CN214073997U - Adjustable lifting pad for relieving edema of lower limbs - Google Patents

Abstract

An adjustable lifting pad for relieving lower limb edema comprises a base and a lower limb placing structure with adjustable distance from the base; it is characterized in that short side plates are arranged at two sides of the base; a stepping motor which is transversely arranged along the base is fixedly arranged on the side plate, the stepping motor extends out of a threaded rotating rod which rotates along with the stepping motor, a moving block which is provided with threads and sleeved on the threaded rotating rod and horizontally moves along with the rotation of a rotating shaft is arranged on the threaded rotating rod, and a connecting rod which is connected with a lower limb placing structure is arranged on the moving block; the connecting rod is rotationally connected with the moving block and the lower limb placing structure; the horizontal position of the lower limb placing structure is not changed relative to the base, and the connecting position of the connecting rod and the lower limb placing structure is not changed relatively; the length of the connecting rod is not changed; the connecting position of the moving block and the connecting rod is changed along with the movement of the moving block, and the angles between the connecting rod and the moving block and between the connecting rod and the lower limb placing structure are changed while the positions are changed; and the vertical distance between the base and the lower limb placing structure is also changed.

Description

Adjustable lifting pad for relieving edema of lower limbs

Technical Field

The utility model belongs to the technical field of supplementary medical instrument with, especially, relate to alleviate the apparatus of edema, concretely relates to is an adjustable alleviates raising of lower limb edema and fills up.

Background

In clinic, a plurality of patients have the condition that the patients are inconvenient to move for a long time or a long time and need to lie in bed, in particular to lying-in women, especially lying-in women in caesarean section; the physical weakness and inconvenient movement of the parturient, especially the incapability of moving the parturient's limbs due to the anesthetic action of the parturient in caesarean section, often cause the patient to suffer from edema of the lower limbs due to long-term lying in bed.

At present, the problem of edema of lower limbs of a patient is clinically required to be relieved by a family member of the patient to assist the patient to lift the legs or knead the legs, but the method is labor-consuming and time-consuming, and the nursing of a newborn usually does not have enough experience to take care of a lying-in woman, so that the problem of long recovery time of the lying-in woman is caused.

Although some instruments capable of effectively lifting the height of the lower limbs of the patient to relieve the edema problem exist in the prior art, most of the instruments cannot be adjusted and cannot realize periodic movement, and the situation can be relieved only to a certain extent, and the use effect of the lifting instruments in the prior art is not ideal due to the fact that the legs of the patient cannot be moved and the height of the patient cannot be well adjusted.

The utility model discloses raise the apparatus to the lower limb edema among the prior art and can not adjust, and the problem of regular motion regulation provides an adjustable alleviates raising of lower limb edema and fills up.

SUMMERY OF THE UTILITY MODEL

An adjustable lifting pad for relieving lower limb edema comprises a base and a lower limb placing structure with adjustable distance from the base; it is characterized in that short side plates are arranged at two sides of the base; a stepping motor which is transversely arranged along the base is fixedly arranged on the side plate, the stepping motor extends out of a threaded rotating rod which rotates along with the stepping motor, a moving block which is provided with threads and sleeved on the threaded rotating rod and horizontally moves along with the rotation of a rotating shaft is arranged on the threaded rotating rod, and a connecting rod which is connected with a lower limb placing structure is arranged on the moving block; the connecting rod, the moving block and the lower limb placing structure are in a rotating connection mode; the horizontal position of the lower limb placing structure is not changed relative to the base, and the connecting position of the connecting rod and the lower limb placing structure is not changed relatively; the length of the connecting rod is not changed; the connecting position of the moving block and the connecting rod is changed along with the movement of the moving block, and the angles between the connecting rod and the moving block and between the connecting rod and the lower limb placing structure are changed while the positions are changed; meanwhile, the vertical distance between the base and the lower limb placing structure is changed, and a lifting switch and a lowering switch which control the forward rotation and the reverse rotation of the stepping motor to achieve the lifting effect are additionally arranged; and a power supply structure for supplying energy to the stepping motor is also arranged. During the use, rotate through opening step motor and drive the rotation of screw thread rotary rod, the position that drives the movable block changes, reaches and changes connecting rod and movable block hookup location, changes the effect of angle and distance between lower limbs placement structure and base between connecting rod and movable block and lower limbs placement structure simultaneously, stops to move step motor when reaching the height that needs.

