CN112006865A - Multifunctional footrest frame - Google Patents

Abstract

The invention belongs to the technical field of medical devices, and particularly discloses a multifunctional footrest, comprising first to seventh pads; sliding connections between the first pad and the second pad, the third pad and the second pad; the fourth pad Up to seven cushion blocks are all U-shaped; the two opposite side plates of the fourth cushion block are sleeved and connected to the left and right sides of the third cushion block by sliding; the second cushion block is divided into left and right cushion blocks; the first cushion block to the fourth cushion block The block constitutes the upper cushion block; a groove is set on the upper end surface of the upper cushion block, and the groove tracks of the groove pass through the first cushion block to the fourth cushion block respectively; a cross telescopic mechanism is set in the groove, which can make the opening of the groove change. Larger or smaller; the two opposite side plates of the fifth to seventh spacers are provided with a number of helical holes vertically and equally spaced, which can match the second grooves opened on the left and right outer walls of the first, second and fourth spacers , and connected by bolts. The advantage is that the size, height and length of the footrest can be adjusted flexibly, and the operation is convenient.

Description

multifunctional footrest

technical field

The invention belongs to the technical field of medical appliances, in particular to a multifunctional footrest.

Background technique

Currently, for burn patients, especially those on the legs, new skin needs to be transplanted into the traumatic location, called a flap. However, it takes a long time for the new skin to grow in the position of the flap, and the patient needs to stay in bed, especially in winter, it is cold, and the quilt will be pressed against the flap position. It will affect the recovery of the patient and the growth of the patient's new skin. For this reason, we designed a multifunctional footrest to keep the legs free from pressure.

Retrieved prior art: Chinese patent CN201520777776.4 Supporting and adjusting device after skin flap transfer, the invention discloses a support and adjusting device after skin flap transfer, including a leg-lifting pad main body, the upper surface of the leg-lifting pad main body and the back side of the leg The skin grafting part is cut out in the middle of the leg-lifting pad body, and the skin-grafting part venting groove is opened on the upper surface of the leg-lifting pad body. When the affected limb is placed on the leg-lifting pad body, the skin grafting part of the affected limb is just right It is located above the venting groove of the skin grafting part. The venting groove of the skin grafting part is equipped with a filler. The four walls and bottom of the venting groove of the skin grafting part are provided with Velcro surfaces. The four walls and bottom of the filler body are also provided with Velcro surfaces accordingly. The Velcro is fixed in the venting slot of the skin graft. The advantages of the invention are that the operation is simple, convenient, suitable for a wide range of people, and has the function of adjustment. The disadvantage is that the flexibility is not high, it is difficult to meet patients with different leg shapes, and the comfort is not high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a multifunctional footrest in view of the above problems. The height of the footrest can be adjusted, the size of the groove can be adjusted flexibly to meet the needs of patients with different leg shapes, and the flap can be suspended in the air. It can prevent ventilation and accelerate the healing of the skin flap, and can adjust the size of the suspension according to the size of the skin flap, making it more adaptable.

In order to achieve the above object, the technical scheme adopted in the present invention is:

The multifunctional footrest includes a first cushion block, a second cushion block, a third cushion block, a fourth cushion block, a fifth cushion block, a sixth cushion block, and a seventh cushion block;

The first cushion block, the second cushion block, the third cushion block and the fourth cushion block are connected side by side in sequence, and the four cushion blocks are of equal height;

and the side walls facing the first pad and the second pad are slidably connected to the first bump through the first T-shaped chute;

The side wall facing the third spacer block and the second spacer block is slidably connected to the second bump through the second T-shaped chute;

The fourth spacer is U-shaped; the inner walls of the two opposite side plates of the fourth spacer are provided with third bumps;

The second cushion block is divided into left and right cushion blocks, the front and rear outer walls of the left and right cushion blocks are provided with a first T-shaped chute and a second T-shaped chute, and the first T-shaped chute and the chute track of the second T-shaped chute is parallel to the horizontal plane; the bordering surface of the left pad and the right pad is equally divided along the length of the groove;

A third T-shaped chute is provided on the left and right outer walls of the third cushion block, and the third protrusions on the fourth cushion block are respectively sleeved in the third T-shaped chute to pull the fourth cushion The block realizes that the fourth block moves away from or close to the third block along the horizontal line;

the first cushion block, the second cushion block, the third cushion block and the fourth cushion block form an upper cushion block;

