A power-assisted wheel device

Abstract

The present invention relates to the field of auxiliary wheels and provides a power-assisted wheel device, comprising: a support frame; a power assembly mounted on the support frame, the power assembly being provided with a motor, the motor driving the power assembly to move up and down relative to the support frame; a roller assembly mounted on the power mechanism, the roller assembly being provided with gas springs on both sides. Compared with the prior art, the present invention has the following main advantages: the telescopic motor used in the device can easily lift a hospital bed or wheelchair, reducing the difficulty of pushing the hospital bed or wheelchair for medical staff, thereby reducing the workload of medical staff; the gas spring provided in the present invention can effectively reduce shock and buffer the device, thereby improving the comfort of people riding in the hospital bed or wheelchair equipped with the device; the device has a simple structure and is easy to install, and is highly practical.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary wheels, in particular to a power-assisted wheel device. Background Art

[0002] A hospital bed generally refers to a nursing bed, which is designed according to the patient's treatment needs and bedridden lifestyle. It allows family members to accompany the patient and has multiple nursing functions and operation buttons. It uses an insulated and safe bed, such as weight monitoring, back-lifting for dining, intelligent turning over, prevention of bedsores, negative pressure bedwetting alarm monitoring, mobile transportation, rest, rehabilitation (passive movement, standing), drug administration and infusion, etc. Rehabilitation beds can be used alone or in conjunction with treatment or rehabilitation equipment.

[0003] Currently, transport beds or wheelchairs used for medical assistance require the combined efforts of medical staff to propel them forward. Existing electric beds and wheelchairs are complex and expensive to manufacture, making widespread adoption difficult. Manual beds and wheelchairs can be extremely challenging to push over uneven surfaces or uphill, sometimes requiring additional assistance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a power-assisted wheel device in view of the current status of the existing technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: to propose a power-assisted wheel device comprising:

[0006] Support frame;

[0007] A power assembly is mounted on the support frame, and a motor is provided on the power assembly, and the motor drives the power assembly to move up and down relative to the support frame;

[0008] A roller assembly is installed on the power mechanism, and gas springs are provided on both sides of the roller assembly.

[0009] In the above-mentioned power-assisted wheel device, the support frame includes:

[0010] Support plate;

[0011] A pressing plate, which is arranged on the supporting plate, wherein the pressing plate and the supporting plate are combined to form a sliding groove;

[0012] The mounting plates are mounted on both sides of the supporting plate.

[0013] In the above-mentioned power-assisted wheel device, the power assembly further includes:

[0014] a slide plate, slidably mounted in the slide groove;

[0015] an upper fixing block, which is mounted on the support plate, and the upper end of the motor is mounted on the upper fixing block;

[0016] A lower fixing block is mounted on the slide plate, and the lower end of the motor is mounted on the lower fixing plate.

[0017] In the above-mentioned power-assisted wheel device, the roller assembly further includes:

[0018] a support block mounted on the slide;

[0019] a connecting block mounted on the lower portion of the supporting block;

[0020] A roller is mounted on the lower portion of the connecting block.

[0021] In the above-mentioned power-assisted wheel device, first inclined surfaces are provided on both sides of the slide plate, and a second inclined surface is provided on the side where the pressure plate abuts against the slide plate, and the first inclined surface abuts against the second inclined surface.

[0022] In the above-mentioned power-assisted wheel device, an adjustment bar is provided on a side of the pressure plate away from the sliding groove, and the adjustment bar is used to adjust the width of the sliding groove.

[0023] In the above-mentioned power-assisted wheel device, one or more waist-shaped holes are provided on the support plate.

[0024] In the above-mentioned power-assisted wheel device, the cross-sections of the slide plate and the pressure plate are both trapezoidal.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] (1) The telescopic motor used in this device can easily lift the hospital bed or wheelchair, reducing the difficulty of pushing the hospital bed or wheelchair for medical staff, thereby reducing the workload of medical staff.