Furthermore, a stepping motor is arranged in the longitudinal middle of the base, and height adjustment is achieved through the motor.

Or, a stepping motor, a corresponding threaded rotating rod, a corresponding moving block and a corresponding connecting rod are respectively arranged on the two sides of the base along the longitudinal direction of the base; the two stepping motors are respectively provided with a rising switch and a falling switch; or the two stepping motors realize the lifting effect at the same time, and the two stepping motors use a lifting switch and a lowering switch.

Furthermore, the control structure for controlling all the lifting switches and the lowering switches is arranged, and the control structure controls the periodic lifting and lowering of the two stepping motors, so that the regular lifting and lowering movement of the lower limbs is driven, the blood circulation of the lower limbs is promoted, and the problem of lower limb edema is improved to the maximum extent.

Furthermore, the moving block is a moving block with a threaded hole, the combination of the moving block and the threaded rotating rod is realized in a threaded connection mode, and anti-rotation structures which ensure that the moving block does not rotate along with the threaded rotating rod are arranged on two sides of the moving block. Through setting up anti-rotation structure can effectively guarantee that the movable block realizes that horizontal displacement does not take place to rotate along with the rotation of screw thread rotary rod.

Furthermore, the anti-rotation structure comprises a limiting plate which extends out of the base and is arranged along the transverse direction of the base and is arranged on one side of the moving block; the distance between the two limiting plates is equal to the width of the moving block, and the moving block is arranged between the two limiting plates; the position of the moving block is locked by the two limiting plates to prevent the moving block from rotating; or the anti-rotation device also comprises an anti-rotation protrusion extending from the moving block and a longitudinal track which is arranged on the limiting plate and is used for the anti-rotation protrusion to extend into and is arranged along the longitudinal direction of the limiting plate; the anti-rotation function can be realized as well.

Furthermore, two moving blocks are arranged in the transverse direction of the base and correspond to the connecting rods with the same number; the threaded rotating rod extends to the short side plate on the other side of the base, and a first supporting hole for supporting the threaded rotating rod to rotate is formed in the short side plate on the other side; a supporting block extends out of the base at the middle position of the threaded rotating rod, a second supporting hole for the threaded rotating rod to extend into is formed in the supporting block, and the two moving blocks are arranged on two sides of the supporting block; the two moving blocks move in opposite directions to change the angles of the two connecting rods, so that the height is adjusted.

Further, the two moving blocks move reversely in opposite directions, the initial positions of the two moving blocks are both arranged at positions close to the stepping motor or both arranged at positions close to the supporting block, and the thread directions of the thread rotating rods at the two sides of the supporting block are opposite, so that the thread rotating rods rotate in the same direction but the moving directions of the moving blocks are opposite; the two connecting rods are kept symmetrical by taking the vertical line of the supporting block as a symmetry axis in the whole movement process. The initial positions of the two moving blocks are the positions of the lowest points of the lower limb placing structures.

Further, when the two moving blocks move reversely and oppositely, the two moving blocks are close to the supporting block at the initial position, and the connecting position of the connecting rod and the lower limb setting structure is arranged at the position corresponding to the position of the short side plate.

Furthermore, the thread rotating rod sections arranged in the first support hole and the second support hole are not provided with threads, and the arrangement can effectively reduce the resistance of the support rotation.

Furthermore, bearing structures are arranged at the first support hole and the second support hole, so that the rotation friction at the contact position is reduced to the maximum extent, and smooth operation is guaranteed.

Further, the connecting rod all includes two and stretches out the board with the hookup location that moving block and low limbs placed the structure, and the connecting rod is established and is stretching out the inter-plate, sets up the pivot hole on stretching out board and the connecting rod, sets up the connecting shaft pole in the pivot hole, realizes rotating the realization of connecting through this kind of structure.

Further, the lower limb sets up the structure and includes that the lower part contacts with the lower limb hard board and upper portion that the connecting plate is connected and accords with the soft supporting pad of shank physiology radian, and soft supporting pad bottom surface and hard board etc. are big, guarantee that hard board is to the effective support of shank.

Furthermore, the rigid plate is a narrow rigid plate capable of accommodating one leg or a wide rigid plate capable of accommodating two lower limbs, and the symmetry plane of the rigid plate is consistent with that of the base. The arrangement of the rigid plates with different widths can be selected to be narrow or wide according to the requirements of patients.

Furthermore, the base and the lower limb placing structure are made of metal materials or plastic materials with strength, so that the stability of the whole structure is ensured.

