Load-bearing-free walking brace for lower limbs

Abstract

A fixing piece is arranged on a thigh fixing sleeve, a fixing buckle capable of being matched with the fixing sleeve is arranged, the fixing buckle comprises a first mounting plate and a second mounting plate, one end of the first mounting plate is rotationally connected relative to the second mounting plate, and the other end of the first mounting plate is rotationally connected with the thigh fixing sleeve. The other end of the first mounting plate is provided with an annular hole for a thigh fixing band to pass through, and the other end of the second mounting plate is detachably mounted with the fixing piece; in the using state, one end of the thigh fixing band is fixed to the thigh fixing sleeve, the other end of the thigh fixing band penetrates through the annular hole to be reversely folded and then is attached to the rough face of the thigh fixing band, when the second mounting plate and the fixing piece are in the mounting state, the thigh is fixed by the thigh fixing sleeve, and when the second mounting plate and the fixing piece are in the dismounting state, the thigh is loosened by the thigh fixing sleeve. The thigh can be fixed and loosened by dismounting and mounting the fixing buckle and the fixing piece, so that the operation steps are simplified, the operation time is shortened, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a lower limb weight-free walking brace. Background Art

[0002] Usually, fractures of the limbs below the knee require surgical treatment, and after treatment, they need to be bandaged and fixed to avoid stress. Patients need to rely on rehabilitation equipment in daily life to avoid stress on the limbs below the knee when walking, which may cause secondary damage to the fracture. Currently, there are many types of walking rehabilitation aids on the market. When fixing the thigh, these aids usually use a fixing strap to pass through multiple fixing rings, and then fix the Velcro on the fixing strap with the fleece surface. When unfastening it, you need to first unfasten the Velcro and the fleece surface, and then pass through the fixing ring to remove the fixing strap. The operation is cumbersome and time-consuming. Summary of the invention

[0003] The technical problem to be solved by the present invention is that when the medical rehabilitation auxiliary brace in the prior art is used to fix the thigh, the fixing and unfastening operations of the fixing straps are cumbersome and time-consuming.

[0004] In order to solve the problems existing in the prior art, a lower limb weight-free walking brace is disclosed, the brace comprises a Y-shaped bracket, a thigh fixing sleeve and a leg sleeve assembly, the thigh fixing sleeve is an open design, the thigh fixing sleeve is fixedly installed on the Y-shaped bracket, and a fixing piece is arranged on the thigh fixing sleeve;

[0005] The leg cover assembly comprises a thigh fixing belt and a fixing buckle, wherein the first end of the thigh fixing belt is fixedly mounted on the thigh fixing cover, the second end of the thigh fixing belt is provided with a first connecting portion, and the surface of the thigh fixing belt is provided with a second connecting portion, and the surface is located between the first end and the second end;

[0006] The fixing buckle includes a first mounting plate and a second mounting plate, one end of the first mounting plate is rotatably connected relative to the second mounting plate, the other end of the first mounting plate is provided with a loop hole for passing the thigh fixing belt, and the other end of the second mounting plate is detachably mounted on the fixing piece; after the second end of the thigh fixing belt passes through the loop hole, the first connecting portion and the second connecting portion cooperate with each other, when the first connecting portion cooperates with the second connecting portion and the second mounting plate and the fixing piece are in the installed state, the thigh is fixed by the thigh fixing sleeve, and when the first connecting portion cooperates with the second connecting portion and the second mounting plate and the fixing piece are in the disassembled state, the thigh is released by the thigh fixing sleeve.

[0007] Furthermore, the fixing buckle also includes a third mounting plate, one end of the third mounting plate is rotatably connected to the first mounting plate, the other end of the third mounting plate is rotatably connected to the second mounting plate, and the third mounting plate is stacked on the second mounting plate through a stacking piece in the first state.

[0008] In an implementable solution, the first connecting portion is one of a fleece surface and a hook surface, and the second connecting portion is the other of the fleece surface and the hook surface.

[0009] In an implementable solution, the fixing member is one of a fixing hole or a positioning pin, the other end of the second mounting plate is provided with the other of the fixing hole or the positioning pin, and the second mounting plate is detachably mounted on the fixing member via the positioning pin or the fixing hole.

[0010] In an implementable solution, the fixing member is a slot or a protrusion, the other end of the second mounting plate is provided with the other slot or the protrusion, and the second mounting plate is detachably mounted to the fixing member via the slot or the protrusion.