A groove is set on the upper end surface of the upper layer cushion block, and the groove track of the groove passes through the first cushion block, the second cushion block, the third cushion block and the fourth cushion block respectively;

There is also a cross telescopic mechanism under the grooves opened by the first, third and fourth spacers, and the push-pull cross telescopic mechanism can realize the expansion and contraction of the first block and the third block along the cross telescopic mechanism. The direction is elongated or shortened, and the size of the groove opening can be stretched or shortened;

The fifth, sixth, and seventh spacers are all U-shaped; two opposite side plates of the fifth, sixth, and seventh spacers are vertically and equally spaced. several spiral holes; and the two side plates of the fifth, sixth and seventh pads are all of the same height; the bottom plates of the fifth, sixth and seventh pads are all provided with crosses. The telescopic mechanism, the push-pull cross telescopic mechanism can realize the extension or shortening of the fifth block, the sixth block and the seventh block along the telescopic direction of the cross telescopic mechanism;

A plurality of second grooves are vertically and equally spaced on the outer walls of the two opposite sides of the first cushion block and the second cushion block away from the cross telescopic mechanism, and the inner walls of the second grooves are provided with internal threads;

A plurality of second grooves are vertically and equally spaced on the outer walls of the two opposite side plates of the fourth cushion block, and the inner walls of the second grooves are provided with internal threads;

The seventh pad, the sixth pad and the fifth pad are respectively sleeved with the first pad, the second pad and the fourth pad; the seventh pad, the sixth pad and the fifth pad The threaded holes opened on the first spacer block, the second spacer block, and the grooves opened on the fourth spacer block can be respectively matched on the same vertical line; A groove on the spacer makes the seventh spacer and the first spacer threadedly connected; bolts pass through the threaded hole on the sixth spacer and the groove on the second spacer to make the sixth spacer and the second spacer The spacer block is threadedly fixedly connected; the fifth spacer block and the fourth spacer block are threadedly connected by bolts passing through the threaded hole on the fifth spacer block and the groove on the fourth spacer block.

Further description, the two side walls of the second spacer are respectively provided with a first T-shaped chute and a second T-shaped chute;

The chute tracks of the first T-shaped chute and the second T-shaped chute are parallel to the telescopic track direction of the cross telescopic mechanism;

There are two first bumps and are arranged side by side on the first pad, and the two first bumps are both arranged away from the cross telescopic mechanism;

There are two second bumps and are arranged side by side on the third pad, and the two second bumps are both arranged away from the cross telescopic mechanism.

To further illustrate, the third bump is provided with two pieces, which are respectively located on the inner walls of the two opposite side plates of the fourth spacer block and are far away from the bottom plate of the fourth spacer block.

Further description, the cross telescopic mechanism includes a first rotating rod, a second rotating rod, a third rotating rod, a fourth rotating rod, a first fixed rod, a second fixed rod and a third fixed rod, the first rotating rod The front end of the middle part of the rod and the rear end of the middle part of the second rotating rod are fixed and installed by locking bolts, and the front end of the middle part of the third rotating rod and the rear end of the middle part of the fourth rotating rod are also fixed and installed by locking bolts. Both the bottom end of the rotating rod and the top end of the fourth rotating rod are provided with fixed first bolts, and the first rotating rod is threadedly connected with the end face of the third fixed rod near its side through the fixed first bolts. The fourth rotating rod is threadedly connected with the end face of the first fixing rod close to its side by fixing the first bolt. The second rotating rod and the third rotating rod are all connected with a sliding block by fixing the second bolt, and the end faces of the third fixing rod, the second fixing rod and the first fixing rod near the other side are all provided with A chute, the outer wall of the slider is slidably connected with the inner wall of the chute, the top end of the second rotating rod is provided with a third fixing bolt, the third fixing bolt passes through the top end of the third rotating rod and is connected with the first rotating rod. The end faces of the two fixing rods close to one side are threadedly connected, the bottom end of the fourth rotating rod is provided with a fourth fixing bolt, and the fourth fixing bolt passes through the top end of the first rotating rod and is connected with the end surface of the slider. Threaded connection; the first fixing rod and one side wall of the third fixing rod are respectively connected to the first cushion block, the second cushion block, the third cushion block, the fourth cushion block, the fifth cushion block and the sixth cushion block , on the seventh pad.