Compare with prior art's instrument that prevents lower limbs edema, the utility model discloses a lower limbs are raised to adjustable that technical scheme can be fine, still can improve low limbs blood circulation through regular motion, make the effect show more, soft supporting pad one in addition can guarantee to the at utmost with the setting of soft supporting pad two to raise the comfort level of in-process patient's shank.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of the anti-rotation structure with longitudinal rails of the present invention;

FIG. 2 is a schematic view of the overall structure of the anti-rotation structure of the present invention, which is an embodiment of two limiting plates;

FIG. 3 is a schematic view of the lower limb placing structure and the stepping motor connected thereto;

FIG. 4 is a schematic structural view of the base portion and the stepping motor connected thereto according to the present invention;

FIG. 5 is a partial enlarged structural view of a single stepping motor with a longitudinal rail of the anti-rotation structure of the present invention;

fig. 6 is a schematic longitudinal sectional structural view of a single stepping motor according to the present invention;

FIG. 7 is a schematic diagram of the structure of the connection plate of the present invention;

fig. 8 is a schematic diagram of the structure of the moving block of the present invention;

in the figure, 1, a base; 11. a short side plate; 111. a first support hole; 12. a limiting plate; 13. a rotation prevention rod; 14. a longitudinal rail; 2. a lower limb placement structure; 21. cardboard; 22. a soft support pad; 3. a stepping motor; 31. a threaded rotating rod; 32. a moving block; 321. a threaded hole; 4. a connecting rod; 41. extending the plate; 42. a rotating shaft hole; 43. a shaft lever; 5. a control structure; 61. a support block; 611. and a second support hole.

Detailed Description

Example 1 an adjustable elevated pad for reducing edema in the lower extremities

An adjustable lifting pad for relieving lower limb edema comprises a base 1 and a lower limb placing structure 2 with adjustable distance from the base 1; it is characterized in that short side plates 11 are arranged at two sides of the base 1; the side plates are fixedly provided with a stepping motor 3 which is transversely arranged along the base 1, the stepping motor 3 extends out of a threaded rotating rod 31 which rotates along with the stepping motor 3, the threaded rotating rod 31 is provided with a moving block 32 which is sleeved on the threaded rotating rod 31 in a threaded manner and horizontally moves along with the rotation of a rotating shaft, and the moving block 32 is provided with a connecting rod 4 which is connected with the lower limb placing structure 2; the connecting rod 4, the moving block 32 and the lower limb placing structure 2 are in a rotating connection mode; the horizontal position of the lower limb placing structure 2 is not changed relative to the base 1, and the connecting position of the connecting rod 4 and the lower limb placing structure 2 is not changed relative to each other; the length of the connecting rod 4 is not changed; the connecting position of the moving block 32 and the connecting rod 4 is changed along with the movement of the moving block 32, and the angles between the connecting rod 4 and the moving block 32 and between the connecting rod 4 and the lower limb placing structure 2 are changed while the positions are changed; the vertical distance between the base 1 and the lower limb placing structure 2 is changed at the same time, and a lifting switch and a lowering switch which control the forward rotation and the reverse rotation of the stepping motor 3 to achieve the lifting effect are additionally arranged; a power supply structure for supplying power to the stepping motor 3 is also provided. During the use, rotate through opening step motor 3 and drive screw thread rotary rod 31 and rotate, drive the position of movable block 32 and change, reach and change connecting rod 4 and movable block 32 hookup location, change the effect that connecting rod 4 and movable block 32 and lower limbs placed structure 2 within a definite time angle and lower limbs placed structure 2 and base 1 within a definite time distance simultaneously, stop running step motor 3 when reaching the height that needs. A stepping motor 3 is arranged at the longitudinal middle position of the base 1, and height adjustment is realized through one motor. The base 1 and the lower limb placing structure 2 are made of metal materials or plastic materials with strength, so that the stability of the whole structure is ensured.