[0011] Furthermore, the stacking part includes a first stacking part and a second stacking part, the first stacking part is arranged on the third mounting plate, and the second stacking part is arranged on the second mounting plate, when the third mounting plate is in the first state, the first stacking part and the second stacking part cooperate with each other so that the third mounting plate is stacked on the second mounting plate, the third mounting plate and the second mounting plate are locked with each other, and the first stacking part limits the mutual rotation of the second mounting plate relative to the third mounting plate; when the third mounting plate is in the second state, the first stacking part releases the mutual rotation of the second mounting plate relative to the third mounting plate, and the third mounting plate and the second mounting plate are unlocked from each other.

[0012] Furthermore, a calf fixing mechanism is also installed on the Y-shaped bracket, and the calf fixing mechanism is installed on the Y-shaped bracket, and the calf fixing mechanism is located below the thigh fixing sleeve. The calf fixing mechanism includes a calf fixing belt and calf fixing rings arranged on both sides of the Y-shaped bracket, one end of the calf fixing belt is fixed to the calf fixing ring on one side of the Y-shaped bracket, and the other end of the calf fixing belt is provided with a third connecting part, and the surface of the calf fixing belt is provided with a fourth connecting part, and after the other end of the calf fixing belt passes through the calf fixing ring on the other side of the Y-shaped bracket and is folded back, the third connecting part cooperates with the fourth connecting part to complete the fixation of the calf.

[0013] Furthermore, the Y-shaped bracket includes a bottom rod and two support rods extending in a Y shape from the top of the bottom rod, and the two support rods and the bottom rod are adjustably connected via a connecting block.

[0014] Furthermore, an elastic lining plate is also provided at the bottom of the bottom bar, and the elastic lining plate is connected to the bottom of the bottom bar through a torsion spring.

[0015] Furthermore, a shoe cover strap is also provided on the elastic backing plate, one end of the calf fixing strap is fixed to the calf fixing ring on one side of the Y-shaped bracket, and the other end of the calf fixing strap passes through the shoe cover strap and the calf fixing ring on the other side of the Y-shaped bracket in sequence and is folded back, and the third connecting part cooperates with the fourth connecting part to complete the fixation of the calf.

[0016] The beneficial effects that may be brought about by the embodiments of the present specification include but are not limited to: (1) a fixing piece is provided on the thigh fixing sleeve, and a fixing buckle that can cooperate with the fixing sleeve is configured, and the thigh can be fixed and loosened by disassembling and installing the fixing buckle and the fixing piece, which simplifies the operation steps, shortens the operation time, and improves the operation efficiency; (2) the connection method of the fixing buckle and the fixing piece adopts a connection method in which the positioning pin is inserted into the fixing hole and the protrusion is inserted into the card slot. The connection method is simple and easy to operate, and can realize quick installation and removal, saving time and manpower; (3) by adjusting the adjustment holes and the connection holes at different positions on the bottom rod, the thigh can be fixed and loosened. The fixed position of the fixing hole on the connecting block can adjust the overall size and length of the Y-shaped bracket, which can be suitable for people with different leg lengths; (4) By setting an elastic backing plate on the bottom rod, the patient's feet are supported to avoid the patient's feet being in a suspended position and causing discomfort; (5) The use of elastic adjustable shoe straps reduces the direct pressure of the calf strap on the skin, reduces friction and discomfort, and improves overall comfort. In addition, the dual design of the calf strap and the shoe strap ensures the safety of the patient during exercise or rehabilitation training, prevents accidental falling off or slipping, and improves the safety of the patient. (6) The action of the spring can realize the rotation of the foot pedal, so that the foot can be placed on the foot pedal for rehabilitation exercises. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of a fixing buckle in an embodiment of the present invention;

[0019] Figure 2 is another structural schematic diagram of a fixing buckle in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the use status of the fixing buckle in the embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of the overall installation structure of an embodiment of the present invention;

[0022] Figure 5 Another schematic diagram of the overall installation of the embodiment of the present invention from another angle;

[0023] Figure 6 is a schematic structural diagram of a fixing sleeve according to an embodiment of the present invention;

[0024] Figure 7 is a plan view of a fixing sleeve according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of a usage state of an embodiment of the present invention;

[0026] Fig. 9 is another schematic diagram of a use state of an embodiment of the present invention;

[0027] Fig.10 This is another schematic diagram of a usage state of an embodiment of the present invention;

