Walking assistance device

Abstract

The utility model provides a walking assisting device which comprises a waist fixing part, a walking assisting part and a walking assisting part. The walking mechanism is provided with a walking part and a pedal which are arranged in sequence, the walking part is movably connected with the waist fixing part, the pedal is hinged to the walking part, the walking mechanism further comprises a wearing assembly and a driving part, and the driving part is in driving connection with the walking part so as to drive the walking part to rotate relative to the waist fixing part; the anti-falling assembly comprises an anti-falling frame and a speed limiting wheel set, the waist fixing part is movably connected with the anti-falling frame, the speed limiting pieces are located between the anti-falling frame and the rolling wheels and used for limiting the rolling speed of the rolling wheels, and the multiple speed limiting pieces and the multiple rolling wheels are arranged in a one-to-one correspondence mode. By means of the technical scheme, the problems that in the prior art, when coal mine workers carry heavy objects underground or walk for a long distance, physical burden is large, and safety is low can be solved.

Description

Technical Field

[0001] This utility model relates to the field of exoskeleton technology, and more specifically, to a walking assistance device. Background Technology

[0002] In the coal mining industry, coal miners often need to carry heavy objects or walk long distances in the underground environment, which not only consumes a lot of physical strength, but may also cause safety accidents due to fatigue.

[0003] In existing technologies, coal miners typically rely on their physical strength and experience when carrying or walking underground without additional auxiliary devices. Some coal mines use simple trolleys or track systems to assist in moving heavy objects, but the use of these devices is limited in narrow or steep tunnels and cannot directly assist workers in walking or reduce their physical burden. Utility Model Content

[0004] This invention provides a walking assistance device to solve the problems of high physical burden and low safety for coal miners when carrying heavy objects or walking long distances underground.

[0005] This utility model provides a walking assistance device, comprising: a waist fixing part for wearing around the waist of an employee; a walking mechanism movably disposed below the waist fixing part in a vertical direction, the walking mechanism having a walking part and a pedal arranged sequentially, the walking part being movably connected to the waist fixing part, the pedal being hinged to the walking part, and the pedal being fitted around the employee's feet; the walking mechanism having two sets, the two sets of walking mechanisms being arranged side by side on the waist fixing part; the walking mechanism further comprising a wear assembly and a driving component, the driving component being drivenly connected to the walking part to drive the walking part to rotate relative to the waist fixing part; and the wear assembly... The components are mounted on the walking mechanism, and the wearable components are fitted around the worker's legs. The fall protection component includes a fall protection frame and a speed-limiting wheel assembly. The projection of the waist fixation part and the walking mechanism on the ground in the vertical direction is located within the projection of the fall protection frame in the vertical direction. The waist fixation part is movably connected to the fall protection frame. The walking mechanism passes through the fall protection frame in the vertical direction. The speed-limiting wheel assembly includes multiple rollers and multiple speed-limiting components. The multiple rollers are movably mounted below the fall protection frame to drive the fall protection frame to move on the horizontal plane. The speed-limiting components are located between the fall protection frame and the rollers and are used to limit the rolling speed of the rollers. The multiple speed-limiting components are set one-to-one with the multiple rollers.

[0006] Furthermore, the anti-fall component also includes a movable component, which is vertically disposed on the anti-fall frame and located between the anti-fall frame and the waist fixing part; the movable component has a fixed end and a movable end disposed opposite to each other in the vertical direction, the fixed end is connected to the anti-fall frame, and the movable end is movably connected to the waist fixing part.

[0007] Furthermore, the active component includes a first telescopic member that extends vertically and has a first connecting section and a first movable section disposed opposite to each other. The first connecting section is connected to the fall protection frame, and the first movable section is movable relative to the first connecting section in a vertical direction so that the waist fixing part can move in a vertical direction. The first connecting section forms a fixed end.

[0008] Furthermore, the movable component includes a second telescopic member that extends horizontally. The second telescopic member has a second connecting section and a second moving section disposed opposite to each other. The second connecting section is connected to the first moving section. The second moving section is movable relative to the second connecting section in the horizontal direction, so that the waist fixing part can move in the horizontal direction. The first moving section and the second telescopic member cooperate with each other to form a movable end.

[0009] Furthermore, the speed-limiting wheel assembly also includes a protective shell, which is located below the anti-fall frame. The roller is rotatably mounted at the end of the protective shell. The speed-limiting component includes: a sliding rod and a first spring. The sliding rod extends vertically, with one end connected to the anti-fall frame and the other end movably inserted into the protective shell. The first spring is sleeved on the outer periphery of the sliding rod, with one end connected to the anti-fall frame and the other end connected to the protective shell. A contact structure is inserted through the protective shell and has a driving end and a contact end. The driving end is connected to the end of the sliding rod away from the anti-fall frame and moves synchronously with the sliding rod. The driving end and the contact end are drivenly connected. The contact end is used to contact the roller. The contact structure has a contact position and a avoidance position. When the contact structure is in the contact position, the driving end can increase the friction between the contact end and the roller to adjust the rotation speed of the roller. When the contact structure is in the avoidance position, the contact structure avoids the roller.

