CN215689205U

CN215689205U - Self-locking mechanism of leg and foot support frame of electric wheelchair

Info

Publication number: CN215689205U
Application number: CN202120622955.6U
Authority: CN
Inventors: 朱靖果; 唐树果; 赵跃军
Original assignee: Zhejiang Yingluohua Rehabilitation Equipment Co ltd
Current assignee: Zhejiang Yingluohua Rehabilitation Equipment Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-02-01
Anticipated expiration: 2031-03-26

Abstract

The utility model relates to a self-locking mechanism of a leg and foot support frame of an electric wheelchair, which comprises a frame, wherein the frame comprises a horizontal part and a vertical part arranged at the bottom of the horizontal part, the horizontal part is rotatably connected with a front foot pipe, the front foot pipe can rotate up and down, the lower end of the vertical part is obliquely provided with a support rod for supporting the front foot pipe, the side wall of the front foot pipe is rotatably connected with one end of a front foot support piece which is obliquely arranged through a bolt, and the other end of the front foot support piece is movably connected with the support rod through a plurality of special-shaped holes. The utility model has the characteristics of simple and labor-saving operation steps, easy operation, simple and convenient use, safety, reliability and the like.

Description

Self-locking mechanism of leg and foot support frame of electric wheelchair

Technical Field

The utility model belongs to an electric wheelchair, and particularly relates to a self-locking mechanism of a leg and foot support frame of an electric wheelchair.

Background

At present, leg and foot support frames of electric wheelchair vehicles in the market are mostly fixed on a frame, and the positions of the leg and foot support frames are generally fixed and cannot be adjusted; also have the adjustable electronic wheelchair leg foot support frame of some to adopt screwdriver or wrench class instrument, or can adjust after the manual pin pulling, the step is more, and loaded down with trivial details hard, has a great deal of inconvenience to the user.

Disclosure of Invention

The utility model aims to provide a self-locking mechanism of a leg and foot support frame of an electric wheelchair, which solves the problems of complicated steps, labor waste, inconvenience in use and the like in the prior art.

The technical purpose of the utility model is mainly solved by the following technical scheme: a self-locking mechanism of a leg and foot supporting frame of an electric wheelchair comprises a frame, wherein the frame comprises a horizontal part and a vertical part arranged at the bottom of the horizontal part, the horizontal part is rotatably connected with a front foot pipe, the front foot pipe can rotate up and down, a supporting rod used for supporting the front foot pipe is obliquely arranged at the lower end of the vertical part, the side wall of the front foot pipe is rotatably connected with one end of a front foot supporting piece which is obliquely arranged through a bolt, and the other end of the front foot supporting piece is movably connected with the supporting rod through a plurality of special-shaped holes; through the arrangement of the front foot tube and the front foot supporting sheet, when a user uses the wheelchair, the wheelchair can be adjusted by controlling the turning of the front foot tube, so that the steps required by operation are reduced, the adjustment of the electric wheelchair is simpler and easier to operate, and the wheelchair is easier, more labor-saving and more convenient.

Preferably, the front foot supporting piece is provided with a fixing groove for communicating the special-shaped holes, the side wall of the supporting rod is provided with a locking piece which is arranged in the fixing groove in a penetrating way, and the front foot supporting piece can move on the locking piece; through the cooperation setting of above-mentioned opposite sex hole and locking piece for the upset of above-mentioned preceding foot pipe can drive preceding foot backing sheet and remove on the locking piece, thereby plays the effect of adjusting the wheelchair, in order to make things convenient for user's use, can automatic locking after adjusting simultaneously, has guaranteed the steadiness of this mechanism.

Preferably, one end of the horizontal part is rotatably connected with one end of a connecting joint through a bolt, the other end of the connecting joint is rotatably connected with a front foot pipe through a bolt, and the front foot pipe can rotate up and down; through the setting of connecting the joint for above-mentioned front foot pipe can deflect certain angle from top to bottom, thereby plays the effect of adjusting the wheelchair, and has strengthened the fixed strength to the junction, improves stability.

Preferably, the upper end of the supporting rod is provided with a front foot supporting frame which is arranged in an arc shape matched with the front foot pipe; through the arrangement of the front foot supporting frame, when the front foot pipe is positioned at the lowest position, the front foot pipe can be supported by the front foot supporting frame, the situation that the front foot pipe shakes when a user gets on or off the wheelchair to cause inconvenience or accidents in use of the user is avoided, and the stability and the safety of the wheelchair are effectively enhanced.

Preferably, a first nylon gasket is arranged between the joints of the front foot pipe and the front foot supporting sheet; through the arrangement of the first nylon gasket, the front foot supporting piece can still rotate after being fixed, so that the fixing force on the front foot supporting piece is ensured, and the front foot supporting piece can smoothly rotate.

Preferably, the locking piece comprises a self-locking nut, a gasket, a second nylon gasket and a bolt, wherein the self-locking nut, the gasket and the second nylon gasket are matched with each other and are sequentially arranged, the bolt is fixed on the front foot tube, and a gap is formed between the gasket and the second nylon gasket; through the mutual matching of the parts, the locking piece can fix the front foot supporting piece on the front foot pipe, and meanwhile, through the arrangement of the gap and the second nylon gasket, the front foot supporting piece can move freely and can be prevented from being separated.