[0028] Fig.11 This is another schematic diagram of a usage state of an embodiment of the present invention;

[0029] In the figure: 1-Y-shaped bracket, 11-thigh fixing ring, 12-thigh fixing sleeve, 121-fixing piece, 13-leg sleeve assembly, 131-thigh fixing belt, 132-fixing buckle, 1321-first mounting plate, 13211-ring hole, 1322-second mounting plate, 1323-third mounting plate, 1324-superimposed piece, 14-calf fixing mechanism, 141-calf fixing belt, 142-calf fixing ring, 15-support rod, 16-connecting block, 17-bottom rod, 171-elastic lining plate, 1711-torsion spring, 1712-shoe cover belt. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "inner", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0032] In order to solve the problems existing in the prior art, the present application provides a lower limb weight-free walking brace. Figure 1-Figure 11 As shown, the brace includes a Y-shaped bracket 1, on which a thigh fixing ring 11, a thigh fixing sleeve 12 and a leg sleeve assembly 13 are arranged, the thigh fixing ring 11 is fixedly mounted on one side of the Y-shaped bracket 1, the thigh fixing sleeve 12 is of an open design, the thigh fixing sleeve 12 is fixedly mounted on the Y-shaped bracket 1, one side of the thigh fixing sleeve 12 is adjacent to the thigh fixing ring 11, and the other side of the thigh fixing sleeve 12 is provided with a fixing piece 121; wherein the leg sleeve assembly 13 includes a thigh fixing belt 131 and a fixing buckle 132, the first end of the thigh fixing belt 131 is fixedly mounted on the thigh fixing ring 11, the second end of the thigh fixing belt 131 is provided with a first connecting portion, the surface of the thigh fixing belt 131 is provided with a second connecting portion, and the surface is located between the first end and the second end; the fixing buckle 13 2 comprises a first mounting plate 1321 and a second mounting plate 1322, one end of the first mounting plate 1321 is rotatably connected with the second mounting plate 1322, the other end of the first mounting plate 1321 is provided with a ring hole 13211 for passing through the thigh fixing belt, and the other end of the second mounting plate 1322 is detachably mounted with the fixing piece 121; after the second end of the thigh fixing belt 131 passes through the ring hole 13211, the first connecting part and the second connecting part cooperate with each other, when the first connecting part cooperates with the second connecting part and the second mounting plate 1322 and the fixing piece 121 are in the installed state, the thigh is fixed by the thigh fixing sleeve 12, and when the first connecting part cooperates with the second connecting part and the second mounting plate 1322 and the fixing piece 121 are in the disassembled state, the thigh is released from the thigh fixing sleeve 12.

[0033] The thigh can be fixed and loosened by disassembling and installing the fixing buckle 132 and the fixing member 121, which simplifies the operation steps, shortens the operation time and improves the operation efficiency.

[0034] In an operative solution, the cooperation between the first connection part and the second connection part can be based on the principle of Velcro. For example, the first connection part can be the fur side of Velcro, and the second connection part can be the hook side of Velcro. Alternatively, in another operative solution, the first connection part can be the hook side of Velcro, and the second connection part can be the fur side of Velcro. The first connection part and the second connection part are used to bond the thigh fixing belt 131 passing through the loop hole 13211 at a suitable position to help fix the thigh.

[0035] It can be understood that the cooperation between the first connecting part and the second connecting part based on the Velcro principle is only a preferred solution. In other feasible solutions, the first connecting part and the second connecting part can also be connected by a snap connection or a lace connection. Specifically, it can be set according to actual conditions and is not specifically limited here.

[0036] Further, in an operative solution, the fixing member 121 may be a positioning pin, the other end of the second mounting plate 1322 may be set as a fixing hole, and the second mounting plate 1322 may be detachably mounted with the fixing member 121 through the fixing hole. In another operative solution, the fixing member 121 may be a fixing hole, the other end of the second mounting plate 1322 may be set as a positioning pin, and the second mounting plate 1322 may be detachably mounted with the fixing member 121 through the positioning pin. After the positioning pin is inserted into the fixing hole, it can withstand a large shear force and a pulling force, thereby improving the strength and bearing capacity of the connection part, thereby providing a firm connection, ensuring the stability and reliability of the installation, not easy to loosen or fall off, and the connection method is simple, the operation is convenient, and it can realize rapid installation and disassembly, saving time and manpower. In another operative solution, the fixing member 121 may be a card slot, the other end of the second mounting plate 1322 may be set as a protrusion, and the second mounting plate 1322 may be detachably mounted with the fixing member 121 through the protrusion. In another feasible solution, the fixing member 121 may be a protrusion, and the other end of the second mounting plate 1322 may be provided with a slot, and the second mounting plate 1322 is detachably mounted through the slot and the fixing member 121. The cooperation between the slot and the protrusion has a self-locking function, which can be automatically locked after installation to prevent accidental falling off, thereby improving the stability of the connection.

