CN214968173U - Shifting machine with movable knee backrest - Google Patents

Abstract

The utility model discloses a shifter with a movable knee rest, which comprises a left lifting connecting rod and a right lifting connecting rod which are parallel to each other, wherein the middle lower part of each lifting connecting rod is provided with a linkage pin which is clamped in a through hole of an approximate L shape of a hanging plate, the hanging plate is fixedly connected with a movable support, the upper end of the movable support is hinged with the middle part of a knee rest fixing rod, the lower end of the movable support is hinged with the upper end of the knee rest support, and the knee rest is arranged on the knee rest fixing rod; the lower ends of the two lifting connecting rods are fixedly connected with a hinge shaft, and the left end and the right end of the hinge shaft are respectively hinged with the vertical surfaces of the left L-shaped connecting plate and the right L-shaped connecting plate; the upper parts of the vertical surfaces of the two connecting plates are respectively hinged with the lower end of a knee rest connecting piece, and the upper end of the knee rest connecting piece is hinged with the middle part of a knee rest fixing rod; the lower part of the knee rest bracket is fixed with the pedal. The utility model discloses a aversion machine can guarantee that user's both legs are whole to be laminated on the knee is leaned on, has improved user's comfort.

Description

Shifting machine with movable knee backrest

Technical Field

The utility model relates to a barrier-free shifting apparatus field especially relates to a shifting machine.

Background

The shifting machine can help people who are inconvenient to move to shift positions from a wheelchair to sofas, beds, toilet bowls, seats and the like, and can also help the people to solve a series of living problems such as toileting, bathing and the like.

At present, the machine of shifting on the market is the suspender formula mostly, need hold up the user earlier when shifting patient, put the string bag or the suspender below user's health again, then hang the suspender of string bag or suspender on the lifting hook, the operation is gone up and down again, and is more time-consuming and energy-consuming, arouses user's discomfort moreover easily.

CN2020227553292 discloses a backpack shifting machine, which comprises a left lifting connecting rod and a right lifting connecting rod which are parallel to each other, wherein the upper ends of the two lifting connecting rods are hinged with the back of a chest backup plate; the middle upper parts of the two lifting connecting rods are connected through two parallel horizontal connecting rods, a hinge fixing piece is fixed between the two horizontal connecting rods and is hinged with the upper end of a lifting motor, and a screw rod of the lifting motor is hinged with a hinge sheet on an upright post in the middle of the front end of the pedal; the lower ends of the two lifting connecting rods are fixedly connected with a hinge shaft, and the left end and the right end of the hinge shaft are respectively hinged with the vertical surfaces of the left L-shaped connecting plate and the right L-shaped connecting plate; the vertical surfaces of the two connecting plates are respectively fixedly connected with a knee rest support, and the lower part of the knee rest support is fixed with the pedal.

However, in the use process of the device, the knee rest is in a fixed structure, and the legs of the user cannot be in a completely vertical state all the time, so that the fixed knee rest generates continuous compression on the lower leg of the user, and the user feels very uncomfortable.

Therefore, it is necessary to develop a shifter for a movable knee rest.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a machine of shifting with movable knee is leaned on.

In order to achieve the above object, the utility model discloses a technical scheme specifically as follows:

a shifter with a movable knee rest comprises a left lifting connecting rod and a right lifting connecting rod which are parallel to each other, wherein a linkage pin is arranged at the middle lower part of each lifting connecting rod, the linkage pin is clamped in an approximately L-shaped through hole of a hanging plate, the hanging plate is fixedly connected with a movable support, the upper end of the movable support is hinged with the middle part of a knee rest fixing rod, the lower end of the movable support is hinged with the upper end of the knee rest support, and the knee rest is arranged on the knee rest fixing rod;

the lower ends of the two lifting connecting rods are fixedly connected with a hinge shaft, and the left end and the right end of the hinge shaft are respectively hinged with the vertical surfaces of the left L-shaped connecting plate and the right L-shaped connecting plate; the upper parts of the vertical surfaces of the two connecting plates are respectively hinged with the lower end of a knee rest connecting piece, and the upper end of the knee rest connecting piece is hinged with the middle part of a knee rest fixing rod; the lower part of the knee rest bracket is fixed with the pedal.

The upper ends of the two lifting connecting rods are hinged with the back of the chest backup plate; the middle upper parts of the two lifting connecting rods are connected through two parallel horizontal connecting rods, a hinged fixing piece is fixed between the two horizontal connecting rods and hinged to the upper end of a lifting motor, and the lower end of the lifting motor is hinged to a hinged sheet on the stand column in the middle of the front end of the pedal.