Preferably, the special-shaped hole comprises an opening part and a blocking part, and the blocking part is arranged above the opening part; through the setting to opening and fender portion for behind the user's upset adjustment wheelchair through preceding foot pipe, the locking piece can directly block in heterotypic downthehole, supports preceding foot pipe, and the continuation upset of foot pipe before the restriction makes the wheelchair fix in a certain state, and the person of facilitating the use uses.

Preferably, one end of the connecting joint is bent downward; through the above-mentioned crooked setting to connecting the joint, can carry on spacingly to the upset of preceding foot pipe, avoid preceding foot pipe upset excessive, strengthen the supporting effect of preceding foot pipe to the leg foot, can strengthen the fixed strength between frame and the preceding foot pipe simultaneously, avoid the pine of preceding foot pipe to take off, guarantee the stability of structure.

Therefore, the utility model has the characteristics of simple and labor-saving operation steps, easy operation, simple and convenient use, safety, reliability and the like.

Drawings

FIG. 1 is an overall structural view of a wheelchair in accordance with the present invention;

fig. 2 is an exploded view of the self-locking mechanism of fig. 1.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

As shown in fig. 1-2, a self-locking mechanism for a leg and foot support frame of an electric wheelchair comprises a frame 1, the frame 1 comprises a horizontal portion 11 and a vertical portion 12 arranged at the bottom of the horizontal portion 11, the horizontal portion 11 is rotatably connected with a front foot pipe 13, the front foot pipe 13 can rotate up and down, a support rod 14 used for supporting the front foot pipe 13 is obliquely arranged at the lower end of the vertical portion 12, the side wall of the front foot pipe 13 is rotatably connected with one end of a front foot support sheet 15 which is obliquely arranged through a bolt, the other end of the front foot support sheet 15 is movably connected with the support rod 14 through a plurality of special-shaped holes 151, through the arrangement of the front foot tube and the front foot supporting piece, when a user uses the wheelchair, the wheelchair can be adjusted through controlling the turnover of the front foot tube, so that the steps required by operation are reduced, the adjustment of the electric wheelchair is simpler and easier to operate, and the electric wheelchair is easier, more labor-saving and more convenient; the locking member 141 comprises a self-locking nut 143, a gasket 144, a second nylon gasket 145 and a bolt 132 fixed on the front leg pipe 13, which are mutually matched and sequentially arranged, a gap is arranged between the gasket 144 and the second nylon gasket 145, the front leg supporting sheet can be fixed on the front leg pipe by the locking member through mutual matching of the parts, meanwhile, the front leg supporting sheet can freely move through the gap and the second nylon gasket, the front leg supporting sheet can be prevented from being separated, and the horizontal part and the vertical part are mutually perpendicular.

As shown in fig. 1-2, the front leg supporting sheet 15 is provided with a fixing groove 152 for communicating each special-shaped hole 151, the side wall of the supporting rod 14 is provided with a locking member 141 penetrating the fixing groove 151 and the front leg supporting sheet 15 can move on the locking member 141, the front leg supporting sheet can be driven to move on the locking member by the turnover of the front leg tube through the matching arrangement of the special-shaped holes and the locking member, so as to adjust the wheelchair, and facilitate the use of the user, and can be automatically locked after adjustment, thereby ensuring the stability of the mechanism, the special-shaped holes 151 comprise an opening 153 and a blocking part 154, the blocking part 154 is arranged above the opening 153, and through the arrangement of the opening and the blocking part, after the user adjusts the wheelchair through the turnover of the front leg tube, the locking member can be directly clamped in the special-shaped holes, thereby supporting the front leg tube and limiting the continuous turnover of the front leg tube, the wheelchair can be fixed in a certain state, and is convenient for a user to use; the single special-shaped hole is a gear, and one gear limits one overturning state of the front foot tube.

As shown in fig. 1-2, one end of the horizontal portion 11 is rotatably connected with one end of the connection joint 111 through a bolt, the other end of the connection joint 111 is rotatably connected with the front leg tube 13 through a bolt, and the front leg tube 13 can rotate up and down, so that the front leg tube can deflect up and down by a certain angle through the arrangement of the connection joint, thereby playing a role of adjusting the wheelchair, strengthening the fixing strength of the connection part and improving the stability; connect joint 111's one end downwarping, through the above-mentioned crooked setting to connecting the joint, can carry on spacingly to the upset of preceding foot pipe, avoid preceding foot pipe upset excessive, strengthen preceding foot pipe to the supporting effect of leg foot, can strengthen the fixed strength between frame and the preceding foot pipe simultaneously, avoid the pine of preceding foot pipe to take off, guarantee the stability of structure.

