A non-powered waist assist device adapted to human body movements

Abstract

A non-powered waist booster device that fits human body movement includes a chest plate and a mounting column, a back plate and an arc-shaped waist guard plate are provided on the front side of the mounting column, a first energy storage elastomer and a second energy storage elastomer are provided on the side of the mounting column, a hip joint guard plate is rotatably connected to the lower part of the arc-shaped waist guard plate, the hip joint guard plate is connected to a leg swing bar assembly through the mounting plate, the first energy storage elastomer is connected to the leg swing bar assemblies on both sides through a first pull line and a second pull line respectively, the second energy storage elastomer is connected to the leg swing bar assemblies on both sides through a third pull line and a fourth pull line respectively, and the first pull line, the second pull line, the third pull line and the fourth pull line are connected end to end to form a closed-circuit booster ring. The present invention has a reasonable design, a compact structure, and is easy to wear. It provides a non-powered waist booster device for bending over to carry heavy objects, reduces the force on the waist, and there is basically no additional resistance interference during walking, which is more comfortable to wear.

Description

Technical Field

[0001] The present invention belongs to the technical field of unpowered exoskeletons, and in particular relates to an unpowered waist assisting device adapted to human body movements. Background Art

[0002] When people bend over to carry heavy objects, the waist is subjected to greater force, which can cause lumbar muscle strain over time. In severe cases, the spine may be deformed, making it difficult to walk upright. There are also waist assist mechanisms on the market, but they usually have additional power to assist, and cannot fit the alternation of the human legs when walking. The legs have greater interference and even greater resistance, and the weight is heavy, and the straps are not set reasonably, resulting in poor physical comfort when wearing and using. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a non-powered waist assist device that is basically interference-free when walking, has a compact structure, and is more comfortable to wear and use to fit human body movements.

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: a non-powered waist assist device that fits human body movement, including a chest plate and a mounting column vertically arranged at the rear side of the chest plate, a back plate and an arc-shaped waist guard plate are fixedly arranged at intervals from top to bottom on the front side of the mounting column, a first energy storage elastomer and a second energy storage elastomer are respectively arranged on the left and right sides of the mounting column, the left and right sides of the lower part of the arc-shaped waist guard plate are rotatably connected to the hip joint guard plate through a horizontal pin shaft arranged along the front and rear directions, the outer side of the hip joint guard plate is rotatably connected to the mounting plate through a horizontal rotating component, and the outer side of the mounting plate is rotatably connected to the leg swing rod assembly Parts, the first energy storage elastic body and the second energy storage elastic body both have two power ends in opposite directions, one power end of the first energy storage elastic body is connected to the leg swing rod assembly on the left side through the first cable, the other power end of the first energy storage elastic body is connected to the leg swing rod assembly on the right side through the second cable, one power end of the second energy storage elastic body is connected to the leg swing rod assembly on the left side through the third cable, the other power end of the second energy storage elastic body is connected to the leg swing rod assembly on the right side through the fourth cable, the first cable, the second cable, the third cable and the fourth cable are connected end to end to form a closed-circuit power-assisting ring;

[0005] A shoulder strap is provided between the upper part of the back plate and the upper part of the chest plate, an upper pull strap is provided between the outer part of the chest plate and the lower part of the back plate, a lower pull strap is provided between the outer part of the chest plate and the upper part of the curved lumbar guard, a waist belt is provided between the left and right sides of the curved lumbar guard, and thigh binding assemblies are provided at the lower parts of the two leg swing arm assemblies.

[0006] The horizontal rotation assembly includes a positioning sleeve, a rotating seat and a rotating shaft. The positioning sleeve is fixedly connected to the outside of the hip joint guard. The rotating shaft is vertically connected to the positioning sleeve. The rotating seat is arranged below the positioning sleeve. The lower end of the rotating shaft is fixedly connected to the rotating seat. The inner side of the rotating seat is fixedly connected to the outer side of the upper part of the mounting plate.