The moving block 32 is a moving block 32 with a threaded hole 321, the combination of the moving block 32 and the threaded rotating rod 31 is realized in a threaded connection mode, and anti-rotation structures which ensure that the moving block 32 does not rotate along with the threaded rotating rod 31 are arranged on two sides of the moving block 32. The anti-rotation structure can effectively ensure that the moving block 32 does not rotate along with the rotation of the threaded rotating rod 31 when the horizontal displacement is realized. The anti-rotation structure comprises a limiting plate 12 which extends out of the base 1 and is arranged along the transverse direction of the base 1 and is arranged on one side of the moving block 32; the device further comprises another limiting plate 12 arranged on the other side of the moving block 32, the distance between the two limiting plates 12 is equal to the width of the moving block 32, and the moving block 32 is arranged between the two limiting plates 12; the position of the moving block 32 is locked by the two limiting plates 12, so that the rotation is prevented;

the connecting position of the connecting rod 4, the moving block 32 and the lower limb placing structure 2 comprises two extending plates 41, the connecting rod 4 is arranged between the extending plates 41, a rotating shaft hole 42 is formed in each of the extending plates 41 and the connecting rod 4, a connecting shaft rod 43 is arranged in each rotating shaft hole 42, and the rotating connection is realized through the structure.

The lower limb setting structure comprises a hard plate connected with the connecting plate at the lower part, and a soft supporting pad 22 which is contacted with the lower limb at the upper part and accords with the physiological radian of the legs, wherein the bottom surface of the soft supporting pad 22 is large as the hard plate, and the hard plate is guaranteed to effectively support the legs. The rigid plate is a rigid plate which can accommodate one narrow leg or a wide rigid plate which can accommodate two lower limbs, and the symmetrical plane of the rigid plate is consistent with that of the base 1. The arrangement of the rigid plates with different widths can be selected to be narrow or wide according to the requirements of patients.

Example 2 an adjustable elevated pad for reducing edema in the lower extremities

An adjustable lifting pad for relieving lower limb edema comprises a base 1 and a lower limb placing structure 2 with adjustable distance from the base 1; it is characterized in that short side plates 11 are arranged at two sides of the base 1; the side plates are fixedly provided with a stepping motor 3 which is transversely arranged along the base 1, the stepping motor 3 extends out of a threaded rotating rod 31 which rotates along with the stepping motor 3, the threaded rotating rod 31 is provided with a moving block 32 which is sleeved on the threaded rotating rod 31 in a threaded manner and horizontally moves along with the rotation of a rotating shaft, and the moving block 32 is provided with a connecting rod 4 which is connected with the lower limb placing structure 2; the connecting rod 4, the moving block 32 and the lower limb placing structure 2 are in a rotating connection mode; the horizontal position of the lower limb placing structure 2 is not changed relative to the base 1, and the connecting position of the connecting rod 4 and the lower limb placing structure 2 is not changed relative to each other; the length of the connecting rod 4 is not changed; the connecting position of the moving block 32 and the connecting rod 4 is changed along with the movement of the moving block 32, and the angles between the connecting rod 4 and the moving block 32 and between the connecting rod 4 and the lower limb placing structure 2 are changed while the positions are changed; the vertical distance between the base 1 and the lower limb placing structure 2 is changed at the same time, and a lifting switch and a lowering switch which control the forward rotation and the reverse rotation of the stepping motor 3 to achieve the lifting effect are additionally arranged; a power supply structure for supplying power to the stepping motor 3 is also provided. During the use, rotate through opening step motor 3 and drive screw thread rotary rod 31 and rotate, drive the position of movable block 32 and change, reach and change connecting rod 4 and movable block 32 hookup location, change the effect that connecting rod 4 and movable block 32 and lower limbs placed structure 2 within a definite time angle and lower limbs placed structure 2 and base 1 within a definite time distance simultaneously, stop running step motor 3 when reaching the height that needs. The base 1 and the lower limb placing structure 2 are made of metal materials or plastic materials with strength, so that the stability of the whole structure is ensured.

A stepping motor 3 is arranged at the longitudinal middle position of the base 1, and height adjustment is realized through one motor. The control structure 5 for controlling all the lifting switches and the lowering switches is arranged, the control structure 5 controls the periodic lifting and lowering of the two stepping motors 3, the regular lifting and lowering movement of the lower limbs is driven, the blood circulation of the lower limbs is promoted, and the problem of lower limb edema is improved to the maximum extent. The moving block 32 is a moving block 32 with a threaded hole 321, the combination of the moving block 32 and the threaded rotating rod 31 is realized in a threaded connection mode, and anti-rotation structures which ensure that the moving block 32 does not rotate along with the threaded rotating rod 31 are arranged on two sides of the moving block 32. The anti-rotation structure can effectively ensure that the moving block 32 does not rotate along with the rotation of the threaded rotating rod 31 when the horizontal displacement is realized. The anti-rotation structure comprises a limiting plate 12 which extends out of the base 1 and is arranged along the transverse direction of the base 1 and is arranged on one side of the moving block 32; the device further comprises another limiting plate 12 arranged on the other side of the moving block 32, the distance between the two limiting plates 12 is equal to the width of the moving block 32, and the moving block 32 is arranged between the two limiting plates 12; the two limit plates 12 lock the position of the moving block 32 to prevent rotation.

