with toilet function according to claim 1, wherein The front wheel (88) and the rear wheel (86) are both provided with damping devices.

8. The folding wheelchair bed with toilet function according to claim 1, wherein The front end of the adapter plate (2) is provided with an extension frame (21) which can extend from the inside of the adapter plate (2), both sides of the extension frame (21) are provided with a second sliding groove (22), the inside of the extension frame (21) is provided with an extension plate (23), both sides of the extension plate (23) are provided with a rotating shaft, the extension plate (23) is rotatably connected with the extension frame (21) through the rotating shaft, the elastic torsion spring of the rotating shaft can fix the rotation angle, the rotating shaft is slidably connected with the second sliding groove (22), and the adapter plate (2) is folded with the support plate (1) through a connecting rotating shaft.

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