An adjustable wheelchair

Abstract

The utility model relates to an adjustable wheelchair, include: wheelchair frame, seat rest and two trestles, the wheelchair frame includes main body support and is fixedly connected with two mounting seat right side of main body support, two trestles are rotatory installation in two mounting seat respectively, the seat rest is installed on the main body support, the lower surface four corners of main body support all are fixedly connected with stand, the trestle rotatory installation is in mounting seat, the adjusting assembly is used for making the trestle rotate, the utility model discloses when the patient goes out and needs to lift when checking leg and foot, through adjusting assembly and the support plate of movable rod rotate to horizontal state, the leg of patient keeps lifting under the support of the support plate on movable rod, compared with the way that adopts crutch pad under the leg, the utility model is more comfortable through the support mode of movable rod and support plate, and after using, through adjusting assembly drive movable rod and support plate reset and store up.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology, and more specifically, to an adjustable wheelchair. Background Technology

[0002] Wheelchairs are an important tool for rehabilitation. They are not only a means of transportation for people with limb disabilities and limited mobility, but more importantly, they enable them to exercise and participate in social activities. Orthopedic patients, especially those who have undergone meniscus repair or ligament injury surgery, need to wear braces for three months after surgery. They also routinely need to go out for X-ray follow-up examinations. However, ordinary wheelchairs consist of a frame, wheels, seat, backrest, and leg support. Since the leg support is fixed, it is inconvenient for patients to lift their legs. Although existing tools can be used, such as placing the patient's cane across the wheelchair to support their legs while seated, it is uncomfortable and inconvenient to use. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an adjustable wheelchair with the following advantages.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an adjustable wheelchair, comprising: a wheelchair frame, a seat, and two footrests; the wheelchair frame includes a main support and two mounting seats fixedly connected to the right side of the main support, and the two footrests are rotatably mounted on the two mounting seats respectively; the seat is mounted on the main support; columns are fixedly connected to the four corners of the lower surface of the main support; the bottom ends of the two left-side columns are fixedly mounted with the same connecting shaft, and two wheels are rotatably mounted at both ends of the connecting shaft; wheels are rotatably mounted at the bottom ends of the two right-side columns; and adjustment components for footrest rotation are provided on the outer surfaces of the two right-side columns.

[0005] Optionally, the tripod includes: a movable rod, a support plate, a foot pedal, and a first pin; the top end of the movable rod is rotatably connected to the mounting base via the first pin; the support plate is fixedly connected to the movable rod, and the foot pedal is installed at the bottom end of the movable rod.

[0006] Optionally, a fixed box is fixedly connected to the bottom end of the movable rod; a rotating shaft is fixedly connected to the left side of the foot pedal; one end of the rotating shaft away from the foot pedal extends into the interior of the fixed box, and the end of the rotating shaft away from the foot pedal is rotatably connected to the fixed box via a bearing; a worm gear is rotatably connected to the fixed box, and a worm wheel meshing with the worm gear is provided inside the fixed box; the worm wheel is fixedly connected to the rotating shaft; the other end of the worm gear extends to the outside of the fixed box and is fixedly connected to a handle; and the worm gear is rotatably connected to the fixed box via a bearing.

[0007] Optionally, the adjustment assembly includes: a movable sleeve, a pull rod, and a connecting rod; the movable sleeve is slidably fitted onto the outer surface of the right column; one end of the connecting rod is rotatably connected to the movable sleeve via a second pin; the other end of the connecting rod is rotatably connected to the movable sleeve via a third pin; a groove is provided on the left side of the movable sleeve; the pull rod is slidably connected inside the groove via a telescopic rod; a spring is fixedly installed between the top end of the pull rod and the inner wall of the groove; multiple positioning slots are provided on the left side of each of the two right columns; a positioning block corresponding to the positioning slot is fixedly connected to the bottom end of the pull rod.

[0008] Optionally, the number of wheels is four; the diameter of the two wheels on the left is larger than the diameter of the two wheels on the right.