[0037] It is understandable that the fixing buckle 132 and the fixing member 121 can also be connected in a detachable manner such as a spring and a hook, a buckle and a button.

[0038] Further, such as Figure 2 and Figure 3As shown, in an implementable scheme, the fixing buckle 121 also includes a third mounting plate 1323, one end of the third mounting plate 1323 is rotatably connected to the first mounting plate 1321, and the other end of the third mounting plate 1323 is rotatably connected to the second mounting plate 1322. The third mounting plate 1323 is stacked on the second mounting plate 1322 through a stacking piece 1324 in the first state. By opening and closing the stacking piece 1324 on which the third mounting plate 1323 is stacked on the second mounting plate 1322, the length of the thigh fixing belt 131 can be further adjusted.

[0039] For further information, please refer to Figure 2 and Figure 3 The stacking piece 1324 includes a first stacking portion and a second stacking portion, the first stacking portion is arranged on the third mounting plate 1323, and the second stacking portion is arranged on the second mounting plate 1322. When the third mounting plate 1323 is in the first state, the first stacking portion and the second stacking portion cooperate with each other so that the third mounting plate 1323 is stacked on the second mounting plate 1322, and the third mounting plate 1323 and the second mounting plate 1322 are locked with each other, and the first stacking portion limits the mutual rotation of the second mounting plate 1322 relative to the third mounting plate 1323; when the third mounting plate 1323 is in the second state, the first stacking portion releases the mutual rotation of the second mounting plate 1322 relative to the third mounting plate 1323, and the third mounting plate 1323 and the second mounting plate 1322 are unlocked from each other. Specifically, the first overlapping portion cooperates with the second overlapping portion to hide the connection portion of the second connecting plate 1322 and the third connecting plate 1323, so that the second mounting plate 1322 and the third mounting plate 1323 are stacked on each other as a whole, making the entire fixing buckle 132 more beautiful and neat.

[0040] Further, see Figure 1-Figure 8 The Y-shaped bracket 1 is also provided with a calf fixing mechanism 14, which is installed on the Y-shaped bracket 1 and is located below the thigh fixing sleeve 12. The calf fixing mechanism 14 comprises a calf fixing belt 141 and calf fixing rings 142 arranged on both sides of the Y-shaped bracket 1. One end of the calf fixing belt 141 is fixed on the calf fixing ring 142 on one side of the Y-shaped bracket 1. The other end of the calf fixing belt 141 is provided with a third connecting portion, and the surface of the calf fixing belt 141 is provided with a fourth connecting portion. After the other end of the calf fixing belt 141 passes through the calf fixing ring 142 on the other side of the Y-shaped bracket 1 and is folded back, the third connecting portion cooperates with the fourth connecting portion to complete the fixation of the calf. The calf fixing mechanism 14 is used together with the thigh fixing sleeve 12 and the Y-shaped bracket 1 to form a complete support system, providing comprehensive leg fixation and support functions, so that the patient can perform safe, effective and convenient walking exercises without bearing weight.

[0041] Further, such as Figure 4 As shown, the Y-shaped bracket 1 includes a bottom bar 17 and two support bars 15 extending in a Y shape from the top of the bottom bar 17. Preferably, the two support bars 15 and the bottom bar 17 are adjustably connected via a connecting block 16. Seen from the side, the two support bars 15 extend obliquely upward from the top of the bottom bar 17, which is conducive to fixing the entire leg of the user on the Y-shaped bracket 1, so that the angle between the thigh and the calf is greater than 90°.

[0042] Specifically, in an implementable solution, the two sides of the connecting block 16 are fixedly connected to the two support rods 15, and the bottom rod 17 is provided with a plurality of adjustment holes along the length direction from top to bottom. A fixing hole is provided in the middle part of the connecting block 16, and bolts pass through the adjustment holes and the fixing holes to fix the support rods 15 and the bottom rod 17. By adjusting the adjustment holes at different positions and the fixed positions of the fixing holes, the overall size and length of the Y-shaped bracket 1 can be adjusted, which can be suitable for people with different leg lengths.

