CN219557852U - Pedal support and wheelchair with same - Google Patents

Abstract

The utility model provides a pedal support and a wheelchair with the pedal support, relates to the technical field of wheelchairs, and solves the technical problems that a conventional pedal support cannot be adjusted back and forth, is difficult to adapt to the shape of a user, causes uncomfortable foot placement of the user, and has potential safety hazards _。 The pedal bracket comprises a pedal, a bottom frame, a first side frame, a second side frame, a first special-shaped hinge and a second special-shaped hinge, wherein one end of the first side frame and the same end of the second side frame are fixedly connected with two opposite sides of the bottom frame; one end of the first side frame and one end of the second side frame, which are far away from the bottom frame, are respectively connected in a rotating wayThe pedal is provided with a first connecting component, and the corresponding position on the bottom frame is provided with a second connecting component. The pedal is moved relative to the bottom frame through the cooperation of the first connecting component and the second connecting component, namely, the pedal moves along the front-back direction when the user puts the foot on the pedal, and users with various shapes can put the foot on the pedal comfortably, so that the pedal has great popularization value and wide application prospect.

Description

Pedal support and wheelchair with same

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a pedal bracket and a wheelchair with the pedal bracket.

Background

The wheelchair (including the electric wheelchair) is a rehabilitation and mobility aid used by wounded, patients, disabled persons, old people or persons with mobility impairment, and can be used for not only seeing a doctor and going out for a short distance, but also taking part in social activities in the open air.

The foot rest support consisting of pedals and a support is usually arranged at the front lower part of the wheelchair seat, so that a user can rest feet, and the effective support of the feet is realized. The present inventors have found that at least the following technical problems exist in the prior art: although the conventional pedal support can be folded and stored through overturning, the pedal is always fixed on the support, the shape and the framework of a user are small, the conventional pedal support is difficult to adjust in the front-back direction to adapt to the femur length of the user, namely, the back sole is possibly suspended in a relaxed state of the user with a shorter femur, the whole sole is required to sit on the pedal, and the back waist is free of support; the user with long femur may hang the front sole in a relaxed state, want the whole sole to be contracted and seated by stepping on the pedal, resulting in compression of the rear waist; in a word, when the user is on the conventional pedal support, the user is always forced to frequently move the foot position or adjust the waist back position, and the user cannot sit in a comfortable posture, even because the foot is not stably placed, the potential safety hazard of knocking and falling still exists.

Disclosure of Invention

The utility model aims to provide a pedal bracket, which solves the technical problems that the conventional pedal bracket in the prior art cannot be adjusted back and forth, is difficult to adapt to the shape of a user, causes uncomfortable foot placement of the user and has potential safety hazard _。 The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above object, the embodiments of the present utility model provide the following technical solutions:

in a first aspect, an embodiment of the present utility model provides a pedal bracket, including a pedal, a bottom frame, a first side frame, a second side frame, and a first shaped hinge and a second shaped hinge, wherein: the first side frame and the second side frame are arranged in parallel and are perpendicular to the plane where the bottom frame is located, and one end of the first side frame and the same end of the second side frame are fixedly connected with two opposite sides of the bottom frame respectively; one end of the first side frame, which is far away from the bottom frame, is rotationally connected with the first special-shaped hinge, one end of the second side frame, which is far away from the bottom frame, is rotationally connected with the second special-shaped hinge, and the first special-shaped hinge and the second special-shaped hinge are arranged in parallel; the pedal set up in the middle on the underframe, be equipped with first coupling assembling on the pedal, the corresponding position is equipped with second coupling assembling on the underframe, first coupling assembling with second coupling assembling cooperation is so that the pedal is relative the position of underframe removes, the direction that the pedal removed with the line between first dysmorphism hinge with the second dysmorphism hinge is perpendicular.

Further, the first connecting component comprises at least two groups of hole systems distributed on the pedal, each group of hole systems comprises a plurality of through holes with the same quantity, the through holes are arranged in a row, and the arrangement direction is parallel to the moving direction of the pedal along the bottom frame; the second connecting assembly comprises at least two groups of limiting bodies arranged on the pedal, each group of limiting bodies is opposite to one through hole in one group of hole systems, and the through holes corresponding to the limiting bodies are positioned at the same position in the hole systems.

Further, the first connecting component comprises at least two elongated holes distributed on the pedal, each elongated hole has the same length, and the length direction of each elongated hole is parallel to the moving direction of the pedal along the bottom frame; the second connecting assembly comprises at least two groups of limiting bodies arranged on the pedal, each group of limiting bodies is opposite to one strip hole, and the positions of the limiting bodies in the opposite strip holes are the same.

Further, each group of limiting bodies comprises a limiting seat and a limiting column, the limiting seats are arranged on the bottom frame, and the limiting columns at least partially penetrate through the corresponding through holes or the strip holes and then are inserted into the limiting seats and are detachably connected with the limiting seats.

Further, the bottom frame at least comprises a front cross rod, one end of the front cross rod is fixedly connected with the first side frame, and the other end of the front cross rod is fixedly connected with the second side frame; when the second connecting assembly comprises two groups of limiting bodies, the first group of limiting bodies are arranged on the cross rod and close to the first side frame, and the second group of limiting bodies are arranged on the cross rod and close to the second side frame.