[0009] Optionally, the seat includes a backrest and a seat cushion; the backrest and seat cushion are respectively installed on the left side and bottom of the main support.

[0010] Optionally, two handles are fixedly connected to the top left side of the main support.

[0011] In summary, when a patient needs to lift their legs and feet for an examination outside, the adjustable component rotates the movable rod and support plate to a horizontal position. The patient's legs remain raised under the support of the support plate on the movable rod. Compared to using a cane to support the legs, the support method of the movable rod and support plate is more comfortable and convenient to use. Moreover, after use, the adjustable component drives the movable rod and support plate to return to their original position and be stored away. Attached Figure Description

[0012] Figure 1 This is a three-dimensional front view of the present invention;

[0013] Figure 2 This is the utility model Figure 1 Enlarged view of a local structure in the image;

[0014] Figure 3 This is a cross-sectional schematic diagram of the adjustment component of this utility model;

[0015] Figure 4 This is a cross-sectional schematic diagram of the fixing box of this utility model.

[0016] In the diagram: 1. Wheelchair frame; 2. Wheels; 3. Seat back; 4. Legs; 5. Main support frame; 6. Mounting base; 7. Column; 8. Adjustment assembly; 9. Handle; 301. Backrest; 302. Seat cushion; 401. Movable rod; 402. Support plate; 403. Foot pedal; 404. First pin; 701. Fixing box; 702. Rotating shaft; 703. Worm gear; 704. Worm; 705. Handle; 801. Movable sleeve; 802. Pull rod; 803. Connecting rod; 804. Second pin; 805. Third pin; 806. Groove; 807. Telescopic rod; 808. Spring; 809. Positioning groove; 810. Positioning block. Detailed Implementation

[0017] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0019] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] This utility model provides an adjustable wheelchair, such as Figure 1 As shown, it includes: a wheelchair frame 1, a seat back 3, and two leg supports 4; the wheelchair frame 1 includes a main support 5 and two mounting seats 6 fixedly connected to the right side of the main support 5, and the two leg supports 4 are rotatably mounted on the two mounting seats 6 respectively; the seat back 3 is mounted on the main support 5; each of the four corners of the lower surface of the main support 5 is fixedly connected to a column 7; the bottom ends of the two left column supports 7 are fixedly mounted with the same connecting shaft, and two wheels 2 are rotatably mounted on both ends of the connecting shaft; the bottom ends of the two right column supports 7 are rotatably mounted with wheels 2; the outer surfaces of the two right column supports 7 are provided with adjustment components 8 for the rotation of the leg supports 4.

[0022] Specifically, by movably setting the leg frame 4 on the mounting base 6, when the patient needs to go out for examination, the leg frame 4 can be rotated to a horizontal position by adjusting the component 8, thereby allowing the patient's legs to be raised and straightened, making it more comfortable and convenient to use. After use, the leg frame 4 can be folded up by adjusting the component 8 to maintain a regular wheelchair shape.

[0023] Furthermore, the stand 4 includes: a movable rod 401, a support plate 402, a foot pedal 403, and a first pin 404; the top end of the movable rod 401 is rotatably connected to the mounting base 6 via the first pin 404; the support plate 402 is fixedly connected to the movable rod 401, and the foot pedal 403 is installed at the bottom end of the movable rod 401.

[0024] Specifically, a sponge pad is fixedly installed on the side of the support plate 402 that contacts the patient's leg. The support plate 402 can support the patient's leg, and the sponge pad can also improve the comfort of the leg when it contacts the support plate 402.

[0025] The anti-slip texture on the foot pedal 403 increases the friction between the foot and the foot pedal 403, increases the stability of the foot on the foot pedal 403, and prevents the foot from slipping.