[0027] (2) The gas spring provided in the present invention can play a good role in shock absorption and buffering for the device, which improves the comfort of people riding in the hospital bed or wheelchair equipped with the device.

[0028] (3) The device has a simple structure and is easy to install, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of a power-assisted wheel device of the present invention;

[0030] Figure 2 It is a three-dimensional diagram of a support frame of a power-assisted wheel device of the present invention;

[0031] Figure 3It is a three-dimensional diagram of a power assembly of a power-assisted wheel device of the present invention;

[0032] Figure 4 It is a three-dimensional diagram of a roller assembly of a power-assisted wheel device of the present invention;

[0033] In the figure, the support frame 10, the support plate 11, the mounting plate 12, the waist-shaped hole 13, the sliding groove 14, the pressure plate 15, the second inclined surface 151, the power component 20, the motor 21, the upper fixed block 22, the lower fixed block 23, the slide plate 24, the first inclined surface 241, the adjustment bar 25, the roller assembly 30, the support block 31, the gas spring 32, the connecting block 33, and the roller 34. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0035] Currently, medical transfer beds or wheelchairs used for medical assistance require the combined efforts of medical staff to propel them forward. Over uneven terrain or uphill sections, pushing the bed or wheelchair forward can be extremely challenging, sometimes requiring additional assistance. This invention addresses these challenges by providing a power-assisted wheel device that effectively addresses these common issues with conventional beds or wheelchairs.

[0036] like Figure 1 As shown, a power-assisted wheel device of the present invention includes: a support frame 10, a power assembly 20 and a roller assembly 30.

[0037] like Figure 2 As shown, a support plate 11 is provided on the support frame 10, and mounting plates 12 are provided on both sides of the support plate 11. The mounting plates 12 can be integrally formed with the support plate 11, can be connected to the support plate 11 by welding, or can be installed on the support plate 11 by means of a connector. The support frame 10 is fixed to the bed or wheelchair via the mounting plates 12. Preferably, a waist-shaped hole 13 is provided in the middle of the support plate 11. On the one hand, the waist-shaped hole 13 reduces the weight of the support plate 11, thereby reducing the manufacturing cost of the entire power wheel device. On the other hand, the provision of the waist-shaped hole 13 can also reduce the contact area between the power assembly 20 and the support frame 10, thereby reducing the friction when the power assembly 20 and the support frame 10 slide against each other, thereby increasing the smoothness of the sliding of the power assembly 20. The waist-shaped hole 13 can be one or more. The number and size of the waist-shaped holes 13 can be determined according to the size of the support plate 11. The more waist-shaped holes 13 there are, the better, without destroying the overall strength of the support plate 11. The support frame 10 is further provided with a pressing plate 15 . Sliding grooves 14 are formed between the support frame 10 and the pressing plates 15 on both sides. The power assembly 20 is slidably installed in the sliding grooves 14 .

[0038] like Figure 1 and Figure 3 As shown, the power assembly 20 is slidably mounted on the support frame 10 , and the power assembly 20 includes: a motor 21 , an upper fixing block 22 , a lower fixing block 23 and a slide plate 24 .

[0039] The slide plate 24 is slidably installed in the sliding groove 14. Preferably, a first inclined surface 241 is provided on both sides of the slide plate 24, and a second inclined surface 151 is provided on the side where the pressure plate 15 abuts against the slide plate 24. The first inclined surface 241 and the second inclined surface 121 abut against each other. When the slide plate 24 moves up and down relative to the support plate 11, it can limit the normal movement of the slide plate 24 toward the support plate 11, thereby reducing the vibration of the power-assisted wheel device of the present invention during operation. Preferably, the cross-sections of the slide plate 24 and the pressure plate 15 are both trapezoidal. An adjustment bar 25 is provided on one side of the power assembly 20. The adjustment bar 25 is used to adjust the installation position of the pressure plate 15 on the support plate 11 in the horizontal direction. It can change the size of the sliding groove 14 in the horizontal direction, thereby adjusting the gap between the slide plate 24 and the sliding groove 14, and ultimately achieving the purpose of preventing the slide plate 24 from being stuck in the sliding groove. The lower fixed block 23 is installed on the slide plate 24, the lower end of the motor 21 is installed on the lower fixed block 24, the upper end of the motor 21 is installed on the upper fixed block 22, and the upper fixed block 22 is installed on the support plate 11. In this way, when the motor 21 performs a telescopic movement, it can drive the slide plate 24 to move up and down relative to the support plate 11.

