Mechanism for wheelchair seat cushion to get in and out of bed

Abstract

The utility model discloses a wheelchair seat cushion getting in and out of bed mechanism which comprises a motor box, supporting moving assemblies are arranged at the four corners of the bottom of the motor box, a backrest is fixedly connected to the rear side of the motor box, a moving assembly is connected to the motor box in a transmission mode, and a first moving plate is driven by the motor box to move towards one side. In the moving process, the motor also rotates, the patient can be driven to do arc-shaped movement in the moving process until the patient is driven to rotate by 90 degrees in the sitting posture direction to be placed beside a bed, medical workers do not need to carry the patient in the whole process, manpower and material resources are saved, operation is convenient and stable, and then handrails are used for pressing downwards. The rectangular friction block is rectangular, so that the situation that the rubber sheet tilts up due to the fact that the gravity center moves is avoided, tilting force can be limited due to the fact that tilting is arc-shaped rotation, and the rectangular friction block makes rectangular contact with the ground, and the whole structure is more stable and safer.

Description

Technical Field

[0001] The utility model belongs to the technical field, and in particular relates to a wheelchair seat cushion getting on and off bed mechanism. Background Art

[0002] The existing electric wheelchairs are electrically controlled, which makes it very difficult for users to get in and out of bed. They are rigid and bulky in appearance, mechanical, and cannot complete large-angle turns in a small space, and cannot achieve safe and stable getting in and out of bed. Utility Model Content

[0003] The utility model aims to provide a wheelchair seat cushion getting on and off the bed mechanism to solve the above-mentioned problems.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a wheelchair seat cushion bed mechanism, comprising a motor box, the four corners of the bottom of the motor box are provided with supporting moving components, the rear side of the motor box is fixedly connected to a backrest, and the motor box is connected to a moving component in a transmission manner;

[0005] The moving component includes at least one slide groove opened on the motor box, a screw rod connected to the motor box for transmission is arranged inside the slide groove, a driven block is threadedly connected to the screw rod, a first moving plate is fixedly connected to the driven block, a second moving plate is interactively arranged on the first moving plate, a motor is slidably arranged on the arc-shaped slide groove, the second moving plate is fixedly connected to the motor drive shaft, and at least one arc-shaped slide groove is also opened on the first moving plate, and the center of the arc-shaped slide groove coincides with the motor drive shaft.

[0006] Preferably, an arc-shaped sliding block is fixedly connected to the bottom of the second movable plate, and the arc-shaped sliding block is slidably connected to the arc-shaped sliding groove.

[0007] Preferably, slide grooves are provided on both sides of the armrest, and one of the slide grooves can swing downward.

[0008] Preferably, a transmission rod is slidably provided on one side of the motor box, the bottom of the transmission rod passes through the motor box, extends to the bottom of the motor box and is fixedly connected to a rectangular friction block, a telescopic rod with resilience is fixedly provided on the rectangular friction block, the top of the telescopic rod with resilience is fixedly connected to the motor box, the top of the transmission rod extends to the bottom of one of the armrests and moves downward due to the downward swing of the armrest.

[0009] Preferably, a rubber sheet is fixedly connected to the bottom.

[0010] Preferably, the supporting moving assembly includes supporting columns fixedly connected to the four corners of the bottom of the motor box, and the supporting columns are movably connected with moving wheels.

[0011] Preferably, the second movable plate is also provided with a pedal for the patient's feet to be placed on, and the pedal moves along with the second movable plate.

[0012] The technical effects and advantages of the utility model are as follows: the first movable plate is driven to move to one side by the motor box, and the motor is also rotating during the movement, so that the patient can be driven to make an arc movement during the movement, until the patient is driven to rotate ninety degrees in the sitting direction and placed next to the bed. The whole process does not require medical staff to carry the patient, saving manpower and material resources, and the operation is convenient and stable. Then the armrest is used to press down until the rubber sheet contacts the ground, which can increase the friction and offset the lateral force of the motor box moving to one side. The rectangular friction block is rectangular, which also prevents the center of gravity from moving and causing the utility model to tilt. Because the tilting is an arc rotation, the rectangular contact between the rectangular friction block and the ground will limit the tilting force, making the whole structure more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a side view of the utility model;

[0015] Figure 3 This is the first view of the working state of the utility model;

[0016] Figure 4 This is the second view of the working state of the utility model.

[0017] In the figure: 1. moving wheel; 2. supporting column; 3. motor box; 4. moving assembly; 401. first moving plate; 402. arc-shaped slide groove; 403. second moving plate; 404. motor; 405. screw rod; 406. slide groove; 407. arc-shaped slider; 408. driven block; 5. armrest; 6. backrest; 7. transmission rod; 8. telescopic rod with rebound; 9. rectangular friction block; 10. rubber sheet. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides a wheelchair seat cushion bed-in-bed mechanism as shown in the figure, comprising a motor box 3, four corners of the bottom of the motor box 3 are provided with supporting moving components, a backrest 6 is fixedly connected to the rear side of the motor box 3, and a moving component 4 is connected to the motor box 3 in a transmission manner;

[0020] The moving component 4 includes at least one slide groove 406 opened on the motor box 3, a screw rod 405 connected to the motor box 3 for transmission is arranged inside the slide groove 406, a driven block 408 is threadedly connected to the screw rod 405, a first moving plate 401 is fixedly connected to the driven block 408, a second moving plate 403 is interactively arranged on the first moving plate 401, a motor 404 is slidably arranged on the arc-shaped slide groove 402, the second moving plate 403 is fixedly connected to the transmission shaft of the motor 404, and at least one arc-shaped slide groove 402 is also opened on the first moving plate 401, and the center of the arc-shaped slide groove 402 coincides with the transmission shaft of the motor 404.