Further description, the upper end surfaces of the groove tracks of the grooves on the first spacer block, the second spacer block and the fourth spacer block are also padded with a layer of soft pads.

Further description, a door frame type support frame is respectively set on the upper end surface of the first cushion block and the fourth cushion block, and the bottom ends of the two vertical brackets of the door frame type support frame are respectively installed on the first cushion block and the fourth cushion block. On the upper end surface of the cushion block; the beam bars of the door frame type support frame are all the same length as the long sides of the first cushion block and the fourth cushion block.

To further illustrate, the beam bars of the door frame type support frame are all parallel to the upper end surfaces of the first cushion block and the fourth cushion block.

Further description, the beam rod is a telescopic rod.

It is further explained that the first pad is also provided with a sole pad, the sole pad is U-shaped, the open end of the U-shaped is connected to the rear side of the first pad, and the closed end is far away from the first pad. A spacer set.

To further illustrate, the depth of the groove is 2-4 cm.

Owing to adopting the above-mentioned technical scheme, the present invention has the following beneficial effects:

The multifunctional footrest of the present invention can adjust the size of the suitable groove according to the size of the legs of different patients, and can also adjust the height of the footrest and/or the length of the groove according to the needs. The support frame also prevents the quilt from being pressed against the flaps in cold weather. It will affect the recovery of the patient and the growth of the patient's new skin. The structure of the invention is convenient to operate, and has good popularization and applicability.

Description of drawings

FIG. 1 is an exploded view of seven spacers according to one of the preferred embodiments of the present invention.

FIG. 2 is a schematic structural diagram of one of the preferred embodiments of the present invention.

FIG. 3 is a schematic structural diagram of another preferred embodiment of the present invention.

FIG. 4 is a schematic structural diagram of another preferred embodiment of the present invention.

FIG. 5 is a state diagram of the cross telescopic mechanism of the present invention being stretched out.

FIG. 6 is a drawing and shrinking state diagram of the cross telescopic mechanism of the present invention.

In the drawings, the first spacer block 1, the second spacer block 2, the third spacer block 3, the fourth spacer block 4, the fifth spacer block 5, the sixth spacer block 6, the seventh spacer block 7, the second concave block Slot 8, threaded hole 9, bolt 10, cross telescopic mechanism 11, first bump 12, first T-shaped slot 13, second T-shaped slot 14, second bump 15, third T-shaped slot 16 , the third bump 17, the support frame 18, the beam rod 181, the cushion 19, the groove 20, the first fixed rod 110, the first rotating rod 111, the second rotating rod 112, the third rotating rod 113, the fourth rotating rod Rod 114 , locking bolt 115 , first bolt 116 , second bolt 117 , slider 118 , chute 119 , third bolt 120 , second fixing rod 122 , third fixing rod 123 , foot pad 21 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a co-existence of an intervening component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a co-existing centered component. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1:

Please refer to Figure 1-6, the multifunctional footrest includes a first pad 1, a second pad 2, a third pad 3, a fourth pad 4, a fifth pad 5, and a sixth pad 6. The seventh pad 7;

Since the skin flap operation is divided into left and right legs, but the structure is symmetrical when the legs are supported, and the structure and function are the same, which will be explained in detail.

The first spacer block 1, the second spacer block 2, the third spacer block 3, and the fourth spacer block 4 are connected side by side in sequence, and the four spacer blocks are of equal height, preferably equal length, and the second spacer block 2 is the first spacer in width. A spacer block 1 and a third spacer block 3 are 2-4 times larger; and the opposite side walls of the first spacer block 1 and the second spacer block 2 are slidably connected to the first bump 12 through the first T-shaped chute 13 ; The side walls of the third spacer block 3 and the second spacer block 2 are slidably connected with the second bump 15 through the second T-shaped chute 14;

The fourth spacer 4 is U-shaped; the inner walls of the two opposite side plates of the fourth spacer 4 are provided with third bumps 17;

The second cushion block 2 is divided into left and right cushion blocks, preferably the left and right cushion blocks are equally divided, the groove 20 is partially divided into half, and the front and rear outer walls of the left cushion block and the right cushion block are provided with a first T-shaped The chute 13 and the second T-shaped chute 14, and the chute sliding tracks of the first T-shaped chute 13 and the second T-shaped chute 14 are parallel to the horizontal plane, and the first T-shaped chute 13 and the second T-shaped chute 14 The chute 14 is on the same horizontal line; the bordering surface of the left pad and the right pad is equally divided along the length direction of the groove 20;

