Non-magnetic magnesium-aluminum alloy wheelchair with backward inclination prevention function

Abstract

The utility model discloses a non-magnetic magnesium-aluminum alloy wheelchair with a backward tilting prevention function. The non-magnetic magnesium-aluminum alloy wheelchair comprises a frame, driving wheels, driven front wheels, an X supporting frame, a seasonal brake, a cushion, a folding backrest, armrests, handles and a tilting prevention device. The frame comprises a wheelchair seat, a left large frame and a right large frame; the X support frame is mounted below a wheelchair seat on the frame, is formed by two support strips which are arranged in an X-shaped crossing manner, and is used for connecting the left large frame and the right large frame and providing support; the anti-tilting devices are arranged at the left end and the right end of the inner side of the driving wheel and comprise supporting rods and supporting pulleys; the rear end of the supporting rod inclines downwards, and the rear end of the supporting rod is connected with a supporting pulley. The non-magnetic magnesium-aluminum alloy wheelchair with the backward inclination prevention function is simple and reasonable in structural design and stable and firm in structure; safety and reliability are achieved, backward inclination can be prevented, and slope passing stability is good; impact resistance, good toughness, high bearing capacity, light weight, foldability and convenience in carrying are realized; and the device can directly enter a nuclear magnetic resonance chamber and is suitable for various occasions.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to a non-magnetic magnesium-aluminum alloy wheelchair with an anti-tilt function. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is an important rehabilitation tool. It is an important means of transportation for the wounded, sick, and disabled for home rehabilitation, turnover transportation, medical treatment, and outdoor activities. A wheelchair not only meets the transportation needs of the physically disabled and people with limited mobility, but more importantly, it makes it easier for family members to move and care for the patients, allowing the patients to exercise and participate in social activities with the help of wheelchairs.

[0003] At present, ordinary wheelchairs on the market are generally composed of four parts: wheelchair frame, wheels, brake device and seat, including wheelchair body, pedal assembly and wheelchair belt. Although this device is helpful and convenient for patients to a certain extent. When the accompanying personnel push the above wheelchair, if the ground is slippery, the accompanying personnel are prone to slip, and at the same time, the wheelchair will tilt backward, causing the patient to fall. In addition, there are many slopes in hospitals and public places outside. When the wheelchair passes the slope in daily life, the two small front wheels are easy to be suspended, thereby reducing the overall stability of the wheelchair and causing it to tilt backward and fall. Therefore, for patients, the above wheelchair lacks certain backward protection devices.

[0004] Moreover, most of the wheelchairs in the prior art are made of magnetic metal materials. Since such materials have strong magnetism, they cannot enter special places such as MRI examination rooms in hospitals during use.

[0005] In view of this, the present application provides a non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function, which is safe and reliable, can prevent tilt, and has good stability when going over slopes; it can also directly enter the magnetic resonance imaging room, and a wheelchair that can adapt to a variety of occasions is very important. Utility Model Content

[0006] The purpose of the utility model is to provide a non-magnetic magnesium-aluminum alloy wheelchair with an anti-tilt function, which has a simple and reasonable structural design, a stable and firm structure, is safe and reliable, can prevent tilting, and has good stability when going over slopes; and can directly enter the magnetic resonance imaging room. A wheelchair that can adapt to a variety of occasions is very important.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] A non-magnetic magnesium-aluminum alloy wheelchair with an anti-tilt function comprises a folding back mechanism, a back bag, a driving wheel, an anti-tilt device, a seasonal brake, a frame, a universal wheel, a leg pad, a foot pedal, an X-support frame, a skirt board, a seat cushion, an armrest, a back cushion and a push handle.

[0009] The frame includes a wheelchair seat, a left large frame, and a right large frame;

[0010] The X-support frame is installed below the wheelchair seat on the frame. It is composed of two support bars arranged in an X-shape. Its main function is to connect the left and right large frames (left large frame and right large frame) and provide support. The backrest folding mechanism is installed on the two backrest pipes on the rear sides of the left and right large frames of the wheelchair. The backrest reinforcement mechanism is installed between the left and right push handles of the wheelchair. The handrails are installed on both sides of the frame. The anti-tilt device is arranged at the left and right ends of the inner side of the driving wheel, and includes a support rod and a pulley.