Further, the bottom frame further comprises a back bent rod and two side connecting rods, wherein: the back bending rod comprises two vertical sections perpendicular to the front cross rod and a parallel section which is positioned between the two vertical sections and parallel to the front cross rod; one of the side links is located between one of the vertical segments and the first side frame, and the other of the side links is located between the other of the vertical segments and the second side frame; when the second connecting component comprises more than two groups of limiting bodies, the other limiting bodies except the first two groups are positioned on the parallel section.

Further, the first shaped hinge and the second shaped hinge are both block bodies and have the same structure, and include a movable end connected with the first side frame or the second side frame and a fixed end connected with the device equipped with the pedal bracket, wherein: the movable end comprises two clamping lugs, the first side frame or the second side frame is clamped between the two clamping lugs, and a rotating shaft penetrating through the two clamping lugs and the first side frame or the second side frame is arranged at the overlapping position of the two clamping lugs and the first side frame or the second side frame; the fixed end comprises a welding area which is used for being connected with a device provided with the pedal bracket, and the welding area is positioned on the side surface of the fixed end parallel to the rotating shaft; the first side frame or the second side frame extends from between the two clamping lugs along the normal direction of the welding area towards one side far away from the movable end to form an abutting part, and the abutting part abuts against the bottom of the part, connected with the welding area, of the device provided with the pedal support.

Further, the fixed end further comprises a fixed hole fixedly connected with the device provided with the pedal bracket, and the fixed hole penetrates through the fixed end and is parallel to the rotating shaft.

In a second aspect, embodiments of the present utility model provide a wheelchair comprising at least a seat and a frame, at least part of the frame being located below the seat; the bicycle seat is characterized by further comprising the pedal support, wherein at least one end of the first special-shaped hinge, which is far away from the first side frame, and one end of the second special-shaped hinge, which is far away from the second side frame, are fixedly connected with the frame, and at least most of pedals extend out of the lower part of the seat.

Further, the frame at least comprises two lower frame longitudinal connecting rods positioned below the seat and a front frame longitudinal connecting plate which is used for configuring front wheels; the two lower frame longitudinal connecting rods are arranged in parallel and are respectively positioned at two sides below the seat, the two front frame longitudinal connecting plates and the two lower frame longitudinal connecting rods are arranged in parallel in the same direction, and the two lower frame longitudinal connecting rods are arranged between the two front frame longitudinal connecting plates; one end of the first side frame far away from the pedal extends to the junction of one front frame longitudinal connecting plate and the corresponding lower frame longitudinal connecting rod, and the first special-shaped hinge is connected with the adjacent front frame longitudinal connecting plate and/or the adjacent lower frame longitudinal connecting rod; and one end of the second side frame far away from the pedal extends to the junction of the other front frame longitudinal connecting plate and the corresponding lower frame longitudinal connecting rod, and the second special-shaped hinge is connected with the adjacent front frame longitudinal connecting plate and/or the adjacent lower frame longitudinal connecting rod.

Based on the technical scheme, the pedal bracket provided by the utility model has at least the following substantial characteristics and improvements:

the pedal bracket comprises a pedal, a bottom frame, a first side frame, a second side frame, a first special-shaped hinge and a second special-shaped hinge, wherein: the first side frame and the second side frame are arranged in parallel and are perpendicular to the plane where the bottom frame is located, and one end of the first side frame and the same end of the second side frame are fixedly connected with two opposite sides of the bottom frame respectively; one end of the first side frame, which is far away from the bottom frame, is rotationally connected with the first special-shaped hinge, and one end of the second side frame, which is far away from the bottom frame, is rotationally connected with the second special-shaped hinge, and the first special-shaped hinge and the second special-shaped hinge are arranged in parallel; the footboard sets up on the underframe between two parties, is equipped with first coupling assembling on the footboard, corresponds the position on the underframe and is equipped with second coupling assembling, and first coupling assembling and second coupling assembling cooperate in order to make the position of footboard relative underframe remove, and the direction that the footboard removed is perpendicular with the line between first dysmorphism hinge and the second dysmorphism hinge. According to the pedal support, the turnover folding storage of the pedal support is realized through the first side frame and the second side frame as well as the first special-shaped hinge and the second special-shaped hinge, the first connecting component arranged on the pedal and the second connecting component arranged at the corresponding position on the bottom frame are matched to enable the pedal to move relative to the position of the bottom frame, the moving direction of the pedal is the front-back direction when the feet of a user are placed on the pedal, and even if the body and the framework of the user are large or small, the pedal can be adjusted to adapt to the femur length of the user, namely when the femur is short, the pedal is used by the user, the user can pedal the pedal in a relaxed state, and the whole sole of the user can be supported by the pedal and the back waist of the user; when a user with a long femur uses the pedal, the user can pedal the pedal in a relaxed state without pressing the rear waist by adjusting the pedal forwards; in a word, users of various shapes can place feet on the pedals comfortably and stably, and then sit on the wheelchair in a comfortable posture, so that potential safety hazards caused by knocks and falls are avoided, physical and mental health of the users is facilitated, and the wheelchair has great popularization value and wide application prospect.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of a pedal bracket provided by the utility model;

FIG. 2 is a schematic view of a bottom frame and related accessories of a pedal bracket according to the present utility model;

FIG. 3 is a schematic diagram showing a bottom frame and related accessories of the pedal bracket according to the present utility model;

FIG. 4 is a schematic diagram of a bottom frame and related accessories of the pedal bracket according to the present utility model;