A third T-shaped chute 16 is opened on the left and right outer walls of the third spacer 3 , and the third protrusions 17 on the fourth spacer 4 are respectively sleeved in the third T-shaped chute 16 , pull the fourth pad 4 to move the fourth pad 4 away from or close to the third pad 3 along the horizontal plane;

The first spacer block 1, the second spacer block 2, the third spacer block 3 and the fourth spacer block 4 constitute an upper layer spacer block; a groove 20 (preferably a groove 20) is provided on the upper end surface of the upper layer spacer block. The maximum depth is 2-4 cm), the track in the groove length direction of the groove 20 passes through the first spacer block 1, the second spacer block 2, the third spacer block 3 and the fourth spacer block 4 respectively, preferably the groove 20 is opened at the middle position (equally divided position) of the upper end face; under the groove 20 opened by the first cushion block 1, the third cushion block 3 and the fourth cushion block 4, there is also a cross telescopic mechanism 11 (that is, the first cushion block 11). A spacer block 1, a third spacer block 3 and a fourth spacer block 4 are all divided into left and right plates from the bottom of the groove 20 along the bisector line, and the left and right plates are connected by a cross telescopic mechanism 11), and the push-pull cross telescopic mechanism 11 can realize The first spacer 1 and the third spacer 3 are extended or shortened along the telescopic direction of the cross telescopic mechanism 11, and can stretch or shorten the size of the opening of the groove 20; the second spacer 2 is along the groove 20 The length direction is equally divided into left pads and right pads side by side; the fifth pad 5, the sixth pad 6, and the seventh pad 7 are all U-shaped; the fifth pad 5, the sixth pad The two opposite side plates of the cushion block 6 and the seventh cushion block 7 are provided with a number of spiral holes vertically and equally spaced; and the two side plates of the fifth cushion block 5, the sixth cushion block 6 and the seventh cushion block 7 are equal High; the bottom plates of the fifth cushion block 5, the sixth cushion block 6 and the seventh cushion block 7 are all provided with a cross telescopic mechanism 11 (that is, the fifth cushion block 5, the sixth cushion block 6, the seventh cushion block 7 are equally divided into left and right plates from the bottom of the groove 20 along the center line, and the left and right plates are connected by a cross telescopic mechanism 11). The block 7 is extended or shortened along the telescopic direction of the cross telescopic mechanism 11; the outer walls of the two opposite sides of the first block 1 and the second block 2 away from the cross telescopic mechanism 11 are vertically equidistantly provided with several The second groove 8, the inner wall of the second groove 8 is provided with internal threads;

Several second grooves 8 are vertically and equally spaced on the outer walls of the two opposite side plates of the fourth cushion block 4, and the inner walls of the second grooves 8 are provided with internal threads;

The seventh pad 7 , the sixth pad 6 and the fifth pad 5 are respectively sleeved with the first pad 1 , the second pad 2 and the fourth pad 4 ; the seventh pad 7 , the sixth pad The threaded holes 9 opened on the cushion block 6 and the fifth cushion block 5 can be respectively matched with the grooves 20 opened on the first cushion block 1, the second cushion block 2 and the fourth cushion block 4 on the same vertical line; The threaded hole 9 on the seventh pad 7 and the groove 20 on the first pad 1 are penetrated by the bolt 10, so that the seventh pad 7 and the first pad 1 are threadedly connected; the sixth pad is threaded through the bolt 10 The threaded hole 9 on the block 6 and the groove 20 on the second spacer block 2 make the sixth spacer block 6 and the second spacer block 2 threadedly connected; The groove 20 on the fourth spacer block 4 enables the fifth spacer block 5 and the fourth spacer block 4 to be threadedly connected.

Different patients have different body shapes and different thickness of the legs. For thicker legs, the height of the leg rest needs to be increased. According to the needs, adjust the seventh pad 7, the sixth pad 6, and the fifth pad 5. The threaded holes 9 on the top can be adjusted respectively corresponding to the positions of the second grooves 8 corresponding to the first cushion block 1, the second cushion block 2 and the fourth cushion block 4, so that the height of the entire leg rest can be adjusted.