[0026] Furthermore, a fixed housing 701 is fixedly connected to the bottom end of the movable rod 401; a rotating shaft 702 is fixedly connected to the left side of the foot pedal 403; one end of the rotating shaft 702 away from the foot pedal 403 extends into the interior of the fixed housing 701, and the end of the rotating shaft 702 away from the foot pedal 403 is rotatably connected to the fixed housing 701 through a bearing; a worm gear 704 is rotatably connected to the fixed housing 701, and a worm wheel 703 meshing with the worm gear 704 is provided inside the fixed housing 701; and the worm wheel 703 is fixedly connected to the rotating shaft 702; the other end of the worm gear 704 extends to the outside of the fixed housing 701 and is fixedly connected to a handle 705; and the worm gear 704 is rotatably connected to the fixed housing 701 through a bearing.

[0027] Specifically, by turning the handle 705, the worm gear 704 is driven to rotate. During the rotation, the worm gear 704, in conjunction with the worm wheel 703, can drive the rotating shaft 702 and the foot pedal 403 to rotate, thereby allowing the foot pedal 403 to adjust its angle, making it more comfortable for the patient to place their feet on the foot pedal 403.

[0028] Further, the adjustment component 8 includes: a movable sleeve 801, a pull rod 802, and a connecting rod 803; the movable sleeve 801 is slidably sleeved on the outer surface of the right column 7; one end of the connecting rod 803 is rotatably connected to the movable sleeve 801 via a second pin 804; the other end of the connecting rod 803 is rotatably connected to the movable rod 401 via a third pin 805; a groove 806 is provided on the left side of the movable sleeve 801; the pull rod 802 is slidably connected inside the groove 806 via a telescopic rod 807; a spring 808 is fixedly installed between the top end of the pull rod 802 and the inner wall of the groove 806; multiple positioning grooves 809 are provided on the left side of both right columns 7; a positioning block 810 corresponding to the positioning groove 809 is fixedly connected to the bottom end of the pull rod 802.

[0029] Specifically, when the user places one hand inside the groove 806 to hold the pull rod 802 while the telescopic end of the telescopic rod 807 is positioned between the fingers, and then pulls the pull rod 802 away from the column 7, the pull rod 802 stretches the spring 808 and the telescopic rod 807 during the movement. The pull rod 802 also pulls the positioning block 810 out of the positioning groove 809. At this point, because the telescopic end of the telescopic rod 807 is positioned between the fingers, the user's upward movement of the hand causes the telescopic rod 807 to move upward. This upward movement of the telescopic rod 807 causes the movable sleeve 801, which is fixedly connected to it, to move upward. During the upward movement of the movable sleeve 801… The connecting rod 803 can drive the movable rod 401 to rotate upward around the first pin 404 until the movable rod 401 rotates to a horizontal position. At this time, the positioning block 810 corresponds to the position of the positioning groove 809 above. Then, the user's finger extends out from the inside of the groove 806. At this time, under the reset action of the stretched spring 808, the pull rod 802 can be driven to move towards the column 7. During the movement, the pull rod 802 drives the positioning block 810 into the inside of the positioning groove 809. With the cooperation of the positioning block 810 and the positioning groove 809, the position of the movable sleeve 801 can be fixed, thereby fixing the position of the movable rod 401.

[0030] After use, the user places one hand inside the groove 806 to hold the pull rod 802 while the telescopic end of the telescopic rod 807 is in the gap between the fingers. Then, the user pulls the pull rod 802 away from the column 7, and then slides the movable sleeve 801 down to drive the movable rod 401 back to its original state. Finally, the user releases the pull rod 802 so that the positioning block 810 enters the positioning groove 809 below.

[0031] Furthermore, there are four wheels 2; the diameter of the two wheels 2 on the left is larger than the diameter of the two wheels 2 on the right.

[0032] Specifically, the wheelchair is moved by the wheels 2 during transfer, and a locking structure can be installed on the two right wheels 2 to lock the two right wheels 2 when no movement is needed, thus preventing the wheelchair from moving. This is existing technology and will not be described in detail here.

