Wheelchair lifting and folding device

Abstract

A wheelchair lifting and folding device relates to the field of wheelchairs, including lifting rod, crosspiece and rear support rod, the top end of the lifting rod is fixedly connected on the crosspiece, the inner cavity of the crosspiece is slidably connected with the connecting head, the connecting part of the bottom end of the rear support rod is installed in the connecting head, the outer end surface of the connecting head is rotatably installed with the hinge shaft, the hinge shaft penetrates the connecting part of the rear support rod, and the hinge is formed between the rear support rod and the connecting head, the backrest of the wheelchair is designed as a multi-angle adjustable type, so that seamless switching from a sitting position to a lying state can be realized, not only can the patient adapt to different angle backrests, but also when the patient needs to rest on the bed, the patient can be quickly and comfortably transferred to the bed by switching to the horizontal state, compared with the traditional wheelchair, the patient transfer efficiency and safety are significantly improved, and comprehensive movement and nursing are provided for long-term bedridden or disabled patients.

Description

Technical Field

[0001] This utility model relates to the field of wheelchairs, and in particular to a wheelchair lifting and folding device. Background Technology

[0002] Currently, some patients are unable to move normally due to damage to their legs or nerves connected to their legs, and therefore need to rely on wheelchairs for mobility. In particular, some elderly people often need to be transferred back and forth between wheelchairs and hospital beds. We have found that traditional wheelchairs generally have problems such as limited functionality and inconvenient conversion. Especially for disabled patients who need to be frequently transferred to hospital beds, existing products mostly use a fixed backrest structure, which cannot achieve a flat position. This causes caregivers to expend a lot of physical strength to manually move the patient, and there is a risk of secondary injury to the patient. Utility Model Content

[0003] The purpose of this invention is to provide a wheelchair lifting and folding device to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved through the following technical solution:

[0005] A wheelchair lifting and folding device includes a lifting rod, a crossbar, and a rear support rod. The top end of the lifting rod is fixedly connected to the crossbar. A connector is slidably connected to the inner cavity of the crossbar. A connecting part at the bottom end of the rear support rod is installed in the connector. A hinge shaft is rotatably installed on the outer end face of the connector. The hinge shaft passes through the connecting part of the rear support rod, forming a hinge between the rear support rod and the connector. A multi-toothed ring is fixedly installed on the hinge shaft. A limiting groove is provided on the connector. A limiting slide is slidably installed in the limiting groove. The limiting slide can be embedded in a groove on the surface of the multi-toothed ring. The upper end of the crossbar is hinged to the left end face of the rear support rod on the side closest to the rear support rod.

[0006] Preferably, a handrail is hinged to the left end face of the rear support rod, and a connecting rod is hinged between the lower end face of the handrail and the upper end face of the crossbar.

[0007] Preferably, a backplate cylinder is slidably sleeved on the rear support rod, and an elastic backplate is installed on the backplate cylinder.

[0008] Preferably, the top of the rear support rod is detachably equipped with a mounting part, and a pillow pad is fixedly installed on the mounting part.

[0009] Preferably, a nursing rod is rotatably mounted between the top ends of the two rear support rods, and a massage roller is mounted on the nursing rod.

[0010] Preferably, an elastic band is installed between the two end faces of the mounting part.

[0011] The advantages and positive effects of this utility model are:

[0012] This invention features a multi-angle adjustable backrest design for the wheelchair, enabling seamless switching between sitting and lying positions. This allows patients to adapt to different backrest angles and quickly and comfortably transfer to bed when they need to rest. Compared to traditional wheelchairs, this significantly improves patient transfer efficiency and safety, providing comprehensive mobility and care for patients who are bedridden or have limited mobility. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of a wheelchair lifting and folding device according to the present invention;

[0015] Figure 2 This is a partial structural diagram of the connector of a wheelchair lifting and folding device component according to the present invention;

[0016] Figure 3 This is a partial structural diagram of the connector of a wheelchair lifting and folding device component according to the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the limiting slide and hinge shaft of a wheelchair lifting and folding device component according to the present invention;

[0018] Figure 5 This is a schematic diagram of an embodiment of the wheelchair lifting and folding device of this utility model;

[0019] Figure 6 This is a schematic diagram of another perspective of an embodiment of the wheelchair lifting and folding device of this utility model.