[0007] The leg swing arm assembly includes a thigh swing arm, a guide wheel disc, a clutch disc and a clutch block. A swing disc is integrally provided at the upper end of the thigh swing arm. The swing disc, the clutch disc and the guide wheel disc are sequentially arranged from the inside to the outside. The centers of the swing disc, the clutch disc and the guide wheel disc are rotatably connected to the mounting plate through a swing shaft. The inner side surface of the swing disc contacts the outer side surface of the mounting plate. The guide wheel disc and the clutch disc are fixedly connected. An annular wire groove is provided between the outer circle of the guide wheel disc and the disc surface of the clutch disc. An arc-shaped slot hole with the swing shaft as the center line is opened on the swing disc. A mounting groove is provided in the radial direction of the clutch plate, a wire fastening bolt is provided at the lower part of the clutch plate, the head of the wire fastening bolt is located in the mounting groove, a fastening nut located in the arc-shaped slot hole is bolted to the wire fastening bolt, clutch slot holes are correspondingly provided at the lower part of the clutch plate and the swing plate, the clutch slot hole on the swing plate extends downward to the thigh swing rod, a clutch block is provided in the clutch slot hole, a handle protrusion is provided on the outer side of the clutch block, a limit plate with a width greater than the clutch slot hole is provided on the inner side of the clutch block, and the limit plate is connected to the clutch block by a screw;

[0008] The first pull wire passes around the lower rear part of the annular wire groove of the guide wheel disk of the left leg swing arm assembly and is connected to the pull wire fastening bolt, the second pull wire passes around the lower rear part of the annular wire groove of the guide wheel disk of the right leg swing arm assembly and is connected to the pull wire fastening bolt; the third pull wire passes around the upper front part of the annular wire groove of the guide wheel disk of the left leg swing arm assembly and is connected to the pull wire fastening bolt, the fourth pull wire passes around the upper front part of the annular wire groove of the guide wheel disk of the right leg swing arm assembly and is connected to the pull wire fastening bolt.

[0009] The thigh binding assembly includes an arc-shaped connecting plate, a front thigh guard plate, a rear thigh guard plate and a thigh strap. A plurality of connecting holes are evenly arranged on the thigh swing rod in the height direction. The arc-shaped connecting plate is connected to the thigh swing rod by at least two adjusting bolts passing through the connecting holes respectively. The front thigh guard plate is connected to the front side of the arc-shaped connecting plate, and the rear thigh guard plate is connected to the rear side of the arc-shaped connecting plate. The front and rear ends of the thigh strap are respectively connected to the front thigh guard plate and the rear thigh guard plate.

[0010] A wire guide seat is fixedly provided on the mounting plate above the rear of the swing plate. The wire guide seat has two through holes for passing the wire. A wire tube is provided on the outer sleeve of the wire between the wire guide seat and the energy storage elastic body.

[0011] The first energy storage elastic body is a high-pressure gas pressure rod, and the second energy storage elastic body is a low-pressure gas pressure rod.

[0012] The chest plate includes a left chest plate and a right chest plate. The right end of the left chest plate is integrally provided with a left plug-in strip and a left plug-in long hole, and the left end of the right chest plate is integrally provided with a right plug-in strip and a right plug-in long hole. The left plug-in strip, the left plug-in long hole, the right plug-in strip and the right plug-in long hole are located at the same height. The left plug-in strip and the right plug-in strip are overlapped front to back. The left plug-in strip passes through the right plug-in long hole, and the right plug-in strip passes through the left plug-in long hole. The front sides of the left chest plate and the right chest plate are connected by a transverse strap.

[0013] A hip limiting belt is arranged between the upper rear side of the left thigh swing bar and the upper rear side of the right thigh swing bar.

