WO2023130287A1

WO2023130287A1 - Electric tractor supporting leg for wheelchair with foot rest

Info

Publication number: WO2023130287A1
Application number: PCT/CN2022/070414
Authority: WO
Inventors: 尼尔森·尼尔斯
Original assignee: 恩比尔(厦门)机械制造有限公司
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2023-07-13

Abstract

Disclosed in the present invention is an electric tractor supporting leg for a wheelchair with a foot rest. The supporting leg comprises a foot rest and two supporting rods, wherein upper ends of the two supporting rods are respectively used for being fixed on two sides of a rear portion of the electric tractor of the wheelchair; the two supporting rods extend downwards; the foot rest is connected between the two supporting rods; and the foot rest is positioned at a lower portion of the two supporting rods for a user to step thereon. By means of the present invention, the supporting leg of the electric tractor of the wheelchair also serves as a foot rest, such that the original foot rest on the wheelchair is replaced, and a situation where the foot rest cannot be used due to the original foot rest on the wheelchair interfering with the supporting leg of the electric tractor of the wheelchair is avoided, thus improving the universality of the supporting leg of the electric tractor.

Description

A wheelchair electric mop support foot with pedals

technical field

The invention relates to the technical field of a wheelchair mop, in particular to a supporting foot of an electric mop for a wheelchair with pedals.

Background technique

Some wheelchairs are detachably installed with a pedal frame on the front side of the wheelchair main frame. The pedal frame is provided with pedals. Two rear wheels are arranged on both sides of the rear part of the wheelchair, and two Small universal wheels, in order to take into account the applicability of the wheelchair in the narrow space in daily life, the wheelbase between the two small universal wheels and the two rear wheels of the wheelchair is usually designed to be shorter, but it is rough outdoors or has an inclination angle The short wheelbase makes the wheelchair prone to tipping, and the small wheel diameter of the small universal wheel makes the wheelchair passable on rough ground. Moreover, most of the current wheelchairs are driven by manpower, which is laborious to use.

The existing wheelchair electric tractor mounted on the front of the wheelchair drives the wheelchair forward by electric power, so that the wheelchair is more labor-saving when in use. The front and rear wheelbase of the wheelchair is enlarged, and the stability of the wheelchair is improved. After installing the electric tow head, the two small universal wheels on the wheelchair are lifted to ensure smooth steering and improve passability.

Usually, there is a downwardly extending support foot at the rear of the wheelchair electric tractor. The support foot and the two small universal wheels on the wheelchair are lifted and lowered together, which is convenient for parking after the electric tractor is disassembled, and when it is used again later. However, since the electric tractor and the pedal frame are installed at the front of the wheelchair main frame, when the electric tractor is installed on some wheelchairs, the supporting feet of the electric tractor will interfere with the pedal frame, which will affect the normal operation of the pedal frame. use, resulting in poor versatility of the supporting feet of the electric mop.

Contents of the invention

The object of the present invention is to provide a wheelchair electric mop supporting foot with pedals, which overcomes the above-mentioned defects, enables the electric mopping head supporting foot to have the function of a pedal, and improves the versatility of the electric mopping head supporting foot.

In order to achieve the above object, the solution of the present invention is: a wheelchair electric mop head support foot with pedals, including pedals, two support rods, the upper ends of the two support rods are respectively used to be fixed on the wheelchair electric mop On both sides of the rear part of the head, the two support rods extend downwards, the pedals are connected between the two support rods, and the pedals are located at the lower part of the two support rods for users to step on.

Further, the pedal includes a pedal, and the pedal is located between the two support rods.

Further, the pedal further includes a cross bar assembly, both ends of the cross bar assembly are detachably connected to the two support rods, and the foot pedal is installed on the cross bar assembly.

Further, the foot pedal includes a first pedal, a second pedal, and a pedal fixing screw, the first pedal and the second pedal are stacked on the upper side of the cross bar assembly, and the pedal fixing screw passes through the Screw and fasten the first pedal and the second pedal to the cross bar assembly through the first pedal and the second pedal, and loosen the fixing screws of the pedal to adjust the first pedal The overlapping length of the first pedal and the second pedal is used to adjust the length of the foot pedal.

