Improved wheelchair

Abstract

The utility model discloses an improved wheelchair, which belongs to the technical field of wheelchairs and comprises a side plate, chair legs fixedly connected to the lower surface of the side plate, a push rod fixedly connected to one side of the side plate, a back plate adjusting mechanism arranged in an inner cavity of one side of the side plate, and a seat plate adjusting mechanism arranged on one side of the side plate. Then the back plate is rotated backwards to be adjusted to a proper inclination angle, then the second gear block is moved outwards to leave the second gear, then the seat plate is rotated upwards to be adjusted to a proper inclination angle, the front portion of the seat plate of the wheelchair is lifted to ensure that the hip position of the patient leans backwards, meanwhile, the back plate inclines backwards, and the patient can lean against the back plate backwards; new injury caused by the fact that part of patients which cannot keep normal sitting postures continuously slip off from the wheelchair is avoided, and the safety of the wheelchair is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, and more particularly to an improved wheelchair. Background Art

[0002] A wheelchair is an assistive mobility tool designed for people with limited mobility. It is an indispensable tool in the hospital environment and is often used to assist patients in transferring safely and smoothly between different areas. This is especially true for patients with limited mobility, those recovering from surgery, those who have fractures or joint replacements, or the elderly, the weak, or the disabled. Wheelchairs can effectively reduce their physical burden.

[0003] Existing wheelchairs are composed of a seat cushion, backboard, armrests, footrests and wheels. When in use, the wheelchair is pushed forward or backward manually, and the direction is controlled by adjusting the grip position and strength. This can improve the work efficiency of medical staff, reduce delays and manpower consumption caused by transporting patients, and optimize hospital resource allocation.

[0004] In actual use of existing technology, wheelchairs are used to transport patients with various mobility difficulties. However, some patients have poor waist strength and find it difficult to maintain a normal sitting posture. They are prone to slipping off the wheelchair, causing them to fall to the ground and cause new injuries. Therefore, an improved wheelchair is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the present invention provides an improved wheelchair, which moves tooth block one outward to leave gear one, then rotates the back panel backward to adjust it to a suitable tilt angle, then moves tooth block two outward to leave gear two, and then rotates the adjustment seat upward to adjust it to a suitable tilt angle. By raising the front of the wheelchair seat, it ensures that the patient's buttocks are leaning backward, and at the same time the back panel is tilted backward so that the patient can lean back on the back panel, thereby preventing some patients who are unable to maintain a normal sitting posture from slipping off the wheelchair and causing new injuries, thereby improving the safety of the wheelchair.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] The cam is fixedly mounted on the side panel and the adjusting device is mounted on a link member which is cooperatively connected to the seat frame.

[0010] Furthermore, a brake universal wheel is provided at the lower end of the chair leg, and a cross bar is fixedly connected to the outer surface of the chair leg.

[0011] Furthermore, a rubber sleeve is fixedly connected to the outer surface of the push rod, and an armrest is fixedly connected to the upper surface of the side panel.

[0012] Furthermore, the movable block is at one end of the inner cavity of the side plate, and one side of the tooth block is fixedly connected to a telescopic rod.

[0013] Furthermore, one end of the telescopic rod is fixedly connected to a mounting bracket, one side of the mounting bracket is fixedly connected to the movable seat, a spring is sleeved on the outer surface of the telescopic rod, and both ends of the spring are fixedly connected to a gear block and a movable seat respectively.

[0014] Furthermore, one side of the second tooth block is fixedly connected to the second telescopic rod, one end of the second telescopic rod is fixedly connected to the second mounting frame, one side of the second mounting frame is fixedly connected to the fixed seat, the outer surface of the second telescopic rod is provided with a second spring, and the two ends of the second spring are respectively fixedly connected to the fixed seat and the second tooth block.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution moves gear block 1 outward to leave gear 1, then rotates the back panel backward to adjust it to a suitable tilt angle, then moves gear block 2 outward to leave gear 2, and then rotates the seat panel upward to adjust it to a suitable tilt angle. By raising the front of the wheelchair seat panel, the patient's buttocks are ensured to lean back, and the back panel is tilted backward so that the patient can lean back on the back panel, thereby preventing some patients who cannot maintain a normal sitting posture from slipping off the wheelchair and causing new injuries, thereby improving the safety of the wheelchair.