The connecting position of the connecting rod 4, the moving block 32 and the lower limb placing structure 2 comprises two extending plates 41, the connecting rod 4 is arranged between the extending plates 41, a rotating shaft hole 42 is formed in each of the extending plates 41 and the connecting rod 4, a connecting shaft rod 43 is arranged in each rotating shaft hole 42, and the rotating connection is realized through the structure.

The lower limb setting structure comprises a hard plate connected with the connecting plate at the lower part, and a soft supporting pad 22 which is contacted with the lower limb at the upper part and accords with the physiological radian of the legs, wherein the bottom surface of the soft supporting pad 22 is large as the hard plate, and the hard plate is guaranteed to effectively support the legs. The rigid plate is a rigid plate which can accommodate one narrow leg or a wide rigid plate which can accommodate two lower limbs, and the symmetrical plane of the rigid plate is consistent with that of the base 1. The arrangement of the rigid plates with different widths can be selected to be narrow or wide according to the requirements of patients.

EXAMPLE 3 an Adjustable lifting pad for the reduction of edema in the lower extremities

An adjustable lifting pad for relieving lower limb edema comprises a base 1 and a lower limb placing structure 2 with adjustable distance from the base 1; it is characterized in that short side plates 11 are arranged at two sides of the base 1; the side plates are fixedly provided with a stepping motor 3 which is transversely arranged along the base 1, the stepping motor 3 extends out of a threaded rotating rod 31 which rotates along with the stepping motor 3, the threaded rotating rod 31 is provided with a moving block 32 which is sleeved on the threaded rotating rod 31 in a threaded manner and horizontally moves along with the rotation of a rotating shaft, and the moving block 32 is provided with a connecting rod 4 which is connected with the lower limb placing structure 2; the connecting rod 4, the moving block 32 and the lower limb placing structure 2 are in a rotating connection mode; the horizontal position of the lower limb placing structure 2 is not changed relative to the base 1, and the connecting position of the connecting rod 4 and the lower limb placing structure 2 is not changed relative to each other; the length of the connecting rod 4 is not changed; the connecting position of the moving block 32 and the connecting rod 4 is changed along with the movement of the moving block 32, and the angles between the connecting rod 4 and the moving block 32 and between the connecting rod 4 and the lower limb placing structure 2 are changed while the positions are changed; the vertical distance between the base 1 and the lower limb placing structure 2 is changed at the same time, and a lifting switch and a lowering switch which control the forward rotation and the reverse rotation of the stepping motor 3 to achieve the lifting effect are additionally arranged; a power supply structure for supplying power to the stepping motor 3 is also provided. During the use, rotate through opening step motor 3 and drive screw thread rotary rod 31 and rotate, drive the position of movable block 32 and change, reach and change connecting rod 4 and movable block 32 hookup location, change the effect that connecting rod 4 and movable block 32 and lower limbs placed structure 2 within a definite time angle and lower limbs placed structure 2 and base 1 within a definite time distance simultaneously, stop running step motor 3 when reaching the height that needs. The base 1 and the lower limb placing structure 2 are made of metal materials or plastic materials with strength, so that the stability of the whole structure is ensured.

The two sides of the base 1 along the longitudinal direction of the base 1 are respectively provided with a stepping motor 3, a corresponding threaded rotating rod 31, a corresponding moving block 32 and a corresponding connecting rod 4; the two stepping motors 3 are respectively provided with a rising switch and a falling switch; or the two stepping motors 3 realize the lifting effect at the same time, and the two stepping motors 3 use a lifting switch and a lowering switch at the same time. The control structure 5 for controlling all the lifting switches and the lowering switches is arranged, the control structure 5 controls the periodic lifting and lowering of the two stepping motors 3, the regular lifting and lowering movement of the lower limbs is driven, the blood circulation of the lower limbs is promoted, and the problem of lower limb edema is improved to the maximum extent.