Further, the cross-bar assembly includes a first cross-bar set and a second cross-bar set that are symmetrical and spaced apart, and the outer sides of the first cross-bar set and the second cross-bar set are detachably connected to the two On the support bar, the insides of the first crossbar group and the second crossbar group are cylindrical, and are respectively movably sleeved with a first jacket, and the pedals are mounted on the two first jackets. on, clamp the first jacket to fix the pedal, the first crossbar set and the second crossbar set, loosen the first jacket to swing the pedal, And by adjusting the distance between the first cross-bar set and the second cross-bar set, the width of the cross-bar assembly is further adjusted.

Further, the first cross bar group and the second cross bar group both include a support rod fixing rod group and a Z-shaped rod, and the support rod fixing rod group is located between the first cross bar group and the second cross bar group The outer side of the Z-shaped bar is located on the inner side of the first cross-bar set and the second cross-bar set. The Z-shaped bar includes a first arm and a second arm with different axes. The first arm It is cylindrical in shape, the first jacket is sleeved on the first arm, the second arm is axially connected to the support rod fixing rod group, and is provided with a device for locking the second arm along the Secondary collet that rotates at the socket.

Further, two ends of the cross bar assembly are respectively hinged with a swing arm, and the two ends of the cross bar assembly are respectively detachably connected to the two support rods through the two swing arms.

Further, a caster wheel is respectively hinged on the bottom of the two support rods for rolling on the ground.

Further, the two support rods are respectively detachably mounted on both sides of the rear of the wheelchair electric tractor.

After adopting the above scheme, the beneficial effect of the present invention is that it includes a pedal and two support rods, the upper ends of the two support rods are respectively used to be fixed on both sides of the rear part of the wheelchair electric tractor, and the two support rods Extending downwards, the pedals are connected between the two support rods, and the pedals are located at the lower part of the two support rods for the user to step on, and then when the electric tractor is installed, the original wheelchair can be The pedal frame is disassembled, and the pedal on the original pedal frame is replaced by the pedal at the lower part of the support rod, which avoids the interference between the pedal frame and the supporting foot of the electric mop head, and improves the versatility of the supporting foot of the electric mop head .

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of another direction of the present invention;

Fig. 3 is a schematic diagram of a partial decomposition structure of the present invention;

Fig. 4 is a schematic diagram of the use state of the present invention.

Explanation of symbols: 1-pedal, 2-support rod, 3-pedal, 4-crossbar assembly, 5-first pedal, 6-second pedal, 7-pedal fixing screw, 8-first crossbar group , 9-the second crossbar group, 10-the first jacket, 11-support rod fixed rod group, 12-Z-shaped rod, 13-the first arm, 14-the second arm, 15-swing arm, 16 -Casters, 17-Second Jacket, 18-Wheelchair Electric Tractor, 19-Screw Fixing Holes, 20-Transfer Rod, 21-Third Jacket.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The present invention provides a wheelchair electric mop support foot with pedals, as shown in Figures 1-4, with emphasis on Figures 1 and 4, including a pedal 1 and two support rods 2, the two supports The upper ends of the rods 2 are respectively used to be fixed on both sides of the rear of the wheelchair electric tractor 18. In this embodiment, the two support rods 2 are detachably fixed on the wheelchair electric tractor 18 by screw connection. The electric tractor 18 is a prior art, and will not be described in detail in this embodiment. The two support rods 2 extend downward, and the pedal 1 is connected between the two support rods 2. The pedal 1 It is located at the bottom of the two support rods 2 for users to step on, and then the original pedal frame on the wheelchair can be disassembled before installing the wheelchair electric tractor 18, which avoids the gap between the pedal frame and the supporting feet of the electric tractor. Interference improves the versatility of the supporting feet of the electric mop.

As shown in Figure 1 and Figure 2, the pedal 1 includes a pedal 3, the pedal 3 is located between the two support rods 2, and the pedal 1 also includes a cross bar assembly 4, Both ends of the cross bar assembly 4 are detachably connected to the two support rods 2 respectively, and the foot board 3 is installed on the cross bar assembly 4, so that the cross bar assembly 4 together with the foot The pedals 3 are disassembled from between the two support rods 2 together, so that the support rods 2 of different shapes can be adapted according to the structure of different wheelchair electric tractors 18 and wheelchairs, and the pedal 1 can be installed on the On the support rod 2 of the existing wheelchair electric tractor 18.

