Foldable pedal structure of wheelchair

Abstract

The utility model discloses a wheelchair foldable pedal structure, and relates to the technical field of nursing tools, the wheelchair foldable pedal structure comprises a wheelchair and a pedal mechanism mounted on one side of the wheelchair, and the pedal mechanism comprises a transmission rod and a pedal platform; a connecting rod is arranged in the wheelchair, and the connecting rod is rotationally connected with the transmission rod; a fixing support is arranged at the end, away from the wheelchair, of the transmission rod, and the pedal platform is arranged on the fixing support. An adjusting mechanism is arranged between the fixing support and the transmission rod, the pedal platform can be stored in the wheelchair through the transmission rod rotationally connected with the connecting rod, meanwhile, the pedal can be stored and released through the adjusting mechanism, and therefore the pedal can be folded or unfolded, and the wheelchair can be conveniently used.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nursing tools, in particular to a foldable footrest structure of a wheelchair. BACKGROUND

[0002] The wheelchair is a tool for replacing the wounded or the disabled to walk, and generally includes a seat part, front and rear wheels, armrests, a footrest and the like. The wheelchair is convenient for the user to use and provides a more comfortable experience for the user through a plurality of auxiliary structures.

[0003] In the related art, the footrest of the wheelchair is generally arranged on one side of the wheelchair and extends to the outside of the wheelchair, so that the footrest increases the footprint of the wheelchair. When the wheelchair is not used, the footrest may affect the placement of the wheelchair, causing inconvenience. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a foldable footrest structure of a wheelchair to improve the problem that the footrest affects the placement of the wheelchair.

[0005] The foldable footrest structure of the wheelchair provided by the present application adopts the following technical solution:

[0006] The foldable footrest structure of the wheelchair includes a wheelchair and a footrest mechanism arranged on one side of the wheelchair. The footrest mechanism includes a transmission rod and a footrest platform. A connecting rod is arranged in the wheelchair, and the connecting rod is rotationally connected with the transmission rod. One end of the transmission rod abuts against the connecting rod, and a fixed support is arranged at the end of the transmission rod away from the wheelchair. The footrest platform is arranged on the fixed support. An adjusting mechanism is arranged between the fixed support and the transmission rod.

[0007] By adopting the above technical solution, the footrest mechanism is arranged on one side of the wheelchair, and the footrest mechanism includes the transmission rod and the footrest platform. A connecting rod is arranged in the wheelchair, and the connecting rod is rotationally connected with the transmission rod. At this time, the transmission rod can rotate based on the connecting rod, and the end of the transmission rod close to the wheelchair can abut against the connecting rod, so as to limit the rotation of the transmission rod and fix the transmission rod at a specific angle. A fixed support is arranged at the end of the transmission rod away from the wheelchair, and the footrest platform is arranged on the fixed support. An adjusting mechanism is arranged between the fixed support and the transmission rod. The position of the footrest platform can be adjusted by the adjusting mechanism to adapt to different users and facilitate the use of different users. By rotating the transmission rod, the footrest platform can be retracted into the wheelchair, thereby saving space and facilitating the placement of the wheelchair.

[0008] Preferably, the adjusting mechanism includes a connecting sleeve and a positioning screw. The connecting sleeve is arranged in the fixed support, and the transmission rod can be inserted into the connecting sleeve. A threaded connection hole is arranged on the outer wall of the fixed support, and a plurality of positioning holes are arranged on the outer wall of the transmission rod. The positioning screw can be inserted into the positioning holes through the threaded connection hole.

[0009] By adopting the technical scheme, the adjusting mechanism comprises a connecting sleeve and a positioning screw, the connecting sleeve is arranged in the fixing support, and the transmission rod can be inserted into the connecting sleeve; a threaded connection hole is arranged on the outer side wall of the connecting sleeve, and a plurality of positioning holes are arranged on the outer side wall of the transmission rod, at this time, the positioning screw can be inserted into the positioning hole through the threaded connection hole, the position of the pedal platform is adjusted by adjusting the inserted different positioning holes, so that the pedal platform can adapt to different users.