[0014] By adopting the above technical scheme, when the present invention is used, the present invention is first put on the body, and the shoulder straps, upper pull belt, lower pull belt, waist belt, transverse straps and hip limit belts are all connected and fixed in place. First, move the clutch blocks on the left and right sides upward along the clutch slot holes to combine the clutch plate and the swing plate into one. When bending over to lift heavy objects, the mounting column, back plate, arc-shaped waist guard plate, hip joint guard plate, horizontal rotation assembly, and mounting plate rotate forward and downward with the swing axis as the center line. At this time, it is equivalent to the thigh swing arm, swing plate, guide wheel plate, and clutch plate rotating forward and upward with the swing axis as the center line when not bending over. The position of the cable fastening bolt also rotates forward and upward. The first cable and the third cable are stretched by the cable fastening bolt. The high-pressure pneumatic rod stores energy after being pulled by the first and third cables. The high-pressure pneumatic rod assists the bending action. The second and fourth cables are in a tensioned state under the pull of the low-pressure pneumatic rod. When the heavy object is lifted upward, the energy stored in the high-pressure pneumatic rod is released. With the assistance of the high-pressure pneumatic rod, the force on the waist is reduced.

[0015] When the legs are crossed and moving forward, for example, the left leg steps forward and the body moves forward, at this time the right leg is equivalent to moving backward, and the left leg drives the left thigh swing arm to rotate forward and upward, and the position of the left pull wire fastening bolt also rotates forward and upward, the first pull wire is stretched by the pull wire fastening bolt, and the other end of the first pull wire pulls the high-pressure pneumatic rod, and the right leg drives the right thigh swing arm to rotate backward and upward, and the third pull wire is relaxed, which just offsets the pulling of the first pull wire. In this way, when the legs are crossed and walking, the first and second pull wires will not produce a large pulling force on the legs. Similarly, when the right leg steps forward and the body moves forward, at this time the left leg is equivalent to moving backward, and the third pull wire pulls the high-pressure pneumatic rod, and the first pull wire is relaxed. The length of the relaxation of the first pull wire is exactly the same as the pulling length of the first pull wire. In this way, the high-pressure pneumatic rod is not pulled to store energy when the legs are walking, and the legs are basically not hindered by the pull wires, making walking more comfortable.

[0016] The center lines of the horizontal pin, the rotation axis and the swing axis are three axes of a three-dimensional coordinate system that are perpendicular to each other. This structure simulates the structure of the hip joint and allows the legs to rotate and move in any direction.

[0017] When bending over and walking, the clutch block moves upward to the uppermost end of the clutch slot, and is used to connect the swing plate and the clutch plate, so that the thigh swing arm, the swing plate, the clutch plate and the guide wheel plate are connected as a whole; when squatting or sitting down to rest, the clutch block can be moved downward to the lowermost end of the clutch slot, the thigh swing arm rotates, and the fastening nut of the pull wire fastening bolt rotates in the arc slot, which can avoid the first pull wire and the third pull wire from generating tension at the same time and affecting the comfort of the human body.

[0018] The friction force of the clutch block moving up and down is adjusted by adjusting the screw to adjust the degree of compression between the limit plate and the inner side of the swing plate.

[0019] The wire guide seat serves to connect the wire tube and also serves as a guide for the wire.

[0020] The front ends of the two shoulder straps are respectively connected to the upper parts of the left chest plate and the right chest plate. The left chest plate and the right chest plate are connected by the left plug-in strip and the right plug-in strip to play a positioning role of not being misaligned up and down. The left chest plate and the right chest plate are connected by a transverse strap so that the left chest plate and the right chest plate are connected as a whole, and the pulling force of the shoulder straps, the upper pull strap and the lower pull strap is endured, so as to ensure the stability of the present invention when worn on the body.

[0021] The lower end of the thigh swing rod will be connected to the human thigh through the thigh binding assembly. The points of force for bending assistance are located at the front of the two thighs, the buttocks, and the front of the chest (if there is an arm strap accessory, this part of the force will be shared).

[0022] The hip limiter is located at the junction of the thigh and the hip, and serves to prevent the hip and the device from being misaligned when bending over.