[0011] The double-support X-shaped support frame adopted by the wheelchair of the utility model adopts a hinged connection method, so that the wheelchair can be conveniently folded, the structure is more stable, and the height of the armrests is more appropriate.

[0012] The main function of the folding back mechanism is to fold the backrest to reduce the volume of the whole vehicle after folding, which is convenient for transportation and storage. The folding back mechanism is made of non-magnetic magnesium-aluminum alloy material. Compared with iron material, the outstanding advantage is that iron material is bulky, has poor corrosion resistance, short service life, and cannot enter the non-magnetic resonance room; while the non-magnetic magnesium-aluminum alloy material is light, has a long service life, is corrosion-resistant, and can enter the non-magnetic resonance room.

[0013] The backrest reinforcement mechanism is made of non-magnetic magnesium-aluminum alloy and reinforced nylon, with a folding mechanism in the middle. Its main function is to support the left and right backrest tubes horizontally to prevent the backrest tubes from tilting inwards, thereby improving the overall strength of the wheelchair frame, especially for wheelchairs with adjustable backrests, and at the same time improving the riding comfort.

[0014] The armrests are installed on both sides of the frame and are liftable armrests with ergonomic design for easy use, adjustment of suitable angles and ease of movement up and down.

[0015] The anti-roll device is located at the double supporting wheels at the left and right ends of the inner side of the driving wheel and is connected under the X-support frame. Compared with wheelchairs on the market, wheelchairs on the market generally do not have double supporting wheels located at the left and right ends of the inner side of the large wheel. Therefore, in special places, such as when passing a slope, the front wheels of a general wheelchair are easy to be suspended in the air, which will correspondingly reduce the stability of the wheelchair and cause a fall; the anti-roll device added by the utility model reduces this risk very well, that is, when passing a slope, even if the front wheels are suspended in the air, the supporting pulley of the anti-roll device is close to the ground, which will provide a supporting force to the rear, increase the grip of the wheelchair, and reduce the occurrence of backward tilting and falling.

[0016] Beneficial effects of the utility model:

[0017] Its structural design is simple and reasonable, the structure is stable and firm; it is safe and reliable, can prevent backward tilt, and has good stability when going over slopes; it has good impact resistance and toughness, high load-bearing capacity, light weight, and can be folded for easy carrying; it can also be directly placed in the MRI room and is suitable for a variety of occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a non-magnetic magnesium-aluminum alloy wheelchair with an anti-tilt function according to the utility model;

[0019] Figure 2 This is a structural schematic diagram of a non-magnetic magnesium-aluminum alloy wheelchair with an anti-tilt function according to the utility model (from another perspective). DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] like Figure 1 , 2 As shown, a non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function includes a frame 1, a driving wheel 2, an anti-tilt device 3, an X-support frame 4, a seasonal brake 5, a seat cushion 6, a folding backrest 7, a handle 8, an armrest 9, and a driven front wheel 10;

[0022] The frame 1 includes a wheelchair seat 11, a left frame 12, and a right frame 13;

[0023] The driving wheels 2 are two respectively provided on the left and right sides of the frame 1;

[0024] The X support frame 4 is installed below the wheelchair seat 11 on the frame 1. It is composed of two support bars arranged in an X shape. Its main function is to connect the left and right large frames (left large frame 12 and right large frame 13) and provide support.

[0025] The folding backrest 7 is mounted on two backrest tubes 14 at the rear sides of the left and right large frames 13 of the wheelchair;

[0026] The left and right ends of the backrest reinforcement beam are respectively connected to the backrest tube 14 .

[0027] The armrests 9 are installed on both sides of the frame 1 .

[0028] The anti-roll device 3 is arranged at the left and right ends of the inner side of the driving wheel 2, and includes a support rod 31 and a support pulley 32; the front end of the support rod 31 is fixed on the frame 1, and the rear end is tilted downward, and the rear end is connected to the support pulley 32.

[0029] The supporting pulley 32 is higher than the bottom of the driving wheel 2; the line connecting the center of the supporting pulley 32 and the center of the driving wheel 2 forms an angle of 30 to 60 degrees with the vertical direction.