[0010] Preferably, a sliding protrusion is arranged on the inner side wall of the connecting sleeve, and a sliding groove corresponding to the sliding protrusion is arranged on the outer side wall of the transmission rod, and the sliding protrusion can be inserted into the sliding groove.

[0011] By adopting the technical scheme, the sliding protrusion is arranged on the inner side wall of the connecting sleeve, and the sliding groove corresponding to the sliding protrusion is arranged on the outer side wall of the transmission rod, when the transmission rod is inserted into the connecting sleeve, the transmission rod is positioned by the cooperation of the sliding protrusion and the sliding groove, so that the connecting sleeve is more accurate when installed, and the movement of the connecting sleeve is limited, so that the fixing of the connecting sleeve is more stable.

[0012] Preferably, a soft rubber sleeve one is arranged on the end of the transmission rod abutting against the connecting rod.

[0013] By adopting the technical scheme, the soft rubber sleeve one is arranged on the end of the transmission rod abutting against the connecting rod, the collision between the transmission rod and the connecting rod is buffered by the soft rubber sleeve one, the friction loss between the transmission rod and the connecting rod is effectively reduced, the friction force between the transmission rod and the connecting rod is increased, so that the fixing of the transmission rod is more stable, and the service life of the connecting rod and the transmission rod is increased.

[0014] Preferably, a fixed protrusion is arranged in the soft rubber sleeve one, and the fixed protrusion can be inserted into the transmission rod.

[0015] By adopting the technical scheme, the fixed protrusion is arranged in the soft rubber sleeve one, and the soft rubber sleeve one is fixed by being inserted into the transmission rod through the fixed protrusion, so that the soft rubber sleeve one is more stably installed on the transmission rod.

[0016] Preferably, a plurality of fixed protrusions are arranged on the surface of the pedal platform.

[0017] By adopting the technical scheme, the plurality of fixed protrusions are arranged on the surface of the pedal platform, the friction force of the surface of the pedal platform is increased by the fixed protrusions, so that the foot of the user can be stably placed on the surface of the pedal platform.

[0018] Preferably, a soft rubber sleeve two is sleeved on the fixing protrusion, an installation protrusion is arranged in the soft rubber sleeve, the fixing protrusion is provided with an installation groove corresponding to the installation protrusion, and the installation protrusion can be inserted into the installation groove.

[0019] By adopting the technical scheme, the soft rubber sleeve two is sleeved on the fixing protrusion, the friction of the fixing protrusion is increased by the soft rubber sleeve two, so that the user's foot is more stably placed on the pedal platform; meanwhile, the installation protrusion is arranged in the soft rubber sleeve two, and the installation groove is arranged on the fixing protrusion corresponding to the installation protrusion, the soft rubber sleeve two is fixed on the fixing protrusion by inserting the installation protrusion into the installation groove, so that the fixing of the soft rubber sleeve two is more stable, and the soft rubber sleeve two can be conveniently replaced.

[0020] Preferably, a fixing baffle is arranged on one side of the pedal platform close to the wheelchair.

[0021] By adopting the technical scheme, the fixing baffle is arranged on one side of the pedal platform close to the wheelchair, and the user's foot is supported by the fixing baffle, so as to avoid the user's foot from sliding down from the pedal platform.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. A pedal mechanism is arranged on one side of the wheelchair, a connecting rod is arranged in the wheelchair, a transmission rod in the pedal mechanism is rotationally connected with the connecting rod, one end of the transmission rod abuts against the connecting rod, and the other end of the transmission rod is provided with a pedal platform, so that the transmission rod can be rotated through the connecting rod, and the pedal platform can be retracted into the wheelchair, thereby saving space.