[0023] The arc-shaped connecting plate of the thigh lashing assembly can move up and down on the thigh swing rod. By moving the connecting hole on the thigh swing rod corresponding to the adjusting bolt, the height of the thigh lashing assembly can be adjusted to suit the lashing of different people. The front thigh guard plate and the rear thigh guard plate are connected to the arc-shaped connecting plate through pins, so that the angle can be adjusted to fully fit the thigh surface.

[0024] To sum up, the present invention has a reasonable design, compact structure, and is easy to wear. It provides a non-powered waist assist device for bending over to carry heavy objects, which reduces the force on the waist. There is basically no additional resistance interference during walking, and it is more comfortable to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a side view of the present invention;

[0027] Figure 3 is a side view of the present invention after removing each strap;

[0028] Figure 4 yes Figure 3 Left view of

[0029] Figure 5 is a vertical cross-sectional view of the leg swing arm assembly;

[0030] Figure 6 This is a schematic diagram of the split left chest plate and the right chest plate;

[0031] Figure 7 1. It is a schematic diagram of the structure of the left chest plate and the right chest plate being inserted into each other;

[0032] Figure 8 is a schematic diagram of a viewing angle of the present invention worn on a human body;

[0033] Fig. 9 It is a schematic diagram of another viewing angle of the present invention worn on a human body. DETAILED DESCRIPTION

[0034] like Figure 1-Figure 9 As shown, a non-powered waist assist device that fits human body movement of the present invention comprises a chest plate 1 and a mounting column 2 vertically arranged at the rear side of the chest plate 1, a back plate 3 and an arc-shaped waist guard plate 4 are fixedly arranged at intervals from top to bottom on the front side of the mounting column 2, a first energy storage elastomer 5 and a second energy storage elastomer 6 are respectively arranged on the left and right sides of the mounting column 2, the left and right sides of the lower part of the arc-shaped waist guard plate 4 are rotatably connected to a hip joint guard plate 8 through a horizontal pin shaft 7 arranged along the front-to-back direction, the outer side of the hip joint guard plate 8 is rotatably connected to a mounting plate 9 through a horizontal rotating component 48, the outer side of the mounting plate 9 is rotatably connected to a leg swing rod component 49, the first energy storage elastomer 5 and the second The energy storage elastic body 6 has two power ends in opposite directions, one power end of the first energy storage elastic body 5 is connected to the leg swing rod assembly 49 on the left side through the first cable 10, the other power end of the first energy storage elastic body 5 is connected to the leg swing rod assembly 49 on the right side through the second cable 11, one power end of the second energy storage elastic body 6 is connected to the leg swing rod assembly 49 on the left side through the third cable 12, the other power end of the second energy storage elastic body 6 is connected to the leg swing rod assembly 49 on the right side through the fourth cable 13, and the first cable 10, the second cable 11, the third cable 12 and the fourth cable 13 are connected end to end to form a closed-circuit power-assisting ring;

[0035] A shoulder strap 14 is provided between the upper part of the back plate 3 and the upper part of the chest plate 1, an upper pull strap 15 is provided between the outer part of the chest plate 1 and the lower part of the back plate 3, a lower pull strap 16 is provided between the outer part of the chest plate 1 and the upper part of the curved waist guard plate 4, a waist belt 17 is provided between the left and right sides of the curved waist guard plate 4, and thigh binding assemblies 50 are provided at the lower parts of the two leg swing arm assemblies 49.

[0036] The horizontal rotation assembly 48 includes a positioning sleeve 18, a rotating seat 19 and a rotating shaft 20. The positioning sleeve 18 is fixedly connected to the outer side of the hip joint guard 8. The rotating shaft 20 is vertically rotatably connected to the positioning sleeve 18. The rotating seat 19 is arranged below the positioning sleeve 18. The lower end of the rotating shaft 20 is fixedly connected to the rotating seat 19. The inner side of the rotating seat 19 is fixedly connected to the outer side of the upper part of the mounting plate 9.