FIG. 5 is a schematic view of the pedal and related accessories of the pedal bracket according to the present utility model;

FIG. 6 is a schematic diagram of a pedal and related accessories of the pedal bracket according to the present utility model;

FIG. 7 is a schematic diagram of a pedal and related accessories of the pedal bracket according to the present utility model;

FIG. 8 is a schematic diagram of a pedal and related accessories of the pedal bracket according to the present utility model;

FIG. 9 is a schematic diagram of a device equipped with a pedal bracket and a side frame and a special-shaped hinge of the pedal bracket provided by the utility model;

FIG. 10 is a schematic diagram II of a device equipped with a pedal bracket and a side frame and a special-shaped hinge of the pedal bracket provided by the utility model;

FIG. 11 is a schematic view of a wheelchair according to the present utility model;

fig. 12 is a schematic diagram of a partial structure of a wheelchair according to the present utility model.

The attached drawings are used for identifying and describing:

1. a pedal; 11. a first connection assembly; 111. a hole system; 1111. a through hole; 112. a slit hole;

2. a bottom frame; 21. a second connection assembly; 211. a limiting body; 2111. a limit seat; 2112. a limit column; 22. a front cross bar; 23. a back bending rod; 231. a vertical section; 232. parallel sections; 24. a side link;

3. a side frame; 31. a first side frame; 32. a second side frame; 33. an abutting portion;

4. a special-shaped hinge; 41. a first shaped hinge; 42. a second shaped hinge; 43. a movable end; 431. a clamping ear; 432. a rotating shaft; 44. a fixed end; 441. a welding area; 442. a fixing hole;

5. a seat;

6. a frame; 61. a lower frame longitudinal link; 62. and a front frame longitudinal connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings and examples of implementation. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. Moreover, the specific embodiments described herein are merely illustrative of the utility model and are not intended to be limiting. Furthermore, all other embodiments, which can be made by a person of ordinary skill in the art without making any inventive effort, are intended to fall within the scope of the present utility model, based on the examples provided herein.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In the present utility model, the terms "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be specifically noted that, for convenience of description, the present utility model provides: the "left", "right", "up", "down", "front", "rear", and directions parallel or substantially parallel to the left-right direction are defined as "lateral", directions parallel or substantially parallel to the front-rear direction are defined as "longitudinal", and directions parallel or substantially parallel to the up-down direction are defined as "vertical", with the line of sight starting point when the user's foot is placed on the pedal as the viewing origin.

Referring to fig. 1 to 3, in a first aspect, an embodiment of the present utility model provides a pedal bracket, including a pedal 1, a bottom frame 2, a first side frame 31, a second side frame 32, a first shaped hinge 41 and a second shaped hinge 42, wherein: the first side frame 31 and the second side frame 32 are arranged in parallel and are perpendicular to the plane where the bottom frame 2 is located, and one end of the first side frame 31 and the same end of the second side frame 32 are fixedly connected with two opposite sides of the bottom frame 2 respectively; one end of the first side frame 31 far away from the bottom frame 2 is rotationally connected with a first special-shaped hinge 41, one end of the second side frame 32 far away from the bottom frame 2 is rotationally connected with a second special-shaped hinge 42, and the first special-shaped hinge 41 and the second special-shaped hinge 42 are arranged in parallel; the footboard 1 is arranged on the underframe 2 in the middle, the first connecting component 11 is arranged on the footboard 1, the second connecting component 21 is arranged on the underframe 2 at a corresponding position, the first connecting component 11 and the second connecting component 21 are matched to enable the footboard 1 to move relative to the underframe 2, and the moving direction of the footboard 1 (such as a double-headed arrow marked at the rear part of the footboard 1 in the attached drawing) is perpendicular to a connecting line (such as a dotted line connecting the first special-shaped hinge 41 and the second special-shaped hinge 42 in the attached drawing 1) between the first special-shaped hinge 41 and the second special-shaped hinge 42.

It can be understood that the position of the conventional pedal 1 is often directly fixed on the bracket, and the shape and the framework of the user are large and small, the conventional fixed pedal is difficult to adjust in the front-rear direction to adapt to the femur length of the user, namely, the user with a shorter femur can hang the rear sole in a relaxed state, and the user can sit when the whole sole is stepped on the pedal, so that the rear waist is unsupported; the user with long femur may hang the front sole in a relaxed state, want the whole sole to be contracted and seated by stepping on the pedal, resulting in compression of the rear waist; in short, when the user is on the stationary pedal, the user is always forced to frequently move the foot position or adjust the lumbar position, and cannot sit in a comfortable posture. While the pedal bracket provided in this embodiment is folded and stored by the first side frame 31, the second side frame 32, the first special-shaped hinge 41 and the second special-shaped hinge 42, the first connecting component 11 arranged on the pedal 1 is matched with the second connecting component 21 arranged at the corresponding position on the bottom frame 2 to enable the pedal 1 to move relative to the position of the bottom frame 2, and the moving direction of the pedal 1 is the front and back direction when the feet of a user are placed on the pedal 1, even if the body and the framework of the user are small, the body and the framework of the user can be adjusted to adapt to the femur length of the user, the user with various body shapes can place the steps on the pedal 1 comfortably and steadily, and then sits on the wheelchair in a comfortable posture, so that the safety hidden danger of bumping and falling is avoided, and the physical and mental health of the user is also facilitated.