When the screw of the lifting motor is in a contraction state, the lifting connecting rod falls down, the linkage pin on the lifting connecting rod is positioned at the lower end of the through hole, the linkage pin presses the hanging plate, and the movable support and the knee rest are fallen down by the connecting piece, so that the knee rest is horizontal by the fixed rod and the knee rest is vertical.

When a screw rod of the lifting motor is in an extending state, the lifting connecting rod is lifted, the linkage pin on the lifting connecting rod is positioned at the upper end of the through hole, the linkage pin pulls the hanging plate, and the movable support and the knee rest connecting piece are lifted, so that the knee rest is inclined by the fixed rod and the knee rest is inclined upwards.

Wherein, the lower bottom surfaces of the middle upper parts of the two lifting connecting rods are respectively fixed with a fixing piece; the left side and the right side of the back of the chest backup plate are respectively hinged with a connecting rod, the other ends of the two connecting rods are respectively hinged with a connecting sheet, and the two connecting sheets are hinged with a hinge shaft penetrating through the two fixing sheets; and a parallel connecting rod is hinged to a hinged point of one connecting piece and the connecting rod, and the lower end of the parallel connecting rod is hinged to a hinged piece on the upright column in the middle of the front end of the pedal.

The bottom surfaces of the two connecting plates are respectively provided with a central control caster, the upper parts of the central control casters are provided with brake connecting rods, and the brake connecting rods penetrate through the vertical surfaces of the connecting plates and are connected with a brake pedal.

The stand column on the pedal is fixedly connected with the left connecting rod and the right connecting rod, and the other ends of the two connecting rods are respectively fixedly connected with the middle parts of the left knee rest support and the right knee rest support.

Wherein, 4 universal wheels are arranged at four corners of the bottom surface of the pedal.

And the motor controllers are fixed at the lower parts of the two lifting connecting rods and can control the extension and contraction of the screw rods of the lifting motors and the steering of the central control caster.

When the brake pedal falls down, the brake connecting rod is driven to enable the central control caster to be in a locking state; when the brake pedal is lifted, the brake connecting rod is driven to enable the central control caster to be in a free state.

Wherein, the two fixing pieces are respectively fixed with a left handrail and a right handrail; the left side and the right side of the chest backup plate are respectively provided with an arm support, the arm support is movably connected with the chest backup plate, and when the two arm supports are pressed, the two arms rotate downwards and inwards to clamp a user.

Wherein, the middle parts of the two lifting connecting rods are provided with a safety belt for fixing a user.

Compared with the prior art, the utility model discloses an outstanding effect lies in:

the utility model discloses a aversion machine has improved the structure that the knee was located, adopts movable structure, and along with the rising and the decline of aversion machine, the position that the knee was leaned on and inclination also can change thereupon, has guaranteed that user's both legs are whole can all to laminate and lean on at the knee, has improved user's comfort.

The present invention will be further explained with reference to the drawings and the embodiments.

Drawings

FIG. 1 is a front view of a shifter with a movable knee rest;

FIG. 2 is a perspective view of a shifter with a movable knee rest;

FIG. 3 is a partial schematic view of a shifter with a movable knee rest;

FIG. 4 is another partial schematic view of the shifter with a movable knee rest;

FIG. 5 is a further partial schematic view of the shifter with a movable knee rest;

figure 6 is a top view of a shifter with a movable knee rest.

The device comprises a lifting connecting rod 1, a lifting connecting rod 2, a linkage pin 3, a hanging plate 4, a movable support 5, a knee rest fixing rod 6, a connecting plate 7, a knee rest support 8, a pedal 9, a knee rest 10, a lifting motor 11, a hinged sheet 12, a parallel connecting rod 13, a chest rest plate 14, a connecting sheet 15, a fixing sheet 16, a horizontal connecting rod 17, a hinged fixing member 18, a hinged shaft 19, a brake pedal 20, a brake connecting rod 21, a knee rest connecting sheet 22 and a connecting rod 23.

Detailed Description

As shown in fig. 1-6, a shifter with a movable knee backrest comprises a left lifting connecting rod 1 and a right lifting connecting rod 1 which are parallel to each other, wherein a linkage pin 2 is arranged at the middle lower part of each lifting connecting rod 1, the linkage pin 2 is clamped in an approximately L-shaped through hole of a hanging plate 3, the hanging plate 3 is fixedly connected with a movable support 4, the upper end of the movable support 4 is hinged with the middle part of a knee backrest fixing rod 5, the lower end of the movable support 4 is hinged with the upper end of a knee backrest support 7, and a knee backrest 9 is arranged on the knee backrest fixing rod 5;

the lower ends of the two lifting connecting rods 1 are fixedly connected with a hinge shaft 19, and the left end and the right end of the hinge shaft 19 are respectively hinged with the vertical surfaces of the left L-shaped connecting plate 6 and the right L-shaped connecting plate 6; the upper parts of the vertical surfaces of the two connecting plates 6 are respectively hinged with the lower end of a knee rest connecting piece 22, and the upper end of the knee rest connecting piece 22 is hinged with the middle part of the knee rest fixing rod 5; the lower part of the knee rest bracket 7 is fixed with the pedal 8.