[0037] The leg swing rod assembly 49 includes a thigh swing rod 21, a guide wheel disc 22, a clutch disc 23 and a clutch block 24. A swing disc 25 is integrally provided at the upper end of the thigh swing rod 21. The swing disc 25, the clutch disc 23 and the guide wheel disc 22 are sequentially arranged from the inside to the outside. The centers of the swing disc 25, the clutch disc 23 and the guide wheel disc 22 are rotatably connected to the mounting plate 9 through a swing shaft 26. The inner side surface of the swing disc 25 contacts the outer side surface of the mounting plate 9. The guide wheel disc 22 and the clutch disc 23 are fixedly connected. An annular wire groove 27 is provided between the outer circle of the guide wheel disc 22 and the disc surface of the clutch disc 23. An arc-shaped slot 28 with the swing shaft 26 as the center line is opened on the swing disc 25. A mounting groove is provided at the lower part of the clutch plate 22 in the radial direction, a wire fastening bolt 29 is provided at the lower part of the clutch plate 23, the head of the wire fastening bolt 29 is located in the mounting groove, and a fastening nut 30 located in the arc-shaped slot 28 is bolted to the wire fastening bolt 29, and a clutch slot 31 is provided at the lower part of the clutch plate 23 and the swing plate 25, and the clutch slot 31 on the swing plate 25 extends downward to the thigh swing rod 21, and a clutch block 24 is provided in the clutch slot 31, and a handle protrusion 32 is provided on the outer side of the clutch block 24, and a limit plate 33 with a width greater than the clutch slot 31 is provided on the inner side of the clutch block 24, and the limit plate 33 is connected to the clutch block 24 through a screw 34;

[0038] The first pull wire 10 bypasses the lower rear portion of the annular wire groove 27 of the guide wheel disc 22 of the left leg swing arm assembly 49 and is connected to the pull wire fastening bolt 29, the second pull wire 11 bypasses the lower rear portion of the annular wire groove 27 of the guide wheel disc 22 of the right leg swing arm assembly 49 and is connected to the pull wire fastening bolt 29; the third pull wire 12 bypasses the upper front portion of the annular wire groove 27 of the guide wheel disc 22 of the left leg swing arm assembly 49 and is connected to the pull wire fastening bolt 29, the fourth pull wire 13 bypasses the upper front portion of the annular wire groove 27 of the guide wheel disc 22 of the right leg swing arm assembly 49 and is connected to the pull wire fastening bolt 29.

[0039] The thigh binding assembly 50 includes an arc-shaped connecting plate 35, a front thigh guard plate 36, a rear thigh guard plate 37 and a thigh strap 38. A plurality of connecting holes 39 are evenly arranged on the thigh swing rod 21 along the height direction. The arc-shaped connecting plate 35 is connected to the thigh swing rod 21 by at least two adjusting bolts correspondingly passing through the connecting holes 39. The front thigh guard plate 36 is connected to the front side of the arc-shaped connecting plate 35, and the rear thigh guard plate 37 is connected to the rear side of the arc-shaped connecting plate 35. The front and rear ends of the thigh strap 38 are respectively connected to the front thigh guard plate 36 and the rear thigh guard plate 37.

[0040] A wire guide seat 40 is fixedly provided on the mounting plate 9 above and behind the swing plate 25. The wire guide seat 40 has two through holes for passing the wire. A wire tube is provided outside the wire between the wire guide seat 40 and the energy storage elastic body.

[0041] The first energy storage elastic body 5 is a high-pressure gas pressure rod, and the second energy storage elastic body 6 is a low-pressure gas pressure rod.

[0042] The chest plate 1 includes a left chest plate 41 and a right chest plate 42. The left chest plate 41 is integrally provided with a left plug-in strip 43 and a left plug-in long hole 44 at the right end, and the right chest plate 42 is integrally provided with a right plug-in strip 45 and a right plug-in long hole 46 at the left end. The left plug-in strip 43, the left plug-in long hole 44, the right plug-in strip 45 and the right plug-in long hole 46 are located at the same height. The left plug-in strip 43 and the right plug-in strip 45 are overlapped front to back. The left plug-in strip 43 passes through the right plug-in long hole 46, and the right plug-in strip 45 passes through the left plug-in long hole 44. The front sides of the left chest plate 41 and the right chest plate 42 are connected by a transverse strap.