[0043] Further, such as Figure 5 and Fig. 9 As shown, a lining plate 171 is also provided at the bottom of the bottom bar 17, and the lining plate 171 is connected to the bottom of the bottom bar 17 via a torsion spring 1711. Preferably, the lining plate 171 is detachably connected to the bottom bar 17. The lining plate 171 is used to support the patient's feet to prevent the patient's feet from being suspended in the air and causing discomfort. When the foot is placed on the lining plate 171 and the sole of the foot steps on the lining plate 171 with force, the torsion spring 1711 deforms and the lining plate 171 can rotate relative to the bottom bar. When the sole of the foot gives up stepping on the lining plate with force, the deformation of the spring disappears and returns to its original state, and the lining plate is perpendicular to the bottom bar. Preferably, a shoe cover strap 1712 is also provided on the lining plate 171. For details, refer to Fig. 9 , when the sole of the foot is supported on the backing plate 171, one end of the calf fixing strap 141 is fixed to the calf fixing ring 142 on one side of the Y-shaped bracket 1, and the other end of the calf fixing strap 141 passes through the shoe cover strap 1712 and the calf fixing ring 142 on the other side of the Y-shaped bracket 1 in sequence, and then the third connecting portion 1411 cooperates with the fourth connecting portion 1412 to complete the fixation of the calf. After the calf fixing strap 141 passes through the shoe cover strap 1712 and the calf fixing ring 142 of the Y-shaped bracket 1, the patient's foot can be fixed more firmly, reducing the risk of displacement and loosening. Preferably, the elastic force of the shoe cover strap 1712 is adjustable, which can reduce the direct pressure of the calf fixing strap 141 on the skin, reduce friction and discomfort, and improve the overall comfort. The dual design of the calf fixing strap 141 and the shoe cover strap 1712 ensures safety during exercise or rehabilitation training, prevents accidental falling off or slipping, and improves the safety of the patient.

[0044] For further information, see Fig.10The calf fixing belt 141 realizes double fixation of the sole of the foot through the shoe cover belt 1712 and the lining plate 171, further improving the fixation stability of the sole of the foot.

[0045] For further information, see Fig.11 When the sole of the foot needs to swing to a certain extent, the calf fixing belt 141 can be based on Fig.11 The binding mode realizes the binding of the calf and the support of the sole of the foot by the calf fixing belt 141. Since the calf fixing belt 141 has a certain elasticity, the sole of the foot is supported by the calf fixing belt, and the sole of the foot can realize a certain range of swing by the elastic effect of the calf fixing belt 141.

[0046] The lower limb weight-free walking brace of this scheme is provided with a fixing piece 121 on the thigh fixing sleeve 12, and is provided with a fixing buckle 132 that can cooperate with the fixing piece 121. The fixing and loosening of the thigh can be completed by disassembling and installing the fixing buckle 132 and the fixing piece 121, which simplifies the operation steps, shortens the operation time, and improves the operation efficiency.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A lower limb weight-free walking brace, characterized in that: The brace comprises a Y-shaped bracket (1), a thigh fixing sleeve (12) and a leg sleeve assembly (13); the thigh fixing sleeve (12) is of an open design; the thigh fixing sleeve (12) is fixedly mounted on the Y-shaped bracket (1); and a fixing piece (121) is provided on the thigh fixing sleeve (12); The leg cover assembly (13) comprises a thigh fixing belt (131) and a fixing buckle (132), the first end of the thigh fixing belt (131) is fixedly mounted on the thigh fixing cover (12), the second end of the thigh fixing belt (131) is provided with a first connecting portion, and the surface of the thigh fixing belt (131) is provided with a second connecting portion, and the surface is located between the first end and the second end; The fixing buckle (132) comprises a first mounting plate (1321) and a second mounting plate (1322); one end of the first mounting plate (1321) is rotatably connected to the second mounting plate (1322); the other end of the first mounting plate (1321) is provided with a ring hole (13211) for passing the thigh fixing belt (131); the other end of the second mounting plate (1322) is detachably mounted on the fixing member (121); after the second end of the thigh fixing belt (131) passes through the ring hole (13211), the first connecting member (1321) is detachably mounted on the fixing member (121); The connecting portion (1311) and the second connecting portion (1312) cooperate with each other. When the first connecting portion (1311) and the second connecting portion (1312) cooperate and the second mounting plate (1322) and the fixing member (121) are in an installed state, the thigh is fixed by the thigh fixing sleeve (12). When the first connecting portion (1311) and the second connecting portion (1312) cooperate and the second mounting plate (1322) and the fixing member (121) are in a disassembled state, the thigh is released by the thigh fixing sleeve (12).