It should be noted that, the end of the first side frame 31 away from the bottom frame 2 is rotationally connected with the first special-shaped hinge 41, the end of the second side frame 32 away from the bottom frame 2 is rotationally connected with the second special-shaped hinge 42, that is, the ends of the two side frames 3 away from the pedal 1 are respectively rotationally connected with the special-shaped hinges 4, when the special-shaped hinges 4 are relatively fixed, the two side frames 3 can be controlled to rotate around the connecting line between the two special-shaped hinges (such as the dashed line connecting the first special-shaped hinge 41 and the second special-shaped hinge 42 in fig. 1), so that the pedal bracket is turned and folded, and is more convenient to store or carry. The first side frame 31 and the second side frame 32 are arranged in parallel, that is, the two side frames 3 are respectively positioned at the left side and the right side of the bottom frame 2 and are respectively fixedly connected with the left end and the right end of the bottom frame 2, and the fixed connection can be permanent type such as welding or detachable type such as screw connection and clamping connection. While the two side frames 3 are perpendicular to the plane of the bottom frame 2, i.e. the bottom frame 2 and the pedals 1 arranged on the bottom frame 2 are generally horizontal, the side frames 3 are substantially in a vertical plane; preferably, the side frames 3 extend upwardly and rearwardly so that the pedal 1 can be extended further forward.

It should be noted that, the "first side frame 31 and the second side frame 32 are disposed in parallel and are perpendicular to the plane in which the bottom frame 2 is located" and the "direction in which the pedal 1 moves is perpendicular to the line between the first shaped hinge 41 and the second shaped hinge 42" all refer to substantially perpendicular, and it is not required to have a ninety degree included angle in a mathematical sense. Similarly, the "pedal 1 is centrally disposed on the bottom frame 2" does not require that the centers of both are perfectly aligned, but that the left-right front-rear direction of the pedal 1 is substantially aligned with the left-right front-rear direction of the bottom frame 2, so that movement between the bottom frame 2 and the pedal 1 is facilitated; preferably, the width of the portion of the bottom frame 2 which extends beyond the pedal 1 is approximately equal, so that the forces are balanced in the left-right direction.

It should be noted that, the "first connecting piece" and the "second connecting piece" are respectively located on the pedal 1 and the bottom frame 2, and mainly serve to limit and change the position between the pedal 1 and the bottom frame 2 as required, as shown in fig. 1, the moving direction of the pedal 1 is substantially perpendicular to the connecting line between the first shaped hinge 41 and the second shaped hinge 42, and the connecting line between the first shaped hinge 41 and the second shaped hinge 42 is the left-right direction, so that the moving direction of the pedal 1 relative to the bottom frame 2 is the front-rear direction.

As a further example, referring to fig. 2 to 6, the first connecting assembly 11 includes at least two groups of holes 111 distributed on the pedal 1, each group of holes 111 including a plurality of through holes 1111 in equal number, the plurality of through holes 1111 being aligned in a row in a direction parallel to the direction in which the pedal 1 moves along the bottom frame 2; the second connecting component 21 includes at least two sets of limiting bodies 211 disposed on the pedal 1, each set of limiting bodies 211 is opposite to one through hole 1111 of the set of hole systems 111, and the through holes 1111 of each corresponding limiting body 211 are located at the same position in the hole systems 111. It can be understood that if only one group of the hole system 111 and the limiting body 211 are provided between the pedal 1 and the bottom frame 2, the fixation is not firm enough, and rotation or shaking may occur between the pedal 1 and the bottom frame 2; of course, if other structures (such as latches, ribs, grooves, etc.) matched with each other are provided on the surface of the pedal 1 and the bottom frame 2, only one group of hole systems 111 and limiting groups can be provided for interaction, but the overall modeling is more complex and the processing is not convenient enough; obviously, for a more stable connection, more sets of interacting hole series 111 and limiting bodies 211, such as three sets, four sets or even more sets, can be provided between the pedal 1 and the bottom frame 2 according to the size specification.

It should be noted that each set of holes 111 includes at least two through holes 1111, i.e. two adjustable gears, and three, four or more through holes 1111 may be provided according to the requirement and the size specification. While "each set of the limiting bodies 211 is opposite to one through hole 1111 of the set of the hole systems 111, the through hole 1111 of each corresponding limiting body 211 is at the same position in the hole system 111" means that the through hole 1111 of the corresponding limiting body 211 in each hole system 111 is at the same position in the respective hole system 111, such as the through hole 1111 of the corresponding limiting body 211 is at the most forward position, the most backward position or the centered position in the respective hole system 111.

Taking the pedal 1 with four sets of holes 111 and each set of holes 111 including three through holes 1111 and four sets of limiting bodies 211 correspondingly disposed on the bottom frame 2 as an example, the corresponding relationship between the first connecting component 11 and the second connecting component 21 will be explained:

as shown in FIG. 5, four groups of limiting bodies 211 on the bottom frame 2 are defined as limiting body 211[ a ], limiting body 211[ b ], limiting body 211[ c ] and limiting body 211[ d ]; as shown in fig. 6, four sets of holes 111 in the pedal 1 are defined as holes 111 a, 111 b, 111 c, 111 d, wherein three through holes 1111 from front to back in the holes 111 a are defined as holes 1111 a1, 1111 a2, 1111 a3, wherein three through holes 1111 from front to back in the holes 111 b are defined as holes 1111 b1, 1111 b2, 1111 b3, wherein three through holes 1111 from front to back in the holes 111 c are defined as holes 1111 c1, 1111 c2, 1111 c3, wherein three through holes 1111 from front to back in the holes 111 d are defined as holes 1111 d1, 1111 d2, 1111 d 3; then there are:

