Wheelchair structure for patient transfer

Abstract

The utility model provides a wheelchair structure for patient transfer, which relates to the wheelchair technical field, and comprises an upper seat, side armrest frames and a lower moving support, the two sides of the upper seat are rotatably connected with the side armrest frames, the lower moving support is arranged below the upper seat, the two sides of the bottom of the upper seat are fixedly provided with lower connecting sliding columns, and the lower connecting sliding columns are connected with the side armrest frames. Lower supporting rods are rotationally connected to the front and back of the bottom of the upper seat, the tail ends of the lower supporting rods are rotationally connected with the top of a lower moving frame, the middle of the lower moving frame is in threaded connection with a middle threaded rod, and a gear at the head end of the middle threaded rod is meshed with a driving gear. According to the structure, the height difference between the upper seat and the sickbed can be effectively reduced, the transferring efficiency and safety are improved, the side armrest frame in the horizontal direction is lower than the upper seat and can serve as a middle transition area for transferring a patient, the auxiliary difficulty of medical staff is reduced, and the side armrest frame in the vertical direction is prevented from hindering transferring of the patient.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, and in particular to a wheelchair structure for patient transfer. Background Technology

[0002] In the care of patients who are unable to move easily, such as after surgery, they are often moved by wheelchair, and patients need assistance to transfer between the hospital bed and the wheelchair.

[0003] There is a height difference between traditional wheelchairs and hospital beds, with the wheelchair being lower than the bed. This height difference requires patients to exert more effort and movement when transferring between the wheelchair and the bed. This increased effort and movement can increase the patient's pain and risk. Furthermore, the vertical side armrests on both sides of the seat can obstruct the transfer, requiring the patient to make additional movements to avoid the armrests, thus increasing the difficulty for both the patient and medical staff to assist in the transfer. Summary of the Invention

[0004] This utility model provides a wheelchair structure for patient transfer. When it is necessary to transfer a patient from the wheelchair to the hospital bed or vice versa, the lower support rod can push the upper seat upward and accurately lift it to the appropriate height, effectively reducing the height difference between the upper seat and the hospital bed and reducing the difficulty of transferring the patient from the upper seat to the hospital bed.

[0005] This utility model provides a wheelchair structure for patient transfer, specifically including an upper seat, side armrests, and a lower movable support. The side armrests are rotatably connected to both sides of the upper seat, and a lower movable support is provided below the upper seat. Lower connecting slide columns are fixedly provided on both sides of the bottom of the upper seat, and lower support rods are rotatably connected to the front and rear of the bottom of the upper seat. The tail end of the lower support rod is rotatably connected to the top of the lower movable support, and the middle part of the lower movable support is threadedly connected to a central threaded rod. The gear at the head end of the central threaded rod is meshed with a drive gear.

[0006] Furthermore, both ends of the threaded rod are threadedly connected to a lower moving frame. When the threaded rod rotates, the lower moving frames at both ends of the threaded rod move in opposite directions. The lower moving frames drive the lower end of the lower support rod to move closer to or away from the lower support rod, which in turn supports the upper seat to move up or down.

[0007] Furthermore, side connecting grooves are provided on both sides of the side armrest frame.

[0008] Furthermore, the lower movable bracket is rotatably connected to both rear sides, and to both front sides, and is fixedly connected to both sides of the lower movable bracket with side connecting sliding columns.

[0009] Furthermore, the upper cylinder of the side connecting slide column is slidably connected to the side connecting slide groove, the upper seat drives the side armrest frame to rotate horizontally around the cylinder of the side connecting slide column, and the lower connecting slide column and the lower moving bracket are vertically connected through each other.

[0010] Furthermore, the drive gear and the threaded rod are both rotatably connected to the middle part of the lower moving bracket, and the middle parts of the lower moving frame and the lower moving bracket are slidably connected in the horizontal direction.

[0011] Furthermore, the upper seat moves above the side connecting column, and the side armrest changes from a vertical direction to a horizontal state, with the horizontal side armrest lower than the upper seat.

[0012] This utility model provides a wheelchair structure for patient transfer, which has the following beneficial effects:

[0013] When it is necessary to transfer a patient from a wheelchair to a hospital bed or vice versa, the lower support bar can push the upper seat upwards, precisely raising it to the appropriate height. This effectively reduces the height difference between the upper seat and the hospital bed, making the transfer between the upper seat and the hospital bed easier and greatly improving the efficiency and safety of the transfer. It also avoids the situation where, due to the height difference in traditional wheelchairs, patient transfers often require a greater range of motion and force.