[0043] A hip limiting belt 47 is provided between the upper rear side of the left thigh swing bar 21 and the upper rear side of the right thigh swing bar 21 .

[0044] When the present invention is used, the present invention is first put on the body, and the shoulder straps 14, upper pull belts 15, lower pull belts 16, waist belts 17, transverse straps and hip limit belts 47 are all connected and fixed in place. First, the clutch blocks 24 on the left and right sides are moved upward along the clutch slots 31 to make the clutch plate 23 and the swing plate 25 integrated. When bending over to lift heavy objects, the mounting column 2, back plate 3, arc-shaped waist guard plate 4, hip joint guard plate 8, horizontal rotation assembly 48, and mounting plate 9 rotate forward and downward with the swing shaft 26 as the center line. At this time, it is also equivalent to the thigh swing arm 21, swing plate 25, guide wheel plate 22, and clutch plate 23 rotating forward and upward with the swing shaft 26 as the center line when not bending over. The position of the fastening bolt 29 also rotates forward and upward, and the first pull wire 10 and the third pull wire 12 are stretched by the pull wire fastening bolt 29. The high-pressure pneumatic rod stores energy after being pulled by the first pull wire 10 and the third pull wire 12, and the high-pressure pneumatic rod assists the bending action. The second pull wire 11 and the fourth pull wire 13 are in a tensioned state under the traction of the low-pressure pneumatic rod. When the heavy object is lifted upward, the stored energy of the high-pressure pneumatic rod is released, and with the assistance of the high-pressure pneumatic rod, the force on the waist is reduced.

[0045] When the legs are crossed and moving forward, for example, the left leg steps forward and the human body moves forward, at this time the right leg is equivalent to moving backward, the left leg drives the left thigh swing rod 21 to rotate forward and upward, the position of the left pull wire fastening bolt 29 also rotates forward and upward, the first pull wire 10 is stretched by the pull wire fastening bolt 29, the other end of the first pull wire 10 pulls the high-pressure gas pressure rod, the right leg drives the right thigh swing rod 21 to rotate backward and upward, the third pull wire 12 is relaxed, just offsetting the pulling of the first pull wire 10, so that when the legs are crossed and walking, the first pull wire 10 and the second pull wire 11 will not produce a large pulling force on the legs. Similarly, when the right leg steps forward and the human body moves forward, at this time the left leg is equivalent to moving backward, the third pull wire 12 pulls the high-pressure gas pressure rod, the first pull wire 10 is relaxed, and the relaxed length of the first pull wire 10 is just the same as the pulling length of the first pull wire 10, so that when the legs are walking, the high-pressure gas pressure rod is not pulled to store energy, the legs are basically not obstructed by the pull wires, and walking is more comfortable.

[0046] The center lines of the horizontal pin 7, the rotating shaft 20 and the swinging shaft 26 are three axes of a three-dimensional coordinate system that are perpendicular to each other. This structure simulates the structure of the hip joint, allowing the leg to rotate and move in any direction.

[0047] When bending over and walking, the clutch block 24 moves upward to the uppermost end of the clutch slot 31, and is used to connect the swing plate 25 and the clutch plate 23, so that the thigh swing arm 21, the swing plate 25, the clutch plate 23 and the guide wheel plate 22 are connected as a whole; when squatting or sitting down to rest, the clutch block 24 can be moved downward to the lowermost end of the clutch slot 31, the thigh swing arm 21 rotates, and the fastening nut 30 of the pull wire fastening bolt 29 rotates in the arc slot 28, so as to avoid the first pull wire 10 and the third pull wire 12 from generating tension at the same time to affect the comfort of the human body.