The moving block 32 is a moving block 32 with a threaded hole 321, the combination of the moving block 32 and the threaded rotating rod 31 is realized in a threaded connection mode, and anti-rotation structures which ensure that the moving block 32 does not rotate along with the threaded rotating rod 31 are arranged on two sides of the moving block 32. The anti-rotation structure can effectively ensure that the moving block 32 does not rotate along with the rotation of the threaded rotating rod 31 when the horizontal displacement is realized. The anti-rotation structure comprises a limiting plate 12 which extends out of the base 1 and is arranged along the transverse direction of the base 1 and is arranged on one side of the moving block 32; the anti-rotation device also comprises an anti-rotation protrusion extending from the moving block 32 and a longitudinal track 14 which is arranged on the limiting plate 12 and is used for the anti-rotation protrusion to extend into and is arranged along the longitudinal direction of the limiting plate 12; the anti-rotation function can be realized as well.

The connecting position of the connecting rod 4, the moving block 32 and the lower limb placing structure 2 comprises two extending plates 41, the connecting rod 4 is arranged between the extending plates 41, a rotating shaft hole 42 is formed in each of the extending plates 41 and the connecting rod 4, a connecting shaft rod 43 is arranged in each rotating shaft hole 42, and the rotating connection is realized through the structure.

The lower limb setting structure comprises a hard plate connected with the connecting plate at the lower part, and a soft supporting pad 22 which is contacted with the lower limb at the upper part and accords with the physiological radian of the legs, wherein the bottom surface of the soft supporting pad 22 is large as the hard plate, and the hard plate is guaranteed to effectively support the legs. The rigid plate is a rigid plate which can accommodate one narrow leg or a wide rigid plate which can accommodate two lower limbs, and the symmetrical plane of the rigid plate is consistent with that of the base 1. The arrangement of the rigid plates with different widths can be selected to be narrow or wide according to the requirements of patients.

EXAMPLE 4 an Adjustable lifting pad for the reduction of edema in the lower extremities

An adjustable lifting pad for relieving lower limb edema comprises a base 1 and a lower limb placing structure 2 with adjustable distance from the base 1; it is characterized in that short side plates 11 are arranged at two sides of the base 1; the side plates are fixedly provided with a stepping motor 3 which is transversely arranged along the base 1, the stepping motor 3 extends out of a threaded rotating rod 31 which rotates along with the stepping motor 3, the threaded rotating rod 31 is provided with a moving block 32 which is sleeved on the threaded rotating rod 31 in a threaded manner and horizontally moves along with the rotation of a rotating shaft, and the moving block 32 is provided with a connecting rod 4 which is connected with the lower limb placing structure 2; the connecting rod 4, the moving block 32 and the lower limb placing structure 2 are in a rotating connection mode; the horizontal position of the lower limb placing structure 2 is not changed relative to the base 1, and the connecting position of the connecting rod 4 and the lower limb placing structure 2 is not changed relative to each other; the length of the connecting rod 4 is not changed; the connecting position of the moving block 32 and the connecting rod 4 is changed along with the movement of the moving block 32, and the angles between the connecting rod 4 and the moving block 32 and between the connecting rod 4 and the lower limb placing structure 2 are changed while the positions are changed; the vertical distance between the base 1 and the lower limb placing structure 2 is changed at the same time, and a lifting switch and a lowering switch which control the forward rotation and the reverse rotation of the stepping motor 3 to achieve the lifting effect are additionally arranged; a power supply structure for supplying power to the stepping motor 3 is also provided. During the use, rotate through opening step motor 3 and drive screw thread rotary rod 31 and rotate, drive the position of movable block 32 and change, reach and change connecting rod 4 and movable block 32 hookup location, change the effect that connecting rod 4 and movable block 32 and lower limbs placed structure 2 within a definite time angle and lower limbs placed structure 2 and base 1 within a definite time distance simultaneously, stop running step motor 3 when reaching the height that needs. The base 1 and the lower limb placing structure 2 are made of metal materials or plastic materials with strength, so that the stability of the whole structure is ensured.

The two sides of the base 1 along the longitudinal direction of the base 1 are respectively provided with a stepping motor 3, a corresponding threaded rotating rod 31, a corresponding moving block 32 and a corresponding connecting rod 4; the two stepping motors 3 are respectively provided with a rising switch and a falling switch; or the two stepping motors 3 realize the lifting effect at the same time, and the two stepping motors 3 use a lifting switch and a lowering switch at the same time. The control structure 5 for controlling all the lifting switches and the lowering switches is arranged, the control structure 5 controls the periodic lifting and lowering of the two stepping motors 3, the regular lifting and lowering movement of the lower limbs is driven, the blood circulation of the lower limbs is promoted, and the problem of lower limb edema is improved to the maximum extent.