[0040] like Figure 1 and Figure 4 As shown, the roller assembly 30 is mounted on the power assembly 20. The roller assembly 30 is provided with a support block 31. One side of the support block 31 is fixed to the slide 24. When the slide 24 moves up and down relative to the support plate 11 under the drive of the motor 21, the support block 31 can drive the entire roller assembly 30 to move up and down relative to the support plate 11. The upper portion of the support block 31 is provided with a gas spring 32, and the lower portion of the support block 31 is provided with a connecting block 33. The other end of the gas spring 32 connected to the support block 31 is mounted on the connecting block 33. The function of the gas spring 32 is to cushion the up and down vibration of the bed or wheelchair when it is pushed on an uneven road surface, thereby increasing the stability and comfort of the bed or wheelchair during travel. The lower portion of the connecting block 33 is provided with a roller 34, which can drive the entire power-assisted wheel assembly.

[0041] When using a hospital bed equipped with the power-assisted wheel device of the present invention, the motor 21 drives the power assembly 20 to move downward relative to the support plate 11 to lower the roller 34. At this time, with the help of the roller 34, medical staff can easily push the bed. When encountering uneven roads, the gas spring 32 can play a good buffering role. When the bed does not need to be pushed, the motor 21 drives the power assembly 20 upward relative to the support plate 11. At this time, the roller 34 is lifted and stored at the lower end of the bed.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them with similar methods without departing from the scope defined by the spirit of the present invention.

Claims

1. A power-assisted wheel device, characterized in that: include: Support frame; A power assembly is mounted on the support frame, and a motor is provided on the power assembly, and the motor drives the power assembly to move up and down relative to the support frame; A roller assembly is mounted on the power assembly, and gas springs are provided on both sides of the roller assembly; The support frame includes: a support plate; a pressure plate, which is arranged on the support plate, and the pressure plate and the support plate are surrounded to form a sliding groove; a mounting plate, which is mounted on both sides of the support plate; The power assembly further includes: a slide plate, which is slidably mounted in the slide groove; an upper fixed block, which is mounted on the support plate, and the upper end of the motor is mounted on the upper fixed block; a lower fixed block, which is mounted on the slide plate, and the lower end of the motor is mounted on the lower fixed block; The roller assembly further includes: a support block mounted on the slide; a connecting block mounted on the lower portion of the support block; and a roller mounted on the lower portion of the connecting block. The motor drives the power assembly downward relative to the support plate to lower the rollers. At this time, the bed can be pushed with the help of the rollers. When encountering uneven roads, the gas springs act as a buffer. When the bed does not need to be pushed, the motor drives the power assembly upward relative to the support plate. At this time, the rollers are raised and stored at the bottom of the bed. An adjustment bar is provided on one side of the pressing plate away from the sliding slot, and the adjustment bar is used to adjust the width of the sliding slot; One or more waist-shaped holes are provided on the support plate, and the waist-shaped holes are used to reduce the contact area between the power assembly and the support frame, thereby reducing the friction force when the power assembly and the support frame slide against each other.

2. A power-assisted wheel device according to claim 1, characterized in that: The two sides of the slide plate are provided with first inclined surfaces, the side of the pressing plate abutting against the slide plate is provided with a second inclined surface, and the first inclined surface abuts against the second inclined surface.

3. A power-assisted wheel device according to claim 1, characterized in that: The cross sections of the slide plate and the pressing plate are both trapezoidal.

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