when the stopper 211 a corresponds to the front-most through hole 1111 a1 in the hole system 111 a, the stopper 211 b also corresponds to the front-most through hole 1111 b1 in the hole system 111 b, the stopper 211 c also corresponds to the front-most through hole 1111 c1 in the hole system 111 c, and the stopper 211 d also corresponds to the front-most through hole 1111 d1 in the hole system 111 d;

similarly, when the stopper 211 a corresponds to the rearmost through hole 1111 a3 in the hole system 111 a, the stopper 211 b also corresponds to the rearmost through hole 1111 b3 in the hole system 111 b, the stopper 211 c also corresponds to the rearmost through hole 1111 c3 in the hole system 111 c, and the stopper 211 d also corresponds to the rearmost through hole 1111 d3 in the hole system 111 d;

similarly, when the stopper 211 a corresponds to the through hole 1111 a2 in the middle position in the hole system 111 a, the stopper 211 b also corresponds to the through hole 1111 b2 in the middle position in the hole system 111 b, the stopper 211 c also corresponds to the through hole 1111 c2 in the middle position in the hole system 111 c, and the stopper 211 d also corresponds to the through hole 1111 d2 in the middle position in the hole system 111 d.

Referring to fig. 5 and 7, as a preferred embodiment, the first connecting assembly 11 includes at least two elongated holes 112 distributed on the pedal 1, each elongated hole 112 having the same length, and the length direction of each elongated hole 112 is parallel to the direction in which the pedal 1 moves along the bottom frame 2; the second connecting component 21 comprises at least two groups of limiting bodies 211 arranged on the pedal 1, wherein each group of limiting bodies 211 is opposite to one long strip hole 112, and the positions of the limiting bodies 211 in the opposite long strip holes 112 are the same. It will be appreciated that the combination of the hole system 111 and the limiting body 211 described above, since the number of through holes 1111 is constant, can be regarded as a limited level of adjustment between the pedal 1 and the bottom frame 2; the first connecting component 11 on the pedal 1 is provided with at least two elongated holes 112, and the limiting body 211 can be correspondingly matched with any position in the length direction of the elongated holes 112, so that the pedal 1 and the bottom frame 2 can be regarded as infinitely-level adjustment, and can be adjusted to the most suitable position according to the needs of a user. Similar to the hole system 111, the elongated holes 112 may be provided in three, four or more as needed and according to the size of the pedal 1, so that the pedal 1 is more firmly and firmly connected with the bottom frame 2.

It should be noted that "the positions of the respective sets of limiting bodies 211 in the opposite elongated holes 112 are the same" means that the position of a certain limiting body 211 in the corresponding elongated hole 112 is substantially the same as the position of other limiting bodies 211 in the corresponding elongated hole 112, for example, the limiting body 211 is located at the forefront position, the slightly front position, the centered position, the slightly rear position, or the rearmost position of the elongated hole 112.

Taking the steps of setting four elongated holes 112 on the pedal 1 and correspondingly setting four groups of limiting bodies 211 on the bottom frame 2 as an example, the corresponding relation between the first connecting component 11 and the second connecting component 21 is explained as follows:

as shown in FIG. 5, four groups of limiting bodies 211 on the bottom frame 2 are defined as limiting body 211[ a ], limiting body 211[ b ], limiting body 211[ c ] and limiting body 211[ d ]; as shown in FIG. 7, four elongated holes 112 in pedal 1 are defined as elongated holes 112[ A ], elongated holes 112[ B ], elongated holes 112[ C ], elongated holes 112[ D ]; then there are:

when the limiting body 211 a corresponds to the position of the long hole 112 a in front, the limiting body 211 b also corresponds to the position of the long hole 112 b in front, the limiting body 211 c also corresponds to the position of the long hole 112 c in front, and the limiting body 211 d also corresponds to the position of the long hole 112 d in front;

similarly, when the stopper 211 a corresponds to the position of the rear of the elongated hole 112 a, the stopper 211 b also corresponds to the position of the rear of the elongated hole 112 b, the stopper 211 c also corresponds to the position of the rear of the elongated hole 112 c, and the stopper 211 d also corresponds to the position of the rear of the elongated hole 112 d.

Referring to fig. 8, as a further embodiment, each set of limiting bodies 211 includes a limiting seat 2111 and a limiting post 2112, the limiting seat 2111 is disposed on the bottom frame 2, and the limiting post 2112 at least partially passes through the corresponding through hole 1111 or the elongated hole 112 and is then inserted into the limiting seat 2111 and is detachably connected with the limiting seat 2111. It is to be appreciated that the stop seat 2111 may be provided on the bottom frame 2 to fix the stop post 2112, and the stop post 2112 passes through the through hole 1111 or the elongated hole 112 to fix the pedal 1. Optionally, the limiting seat 2111 may be a screw hole, a nut, or a bayonet; correspondingly, the stop posts 2112 may be bolts, detents, or the like. Preferably, the limiting seat 2111 is a rivet nut rivet-driven in a hole formed in the bottom frame 2, the limiting post 2112 is a countersunk bolt, and the corresponding through hole 1111 or the long strip hole 112 is provided with a countersunk platform so as to accommodate the head of the bolt, thereby enabling the upper surface of the pedal 1 to be flat and further facilitating the stable placement of the feet of a user.