[0014] After the upper seat is raised, the side armrests switch to a horizontal position. The horizontal side armrests are lower than the upper seat, which can serve as an intermediate transition area for patient transfer, reducing the difficulty of assistance for medical staff and lowering the difficulty of patient transfer for both the patient and medical staff. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the vertical structure of the side handrail frame of this application is shown;

[0019] Figure 2 A schematic diagram of the drive gear structure of this application is shown;

[0020] Figure 3 A schematic diagram of the horizontal structure of the side handrail frame of this application is shown;

[0021] Figure 4 A schematic diagram of the lower support rod structure of this application is shown;

[0022] Figure 5 A schematic diagram of the structure of the lower movable support of this application is shown;

[0023] Figure 6 A schematic diagram of the structure of the lower connecting slide and the lower moving support in the separated state of this application is shown.

[0024] Figure label:

[0025] 1. Upper seat; 101. Lower connecting slide column; 102. Lower support rod; 103. Lower movable frame; 104. Middle threaded rod; 105. Drive gear;

[0026] 2. Side handrail frame; 201. Side connecting slide groove;

[0027] 3. Lower movable bracket; 301. Rear movable wheel; 302. Front swivel wheel; 303. Side connecting slide column. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] This utility model proposes a wheelchair structure for patient transfer, including an upper seat 1, side armrests 2, and a lower movable support 3. Lower connecting slide columns 101 are fixedly installed on both sides of the bottom of the upper seat 1. Lower support rods 102 are rotatably connected to the front and rear of the bottom of the upper seat 1. The tail end of the lower support rod 102 is rotatably connected to the top of the lower movable support 103. The middle part of the lower movable support 103 is threadedly connected to a central threaded rod 104. The gear at the beginning of the central threaded rod 104 meshes with a drive gear 105. The gear ratio between the drive gear 105 and the central threaded rod 104 is 3:1. For every one revolution of the drive gear 105, the central threaded rod 104 rotates three times, increasing the rotational speed of the central threaded rod 104. Both the drive gear 105 and the central threaded rod 104 rotate with the middle part of the lower movable support 3. The lower movable frame 103 and the lower movable support 3 are horizontally slidably connected in the middle. The upper seat 1 is rotatably connected to the side armrests 2 on both sides. The side armrests 2 are provided with side connecting grooves 201 on both sides. The lower movable support 3 is provided below the upper seat 1. The rear two sides of the lower movable support 3 are rotatably connected to the rear movable wheels 301. The front two sides of the lower movable support 3 are rotatably connected to the front universal wheels 302. The lower movable support 3 is fixedly provided with side connecting sliding columns 303 on both sides. The upper cylinder of the side connecting sliding column 303 is slidably connected to the side connecting groove 201. The upper seat 1 drives the side armrests 2 to rotate horizontally around the cylinder of the side connecting sliding column 303. The lower connecting sliding column 101 and the lower movable support 3 are vertically connected through each other.

[0031] In this embodiment, both ends of the central threaded rod 104 are threadedly connected to a lower moving frame 103. When the central threaded rod 104 rotates, the lower moving frames 103 at both ends of the central threaded rod 104 move in opposite directions. The lower moving frames 103 drive the lower end of the lower support rod 102 to move closer to or away from it. The lower support rod 102 supports the upper seat 1 to move up or down. The upper seat 1 moves upward to reduce the height difference between it and the hospital bed, thereby reducing the difficulty of transferring the upper seat 1 to the hospital bed. This avoids the situation where the patient needs a greater range of motion and strength to transfer due to the height difference between the hospital bed and the wheelchair, which would increase the patient's pain.

[0032] In this embodiment, the upper seat 1 moves to a position higher than the side connecting slide column 303, and the side armrest 2 changes from a vertical direction to a horizontal state. The horizontal side armrest 2 is lower than the upper seat 1. The horizontal side armrest 2 can serve as an intermediate transition area for patient transfer, reducing the difficulty of assistance for medical staff and avoiding the obstruction caused by the vertical side armrest 2 being higher than the upper seat 1, which would require the patient to make additional movements to avoid the armrest during the transfer process.