As shown in fig. 2, the upper end of the supporting rod 14 is provided with a front leg supporting frame 142, the front leg supporting frame 142 is in an arc shape capable of being matched with the front leg tube 13, and the front leg tube is supported by the front leg supporting frame when being at the lowest position through the arrangement of the front leg supporting frame, so that the inconvenience or the accident of the user caused by the shaking of the front leg tube when the user gets on or off the wheelchair can be avoided, and the stability and the safety of the wheelchair can be effectively enhanced.

As shown in fig. 2, a first nylon gasket 131 is arranged between the joints of the front leg tube 13 and the front leg support piece 15, and the front leg support piece can still rotate after being fixed through the arrangement of the first nylon gasket, so that the fixing force on the front leg support piece is ensured, and the front leg support piece can rotate smoothly; the first nylon gasket and the second nylon gasket in this embodiment are both existing products in the existing market, and are prior art, and are not described herein again.

The connecting joint is placed on the frame, a group of primary and secondary bolts penetrates through the connecting joint for fixing, then the upper end of the front foot pipe is placed in the connecting joint, the group of primary and secondary bolts penetrates through the connecting joint for fixing, so that the front foot pipe can rotate by taking the upper end hole as a fulcrum, the primary and secondary nuts penetrate through the gasket, the hole at the upper end of the front foot supporting sheet, the nylon gasket and the hole in the middle of the front foot pipe, and then the primary and secondary bolts are screwed on.

The lowest gear of the special-shaped hole of the front foot supporting sheet is clamped into the locking piece by rotating the front foot pipe, the front foot pipe is at the lowest position at the moment and can be used for a user to sit and get on or off the vehicle, the middle gear of the special-shaped hole of the front foot supporting sheet is clamped into the locking piece by rotating the front foot pipe, the front foot pipe can be lifted to the middle position at the moment and is used for a sitting and lying user to lift feet for rest, the highest gear of the special-shaped hole of the front foot supporting sheet is clamped into the locking piece, and the front foot pipe can be lifted to the highest position at the moment and can be used for a user to lie for rest half.

Especially, when the front foot pipe is rotated, the lowest gear of the special-shaped hole of the front foot supporting piece is clamped into the locking piece, and the front foot pipe is located in the support frame of the front foot support frame when the front foot pipe is at the lowest position, because a user can stand on the pedal sometimes when getting on or off the vehicle, the stability and the safety of the vehicle can be ensured.

Claims

1. The utility model provides an electronic wheelchair leg and foot support frame self-locking mechanism, includes frame (1), its characterized in that: the frame (1) comprises a horizontal part (11) and a vertical part (12) arranged at the bottom of the horizontal part (11), the horizontal part (11) is connected with a front foot pipe (13) in a rotating mode, the front foot pipe (13) can rotate up and down, a supporting rod (14) used for supporting the front foot pipe (13) is obliquely arranged at the lower end of the vertical part (12), one end of a front foot supporting piece (15) obliquely arranged on the side wall of the front foot pipe (13) is connected with the side wall of the front foot pipe in a rotating mode through a bolt, and the other end of the front foot supporting piece (15) is movably connected with the supporting rod (14) through a plurality of special-shaped holes (151).

2. The self-locking mechanism of the support frame for the legs and the feet of the electric wheelchair as claimed in claim 1, wherein: the front foot supporting piece (15) is provided with a fixing groove (152) for communicating the special-shaped holes (151), the side wall of the supporting rod (14) is provided with a locking piece (141) penetrating through the fixing groove (151), and the front foot supporting piece (15) can move on the locking piece (141).

3. The self-locking mechanism of the support frame for the legs and the feet of the electric wheelchair as claimed in claim 1, wherein: one end of the horizontal part (11) is rotatably connected with one end of the connecting joint (111) through a bolt, the other end of the connecting joint (111) is rotatably connected with the front foot pipe (13) through a bolt, and the front foot pipe (13) can rotate up and down.

4. The self-locking mechanism of the support frame for the legs and the feet of the electric wheelchair as claimed in claim 1, wherein: the upper end of the supporting rod (14) is provided with a front foot supporting frame (142), and the front foot supporting frame (142) is arranged in an arc shape which can be matched with the front foot pipe (13).

5. The self-locking mechanism of the support frame for the legs and the feet of the electric wheelchair as claimed in claim 1, wherein: a first nylon gasket (131) is arranged between the joint of the front foot pipe (13) and the front foot supporting sheet (15).

6. The self-locking mechanism of the electric wheelchair leg and foot supporting frame as claimed in claim 2, wherein: the locking piece (141) comprises a self-locking nut (143), a gasket (144), a second nylon gasket (145) and a bolt (132) fixed on the front foot tube (13), wherein the self-locking nut, the gasket (144), the second nylon gasket (145) and the bolt are matched with each other and are arranged in sequence, and a gap is formed between the gasket (144) and the second nylon gasket (145).

7. The self-locking mechanism of the electric wheelchair leg and foot supporting frame as claimed in claim 2, wherein: the special-shaped hole (151) comprises an opening part (153) and a blocking part (154), and the blocking part (154) is arranged above the opening part (153).

8. The self-locking mechanism of the support frame for the legs and the feet of the electric wheelchair as claimed in claim 3, wherein: one end of the connecting joint (111) is bent downward.