Referring to fig. 8, as a further embodiment, the bottom frame 2 includes at least a front cross bar 22, where one end of the front cross bar 22 is fixedly connected to a first side frame 31, and the other end is fixedly connected to a second side frame 32; when the second connecting component 21 includes two sets of limiting bodies 211, the first set of limiting bodies 211 is disposed on the cross bar and is close to the first side frame 31, and the second set of limiting bodies 211 is disposed on the cross bar and is close to the second side frame 32. It will be appreciated that the bottom frame 2 includes a front cross bar 22, and that when the pedal 1 and the bottom frame 2 are connected by two sets of connection assemblies, the two sets of limiting bodies 211 are disposed on the front cross bar 22 in a left-right manner so as to be stressed uniformly.

With continued reference to fig. 8, as a preferred embodiment, the bottom frame 2 further comprises a back bent bar 23 and two side links 24, wherein: the rear curved bar 23 comprises two vertical sections 231 perpendicular to the front rail 22 and a parallel section 232 between the two vertical sections 231 and parallel to the front rail 22; one side link 24 is located between one vertical section 231 and the first side frame 31, and the other side link 24 is located between the other vertical section 231 and the second side frame 32; when the second connecting component 21 includes more than two sets of limiting bodies 211, the limiting bodies 211 other than the first two sets are located on the parallel section 232. It can be understood that the back bending rod 23 and the side connecting rod 24 are arranged, so that the contact area of the bottom frame 2 and the pedal 1 is larger, the connecting nodes are more and more stable; at this time, if three, four or more connection assemblies are provided, two of the limiting bodies 211 are still disposed left and right on the front rail 22, and the remaining limiting bodies 211 are disposed at intervals on the parallel section 232. It should be noted that, the vertical section 231 is substantially perpendicular to the front rail 22, and the parallel section 232 is also substantially parallel to the front rail 22, but has a general shape, and does not need to satisfy an absolute positional relationship in a mathematical sense; preferably, the two vertical sections 231 and the parallel section 232 are integrally formed, and the two vertical sections 231 are smoothly transitioned with the two ends of the parallel section 232 respectively. In addition, the provision of the back bent lever 23 and the side links 24, rather than the entire lever similar to the front cross bar 22, can reduce the size, weight, and raw material saving of the side frames 3.

As a further example, with reference to fig. 9 and 10, the first shaped hinge 41 and the second shaped hinge 42 are both block-shaped and identical in structure, comprising a movable end 43 connected to the first side frame 31 or the second side frame 32 and a fixed end 44 for connecting to a device equipped with a pedal bracket, wherein: the movable end 43 comprises two clamping lugs 431, the first side frame 31 or the second side frame 32 is clamped between the two clamping lugs 431, and a rotating shaft 432 penetrating through the two clamping lugs 431 and the first side frame 31 or the second side frame 32 is arranged at the overlapping position of the two clamping lugs 431 and the first side frame 31 or the second side frame 32; the fixed end 44 includes a welding area 441 for connection to a device equipped with a pedal bracket, the welding area 441 being located on a side of the fixed end 44 parallel to the rotation shaft 432; the first side frame 31 or the second side frame 32 extends from between the two holding lugs 431 toward a side away from the movable end 43 along a normal direction of the welding area 441 to form an abutting portion 33, and the abutting portion 33 abuts against a bottom portion of a portion of the pedal bracket-equipped device connected to the welding area 441.

It will be appreciated that the shaped hinge 4 comprises a movable end 43, the movable end 43 is connected with the side frame 3 through two clamping lugs 431 and a rotating shaft 432 penetrating between the clamping lugs 431, so that the side frame 3 can rotate around the rotating shaft 432, and the overall size of the device equipped with the pedal bracket can be reduced by rotating the side frame 3 when needed. The special-shaped hinge 4 comprises a fixed end 44 to be connected with a device provided with a pedal bracket, such as a wheelchair, especially an electric wheelchair with a front-back folding function, wherein the side frame 3 or the special-shaped hinge 4 is welded on the side wall of a certain tube body of the frame, and the welding defect is highly likely to occur due to the small wall thickness of the tube body, so that the service life is influenced; the special-shaped hinge 4 of the utility model is provided with the welding area 441 at the side surface, namely, is welded with the end surface of a certain tube body of the frame, thereby greatly reducing the possibility of occurrence of welding defects, and not only being firmly connected, but also being convenient to operate.

It should be noted that, the side frame 3 extends from between the two clamping lugs 431 along the normal direction of the welding area 441 toward the side far from the movable end 43 to form an abutting portion 33, and the abutting portion 33 abuts against the bottom of the portion of the pedal bracket device connected to the welding area 441; that is, the portion of the side frame 3 between the two clamping lugs 431, one side close to the welding area 441 protrudes to the space outside the two clamping lugs 431, so as to form an abutting portion 33 beyond the space of the two clamping lugs 431, when the pedal bracket is connected to a device where the pedal bracket needs to be configured, the abutting portion 33 abuts against the bottom of the portion of the structure where the device is welded to the welding area 441, thereby playing a role of limiting the side frame 3, and also ensuring the stability of the pedal bracket.