[0020] The labels in the attached diagram are described as follows: wheel assembly 1; leg exercise device 2; easy-care seat device 3; foldable adjustable backrest device 4; main moving wheel 10; wheelchair base 11; bottom rail 12; auxiliary moving wheel 13; lifting rod 401; crossbar 402; connecting rod 403; armrest 404; rear support rod 405; backrest tube 406; grip 407; elastic backrest 408; elastic band 409; pillow pad 410; mounting part 411; nursing rod 412; connector 413; hinge shaft 414; multi-tooth ring body 415; limiting slide 416; limiting slide groove 417. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in an illustrative manner. Therefore, they only show the components related to the present invention.

[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0023] The following is combined Figure 1-6 This utility model will be described in detail below. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of front, back, left, right, up, and down in the view are consistent. Figure 1 The directions shown are consistent with the front-facing, back-facing, left-right, up-down directions of the device.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of at least two components or the interaction relationship of at least two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The embodiments of this invention are further described in detail below with reference to the accompanying drawings:

[0025] Please see Figure 1-6This utility model provides an embodiment of a wheelchair, comprising a wheel assembly 1 at the bottom, two leg exercise devices 2, a seat device 3 for easy care, and a foldable and adjustable backrest device 4. The wheel assembly 1 includes main moving wheels 10, a wheelchair base 11, and auxiliary moving wheels 13. The main moving wheels 10 and the auxiliary moving wheels 13 are both mounted on the wheelchair base 11. A bottom rail 12 is installed on the lower end face of the wheelchair base 11. The foldable and adjustable backrest device 4 is mounted on the wheelchair base 11. The seat device 3 for easy care is mounted between the two leg exercise devices 2. When the patient sits in the wheelchair, their buttocks are on the seat device 3 for easy care, their legs are on the leg exercise devices 2, and their back is against the foldable and adjustable backrest device 4. When the patient needs to be transferred to a bed to lie down and rest, the foldable and adjustable backrest device 4 can be folded and flipped down to a horizontal state, flush with the seat device 3 for easy care, thereby allowing the patient to lie down and making it easier to transfer the patient to a bed.

[0026] The foldable adjustable backrest device 4 can be configured to allow the back to be supported while sitting, and can also be fully flipped and adjusted to a horizontal position for easy reclining. (Referring to the following text...) Figures 1-4This description details the tilting and adjustment performance, which facilitates the transfer of patients to the bed. Specifically, it includes a lifting rod 401, a crossbar 402, and a rear support rod 405. One crossbar 402 is provided on one side of each main moving wheel 10. Two lifting rods 401 are fixedly connected to the lower end face of each crossbar 402. The bottom of each lifting rod 401 is mounted on the wheelchair frame 11. A connector 413 is slidably connected to the inner cavity of each crossbar 402, and a notch is provided at the port of each crossbar 402. The connector 413 is designed to allow for left and right sliding. A connecting portion at the bottom of the rear support rod 405 is installed in the connector 413. A hinge shaft 414 is rotatably mounted on the outside of the connector 413. The hinge shaft 414 passes through the connecting portion of the rear support rod 405, forming a hinge between the rear support rod 405 and the connector 413. A multi-toothed ring 415 is fixedly mounted on the hinge shaft 414. A limiting groove 417 is provided on the connector 413. A limiting slide plate 416 is slidably installed in the limiting groove 417. The piece 416 can be embedded in the groove on the surface of the multi-toothed ring 415. The upper end of the limiting slide piece 416 is provided with a protrusion, and an extension cavity is provided on the upper side wall of the limiting slide groove 417. The protrusion slides into the extension cavity to prevent the limiting slide piece 416 from slipping off. The upper end of the crossbar 402 is hinged to the left end face of the rear support rod 405 on the side near the rear support rod 405. A back plate cylinder 406 is slidably sleeved on each rear support rod 405, and an elastic back plate 408 is connected between two back plate cylinders 406 as a support. The backrest has a detachable mounting part 411 at the top of the rear support rod 405, on which a pillow pad 410 is fixedly mounted to provide head support. An armrest part 404 is hinged to the left end face of the rear support rod 405. A connecting rod 403 is hinged between the lower end face of the armrest part 404 and the upper end face of the crossbar part 402. When the patient is sitting in the wheelchair, their hands can be placed on the armrest part 404. When the rear support rod 405 is flipped to a horizontal position, the armrest part 404 can also be folded down.