In addition, by adjusting the heights of the seventh spacer 7 and the first spacer 1, the sixth spacer 6 and the second spacer 2, and the fifth spacer 5 and the fourth spacer 4, the heights can be unified on the same parallel plane. It can also be adjusted to an ascending trapezoid or a descending trapezoid according to the needs of the patient.

The two opposite side walls (front and rear side walls) of the second spacer block 2 are respectively provided with a first T-shaped chute 13 and a second T-shaped chute 14; The chute track and the telescopic track of the cross telescopic mechanism 11 are in the same direction; there are two first bumps 12 and are arranged on the first pad 1 side by side, and the two first bumps 15 are far away from the first pad 1 The cross telescopic mechanism 11 on the third block 3 is provided; the second bumps 15 are arranged side by side on the third cushion block 3 , and the two second bumps 15 are both disposed away from the cross telescopic mechanism 11 on the third cushion block 3 . There are two third bumps 17 , which are respectively located on the inner walls of the two opposite side plates of the fourth pad 4 and away from the bottom plate of the fourth pad 4 .

5 and 6 , the cross telescopic mechanism includes a first rotating rod 111 , a second rotating rod 112 , a third rotating rod 113 , a fourth rotating rod 114 , a first fixing rod 110 , a second fixing rod 122 and a third rotating rod 114 . The fixing rod 123, the front end of the middle part of the first rotating rod and the rear end of the middle part of the second rotating rod 112 are fixed and installed by the locking bolt 115, the front end of the middle part of the third rotating rod 113 and the rear part of the middle part of the fourth rotating rod 114 The bottom end of the first rotating rod 111 and the top end of the fourth rotating rod 114 are equipped with fixed first bolts 116, and the first rotating rod 111 is fixed by the first rotating rod 111. The bolt 116 is threadedly connected to the end face of the third fixing rod 110 close to the side thereof, the fourth rotating rod 114 is threadedly connected to the end face of the first fixing rod 123 close to the side thereof by fixing the first bolt 116, and the first rod 114 is threaded. The bottom ends of the second rotating rods 112 and the bottom ends of the third rotating rods 113 are provided with second fixing bolts 117 . Block 118, the end faces of the third fixing rod 123, the second fixing rod 122 and the first fixing rod 110 on the other side are all provided with a chute 119, the outer wall of the slider 118 and the inner wall of the chute 119 Sliding connection, the top end of the second rotating rod 112 is provided with a third fixing bolt 120, the third fixing bolt 120 passes through the top end of the third rotating rod 113 and is connected to the second fixing rod 122 on the side close to it. The end face is threaded, the bottom end of the fourth rotating rod 114 is provided with a fourth fixing bolt 121, and the fourth fixing bolt 121 passes through the top end of the first rotating rod 111 and is threadedly connected with the end face of the slider; the One side wall of the first fixing rod 110 and the third fixing rod 123 are respectively connected to the first cushion block 1 , the second cushion block 2 , the third cushion block 3 , the fourth cushion block 4 , the fifth cushion block 5 , and the sixth cushion block 5 . On the pad 6 and the seventh pad 7.

Please refer to FIG. 3 , a foot pad 21 is further provided on the first cushion block 1 , the sole foot pad 21 is U-shaped, and the open end of the U-shaped is connected to the rear side of the first cushion block 1 On the other hand, the closed end is far away from the first cushion block 1, and the upper end surface of the foot pad 21 is lower than the bottom horizontal surface of the groove 20, and the foot pad 21 and the groove 20 are in the same vertical direction. Support the patient's legs and feet on the same level. The sole pad 21 is connected to the rear side of the first pad 1, and the connection can be a fixed connection (such as welding, riveting, etc.), or a detachable connection (such as a mechanical structure). Common mechanical connection methods such as snap connection).

Please refer to FIG. 2 , the upper end surface of the groove track of the groove 20 on the first cushion block 1, the second cushion block 2 and the fourth cushion block 4 is also padded with a layer of soft pad 19, and the soft pad 19 is made of breathable material. The soft pad 19 is made of existing materials, such as the patent product CN201320619752.7, a warp-knitted spacer fabric breathable soft pad 19 and other existing materials.