As shown in Figure 1 and Figure 2, the pedal 3 includes a first pedal 5, a second pedal 6, and a pedal fixing screw 7, and the first pedal 5 and the second pedal 6 are stacked on the The upper side of the cross bar assembly 4, the pedal fixing screw 7 passes through the first pedal 5 and the second pedal 6 at the same time, and the first pedal 5 and the second pedal 6 are screwed and fastened On the cross bar assembly 4, loosen the pedal fixing screw 7 to adjust the overlapping length of the first pedal 5 and the second pedal 6, and then adjust the length of the foot pedal 3. In this embodiment , the first pedal 5 and the second pedal 6 respectively have a plurality of screw fixing holes 19 in a linear equidistant array, move the first pedal 5 or the second pedal 6 back and forth, and adjust the first pedal 5 and the second pedal 6 The overlapping positions of a plurality of screw fixing holes 19 on the second pedal 6, the pedal fixing screws 7 pass through the screw fixing holes 19 on the first pedal 5 and the second pedal 6 and are screwed and fastened to the On the cross bar assembly 4, the pedal 3 can be adjusted to an appropriate length according to the size of the sole of the user.

As shown in Fig. 2 and Fig. 3, the cross bar assembly 4 includes a first cross bar group 8 and a second cross bar group 9 which are arranged symmetrically and at intervals, and the first cross bar group 8 and the second cross bar group The outer sides of 9 are detachably connected to the two support rods 2, the inner sides of the first cross bar group 8 and the second cross bar group 9 are cylindrical, and a first jacket is respectively movably sleeved. 10. The pedals 3 are installed on the two first jackets 10, and when installing, loosen the first jackets 10 to swing the pedals 3 and place the feet The pedal 3 is adjusted to a comfortable angle, and by adjusting the distance between the first cross-bar set 8 and the second cross-bar set 9, the width of the cross-bar assembly 4 is adjusted to accommodate the two support bars 2. The spacing changes when installed on different wheelchair electric tractors 18. Clamp the first jacket 10 to fix the pedal 3, the first crossbar group 8, and the second crossbar group 9. Specifically, the first cross bar group 8 and the second cross bar group 9 both include a support rod fixing rod group 11 and a Z-shaped rod 12, and the support rod fixing rod group 11 is located in the first cross bar group 8 and the outside of the second crossbar group 9, and a swing arm 15 is hinged on the outside, and the swing arm 15 swings longitudinally. Jacket 21, and then the two ends of the cross bar assembly 4 are detachably connected to the two support rods 2 through the two swing arms 15 respectively, when the cross bar assembly 4 is installed, adjust the The swing angle of the swing arm 15 is adapted to the inclination angle when the two support rods 2 are installed on different wheelchair electric tractors 18, and the Z-shaped rod 12 is located at the first cross-bar group 8 and the second cross-bar group 9, the Z-shaped rod 12 includes an off-axis first arm 13 and a second arm 14, the first arm 13 is cylindrical, and the first jacket 10 is sleeved on the first On one arm 13, the second arm 14 is axially rotatably socketed with the support rod fixing rod set 11, and a second jacket 17 for locking the rotation of the second arm 14 along the socket is provided. Specifically, in this embodiment, the second support arm 14 is in the shape of a circular tube with an opening on the side wall, and the support rod fixing rod set 8 further includes an adapter rod 20, and one end of the adapter rod 20 is cylindrical, The other end is hinged to the swing arm 15, and the cylindrical end of the adapter rod 20 is inserted into the second arm 14 to rotate, and the second jacket 17 is sleeved on the outer periphery of the second arm 14 to tighten The second jacket 17, the second jacket 17 tightens the second support arm 14 on the cylindrical end of the transfer rod 20, loosens the second jacket 17, and rotates the Z-shaped rod 12. Make the first arm 13 rotate longitudinally at the joint between the adapter rod 20 and the second arm 14, and then change the height of the first arm 13 during the rotation, namely Changing the height of the first jacket 10 and the pedal 3 realizes the height adjustment of the pedal 3 .

Preferably, a caster 16 is respectively hinged on the bottom of the two support rods 2 for rolling on the ground, and the support rod 2 is supported on the ground through the caster 16 .