[0027] It is worth mentioning that, in this embodiment, a nursing rod 412 is rotatably installed between the top ends of the two rear support rods 405. A massage roller is installed on the nursing rod 412, so that when it is necessary to massage the neck, the mounting part 411 can be removed and the nursing rod 412 can be flipped over so that the patient's neck can be pressed against the massage roller for massage.

[0028] In another embodiment, an elastic band 409 is installed between the two end faces of the mounting part 411, so that the patient can be fixed in place by the elastic band 409 when lying flat.

[0029] In practice, when the patient is sitting in a wheelchair and needs to rest in bed, the caregiver first pulls out the limiting slides 416 on both sides, causing the limiting slides 416 to disengage from the multi-toothed ring body 415, allowing the rear support rod 405 to flip to a horizontal position. At this time, the connector 413 slides into the inner cavity of the crossbar 402, finally making the rear support rod 405 and the crossbar 402 horizontal. The two armrests 404 also fall down, allowing the patient to lie flat on the elastic backrest 408. In this lying position, the patient can easily transfer to the bed by turning over. The height can also be adjusted using the lifting rod 401 at the bottom to match the height of the bed. Moreover, the multi-toothed ring body 415 provides more backrest angle adjustments for the wheelchair, making it very convenient to use.

[0030] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A wheelchair lifting and folding device, comprising a lifting rod (401), a crossbar (402), and a rear support rod (405), characterized in that: The top end of the lifting rod (401) is fixedly connected to the crossbar (402). A connector (413) is slidably connected in the inner cavity of the crossbar (402). The connecting part at the bottom of the rear support rod (405) is installed in the connector (413). A hinge shaft (414) is rotatably mounted on the outer end face of the connector (413). The hinge shaft (414) passes through the connecting part of the rear support rod (405), allowing the rear support rod (405) to connect with the connector (413). A hinge is formed between the two parts. A multi-toothed ring body (415) is fixedly installed on the hinge shaft (414). A limiting groove (417) is provided on the connector (413). A limiting slide piece (416) is slidably installed in the limiting groove (417). The limiting slide piece (416) can be embedded in the groove on the surface of the multi-toothed ring body (415). The upper end of the crossbar (402) is hinged to the left end face of the rear support rod (405) on the side near the rear support rod (405).

2. The wheelchair lifting and folding device according to claim 1, characterized in that: A handrail (404) is hinged to the left end face of the rear support rod (405), and a connecting rod (403) is hinged between the lower end face of the handrail (404) and the upper end face of the crossbar (402).

3. The wheelchair lifting and folding device according to claim 2, characterized in that: A backplate cylinder (406) is slidably sleeved on the rear support rod (405), and an elastic backplate (408) is installed on the backplate cylinder (406).

4. A wheelchair lifting and folding device according to claim 3, characterized in that: The rear support rod (405) has a detachable mounting part (411) at its top end, and a pillow pad (410) is fixedly mounted on the mounting part (411).

5. A wheelchair lifting and folding device according to claim 4, characterized in that: A nursing rod (412) is rotatably mounted between the top ends of the two rear support rods (405), and a massage roller is mounted on the nursing rod (412).

6. A wheelchair lifting and folding device according to claim 5, characterized in that: An elastic band (409) is installed between the two end faces of the mounting part (411).

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