Please refer to FIG. 4 , a door frame type support frame 18 is respectively provided on the upper end surfaces of the first cushion block 1 and the fourth cushion block 4 , and the bottom ends of the two vertical brackets of the door frame type support frame 18 are respectively installed on the first cushion block Block 1 and the upper end surface of the fourth spacer block 4 ; the beam bars 181 of the door frame type support frame 18 are all the same length as the long sides of the first spacer block 1 and the fourth spacer block 4 . The beam bars 181 of the door frame type support frame 18 are all parallel to the upper end surfaces of the first block 1 and the fourth block 4 . The beam rod 181 is a telescopic rod. The telescopic rod includes several sliver rods and mother rods, and the length can be adjusted. Preferably, the bottom ends of the two vertical brackets are detachably linked with the first cushion block 1 or the fourth cushion block 4, and the linking methods include snap connection, lock connection, plug connection, and the like. The connection between the bottom ends of the two vertical supports and the first pad 1 or the fourth pad 4 may also be a fixed connection commonly used in machinery, such as welding, riveting and the like.

The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. The number of side-by-side increases; the size of each component; the material of each component, etc., all equivalent changes or modifications completed under the technical spirit suggested by the present invention shall belong to the scope of the patent covered by the present invention.

Claims (10)

1. Multi-functional foot rest, its characterized in that: the first cushion block, the second cushion block, the third cushion block, the fourth cushion block, the fifth cushion block, the sixth cushion block and the seventh cushion block are included; the first cushion block, the second cushion block, the third cushion block and the fourth cushion block are connected in parallel in sequence, and the four cushion blocks are equal in height; the side wall of the first cushion block, which is opposite to the side wall of the second cushion block, is connected with the first bump in a sliding mode through a first T-shaped sliding groove; the side wall of the third cushion block, which is opposite to the second cushion block, is in sliding connection with the second bump through a second T-shaped sliding groove; the fourth cushion block is U-shaped; the inner walls of two opposite side plates of the fourth cushion block are provided with third convex blocks; the second cushion block is divided into a left cushion block and a right cushion block, a first T-shaped sliding groove and a second T-shaped sliding groove are formed in the front outer wall and the rear outer wall of the left cushion block and the rear outer wall of the right cushion block respectively, and sliding groove tracks of the first T-shaped sliding groove and the second T-shaped sliding groove are parallel to the horizontal plane; third T-shaped sliding grooves are formed in the outer walls of the left side and the right side of the third cushion block, third convex blocks on the fourth cushion block are respectively sleeved in the third T-shaped sliding grooves, and the fourth cushion block is pulled to move away from or close to the third cushion block along the horizontal line; the first cushion block, the second cushion block, the third cushion block and the fourth cushion block form an upper cushion block; a groove is formed in the upper end face of the upper cushion block, and a groove track of the groove penetrates through the first cushion block, the second cushion block, the third cushion block and the fourth cushion block respectively; a cross telescopic mechanism is further arranged below the grooves formed in the first cushion block, the third cushion block and the fourth cushion block, and the cross telescopic mechanism can be pushed and pulled to realize the extension or the shortening of the first cushion block and the third cushion block along the telescopic direction of the cross telescopic mechanism and can realize the stretching or the shortening of the opening of the groove; the fifth cushion block, the sixth cushion block and the seventh cushion block are all U-shaped; a plurality of spiral holes are vertically and equidistantly formed in two opposite side plates of the fifth cushion block, the sixth cushion block and the seventh cushion block; the two side plates of the fifth cushion block, the sixth cushion block and the seventh cushion block are equal in height; the bottom plates of the fifth cushion block, the sixth cushion block and the seventh cushion block are all provided with a cross telescopic mechanism, and the fifth cushion block, the sixth cushion block and the seventh cushion block can be stretched or shortened along the telescopic direction of the cross telescopic mechanism by pushing and pulling the cross telescopic mechanism; a plurality of second grooves are vertically and equidistantly formed in the outer walls of two opposite sides of the first cushion block and the second cushion block, which are far away from the cross telescopic mechanism, and internal threads are formed in the inner walls of the second grooves; a plurality of second grooves are vertically and equidistantly formed in the outer walls of two opposite side plates of the fourth cushion block, and internal threads are formed in the inner walls of the second grooves; the seventh cushion block, the sixth cushion block and the fifth cushion block are respectively sleeved with the first cushion block, the second cushion block and the fourth cushion block; the threaded holes formed in the seventh cushion block, the sixth cushion block and the fifth cushion block can be correspondingly matched with the grooves formed in the first cushion block, the second cushion block and the fourth cushion block on the same vertical line; the seventh cushion block is fixedly connected with the first cushion block through threads by a bolt penetrating through a threaded hole in the seventh cushion block and a groove in the first cushion block; the sixth cushion block is fixedly connected with the second cushion block through threads by a bolt penetrating through a threaded hole in the sixth cushion block and a groove in the second cushion block; and the bolt penetrates through a threaded hole in the fifth cushion block and a groove in the fourth cushion block to enable the fifth cushion block and the fourth cushion block to be in threaded fixed connection.