[0024] 2. An adjusting mechanism is arranged between the transmission rod and the pedal platform, the adjusting mechanism comprises a connecting sleeve and a positioning screw, the transmission rod can be inserted into the connecting sleeve, a threaded connection hole is arranged on the outer side of the connecting sleeve, a plurality of positioning holes are arranged in the transmission rod, and the positioning screw is inserted into the positioning hole through the threaded connection hole, so that the position of the pedal platform is adjusted by inserting into different positioning holes to adapt to different situations.

[0025] 3. A plurality of fixing protrusions are arranged on the surface of the pedal platform, and a soft rubber sleeve two is sleeved on the fixing protrusions, so as to increase the friction between the user's foot and the pedal platform, thereby enabling the user's foot to be more stably placed on the pedal platform. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a whole structure schematic view of a foldable foot pedal structure of a wheelchair.

[0027] Figure 2 is Figure 1 is an enlarged view of A in

[0028] Figure 3 is a sectional view schematic diagram for showing the internal structure of the pedal platform in the embodiment.

[0029] Figure 4 is Figure 3 is an enlarged view of B in

[0030] Figure 5 is Figure 3 is an enlarged view of C in

[0031] Figure 6 is a sectional view schematic diagram for showing the internal structure of the transmission rod in the embodiment.

[0032] Figure 7 is Figure 6 is an enlarged view of D in

[0033] In the figure, 1, wheelchair; 11, connecting rod; 2, pedal mechanism; 21, transmission rod; 211, positioning hole; 212, soft rubber sleeve I; 2121, embedded protrusion; 213, sliding protrusion; 22, pedal platform; 221, fixed protrusion; 2211, soft rubber sleeve II; 22111, mounting protrusion; 2212, mounting groove; 222, fixed baffle; 3, fixed support; 4, adjusting mechanism; 41, connecting sleeve; 411, threaded connection hole; 412, sliding groove; 42, positioning screw. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying Figure 1 - the accompanying Figure 7 , the present application is further described in detail.

[0035] A foldable pedal structure of a wheelchair, referring to Figure 1 and Figure 2 , comprising a wheelchair 1, a pedal mechanism 2, the pedal mechanism 2 is installed on one side of the wheelchair 1, the pedal mechanism 2 comprises a transmission rod 21 and a pedal platform 22; a connecting rod 11 is arranged in the wheelchair 1, the transmission rod 21 is rotationally connected with the connecting rod 11, so that the transmission rod 21 can rotate around the connecting rod 11, and at the same time, one end of the transmission rod 21 close to the wheelchair 1 abuts against the connecting rod 11, the other end of the transmission rod 21 is provided with a fixed support 3, and the pedal platform 22 is installed on the fixed support 3, at this time, the transmission rod 21 can rotate based on the connecting rod 11, thereby driving the pedal platform 22 to rotate to the outside of the wheelchair 1 or into the wheelchair 1, which is convenient for folding and unfolding the pedal platform 22, and further saves the placing space of the wheelchair 1; at the same time, a fixed baffle 222 is arranged on one side of the pedal platform 22 close to the wheelchair 1, and the fixed baffle 222 can hold up the user's feet, avoiding the user's feet from sliding down from the pedal platform 22.

[0036] Referring to Figure 3 and Figure 4, an adjusting mechanism 4 is arranged between the transmission rod 21 and the fixed support 3, the adjusting mechanism 4 comprises a connecting sleeve 41 and a positioning screw 42, the connecting sleeve 41 is arranged in the fixed support 3, and the transmission rod 21 can be inserted into the connecting sleeve 41; meanwhile, a threaded connection hole 411 is arranged on the outer side wall of the connecting sleeve 41, and a plurality of positioning holes 211 are arranged on the outer side wall of the transmission rod 21, at this time, the positioning screw 42 can be inserted into the positioning hole 211 after penetrating through the threaded connection hole 411, that is, the connecting sleeve 41 can be fixed on the transmission rod 21, meanwhile, the position of the connecting sleeve 41 can be adjusted by inserting the positioning hole 211 at different positions, and then the position of the pedal platform 22 on the fixed support 3 can be adjusted, so that the pedal platform 22 can adapt to different users.