[0021] Specifically, a curved sliding block 407 is fixedly connected to the bottom of the second movable plate 403 , and the curved sliding block 407 is slidably connected to the curved sliding groove 402 .

[0022] Specifically, slide grooves 406 are provided on both sides of the armrest 5, and one of the slide grooves 406 can swing downward.

[0023] Specifically, a transmission rod 7 is slidably provided on one side of the motor box 3, the bottom of the transmission rod 7 passes through the motor box 3 and extends to the bottom of the motor box 3 and is fixedly connected to a rectangular friction block 9, a telescopic rod 8 with resilience is fixedly provided on the rectangular friction block 9, the top of the telescopic rod 8 with resilience is fixedly connected to the motor box 3, the top of the transmission rod 7 extends to the bottom of one of the armrests 5 and moves downward due to the downward swing of the armrest 5.

[0024] Specifically, a rubber sheet 10 is fixedly connected to the bottom.

[0025] Specifically, the supporting moving assembly includes supporting columns 2 fixedly connected to the four corners of the bottom of the motor box 3 , and the supporting columns 2 are movably connected with moving wheels 1 .

[0026] Specifically, a pedal for the patient's feet to be placed is also provided on the second movable plate 403 , and the pedal moves along with the second movable plate 403 .

[0027] Working principle: When using the utility model, the patient sits on the moving assembly 4. When it is necessary to move to the next bed, the motor box 3 can be controlled to drive the screw rod 405 to rotate and drive the driven block 408 and the first moving plate 401 to move to one side. During the movement, the motor 404 is also rotating, and the patient can be driven to make an arc operation during the movement until the patient is driven to rotate ninety degrees in the sitting direction and placed next to the bed. The whole process does not require medical staff to carry it, saving manpower and material resources, and the operation is convenient and stable. Then, the moving assembly 4 is used to move to one side. The patient's hand can be supported on one of the swingable armrests 5, and the armrest 5 can be pressed downward until the transmission rod 7 is pressed downward, and the rectangular friction block 9 is pressed downward by the transmission rod 7 until the rubber sheet 10 contacts the ground, which can increase the friction and offset the lateral force of the motor box 3 moving to one side. The rectangular friction block 9 is rectangular, which can also prevent the center of gravity from moving and causing the utility model to tilt. Because the tilting is an arc-shaped rotation, the rectangular contact between the rectangular friction block 9 and the ground will limit the tilting force, making the entire structure more stable and safe.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A wheelchair seat cushion getting in and out of bed mechanism, comprising a motor box (3), characterized in that: Supporting moving components are arranged at the four corners of the bottom of the motor box (3); a backrest (6) is fixedly connected to the rear side of the motor box (3); and a moving component (4) is transmission-connected to the upper side of the motor box (3); The moving assembly (4) comprises at least one slide groove (406) provided on the motor box (3); a lead screw (405) drivingly connected to the motor box (3) is provided inside the slide groove (406); a driven block (408) is threadedly connected to the lead screw (405); a first moving plate (401) is fixedly connected to the driven block (408); a second moving plate (403) is slidably provided on the first moving plate (401); a motor (404) is slidably provided on the arc-shaped slide groove (402); the second moving plate (403) is fixedly connected to a transmission shaft of the motor (404); and at least one arc-shaped slide groove (402) is further provided on the first moving plate (401), and the center of the arc-shaped slide groove (402) coincides with the transmission shaft of the motor (404).

2. A wheelchair seat cushion getting in and out of bed mechanism according to claim 1, characterized in that: The bottom of the second movable plate (403) is fixedly connected with an arc-shaped sliding block (407), and the arc-shaped sliding block (407) is slidably connected to the arc-shaped sliding groove (402).

3. The wheelchair seat cushion getting in and out of bed mechanism according to claim 1, characterized in that: Slide grooves (406) are provided on both sides of the handrail (5), and one of the slide grooves (406) can swing downward.

4. A wheelchair seat cushion getting in and out of bed mechanism according to claim 3, characterized in that: A transmission rod (7) is slidably provided on one side of the motor box (3); the bottom of the transmission rod (7) penetrates the motor box (3) and extends to the bottom of the motor box (3) and is fixedly connected to a rectangular friction block (9); a resilient telescopic rod (8) is fixedly provided on the rectangular friction block (9); the top of the resilient telescopic rod (8) is fixedly connected to the motor box (3); the top of the transmission rod (7) extends to the bottom of one of the armrests (5) and moves downward when the armrest (5) swings downward.

5. The wheelchair seat cushion getting in and out of bed mechanism according to claim 4, characterized in that: The bottom is fixedly connected with a rubber sheet (10).

6. The wheelchair seat cushion getting in and out of bed mechanism according to claim 1, characterized in that: The supporting moving assembly comprises supporting columns (2) fixedly connected to the four corners of the bottom of the motor box (3), and the supporting columns (2) are movably connected to moving wheels (1).

7. The wheelchair seat cushion getting in and out of bed mechanism according to claim 1, characterized in that: The second movable plate (403) is also provided with a pedal for the patient's feet to be placed on, and the pedal moves along with the second movable plate (403).

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