2. The multifunctional foot rest according to claim 1, characterized in that: a first T-shaped sliding groove and a second T-shaped sliding groove are formed in two side walls of the second cushion block respectively; the chute tracks of the first T-shaped chute and the second T-shaped chute are parallel to the telescopic track direction of the cross telescopic mechanism; two first lugs are arranged on the first cushion block in parallel, and the two first lugs are far away from the cross telescopic mechanism; the second lugs are arranged on the third cushion block in parallel, and the two second lugs are far away from the crossed telescopic mechanism.

3. The multifunctional foot rest according to claim 1, characterized in that: and the two third lugs are respectively positioned on the inner walls of the two opposite side plates of the fourth cushion block and are far away from the bottom plate of the fourth cushion block.

4. The multifunctional foot rest according to claim 1, characterized in that: the cross telescopic mechanisms respectively comprise a first rotating rod, a second rotating rod, a third rotating rod, a fourth rotating rod, a first fixing rod, a second fixing rod and a third fixing rod, the front end of the middle part of the first rotating rod and the rear end of the middle part of the second rotating rod are fixedly installed through a locking bolt, the front end of the middle part of the third rotating rod and the rear end of the middle part of the fourth rotating rod are also fixedly installed through a locking bolt, fixed first bolts are respectively penetrated through the bottom end of the first rotating rod and the top end of the fourth rotating rod, the first rotating rod is in threaded connection with the end surface of the third fixing rod close to one side of the first rotating rod through the fixed first bolts, the fourth rotating rod is in threaded connection with the end surface of the first fixing rod close to one side of the first rotating rod through the fixed first bolts, fixed second bolts are respectively penetrated through the bottom end of the second rotating rod and the bottom end of the third rotating rod, the second rotating rod and the third rotating rod are both connected with a sliding block through the fixed second bolts, the third fixing rod, the second fixing rod and the end face of the first fixing rod, which is close to the other side of the first fixing rod, are provided with sliding grooves, the outer wall of the sliding block is connected with the inner wall of the sliding groove in a sliding manner, a fixed third bolt penetrates through the top end of the third rotating rod and is in threaded connection with the end face of the second fixing rod, which is close to one side of the second fixing rod, a fixed fourth bolt penetrates through the bottom end of the fourth rotating rod, and the fixed fourth bolt penetrates through the top end of the first rotating rod and is in threaded connection with the end face of the sliding block; and one side walls of the first fixing rod and the third fixing rod are respectively connected with the first cushion block, the second cushion block, the third cushion block, the fourth cushion block, the fifth cushion block, the sixth cushion block and the seventh cushion block.

5. The multifunctional foot rest according to claim 1, characterized in that: and a layer of soft cushion is also cushioned on the upper end surfaces of the groove tracks of the grooves on the first cushion block, the second cushion block and the fourth cushion block.

6. The multifunctional foot rest according to claim 1, characterized in that: the bottom ends of two vertical supports of the door frame type supporting frame are respectively arranged on the upper end surfaces of the first cushion block and the fourth cushion block; and the beam rods of the doorframe-type support frame are equal to the long edges of the first cushion block and the fourth cushion block in length.

7. The multifunctional foot rest according to claim 6, characterized in that: and the beam rods of the doorframe-type support frame are parallel to the upper end surfaces of the first cushion block and the fourth cushion block.

8. The multifunctional foot rest according to claim 6, characterized in that: the beam rod is a telescopic rod.

9. The multifunctional foot rest according to claim 1, characterized in that: still be provided with sole callus on the sole on first cushion, sole callus on the sole is the U type, the open end of U type is connected on the trailing flank of first cushion, and first cushion setting is kept away from to the blind end.

10. The multifunctional foot rest according to claim 1, characterized in that: the depth of the groove is 2-4 cm.

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