2. The lower limb weight-free walking brace according to claim 1, characterized in that: The fixing buckle (132) also includes a third mounting plate (1323), one end of the third mounting plate (1323) is rotatably connected to the first mounting plate (1321), and the other end of the third mounting plate (1323) is rotatably connected to the second mounting plate (1322). In the first state, the third mounting plate (1323) is stacked on the second mounting plate (1322) through a stacking piece (1324).

3. The lower limb weight-free walking brace according to claim 1, characterized in that: The first connecting portion is one of a fleece surface and a hook surface, and the second connecting portion is the other of the fleece surface and the hook surface.

4. The lower limb weight-free walking brace according to claim 1, characterized in that: The fixing member (121) is one of a fixing hole and a positioning pin, and the other end of the second mounting plate (1322) is provided with the other of the fixing hole and the positioning pin, and the second mounting plate (1322) is detachably mounted with the fixing member (121) via the positioning pin or the fixing hole.

5. The lower limb weight-free walking brace according to claim 1, characterized in that: The fixing member (121) is one of a slot or a protrusion, and the other end of the second mounting plate (1322) is provided with the other of the slot or the protrusion, and the second mounting plate (1322) is detachably mounted with the fixing member (121) via the slot or the protrusion.

6. The lower limb weight-free walking brace according to claim 2, characterized in that: The stacking member (1324) includes a first stacking portion and a second stacking portion, wherein the first stacking portion is arranged on the third mounting plate (1323), and the second stacking portion is arranged on the second mounting plate (1322); when the third mounting plate (1323) is in the first state, the first stacking portion and the second stacking portion cooperate with each other so that the third mounting plate (1323) is stacked on the second mounting plate (1322), and the third mounting plate (1323) and the second mounting plate (1322) are locked with each other, and the first stacking portion limits the mutual rotation of the second mounting plate (1322) relative to the third mounting plate (1323); when the third mounting plate (1323) is in the second state, the first stacking portion releases the mutual rotation of the second mounting plate (1322) relative to the third mounting plate (1323), and the third mounting plate (1323) and the second mounting plate (1322) are unlocked from each other.

7. The lower limb weight-bearing walking brace according to claim 1, characterized in that: The Y-shaped bracket (1) is also provided with a calf fixing mechanism (14). The calf fixing mechanism (14) is installed on the Y-shaped bracket (1). The calf fixing mechanism (14) is located below the thigh fixing sleeve (12). The calf fixing mechanism (14) comprises a calf fixing belt (141) and calf fixing rings (142) arranged on both sides of the Y-shaped bracket (1). One end of the calf fixing belt (141) is fixed to the calf fixing ring (142) on one side of the Y-shaped bracket (1). The other end of the calf fixing belt (141) is provided with a third connecting portion. The surface of the calf fixing belt (141) is provided with a fourth connecting portion. After the other end of the calf fixing belt (141) passes through the calf fixing ring (142) on the other side of the Y-shaped bracket (1) and is folded back, the third connecting portion cooperates with the fourth connecting portion to complete the fixing of the calf.

8. The lower limb weight-free walking brace according to claim 1, characterized in that: The Y-shaped bracket (1) comprises a bottom rod (17) and two support rods (15) extending in a Y shape from the top of the bottom rod (17); the two support rods (15) and the bottom rod (17) are adjustably connected via a connecting block (16).

9. The lower limb weight-free walking brace according to claim 1, characterized in that: An elastic lining plate (171) is also provided at the bottom of the bottom rod (17), and the elastic lining plate (171) is connected to the bottom of the bottom rod (17) via a torsion spring (1711).

10. The lower limb weight-free walking brace according to claim 7, characterized in that: The elastic backing plate (171) is also provided with a shoe cover strap (1712); one end of the calf fixing strap (141) is fixed to the calf fixing ring (142) on one side of the Y-shaped bracket (1); the other end of the calf fixing strap (141) passes through the shoe cover strap (1712) and the calf fixing ring (142) on the other side of the Y-shaped bracket (1) in sequence, and after being folded back, the third connecting portion cooperates with the fourth connecting portion to complete the fixing of the calf.

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