The moving block 32 is a moving block 32 with a threaded hole 321, the combination of the moving block 32 and the threaded rotating rod 31 is realized in a threaded connection mode, and anti-rotation structures which ensure that the moving block 32 does not rotate along with the threaded rotating rod 31 are arranged on two sides of the moving block 32. The anti-rotation structure can effectively ensure that the moving block 32 does not rotate along with the rotation of the threaded rotating rod 31 when the horizontal displacement is realized. The anti-rotation structure comprises a limiting plate 12 which extends out of the base 1 and is arranged along the transverse direction of the base 1 and is arranged on one side of the moving block 32; the device further comprises another limiting plate 12 arranged on the other side of the moving block 32, the distance between the two limiting plates 12 is equal to the width of the moving block 32, and the moving block 32 is arranged between the two limiting plates 12; the position of the moving block 32 is locked by the two limiting plates 12, so that the rotation is prevented; in another embodiment, the device further comprises an anti-rotation protrusion extending from the moving block 32 and a longitudinal rail 14 which is arranged on the limiting plate 12 and is used for the anti-rotation protrusion to extend into and is arranged along the longitudinal direction of the limiting plate 12; the anti-rotation function can be realized as well.

Two moving blocks 32 are arranged in the transverse direction of the base 1 and correspond to the connecting rods 4 with the same number; the threaded rotating rod 31 extends to the short side plate 11 on the other side of the base 1, and a first supporting hole 111 for supporting the threaded rotating rod 31 to rotate is formed in the short side plate 11 on the other side; a supporting block 61 extends out of the base 1 at the middle position of the threaded rotating rod 31, a second supporting hole 611 for the threaded rotating rod 31 to extend into is formed in the supporting block 61, and the two moving blocks 32 are arranged on two sides of the supporting block 61; the two moving blocks 32 move in opposite directions to change the angles of the two connecting rods 4, thereby realizing the height adjustment. The two moving blocks 32 move reversely in opposite directions, the initial positions of the two moving blocks 32 are both arranged at positions close to the stepping motor 3 or both arranged at positions close to the supporting block 61, the thread directions of the thread rotating rods 31 at the two sides of the supporting block 61 are opposite, so that the thread rotating rods 31 rotate in the same direction but the moving directions of the moving blocks 32 are opposite; the two connecting rods 4 are kept symmetrical by taking the vertical line of the supporting block 61 as the symmetry axis in the whole movement process. The initial position of the two moving blocks 32 is the position of the lowest point of the lower limb resting structure 2. When the two moving blocks 32 move in opposite directions, in the initial position, the two moving blocks 32 are both close to the positions of the supporting blocks 61, and the connecting position of the connecting rod 4 and the lower limb setting structure is set at the position corresponding to the position of the short side plate 11. The section of the threaded rotating rod 31 arranged in the first support hole 111 and the second support hole 611 is not provided with threads, and the arrangement can effectively reduce the resistance of the support rotation. And bearing structures are arranged at the first support hole 111 and the second support hole 611, so that the rotation friction at the contact position is reduced to the greatest extent, and the smooth operation is ensured.

The connecting position of the connecting rod 4, the moving block 32 and the lower limb placing structure 2 comprises two extending plates 41, the connecting rod 4 is arranged between the extending plates 41, a rotating shaft hole 42 is formed in each of the extending plates 41 and the connecting rod 4, a connecting shaft rod 43 is arranged in each rotating shaft hole 42, and the rotating connection is realized through the structure.

The lower limb setting structure comprises a hard plate connected with the connecting plate at the lower part, and a soft supporting pad 22 which is contacted with the lower limb at the upper part and accords with the physiological radian of the legs, wherein the bottom surface of the soft supporting pad 22 is large as the hard plate, and the hard plate is guaranteed to effectively support the legs. The rigid plate is a rigid plate which can accommodate one narrow leg or a wide rigid plate which can accommodate two lower limbs, and the symmetrical plane of the rigid plate is consistent with that of the base 1. The arrangement of the rigid plates with different widths can be selected to be narrow or wide according to the requirements of patients.

The above description of the embodiments is only intended to illustrate the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications will fall within the protection scope of the claims of the present invention.