With continued reference to fig. 9 and 10, the fixed end 44 also includes, as a preferred embodiment, a securing aperture 442 for securing with a device equipped with a pedal bracket, the securing aperture 442 extending through the fixed end 44 and parallel to the rotational axis 432. It will be appreciated that when the pedal bracket is connected to a device where the pedal bracket is to be disposed, the fixing end 44 is provided with a fixing hole 442 so as to be fixedly connected with the device equipped with the pedal bracket by penetrating a fastener such as a bolt or a bolt, so that the stress of the welding area 441 can be shared, the reliability of connection is ensured, and even if the welding area 441 fails, the fixing hole 442 is also used as a safety guarantee.

Referring to fig. 11 and 12, in a second aspect, an embodiment of the present utility model provides a wheelchair comprising at least a seat 5 and a frame 6, at least part of the frame 6 being located below the seat 5; the pedal bracket further comprises at least one end of the first special-shaped hinge 41 far away from the first side frame 31 and one end of the second special-shaped hinge 42 far away from the second side frame 32, which are fixedly connected with the frame 6, and at least most of the pedals 1 extend out of the lower part of the seat 5. It can be understood that the pedal support provided by the embodiment of the utility model is suitable for wheelchairs, especially electric wheelchairs with folding front and back directions, of course, other devices such as disabled seats, child seats, interrogation seats and the like which expect that feet of users with different shapes can be placed stably, even other devices such as sewing machines, piano stools, double-row keys, workbenches and the like which need to place feet, can also be provided with the pedal support. It should be noted that the two shaped hinges 4 are connected to the frame 6 from left to right, and the two side frames 3 extend toward the front lower side away from the seat 5, so that at least most of the pedals 1 protrude below the seat 5, and further, the feet of the user can be placed on the pedals 1.

With continued reference to fig. 11 and 12, the frame 6 preferably includes at least two lower longitudinal links 61 located below the seat 5 and a front longitudinal link plate 62 for the front wheels; the two lower frame longitudinal links 61 are arranged in parallel and are respectively positioned at two sides below the seat 5, the two front frame longitudinal connecting plates 62 and the two lower frame longitudinal links 61 are arranged in parallel in the same direction, and the two lower frame longitudinal links 61 are arranged between the two front frame longitudinal connecting plates 62; the first side frame 31 extends to the junction of a certain front frame longitudinal connecting plate 62 and a corresponding lower frame longitudinal connecting rod 61 at the end far away from the pedal 1, and the first special-shaped hinge 41 is connected with the adjacent front frame longitudinal connecting plate 62 and/or the adjacent lower frame longitudinal connecting rod 61; the second side frame 32 extends at an end remote from the step 1 to the junction of the other front longitudinal frame panel 62 and the corresponding lower longitudinal frame link 61, and the second shaped hinge 42 is connected to the adjacent front longitudinal frame panel 62 and/or the adjacent lower longitudinal frame link 61.

It will be appreciated that the left first side frame 31 extends to the junction of the left lower frame rail 61 and the left front frame rail 62, the welding area 441 of the first shaped hinge 41 is welded to the end of the left lower frame rail 61, and the abutment 33 of the first side frame 31 abuts against the bottom outer side wall of the left lower frame rail 61; the right second side frame 32 extends to the junction of the right lower frame rail 61 and the right front frame rail 62, the welding area 441 of the second shaped hinge 42 is welded to the end of the right lower frame rail 61, and the abutting portion 33 of the second side frame 32 abuts against the bottom outer side wall of the right lower frame rail 61. Preferably, the fastening member is inserted into the fixing hole 442 of the first shaped hinge 41 to be fixedly connected with the right side surface of the left front frame longitudinal plate 62; the fastening member is inserted into the fastening hole 442 of the second shaped hinge 42 to be fixedly connected with the left side surface of the front frame longitudinal plate 62 on the right side.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (11)

1. The utility model provides a pedal support, its characterized in that includes footboard (1), underframe (2), first side frame (31), second side frame (32) and first dysmorphism hinge (41) and second dysmorphism hinge (42), wherein:

the first side frame (31) and the second side frame (32) are arranged in parallel and are perpendicular to the plane where the bottom frame (2) is located, and one end of the first side frame (31) and the same end of the second side frame (32) are fixedly connected with two opposite sides of the bottom frame (2) respectively;

one end, far away from the bottom frame (2), of the first side frame (31) is rotationally connected with the first special-shaped hinge (41), one end, far away from the bottom frame (2), of the second side frame (32) is rotationally connected with the second special-shaped hinge (42), and the first special-shaped hinge (41) and the second special-shaped hinge (42) are arranged in parallel;

the pedal (1) set up in the middle on underframe (2), be equipped with first coupling assembling (11) on pedal (1), corresponding position is equipped with second coupling assembling (21) on underframe (2), first coupling assembling (11) with second coupling assembling (21) cooperate so that pedal (1) is relative the position of underframe (2) removes, the direction that pedal (1) removed with the line between first dysmorphism hinge (41) with second dysmorphism hinge (42) is perpendicular.

2. Pedal bracket according to claim 1, characterized in that said first connecting assembly (11) comprises at least two groups of holes (111) distributed on said pedal (1), each group of holes (111) comprising a plurality of through holes (1111) equal in number, a plurality of said through holes (1111) being aligned and aligned in a direction parallel to the direction of movement of said pedal (1) along said bottom frame (2);

the second connecting assembly (21) comprises at least two groups of limiting bodies (211) arranged on the pedal (1), each group of limiting bodies (211) is opposite to one through hole (1111) in one group of hole systems (111), and the through holes (1111) corresponding to the limiting bodies (211) are positioned at the same position in the hole systems (111).