The first jacket 10, the second jacket 17, and the third jacket 21 can be any existing structure capable of clamping or loosening pipe fittings. In this embodiment, the first jacket 10, Both the second jacket 17 and the third jacket 21 are C-shaped structures with two crank arms, and a jacket locking screw passes through one crank arm and is screwed to the other crank arm, thereby rotating the jacket to lock The screw realizes tightening and loosening.

The above descriptions are only preferred embodiments of the present invention, and are not limitations on the design of this case. All equivalent changes made according to the design key of this case all fall within the scope of protection of this case.

Claims

A wheelchair electric mop support foot with pedals, characterized in that it includes a pedal (1) and two support rods (2), the upper ends of the two support rods (2) are respectively used to be fixed on the wheelchair electric On both sides of the rear part of the drag head, the two support rods (2) extend downward, and the pedal (1) is connected between the two support rods (2), and the pedal (1) is located at the Describe the lower parts of the two support rods (2) for users to step on.
According to claim 1, a wheelchair electric mop supporting foot with pedals is characterized in that: the pedals (1) include pedals (3), and the pedals (3) are located between the two between the support rods (2).
According to claim 2, a wheelchair electric mop support foot with pedals, characterized in that: the pedals (1) also include a crossbar assembly (4), and the two ends of the crossbar assembly (4) are respectively It is detachably connected to the two support rods (2), and the pedal (3) is installed on the cross bar assembly (4).
According to claim 3, a wheelchair electric mop supporting foot with pedals is characterized in that: said pedals (3) include a first pedal (5), a second pedal (6), a pedal fixing screw ( 7), the first pedal (5) and the second pedal (6) are stacked on the upper side of the cross bar assembly (4), and the pedal fixing screw (7) passes through the first pedal (5) and the second pedal (6), fasten the first pedal (5) and the second pedal (6) to the crossbar assembly (4) by screws, loosen the The pedal fixing screw (7) is used to adjust the overlapping length of the first pedal (5) and the second pedal (6), thereby adjusting the length of the foot pedal (3).
According to claim 3, a wheelchair electric mop support foot with pedals, characterized in that: the cross bar assembly (4) includes a first cross bar group (8) and a second cross bar which are symmetrical and spaced apart group (9), the outer sides of the first cross-bar group (8) and the second cross-bar group (9) are respectively detachably connected to the two support rods (2), and the first cross-bar group (8) and the inner side of the second crossbar group (9) are cylindrical, and respectively movably sleeved with a first jacket (10), the pedal (3) is installed on the two first clips On the sleeve (10), clamp the first clamp (10) to fix the pedal (3), the first cross-bar set (8), and the second cross-bar set (9), and loosen The first jacket (10) is used to swing the pedal (3), and adjust the distance between the first cross-bar set (8) and the second cross-bar set (9) to further adjust The width of the cross bar assembly (4).
According to claim 5, a wheelchair electric mop supporting foot with pedals, characterized in that: the first cross bar group (8) and the second cross bar group (9) both include support rod fixing rods group (11), Z-shaped rods (12), the support rod fixing rod group (11) is located on the outside of the first cross-bar group (8) and the second cross-bar group (9), and the Z-shaped rod (12) Located on the inner side of the first crossbar group (8) and the second crossbar group (9), the Z-shaped rod (12) includes a first arm (13) of different axes, a second arm (14), the first support arm (13) is cylindrical, the first jacket (10) is sleeved on the first support arm (13), and the second support arm (14) and The support rods are fixed to the rod group (11) and are axially rotatably connected, and are provided with a second jacket (17) for locking the rotation of the second support arm (14) along the socket.
According to claim 3, a wheelchair electric mop supporting foot with pedals is characterized in that: two ends of the cross bar assembly (4) are respectively hinged with a swing arm (15), and the cross bar assembly ( 4) The two ends are detachably connected to the two support rods (2) through the two swing arms (15) respectively.
According to claim 1, the supporting foot of an electric mop for a wheelchair with pedals is characterized in that: the bottoms of the two supporting rods (2) are respectively hinged with a caster (16) for rolling on the ground.
According to claim 1, a supporting foot of an electric mop for a wheelchair with pedals, characterized in that: the two support rods (2) are detachably mounted on both sides of the rear of the electric mop for a wheelchair.