[0030] The main function of the folding backrest 7 is to fold the backrest to reduce the volume of the vehicle after folding, which is convenient for transportation and storage. The folding backrest 7 is made of non-magnetic magnesium-aluminum alloy material. Compared with iron material, the iron material is bulky, has poor corrosion resistance, has a short service life, and cannot enter the non-magnetic resonance room; while the non-magnetic magnesium-aluminum alloy material is light, has a long service life, is corrosion-resistant, and can enter the non-magnetic resonance room.

[0031] The backrest reinforcement beam is made of non-magnetic magnesium-aluminum alloy and reinforced nylon, with a folding mechanism in the middle. Its main function is to support the left and right backrest tubes 14 laterally, prevent the backrest tubes 14 from tilting inward, and improve the overall strength of the wheelchair frame 1, especially for wheelchairs with adjustable backs, while improving riding comfort.

[0032] The armrests 9 are installed on both sides of the frame 1 and are liftable armrests 9 with ergonomic design, which are convenient to use and can be adjusted to a suitable angle and moved up and down.

[0033] Compared with wheelchairs on the market, wheelchairs on the market generally do not have the supporting pulleys 32 located at the left and right ends of the inner side of the large wheel. Therefore, in special places, such as when passing a slope, the front wheels of a general wheelchair are easily suspended in the air, which will correspondingly reduce the stability of the wheelchair and cause a fall. The anti-tilt device 3 added in the utility model reduces this risk very well, that is, when passing a slope, even if the front wheels are suspended in the air, the supporting pulleys 32 of the anti-tilt device 3 are close to the ground, which will provide a supporting force to the rear, increase the grip of the wheelchair, and reduce the occurrence of backward tilting and falling.

[0034] The middle section of the seasonal brake 5 is hinged to the frame 1, and the bottom end thereof is connected to the brake pad.

[0035] Preferably, the driven front wheels 10 are arranged at the left and right ends of the front side of the frame 1 .

[0036] Optionally, the top end of the backrest tube 14 is connected to the handle 8 .

[0037] Preferably, the frame 1 and the backrest reinforcement beam are made of non-magnetic magnesium-aluminum alloy.

[0038] Optionally, the seasonal brake 5 is arranged below the front end of the handrail 9.

[0039] Optionally, a foot pedal 15 is provided at the front end of the frame 1 .

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function, comprising a frame, a driving wheel, a driven front wheel, an X-support frame, a seasonal brake, a seat cushion, a folding backrest, an armrest, and a handle, characterized in that: It also includes an anti-roll device; The frame includes a wheelchair seat, a left large frame, and a right large frame; The X support frame is installed below the wheelchair seat on the frame, and is composed of two support bars arranged in an X-shape, and is used to connect the left large frame and the right large frame and provide support; The folding backrest is installed on two backrest tubes at the rear sides of the left and right large frames of the wheelchair; The armrests are installed on both sides of the frame; The anti-tilt device is arranged at the left and right ends of the inner side of the driving wheel, and comprises a support rod and a supporting pulley; the rear end of the support rod is tilted downward, and the rear end is connected to the supporting pulley.

2. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to claim 1, characterized in that: It also includes a backrest reinforcement beam; The left and right ends of the backrest reinforcement beam are respectively connected to the backrest tubes.

3. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to claim 2, characterized in that: It also includes a seat cushion, which is arranged on the wheelchair seat.

4. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to any one of claims 1 to 3, characterized in that: The supporting pulley is higher than the bottom of the driving wheel; the line connecting the center of the supporting pulley and the center of the driving wheel forms an angle of 30 to 60 degrees with the vertical direction.

5. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to claim 4, characterized in that: The seasonal brake middle section is hinged to the vehicle frame, and the bottom end thereof is connected to the brake pad.

6. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to claim 5, characterized in that: The vehicle frame and backrest reinforcement beam are made of non-magnetic magnesium-aluminum alloy.

7. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to claim 6, characterized in that: The seasonal brake is arranged below the front end of the handrail.

8. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to claim 6, characterized in that: A foot pedal is arranged at the front end of the frame.

9. The non-magnetic magnesium-aluminum alloy wheelchair with anti-tilt function according to claim 6, characterized in that: The top end of the backrest tube is connected to a handle.

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