[0048] The friction force of the clutch block 24 moving up and down is adjusted by adjusting the screw 34 to adjust the degree of compression between the limit plate 33 and the inner side of the swing plate 25 .

[0049] The wire guide seat 40 serves to connect the wire tube and also serves to guide the wire.

[0050] The front ends of the two shoulder straps 14 are respectively connected to the upper parts of the left chest plate 41 and the right chest plate 42. The left chest plate 41 and the right chest plate 42 are connected by the left plug-in strip 43 and the right plug-in strip 45, which play a positioning role of not misaligning the upper and lower parts. The left chest plate 41 and the right chest plate 42 are connected by a transverse strap, so that the left chest plate 41 and the right chest plate 42 are connected as a whole, and bear the pulling force of the shoulder straps 14, the upper pull strap 15, and the lower pull strap 16, so as to ensure the stability of the present invention when worn on the body.

[0051] The lower end of the thigh swing rod 21 is connected to the human thigh through the thigh binding assembly 50. The points of force for bending the waist are located at the front of the two thighs, the buttocks, and the front of the chest (if there is an arm strap accessory, this part of the force will be shared).

[0052] The buttocks limiting belt 47 is located at the connection position between the thigh and the buttocks, and plays a role in preventing the buttocks from being misaligned with the device when bending over.

[0053] The arc-shaped connecting plate 35 of the thigh lashing assembly 50 can move up and down on the thigh swing rod 21. By moving the connecting hole 39 on the thigh swing rod 21 corresponding to the adjusting bolt, the height of the thigh lashing assembly 50 can be adjusted to suit the lashing of different people. The thigh front guard plate 36 and the thigh rear guard plate 37 are respectively connected to the arc-shaped connecting plate 35 through a pin shaft, so that the angle can be adjusted to fully fit the thigh surface.

[0054] This embodiment does not impose any formal limitation on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A non-powered waist assist device adapted to human body movements, characterized in that: It comprises a chest plate and a mounting column vertically arranged at the rear side of the chest plate, a back plate and an arc-shaped waist guard plate are fixedly arranged at intervals from top to bottom on the front side of the mounting column, a first energy storage elastomer and a second energy storage elastomer are respectively arranged on the left and right sides of the mounting column, the left and right sides of the lower part of the arc-shaped waist guard plate are rotatably connected to the hip joint guard plate through a horizontal pin shaft arranged along the front-back direction, the outer side of the hip joint guard plate is rotatably connected to the mounting plate through a horizontal rotating assembly, the outer side of the mounting plate is rotatably connected to the leg swing rod assembly, the first energy storage elastomer and the second energy storage elastomer both have two power ends in opposite directions, one power end of the first energy storage elastomer is connected to the leg swing rod assembly on the left side through a first pull line, the other power end of the first energy storage elastomer is connected to the leg swing rod assembly on the right side through a second pull line, one power end of the second energy storage elastomer is connected to the leg swing rod assembly on the left side through a third pull line, the other power end of the second energy storage elastomer is connected to the leg swing rod assembly on the right side through a fourth pull line, and the first pull line, the second pull line, the third pull line and the fourth pull line are connected end to end to form a closed-circuit power-assisting ring; A shoulder strap is provided between the upper part of the back plate and the upper part of the chest plate, an upper pull strap is provided between the outer part of the chest plate and the lower part of the back plate, a lower pull strap is provided between the outer part of the chest plate and the upper part of the curved waist guard, a waist belt is provided between the left and right sides of the curved waist guard, and thigh binding assemblies are provided at the lower parts of the two leg swing bar assemblies; The leg swing arm assembly includes a thigh swing arm, a guide wheel disc, a clutch disc and a clutch block. A swing disc is integrally provided at the upper end of the thigh swing arm. The swing disc, the clutch disc and the guide wheel disc are sequentially arranged from the inside to the outside. The centers of the swing disc, the clutch disc and the guide wheel disc are rotatably connected to the mounting plate through a swing shaft. The inner side surface of the swing disc contacts the outer side surface of the mounting plate. The guide wheel disc and the clutch disc are fixedly connected. An annular wire groove is provided between the outer circle of the guide wheel disc and the disc surface of the clutch disc. An arc-shaped slot hole with the swing shaft as the center line is opened on the swing disc. A mounting groove is provided in the radial direction of the clutch plate, a wire fastening bolt is provided at the lower part of the clutch plate, the head of the wire fastening bolt is located in the mounting groove, a fastening nut located in the arc-shaped slot hole is bolted to the wire fastening bolt, clutch slot holes are correspondingly provided at the lower part of the clutch plate and the swing plate, the clutch slot hole on the swing plate extends downward to the thigh swing rod, a clutch block is provided in the clutch slot hole, a handle protrusion is provided on the outer side of the clutch block, a limit plate with a width greater than the clutch slot hole is provided on the inner side of the clutch block, and the limit plate is connected to the clutch block by a screw; The first cable passes through the lower rear part of the annular wire groove of the guide wheel disc of the left leg swing arm assembly and is connected to the cable fastening bolt, the second cable passes through the lower rear part of the annular wire groove of the guide wheel disc of the right leg swing arm assembly and is connected to the cable fastening bolt; the third cable passes through the upper front part of the annular wire groove of the guide wheel disc of the left leg swing arm assembly and is connected to the cable fastening bolt, the fourth cable passes through the upper front part of the annular wire groove of the guide wheel disc of the right leg swing arm assembly and is connected to the cable fastening bolt; The first energy storage elastic body is a high-pressure gas pressure rod, and the second energy storage elastic body is a low-pressure gas pressure rod.