[0033] Furthermore, the seat 3 includes a backrest 301 and a seat cushion 302; the backrest 301 and the seat cushion 302 are respectively installed on the left side and bottom of the main support 5, and a sponge pad can be installed on the side of the backrest 301 and the seat cushion 302 that contacts the patient; two handles 9 are fixedly connected to the top left side of the main support 5.

[0034] Specifically, when the patient sits on the seat cushion 302 and leans against the backrest 301, the sponge cushion can enhance comfort, and the wheelchair frame 1 can be easily moved by the handle 9.

[0035] This utility model discloses an adjustable wheelchair. When a patient needs to lift their legs and feet for an examination, the user inserts one hand into the groove 806 to hold the pull rod 802, ensuring the telescopic end of the telescopic rod 807 is within the gap between the fingers. Then, the user pulls the pull rod 802 away from the column 7, and slides the movable sleeve 801 upward, causing the movable rod 401 to rotate upward to a horizontal position. Then, the user releases the pull rod 802, allowing the positioning block 810 to enter the upper positioning groove 809, thus fixing the positions of the movable sleeve 801 and the movable rod 401. The patient is then lifted onto the wheelchair, and their legs remain raised under the support of the support plate 402 on the movable rod 401. Compared to using crutches to support the legs, this utility model, with its support of the movable rod 401 and support plate 402, is more comfortable and convenient to use. After use, the movable sleeve 801 drives the movable rod 401 and support plate 402 to return to their original positions and retract.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An adjustable wheelchair, characterized in that, include: Wheelchair frame, seat back, and two leg supports; The wheelchair frame includes a main support and two mounting seats fixedly connected to the right side of the main support. The two leg supports are rotatably mounted on the two mounting seats respectively. The seats are mounted on the main support. Columns are fixedly connected to the four corners of the lower surface of the main support. The bottom ends of the two left-side columns are fixedly mounted with the same connecting shaft, and two wheels are rotatably mounted on both ends of the connecting shaft. Wheels are rotatably mounted on the bottom ends of the two right-side columns. Adjustment components for leg rotation are provided on the outer surfaces of the two right-side columns. The tripod includes: a movable rod, a support plate, a foot pedal, and a first pin. The top end of the movable rod is rotatably connected to the mounting base via a first pin; the support plate is fixedly connected to the movable rod, and the foot pedal is installed at the bottom end of the movable rod; A fixed housing is fixedly connected to the bottom end of the movable rod; a rotating shaft is fixedly connected to the left side of the foot pedal; one end of the rotating shaft away from the foot pedal extends into the interior of the fixed housing, and the end of the rotating shaft away from the foot pedal is rotatably connected to the fixed housing via a bearing; a worm gear is rotatably connected to the fixed housing, and a worm wheel meshing with the worm gear is provided inside the fixed housing; the worm wheel is fixedly connected to the rotating shaft; the other end of the worm gear extends to the outside of the fixed housing and is fixedly connected to a handle; the worm gear is rotatably connected to the fixed housing via a bearing. The adjustment assembly includes: a movable sleeve, a pull rod, and a connecting rod; The movable sleeve is slidably fitted onto the outer surface of the right column; one end of the connecting rod is rotatably connected to the movable sleeve via a second pin; the other end of the connecting rod is rotatably connected to the movable rod via a third pin; a groove is provided on the left side of the movable sleeve; the pull rod is slidably connected inside the groove via a telescopic rod; a spring is fixedly installed between the top end of the pull rod and the inner wall of the groove; multiple positioning slots are provided on the left side of both right columns; a positioning block corresponding to the positioning slot is fixedly connected to the bottom end of the pull rod.

2. An adjustable wheelchair according to claim 1, wherein, The number of wheels is four; the diameter of the two wheels on the left is larger than the diameter of the two wheels on the right.

3. An adjustable wheelchair according to claim 1, wherein, The seat includes a backrest and a seat cushion; the backrest and seat cushion are respectively installed on the left side and bottom of the main support.

4. An adjustable wheelchair according to claim 1, characterized in that, Two handles are fixedly connected to the top left side of the main support.

Images