The upper ends of the two lifting connecting rods 1 are hinged with the back of the breast backup plate 13; the middle upper parts of the two lifting connecting rods 1 are connected through two parallel horizontal connecting rods 17, a hinged fixing piece 18 is fixed between the two horizontal connecting rods 17, the hinged fixing piece 18 is hinged to the upper end of the lifting motor 10, and the lower end of the lifting motor 10 is hinged to the hinged sheet 11 on the upright column in the middle of the front end of the pedal 8.

The lower bottom surfaces of the middle upper parts of the two lifting connecting rods 1 are respectively fixed with a fixing piece 16; the left side and the right side of the back of the chest backup plate 13 are respectively hinged with a connecting rod 14, the other ends of the two connecting rods 14 are respectively hinged with a connecting piece 15, and the two connecting pieces 15 are hinged with a hinge shaft penetrating through two fixing pieces 16; a parallel connecting rod 12 is hinged to a hinged point of one connecting piece 15 and the connecting rod 14, and the lower end of the parallel connecting rod 12 is hinged to a hinged piece 11 on the upright post in the middle of the front end of the pedal 8.

When the screw of the lifting motor 10 is in a contraction state, the lifting connecting rod 1 falls down, the linkage pin 2 on the lifting connecting rod 1 is positioned at the lower end of the through hole, the linkage pin 2 presses the hanging plate 3, and the movable support 4 and the knee rest connecting piece 22 fall down, so that the knee rest fixing rod 5 is horizontal and the knee rest 9 is vertical.

When a screw of the lifting motor 10 is in an extending state, the lifting connecting rod 1 is lifted, the linkage pin 2 on the lifting connecting rod 1 is positioned at the upper end of the through hole, the linkage pin 2 pulls up the hanging plate 3, and the movable support 4 and the knee rest connecting piece 22 are lifted up, so that the knee rest fixing rod 5 is inclined, and the knee rest 9 is inclined upwards.

The bottom surfaces of the two connecting plates 6 are respectively provided with a central control caster, the upper parts of the central control casters are provided with brake connecting rods 21, and the brake connecting rods 21 penetrate through the vertical surfaces of the connecting plates 6 to be connected with a brake pedal 20.

The upright column on the pedal 8 is fixedly connected with the left and right connecting rods 23, and the other ends of the two connecting rods 23 are respectively fixedly connected with the middle parts of the left and right knee rest brackets 7.

Four corners of the bottom surface of the pedal 8 are provided with 4 universal wheels.

The lower parts of the two lifting connecting rods 1 are fixedly provided with motor controllers which can control the extension and contraction of screw rods of the lifting motors and the steering of the central control caster.

When the brake pedal 20 falls down, the brake connecting rod 21 is driven to enable the central control caster to be in a locking state; when the brake pedal 20 is lifted, the brake connecting rod 21 is driven to enable the central control caster to be in a free state.

The two fixing pieces 16 are respectively fixed with a left handrail and a right handrail; the left side and the right side of the chest backup plate are respectively provided with an arm support, the arm support is movably connected with the chest backup plate, and when the two arm supports are pressed, the two arms rotate downwards and inwards to clamp a user. The middle parts of the two lifting connecting rods 1 are provided with a safety belt for fixing a user.

The working method of the shifting machine with the movable knee backrest comprises the following steps:

when the device is used, a user is firstly supported to turn up and sit beside a bed or beside a seat, the shifter is pushed over, the brake pedal is stepped down, and the central control caster is in a braking state; putting the feet of the user on the pedal, confirming that the heels of the user are close to the rear end of the pedal, and the knees are tightly propped against the knees; then assisting the chest of the user to be tightly attached to a chest backup plate of the shifting machine;

by controlling the extension and retraction of the lifting motor, the whole clamping and holding device of the adjustable shifter can be adjusted to move up and down and back and forth.