[0018] (2) This solution moves the second tooth block outward and then rotates the seat downward to adjust it to a suitable tilt angle, so that the front end of the seat is downward. At this time, the patient's legs are put down, and then the electric push rod is started to drive the moving block, moving seat and backboard to move forward to push the patient's back, assisting the patient to stand, improving the practicality of the wheelchair, and meeting different needs during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a side view schematic diagram of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the partial structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the partial structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the partial structure of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Side panel; 101. Chair leg; 102. Brake caster; 103. Crossbar; 104. Push rod; 105. Rubber sleeve; 106. Armrest; 2. Back panel adjustment mechanism; 201. Moving seat; 202. Moving block; 203. Electric push rod; 204. Connecting rod 1; 205. Back panel; 206. Gear 1; 207. Mounting frame 1; 208. Telescopic rod 1; 209. Gear block 1; 210. Spring 1; 3. Seat adjustment mechanism; 301. Fixed seat; 302. Connecting rod 2; 303. Seat; 304. Gear 2; 305. Mounting frame 2; 306. Telescopic rod 2; 307. Gear block 2; 308. Spring 2. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Example 1

[0030] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , which is the first embodiment of the present utility model, provides an improved wheelchair, including a side panel 1, a chair leg 101 fixedly connected to the lower surface of the side panel 1, a push rod 104 fixedly connected to one side of the side panel 1, a back panel adjustment mechanism 2 provided in the inner cavity of one side of the side panel 1, and a seat panel adjustment mechanism 3 provided on one side of the side panel 1;

[0031] The back plate adjustment mechanism 2 includes an electric push rod 203 fixedly connected to the inner cavity of the side plate 1. The electric push rod 203 is fixedly connected to the moving block 202. One side of the moving block 202 is fixedly connected to the moving seat 201. The inner cavity of the moving seat 201 is rotatably connected to a connecting rod 204. The outer surface of the connecting rod 204 is fixedly connected to the back plate 205. The two ends of the connecting rod 204 are fixedly connected to a gear 206. The outer surface of the gear 206 is meshed with a gear block 209.

[0032] Specifically, a brake universal wheel 102 is provided at the lower end of the chair leg 101, a cross bar 103 is fixedly connected to the outer surface of the chair leg 101, a rubber sleeve 105 is fixedly connected to the outer surface of the push rod 104, an armrest 106 is fixedly connected to the upper surface of the side panel 1, a moving block 202 is at one end of the inner cavity of the side panel 1, a telescopic rod 208 is fixedly connected to one side of a tooth block 209, one end of the telescopic rod 208 is fixedly connected to a mounting frame 207, one side of the mounting frame 207 is fixedly connected to the moving seat 201, a spring 210 is sleeved on the outer surface of the telescopic rod 208, and both ends of the spring 210 are fixedly connected to the tooth block 209 and the moving seat 201 respectively.

[0033] Furthermore, the medical staff manually moves the tooth block 209 outward to squeeze the telescopic rod 208 and the spring 210. When the tooth block 209 moves outward and leaves the gear 206, the gear 206 and the connecting rod 204 lose their limits, and the back plate 205 can be rotated backward to adjust it to a suitable tilt angle. Then, the tooth block 209 is released and the elastic force of the spring 210 itself drives the tooth block 209 to automatically move inward to fix the tooth block 209 after rotation and ensure that the back plate 205 is adjusted to a suitable tilt angle. The stability of the board 205 is improved. The backboard 205 tilts backward and the patient can lean back on the backboard 205 to prevent some patients who are unable to maintain a normal sitting posture from slipping off the wheelchair and causing new injuries, thereby improving the safety of the wheelchair. Medical staff can push the wheelchair by holding the push rod 104 and move the brake universal wheel 102 to transport the patient to a designated location. The patient's hand can be placed on the armrest 106, and the electric push rod 203 is started to drive the moving block 202, the moving seat 201 and the backboard 205 to move forward to push the patient's back.

[0034] Example 2

[0035] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , which is the second embodiment of the present utility model, and is based on the previous embodiment. The seat adjustment mechanism 3 includes a fixing base 301 fixedly connected to one side of the side plate 1. The fixing base 301 has a second connecting rod 302 rotatably connected to its inner cavity. The outer surface of the second connecting rod 302 is fixedly connected to the seat 303. Both ends of the second connecting rod 302 are fixedly connected to a second gear 304. The outer surface of the second gear 304 is meshed with a second gear block 307.

[0036] Specifically, one side of the second tooth block 307 is fixedly connected to the second telescopic rod 306, one end of the second telescopic rod 306 is fixedly connected to the second mounting frame 305, one side of the second mounting frame 305 is fixedly connected to the fixed seat 301, and the outer surface of the second telescopic rod 306 is provided with a second spring 308, and the two ends of the second spring 308 are respectively fixedly connected to the fixed seat 301 and the second tooth block 307.

[0037] After the wheelchair is in a state of being tilted, the front end of the wheelchair seat 303 is moved downwards, and the patient's buttocks are ensured to be positioned backwards by raising the front portion of the wheelchair seat 303. The tooth block 2 307 is moved outwards to make the gear 2 304 lose its fixed limit. Then, the wheelchair seat 303 is rotated downwards to adjust it to a suitable tilt angle, so that the front end of the wheelchair seat 303 is downwards, and the patient's legs are put down.