[0037] With reference to Figure 6 With reference to Figure 7 , a sliding protrusion 213 is arranged on the inner side wall of the connecting sleeve 41, and a sliding groove 412 is arranged on the outer side wall of the transmission rod 21 corresponding to the sliding protrusion 213, when the transmission rod 21 is inserted into the connecting sleeve 41, the sliding protrusion 213 is inserted into the sliding groove 412, the transmission rod 21 is positioned by cooperation of the sliding protrusion 213 and the sliding groove 412, so that the installation of the connecting sleeve 41 is more accurate; meanwhile, the cooperation of the sliding protrusion 213 and the sliding groove 412 can limit the movement of the connecting sleeve 41, so that the fixing of the connecting sleeve 41 is more stable; a soft rubber sleeve one 212 is sleeved on one end of the connecting rod 11, the material of the soft rubber sleeve one 212 is rubber, the soft rubber sleeve one 212 is used for buffering the collision between the transmission rod 21 and the connecting rod 11, reducing the friction loss between the transmission rod 21 and the connecting rod 11, thereby increasing the service life of the connecting rod 11 and the transmission rod 21; and the soft rubber sleeve one 212 can make the friction force between the transmission rod 21 and the connecting rod 11, so that the fixing of the transmission rod 21 is more stable; meanwhile, an embedded protrusion 2121 is arranged in the soft rubber sleeve one 212, the embedded protrusion 2121 can be inserted into the transmission rod 21, so that the soft rubber sleeve one 212 is more stably installed on the transmission rod 21.

[0038] With reference to Figure 5 , a plurality of fixed protrusions 221 are arranged on the surface of the pedal platform 22, the fixed protrusions 221 can increase the friction force of the surface of the pedal platform 22; meanwhile, a soft rubber sleeve two 2211 is sleeved on the fixed protrusion 221, the material of the soft rubber sleeve two 2211 is rubber, the soft rubber sleeve two 2211 is used for further increasing the friction force of the pedal platform 22, and an installation protrusion 22111 is arranged in the soft rubber sleeve two 2211, an installation groove 2212 is arranged on the fixed protrusion 221 corresponding to the installation protrusion 22111, the soft rubber sleeve two 2211 is fixed on the fixed protrusion 221 through cooperation of the installation protrusion 22111 and the installation groove 2212, so that the soft rubber sleeve two 2211 can be more stably installed on the fixed protrusion 221, and the replacement of the soft rubber sleeve two 2211 is also facilitated.

[0039] The implementation principle of the embodiment of the present application is:

[0040] The pedal mechanism 2 is installed on one side of the wheelchair 1, the pedal mechanism 2 comprises a transmission rod 21 and a pedal platform 22, a connecting rod 11 is arranged in the wheelchair 1, the transmission rod 21 is rotationally connected with the connecting rod 11, one end of the transmission rod 21 abuts against the connecting rod 11 to limit the rotation of the transmission rod 21, the other end of the transmission rod 21 is provided with a fixed support 3, and the pedal platform 22 is installed on the fixed support 3, at this time, the transmission rod 21 can drive the pedal platform 22 to be retracted into or extended out of the wheelchair 1; meanwhile, an adjusting mechanism 4 is arranged between the fixed support 3 and the transmission rod 21, the position of the pedal platform 22 can be adjusted by using the adjusting mechanism 4 to adapt to different users.