When the lifting motor is contracted, the lifting connecting rod 1 is driven to move downwards and backwards by taking the hinge shaft 19 as a rotating shaft, and the parallel connecting rod 12 moves downwards and backwards along with the hinge shaft, so that the connecting rod 14 is driven, and the chest backup plate and the handrail are driven to move (wherein, the opening of the shifting machine is supposed to face backwards). At the moment, the linkage pin 2 on the lifting connecting rod 1 also moves to the lower end of the L-shaped through hole, presses the hanging plate 3 to move downwards and backwards, and further drives the movable support 4 and the knee backrest connecting piece 22 to move, so that the knee backrest fixing rod 5 drives the knee backrest 9 to change the inclination angle. Otherwise, the same principle is applied.

Then the safety belt is wound around the lower part of the hip of the user and is fastened and fixed; and the shifting machine is lifted, and the user can completely lie on the shifting machine just like the shifting machine is carried on the back of the user. Then the brake pedal is lifted, and the worker pushes the shifting machine to a specified position.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above-mentioned embodiments are only described for the preferred embodiments of the present invention, but not for limiting the scope of the present invention, and those skilled in the art should not be limited to the modifications and improvements made by the technical solution of the present invention without departing from the spirit of the present invention.

Claims (6)

1. The utility model provides a machine of shifting with movable knee is leaned on which characterized in that: the knee-rest mechanism comprises a left lifting connecting rod (1) and a right lifting connecting rod (1) which are parallel to each other, wherein a linkage pin (2) is arranged at the middle lower part of each lifting connecting rod (1), the linkage pin (2) is clamped in an approximately L-shaped through hole of a hanging plate (3), the hanging plate (3) is fixedly connected with a movable support (4), the upper end of the movable support (4) is hinged with the middle part of a knee-rest fixing rod (5), the lower end of the movable support (4) is hinged with the upper end of a knee-rest support (7), and a knee-rest (9) is arranged on the knee-rest fixing rod (5);

the lower ends of the two lifting connecting rods (1) are fixedly connected with a hinge shaft (19), and the left end and the right end of the hinge shaft (19) are respectively hinged with the vertical surfaces of the left L-shaped connecting plate (6) and the right L-shaped connecting plate (6); the upper parts of the vertical surfaces of the two connecting plates (6) are respectively hinged with the lower end of a knee rest connecting piece (22), and the upper end of the knee rest connecting piece (22) is hinged with the middle part of the knee rest fixing rod (5); the lower part of the knee rest bracket (7) is fixed with the pedal (8).

2. The shifter with a movable knee rest of claim 1, wherein: the upper ends of the two lifting connecting rods (1) are hinged with the back of the chest backup plate (13); the middle upper parts of the two lifting connecting rods (1) are connected through two horizontal connecting rods (17) which are parallel to each other, a hinged fixing piece (18) is fixed between the two horizontal connecting rods (17), the hinged fixing piece (18) is hinged to the upper end of the lifting motor (10), and the lower end of the lifting motor (10) is hinged to a hinged sheet (11) on the upright column in the middle of the front end of the pedal (8).

3. The shifter with a movable knee rest of claim 2, wherein: when the screw of the lifting motor (10) is in a contraction state, the lifting connecting rod (1) falls down, the linkage pin (2) on the lifting connecting rod (1) is positioned at the lower end of the through hole, the linkage pin (2) presses the hanging plate (3), the movable support (4) and the knee are pressed by the connecting piece (22) to fall down, so that the knee is horizontally leaned by the fixing rod (5), and the knee is vertically leaned by the fixing rod (9).

4. The shifter with a movable knee rest of claim 2, wherein: when a screw of the lifting motor (10) is in an extending state, the lifting connecting rod (1) is lifted, the linkage pin (2) on the lifting connecting rod (1) is located at the upper end of the through hole, the linkage pin (2) pulls up the hanging plate (3), the movable support (4) and the knee rest connecting piece (22) are lifted, and the knee rest fixing rod (5) and the knee rest (9) are inclined upwards.

5. The shifter with a movable knee rest of claim 3 or 4, wherein: the lower bottom surfaces of the middle upper parts of the two lifting connecting rods (1) are respectively fixed with a fixing piece (16); the left side and the right side of the back of the chest backup plate (13) are respectively hinged with a connecting rod (14), the other ends of the two connecting rods (14) are respectively hinged with a connecting piece (15), and the two connecting pieces (15) are hinged with a hinge shaft penetrating through the two fixing pieces (16); a parallel connecting rod (12) is hinged to a hinged point of one connecting piece (15) and the connecting rod (14), and the lower end of the parallel connecting rod (12) is hinged to a hinged piece (11) on the upright column in the middle of the front end of the pedal (8).

6. The shifter with a movable knee rest of claim 5, wherein: the upright posts on the pedal (8) are fixedly connected with the left connecting rod (23) and the right connecting rod (23), and the other ends of the two connecting rods (23) are respectively fixedly connected with the middle parts of the left knee rest support (7) and the right knee rest support (7).

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