[0033] In Example 2, based on Example 1, a motor and power supply are installed in the middle of the lower movable bracket 3. The drive gear 105 or the threaded rod 104 directly drives the motor to rotate, and the electric lifting and lowering operation of the upper seat 1 is realized by a button, eliminating the need for another person to manually rotate the drive gear 105 to lift and lower the upper seat 1.

[0034] The working principle of this embodiment is as follows: When it is necessary to transfer a patient from a wheelchair to a hospital bed or vice versa, the person holds the eccentric handle of the drive gear 105 and rotates it. The drive gear 105 rotates and meshes, driving the central threaded rod 104 to rotate. The thread of the central threaded rod 104 drives the lower moving frames 103 on both sides to move closer. The lower moving frames 103 drive the lower end of the lower support rod 102 to move closer. The lower support rod 102 rotates in the vertical direction, supporting the upper seat 1 to move upward. The upper seat 1 rises vertically through the sliding of the lower connecting slide column 101 and the lower moving bracket 3. The upward movement of the upper seat 1 reduces the height difference between the upper seat 1 and the hospital bed, reduces the difficulty of transferring the upper seat 1 to the hospital bed, improves the transfer efficiency and safety, and avoids the situation where the patient transfer often requires a greater range of motion and force due to the height difference between the hospital bed and the wheelchair, which not only increases the patient's pain and risk, but also brings great difficulties to the operation of medical staff.

[0035] The upper seat 1 and the side armrest 2 move upwards simultaneously. As the upper seat 1 is raised above the side connecting slide column 303, the lowest end of the side connecting slide groove 201 contacts the cylinder of the side connecting slide column 303. The upper seat 1 then drives the side armrest 2 to rotate horizontally around the cylinder of the side connecting slide column 303. The side armrest 2 switches to a horizontal state. The horizontal side armrest 2 is lower than the upper seat 1. The horizontal side armrest 2 can serve as an intermediate transition area for patient transfer, reducing the difficulty of assistance for medical staff. This avoids the situation where the existing side armrest 2 is fixed in the vertical direction. The vertical side armrest 2 is higher than the upper seat 1, which would hinder patient transfer and require patients to make additional movements to avoid the armrest during the transfer. This reduces the difficulty of patient transfer and assistance for medical staff.

[0036] By adjusting the height of the lower support rod 102 and switching the state of the side armrest frame 2, the problems existing in traditional wheelchairs during patient transfer are effectively solved, improving the convenience, safety and efficiency of patient transfer, and has significant clinical application value and market prospects.

[0037] The following points should be noted in this article:

[0038] 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0039] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A wheelchair structure for patient transfer, comprising: The upper seat (1), side armrests (2) and lower movable bracket (3) are characterized in that the upper seat (1) is rotatably connected to both sides of the side armrests (2), the lower movable bracket (3) is provided below the upper seat (1), the lower connecting slides (101) are fixedly provided on both sides of the bottom of the upper seat (1), the lower support rods (102) are rotatably connected to the front and rear of the bottom of the upper seat (1), the tail end of the lower support rod (102) is rotatably connected to the top of the lower movable bracket (103), the middle part of the lower movable bracket (103) is threadedly connected to the middle threaded rod (104), and the gear at the head end of the middle threaded rod (104) is meshed with the drive gear (105).

2. The wheelchair structure for patient transfer according to claim 1, characterized in that, Both ends of the threaded rod (104) are threadedly connected to a lower moving frame (103). When the threaded rod (104) rotates, the lower moving frames (103) at both ends of the threaded rod (104) move in opposite directions.

3. The wheelchair structure for patient transfer according to claim 1, characterized in that, The side armrest frame (2) has side connecting grooves (201) on both sides.

4. The wheelchair structure for patient transfer according to claim 1, characterized in that, The lower movable support (3) is rotatably connected to the rear two sides with rear movable wheels (301), and the lower movable support (3) is rotatably connected to the front two sides with front universal wheels (302). The lower movable support (3) is fixedly provided with side connecting slide columns (303) on both sides front and back.

5. A wheelchair structure for patient transfer according to claim 4, characterized in that, The upper cylinder of the side connecting slide column (303) and the side connecting slide groove (201) are slidably connected, and the lower connecting slide column (101) and the lower moving bracket (3) are vertically connected through each other.

6. A wheelchair structure for patient transfer according to claim 5, characterized in that, The drive gear (105) and the threaded rod (104) are rotatably connected to the middle part of the lower moving bracket (3), and the lower moving frame (103) and the middle part of the lower moving bracket (3) are slidably connected in the horizontal direction.

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