3. Pedal bracket according to claim 1, characterized in that said first connection assembly (11) comprises at least two elongated holes (112) distributed on said pedal (1), each elongated hole (112) having the same length, and the length direction of each elongated hole (112) being parallel to the direction of movement of said pedal (1) along said bottom frame (2);

the second connecting assembly (21) comprises at least two groups of limiting bodies (211) arranged on the pedal (1), each group of limiting bodies (211) is opposite to one long strip hole (112), and the positions of each group of limiting bodies (211) in the opposite long strip holes (112) are the same.

4. The pedal bracket according to claim 2, wherein each set of the limiting bodies (211) comprises a limiting seat (2111) and a limiting post (2112), the limiting seat (2111) is arranged on the bottom frame (2), and the limiting post (2112) at least partially penetrates through the corresponding through hole (1111) and is then inserted into the limiting seat (2111) and is detachably connected with the limiting seat (2111).

5. A pedal bracket according to claim 3, wherein each set of the limiting bodies (211) comprises a limiting seat (2111) and a limiting post (2112), the limiting seats (2111) are arranged on the bottom frame (2), and the limiting posts (2112) at least partially penetrate through the corresponding elongated holes (112) and are reinserted into the limiting seats (2111) and form detachable connection with the limiting seats (2111).

6. Pedal bracket according to claim 4 or 5, characterized in that the bottom frame (2) comprises at least a front cross bar (22), one end of the front cross bar (22) being fixedly connected with the first side frame (31) and the other end being fixedly connected with the second side frame (32);

when the second connecting assembly (21) comprises two groups of limiting bodies (211), a first group of limiting bodies (211) are arranged on the cross rod and are close to the first side frames (31), and a second group of limiting bodies (211) are arranged on the cross rod and are close to the second side frames (32).

7. Pedal bracket according to claim 6, characterized in that the bottom frame (2) further comprises a back bent bar (23) and two side links (24), wherein:

the back bending bar (23) comprises two vertical sections (231) perpendicular to the front cross bar (22) and a parallel section (232) located between the two vertical sections (231) and parallel to the front cross bar (22);

one of the side links (24) is located between one of the vertical segments (231) and the first side frame (31), and the other of the side links (24) is located between the other of the vertical segments (231) and the second side frame (32);

when the second connecting component (21) comprises more than two groups of limiting bodies (211), the other limiting bodies (211) except the first two groups are positioned on the parallel section (232).

8. Pedal bracket according to claim 1, characterized in that the first shaped hinge (41) and the second shaped hinge (42) are both block and structurally identical, comprising a movable end (43) connected to the first side frame (31) or the second side frame (32) and a fixed end (44) for connection to a device equipped with the pedal bracket, wherein:

the movable end (43) comprises two clamping lugs (431), the first side frame (31) or the second side frame (32) is clamped between the two clamping lugs (431), and a rotating shaft (432) penetrating through the two clamping lugs (431) and the first side frame (31) or the second side frame (32) is arranged at the overlapping position of the two clamping lugs (431);

the fixed end (44) comprises a welding area (441) for connection to a device equipped with the pedal support, the welding area (441) being located on the side of the fixed end (44) parallel to the rotation axis (432);

the first side frame (31) or the second side frame (32) extends from between the two clamping lugs (431) along the normal direction of the welding area (441) towards the side far away from the movable end (43) to form an abutting part (33), and the abutting part (33) abuts against the bottom of the part of the pedal bracket device connected with the welding area (441).

9. The pedal bracket according to claim 8, characterized in that the fixed end (44) further comprises a fixing hole (442) for fixing with a device equipped with the pedal bracket, the fixing hole (442) penetrating the fixed end (44) and being parallel to the rotation axis (432).

10. Wheelchair, characterized in that it comprises at least a seat (5) and a frame (6), at least part of said frame (6) being located under said seat (5);

pedal support according to any one of claims 1-8, wherein at least one end of the first shaped hinge (41) away from the first side frame (31) and one end of the second shaped hinge (42) away from the second side frame (32) are fixedly connected with the frame (6), and at least a majority of the pedal (1) protrudes out below the seat (5).

11. Wheelchair according to claim 10, characterised in that the frame (6) comprises at least two lower frame longitudinal links (61) under the seat (5) and a front frame longitudinal link plate (62) for the front wheels;

the two lower frame longitudinal links (61) are arranged in parallel and are respectively positioned at two sides below the seat (5), the two front frame longitudinal plates (62) and the two lower frame longitudinal links (61) are arranged in parallel in the same direction, and the two lower frame longitudinal links (61) are arranged between the two front frame longitudinal plates (62);

one end of the first side frame (31) far away from the pedal (1) extends to the junction of one front frame longitudinal connecting plate (62) and the corresponding lower frame longitudinal connecting rod (61), and the first special-shaped hinge (41) is connected with the adjacent front frame longitudinal connecting plate (62) and/or the adjacent lower frame longitudinal connecting rod (61);

the second side frame (32) extends to the junction of the other front frame longitudinal connecting plate (62) and the corresponding lower frame longitudinal connecting rod (61) far away from one end of the pedal (1), and the second special-shaped hinge (42) is connected with the adjacent front frame longitudinal connecting plate (62) and/or the adjacent lower frame longitudinal connecting rod (61).