[0041] The adjusting mechanism 4 comprises a connecting sleeve 41 and a positioning screw 42, the connecting sleeve 41 is arranged in the fixed support 3, the transmission rod 21 can be inserted into the connecting sleeve 41, a threaded connection hole 411 is arranged on the outer side wall of the connecting sleeve 41, a plurality of positioning holes 211 are arranged on the outer side wall of the transmission rod 21, the positioning screw 42 is inserted into the positioning holes 211 through the threaded connection hole 411, the connecting sleeve 41 can be fixed on the transmission rod 21, and the position of the pedal platform 22 can be adjusted by inserting the positioning screw 42 into different positioning holes 211, that is, different users can be adapted.

[0042] A plurality of fixed protrusions 221 are arranged on the surface of the pedal platform 22, the fixed protrusions 221 can increase the friction of the surface of the pedal platform 22, a soft rubber sleeve 2211 is sleeved on the fixed protrusions 221, the friction of the pedal platform 22 is further increased by using the soft rubber sleeve 2211, so that the user's foot can be more stably placed on the pedal platform 22; meanwhile, a fixed baffle 222 is arranged on the side of the pedal platform 22 close to the wheelchair 1, the fixed baffle 222 can support the user's foot, so that the user's foot can be more stably and comfortably placed on the pedal platform 22.

[0043] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. Therefore, equivalent changes made according to the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A wheelchair foldable footrest structure, characterized by: The application relates to a wheelchair (1), a pedal mechanism (2) mounted on one side of the wheelchair (1), wherein the pedal mechanism (2) comprises a transmission rod (21) and a pedal platform (22); a connecting rod (11) is arranged in the wheelchair (1) and rotationally connected with the transmission rod (21); one end of the transmission rod (21) is abutted with the connecting rod (11); a fixed support (3) is arranged at the end of the transmission rod (21) away from the wheelchair (1); the pedal platform (22) is arranged on the fixed support (3); and an adjusting mechanism (4) is arranged between the fixed support (3) and the transmission rod (21).

2. The foldable footrest structure of a wheelchair according to claim 1, wherein: The adjusting mechanism (4) comprises a connecting sleeve (41) and a positioning screw (42); the connecting sleeve (41) is arranged in the fixed support (3) and the connecting rod (11) can be inserted into the connecting sleeve (41); a threaded connection hole (411) is arranged on the outer wall of the fixed support (3); a plurality of positioning holes (211) are arranged on the outer wall of the connecting rod (11); and the positioning screw (42) can be inserted into the positioning holes (211) through the threaded connection hole (411).

3. The foldable footrest structure of a wheelchair according to claim 2, wherein: The inner wall of the connecting sleeve (41) is provided with a sliding protrusion (213); the outer wall of the transmission rod (21) is provided with a sliding groove (412) corresponding to the sliding protrusion (213); and the sliding protrusion (213) can be inserted into the sliding groove (412).

4. The foldable footrest structure of a wheelchair according to claim 1, wherein: The end of the transmission rod (21) abutted with the connecting rod (11) is provided with a soft rubber sleeve (212).

5. The foldable footrest structure of a wheelchair according to claim 4, wherein: The soft rubber sleeve (212) is provided with an embedded protrusion (2121) arranged in the soft rubber sleeve (212); and the embedded protrusion (2121) can be inserted into the transmission rod (21).

6. The foldable footrest structure of a wheelchair according to claim 1, wherein: The pedal platform (22) is provided with a plurality of fixed protrusions (221) on the surface.

7. The foldable footrest structure of a wheelchair according to claim 6, wherein: A soft rubber sleeve (2211) is arranged on the plurality of fixed protrusions (221); the soft rubber sleeve (2211) is provided with an installation protrusion (22111) arranged in the soft rubber sleeve (2211); the fixed protrusion (221) is provided with an installation groove (2212) corresponding to the installation protrusion (22111); and the installation protrusion (22111) can be inserted into the installation groove (2212).

8. The foldable footrest structure of a wheelchair according to claim 1, wherein: The pedal platform (22) is provided with a fixed baffle (222) arranged on the side close to the wheelchair (1).

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