2. The non-powered waist assist device adapted to human body movement according to claim 1, characterized in that: The horizontal rotation assembly includes a positioning sleeve, a rotating seat and a rotating shaft. The positioning sleeve is fixedly connected to the outside of the hip joint guard. The rotating shaft is vertically connected to the positioning sleeve. The rotating seat is arranged below the positioning sleeve. The lower end of the rotating shaft is fixedly connected to the rotating seat. The inner side of the rotating seat is fixedly connected to the outer side of the upper part of the mounting plate.

3. The non-powered waist assist device adapted to human body motion according to claim 1, characterized in that: The thigh binding assembly includes an arc-shaped connecting plate, a front thigh guard plate, a rear thigh guard plate and a thigh strap. A plurality of connecting holes are evenly arranged on the thigh swing rod in the height direction. The arc-shaped connecting plate is connected to the thigh swing rod by at least two adjusting bolts passing through the connecting holes respectively. The front thigh guard plate is connected to the front side of the arc-shaped connecting plate, and the rear thigh guard plate is connected to the rear side of the arc-shaped connecting plate. The front and rear ends of the thigh strap are respectively connected to the front thigh guard plate and the rear thigh guard plate.

4. The non-powered waist assist device adapted to human body motion according to claim 1, characterized in that: A wire guide seat is fixedly provided on the mounting plate above the rear of the swing plate. The wire guide seat has two through holes for passing the wire. A wire tube is provided on the outer sleeve of the wire between the wire guide seat and the energy storage elastic body.

5. The non-powered waist assist device adapted to human body motion according to claim 1, characterized in that: The chest plate includes a left chest plate and a right chest plate. The right end of the left chest plate is integrally provided with a left plug-in strip and a left plug-in long hole, and the left end of the right chest plate is integrally provided with a right plug-in strip and a right plug-in long hole. The left plug-in strip, the left plug-in long hole, the right plug-in strip and the right plug-in long hole are located at the same height. The left plug-in strip and the right plug-in strip are overlapped front to back. The left plug-in strip passes through the right plug-in long hole, and the right plug-in strip passes through the left plug-in long hole. The front sides of the left chest plate and the right chest plate are connected by a transverse strap.

6. The non-powered waist assist device adapted to human body motion according to claim 1, characterized in that: A hip limiting belt is arranged between the upper rear side of the left thigh swing bar and the upper rear side of the right thigh swing bar.

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