Claims (10)

1. An adjustable lifting pad for relieving lower limb edema comprises a base and a lower limb placing structure with adjustable distance from the base; it is characterized in that short side plates are arranged at two sides of the base; a stepping motor which is transversely arranged along the base is fixedly arranged on the side plate, the stepping motor extends out of a threaded rotating rod which rotates along with the stepping motor, a moving block which is provided with threads and sleeved on the threaded rotating rod and horizontally moves along with the rotation of a rotating shaft is arranged on the threaded rotating rod, and a connecting rod which is connected with a lower limb placing structure is arranged on the moving block; the connecting rod, the moving block and the lower limb placing structure are in a rotating connection mode; the horizontal position of the lower limb placing structure is not changed relative to the base, and the connecting position of the connecting rod and the lower limb placing structure is not changed relatively; the length of the connecting rod is not changed; the connecting position of the moving block and the connecting rod is changed along with the movement of the moving block, and the angles between the connecting rod and the moving block and between the connecting rod and the lower limb placing structure are changed while the positions are changed; meanwhile, the vertical distance between the base and the lower limb placing structure is changed, and a lifting switch and a lowering switch which control the forward rotation and the reverse rotation of the stepping motor to achieve the lifting effect are additionally arranged; and a power supply structure for supplying energy to the stepping motor is also arranged.

2. The adjustable edema reduction elevation pad of claim 1, wherein a stepper motor is provided at a longitudinally intermediate position of the base for height adjustment by a motor.

3. The adjustable lifting pad for alleviating edema of lower limbs as claimed in claim 1, wherein a stepping motor, a threaded rotating rod, a moving block and a connecting rod are respectively disposed on the base at both sides of the base in the longitudinal direction of the base; the two stepping motors are respectively provided with a rising switch and a falling switch; or the two stepping motors realize the lifting effect at the same time, and the two stepping motors use a lifting switch and a lowering switch.

4. The adjustable lifting pad for alleviating edema of lower limbs as claimed in claim 1, wherein the moving block is a moving block with a threaded hole, the combination of the moving block and the threaded rotating rod is realized by means of threaded connection, and anti-rotation structures are provided on both sides of the moving block to ensure that the moving block does not rotate along with the threaded rotating rod.

5. The adjustable lower limb edema reduction elevation pad of claim 4, wherein the anti-rotation structure comprises a stop plate extending from the base and disposed laterally along the base and disposed to one side of the moving mass; the distance between the two limiting plates is equal to the width of the moving block, and the moving block is arranged between the two limiting plates; or the anti-rotation device also comprises an anti-rotation protrusion extending from the moving block and a longitudinal track which is arranged on the limiting plate and is used for the anti-rotation protrusion to extend into and is arranged along the longitudinal direction of the limiting plate.

6. The adjustable edema reduction pad of any one of claims 1 to 5, wherein two moving blocks are provided in the transverse direction of the base, corresponding to the same number of connecting rods; the threaded rotating rod extends to the short side plate on the other side of the base, and a first supporting hole for supporting the threaded rotating rod to rotate is formed in the short side plate on the other side; a supporting block extends out of the base at the middle position of the threaded rotating rod, a second supporting hole for the threaded rotating rod to extend into is formed in the supporting block, and the two moving blocks are arranged on two sides of the supporting block; the two moving blocks move towards opposite directions to change the angles of the two connecting rods.

7. The adjustable edema reduction elevation pad of claim 6, wherein the two moving blocks move in opposite directions, the initial positions of the two moving blocks are both located near the stepper motor or both located near the support block, the threaded rotation bars have opposite thread directions on both sides of the support block, such that the threaded rotation bars rotate in the same direction but the moving blocks move in opposite directions; the two connecting rods are kept symmetrical by taking the vertical line of the supporting block as a symmetry axis in the whole movement process.

8. The adjustable edema reduction elevation pad of claim 6 wherein the threaded rotation rod segments disposed in the first support hole and the second support hole are unthreaded.

9. The adjustable lifting pad for alleviating edema of lower limbs as claimed in any one of claims 1 to 5, wherein the connecting positions of the connecting rod, the moving block and the lower limb placing structure each comprise two extension plates, the connecting rod is disposed between the extension plates, the extension plates and the connecting rod are provided with rotation shaft holes, and the connecting shaft rod is disposed in the rotation shaft hole.

10. The adjustable edema reduction pad of any one of claims 1-5 or 7-8, wherein the lower limb support structure comprises a rigid plate connected to the connecting plate at the lower portion and a flexible support pad adapted to conform to the physiological curvature of the leg and contacting the lower limb at the upper portion, wherein the bottom surface of the flexible support pad is as large as the rigid plate.

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