[0038] Working principle: Medical personnel manually move tooth block 209 outward to squeeze telescopic rod 208 and spring 210. When tooth block 209 moves outward and leaves gear 206, gear 206 and connecting rod 204 lose their limit, and the back plate 205 can be rotated backward to adjust it to a suitable tilt angle. Then, the tooth block 209 is released, and the elastic force of spring 210 drives the tooth block 209 to automatically move inward to fix the rotation and adjustment of the tooth block 209. , ensure the stability of the adjusted back plate 205, then manually move the gear block 2 307 outward to squeeze the telescopic rod 2 306 and the spring 2 308. When the gear block 2 307 moves outward and leaves the gear 2 304, the gear 2 304 and the connecting rod 2 302 lose their fixed limit, and the adjustment seat 303 can be rotated upward to adjust it to a suitable tilt angle, and the elastic force of the spring 2 308 itself automatically drives the gear block 2 307 to move inward to fix the adjusted gear 2 304. , ensure the stability of the adjusted seat plate 303, by raising the front portion of the wheelchair seat plate 303 to ensure that the patient's hip position leans backward, and at the same time, the back plate 205 tilts backward and the patient can lean back on the back plate 205, preventing some patients who are unable to maintain a normal sitting posture from slipping off the wheelchair and causing new injuries, thereby improving the safety of the wheelchair, and medical staff can push the wheelchair by holding the push rod 104 to move the brake universal wheel 102 to transport the patient to the designated location, and the patient's hands can be placed on the armrests 106. When it is necessary to assist the patient to stand, the gear block 207 is moved outward so that the gear 2 304 loses its fixed limit, and then the seat plate 303 is rotated downward to adjust it to a suitable tilt angle, so that the front end of the seat plate 303 is downward, and the patient's legs are put down, and then the electric push rod 203 is started to drive the moving block 202, the moving seat 201 and the back plate 205 to move forward to push the patient's back, assisting the patient to stand, improving the practicality of the wheelchair, and meeting different needs during use.

[0039] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. An improved wheelchair, comprising side panels (1), characterized in that: The lower surface of the side panel (1) is fixedly connected to a chair leg (101), one side of the side panel (1) is fixedly connected to a push rod (104), an inner cavity of one side of the side panel (1) is provided with a back panel adjustment mechanism (2), and one side of the side panel (1) is provided with a seat panel adjustment mechanism (3); The back plate adjustment mechanism (2) comprises an electric push rod (203) fixedly connected to the inner cavity of the side plate (1), the electric push rod (203) being fixedly connected to a moving block (202), one side of the moving block (202) being fixedly connected to a moving seat (201), the inner cavity of the moving seat (201) being rotatably connected to a connecting rod (204), the outer surface of the connecting rod (204) being fixedly connected to a back plate (205), the two ends of the connecting rod (204) being fixedly connected to a gear (206), the outer surface of the gear (206) being meshingly connected to a tooth block (209); The seat adjustment mechanism (3) comprises a fixed seat (301) fixedly connected to one side of the side plate (1); a second connecting rod (302) is rotatably connected to the inner cavity of the fixed seat (301); the outer surface of the second connecting rod (302) is fixedly connected to the seat (303); two ends of the second connecting rod (302) are fixedly connected to a second gear (304); the outer surface of the second gear (304) is meshedly connected to a second gear block (307).

2. The improved wheelchair according to claim 1, characterized in that: The lower ends of the chair legs (101) are provided with brake universal wheels (102), and the outer surfaces of the chair legs (101) are fixedly connected with cross bars (103).

3. The improved wheelchair according to claim 2, characterized in that: The outer surface of the push rod (104) is fixedly connected to a rubber sleeve (105), and the upper surface of the side plate (1) is fixedly connected to an armrest (106).

4. The improved wheelchair according to claim 1, characterized in that: The moving block (202) is at one end of the inner cavity of the side plate (1), and one side of the tooth block (209) is fixedly connected to a telescopic rod (208).

5. The improved wheelchair according to claim 4, characterized in that: One end of the telescopic rod (208) is fixedly connected to a mounting frame (207), one side of the mounting frame (207) is fixedly connected to the movable seat (201), and a spring (210) is sleeved on the outer surface of the telescopic rod (208), and the two ends of the spring (210) are fixedly connected to the tooth block (209) and the movable seat (201) respectively.

6. The improved wheelchair according to claim 1, characterized in that: One side of the second tooth block (307) is fixedly connected to the second telescopic rod (306), one end of the second telescopic rod (306) is fixedly connected to the second mounting frame (305), one side of the second mounting frame (305) is fixedly connected to the fixed seat (301), and the outer surface of the second telescopic rod (306) is provided with a second spring (308), and the two ends of the second spring (308) are fixedly connected to the fixed seat (301) and the second tooth block (307) respectively.

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