[0010] Furthermore, the abutment structure includes: a transmission frame, disposed within the protective shell, one end of the transmission frame being connected to the end of the slide bar away from the anti-fall frame, the transmission frame forming a driving end; an abutment block and an abutment groove, the abutment groove being circumferentially disposed on the side of the roller facing the transmission frame, the abutment block being located within the abutment groove, the abutment block being drivenly connected to the transmission frame, the transmission frame being able to drive the abutment block to move to the abutment position, and engaging with the abutment groove for abutment.

[0011] Furthermore, the wearable component includes: an arc-shaped plate fixed to the walking part, the arc-shaped plate conforming to part of the worker's leg; an adjustment strap looped around the outer periphery of the arc-shaped plate, the adjustment strap and the arc-shaped plate cooperating to fit around the outer periphery of the worker's leg, the radial dimension of the adjustment strap being adjustable, one end of the adjustment strap having multiple sequentially spaced adjustment holes, the other end of the adjustment strap having an elastic protrusion on the side facing the adjustment holes, the elastic protrusion being correspondingly arranged with the adjustment holes, the elastic protrusion engaging with the adjustment holes to adjust the radial dimension of the adjustment strap.

[0012] Furthermore, the walking part includes: a thigh support having a third connecting section and a third moving section disposed opposite to each other, the third connecting section being hinged to the waist fixing part, and the third moving section being movable relative to the third connecting section along the extending direction of the thigh support; a calf support having a fourth connecting section and a fourth moving section disposed opposite to each other, the fourth moving section being movable relative to the fourth connecting section along the extending direction of the calf support, the fourth connecting section being hinged to the third moving section, the fourth moving section being hinged to the pedal, and both the thigh support and the calf support being provided with wearable components.

[0013] Furthermore, a sleeve and a rotating shaft are provided between the protective shell and the slide rod. The sleeve and the rotating shaft are sequentially sleeved on the outer circumference of the slide rod in a vertical direction. One end of the sleeve is connected to the end of the first spring, and one end of the rotating shaft is rotatably disposed inside the sleeve. The other end of the rotating shaft is connected to the protective shell.

[0014] Furthermore, the walking assistance device also includes a connector, which is disposed between the movable component and the waist fixing part. The second connecting section is hinged to the first moving section, and the second moving section is hinged to the connector. The walking assistance device has multiple movable components and multiple connectors, with each connector corresponding to one of the multiple movable components. The multiple movable components are spaced apart on the outer periphery of the waist fixing part.

[0015] By applying the technical solution of this utility model, the walking mechanism can provide auxiliary support for the worker's legs, reduce fatigue, prevent worker exhaustion, and improve work efficiency. The speed limiter in the speed-limiting wheel assembly can limit the rolling speed of the rollers, ensuring that the worker's movement speed is controllable in various complex terrains and reducing the possibility of falls. At the same time, when the worker loses balance, the anti-fall frame can provide further protection, providing additional support when the coal miner loses balance due to fatigue or uneven ground, reducing the risk of falls, thereby improving walking stability and providing important protection for the worker's life safety. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the walking assistance device provided by this utility model is shown;

[0018] Figure 2 A side view of the walking assistance device provided by this utility model is shown;

[0019] Figure 3 A schematic diagram showing a top view of the walking assistance device provided by this utility model is shown;

[0020] Figure 4 A partial cross-sectional view of the speed-limiting wheel assembly provided by this utility model is shown;

[0021] Figure 5 A partial cross-sectional view of the speed-limiting wheel assembly provided by this utility model is shown.

[0022] The above figures include the following reference numerals:

[0023] 10. Waist support;

[0024] 21. Walking section;

[0025] 211. Thigh support component;

[0026] 2111, Third connecting segment;

[0027] 2112. The third moving segment;

[0028] 212. Lower leg support components;

[0029] 2121, Fourth connecting segment;

[0030] 2122, Fourth moving segment;

[0031] 22. Pedal;

[0032] 23. Driving components;

[0033] 24. Wearable components;

[0034] 241. Curved plate;

[0035] 242. Adjusting belt;

[0036] 31. Drop-proof frame;

[0037] 32. Speed-limiting wheel set;

[0038] 321. Roller;

[0039] 41. First telescopic component;

[0040] 411. First connecting segment;

[0041] 412. First moving segment;

[0042] 42. Second telescopic component;

[0043] 421. Second connecting segment;

[0044] 422. Second moving segment;

[0045] 43. Elastic components;

[0046] 50. Protective casing;

[0047] 51. Sleeve;

[0048] 52. Rotating shaft;

[0049] 61. Slide bar;

[0050] 62. The first spring;

[0051] 71. Transmission frame;

[0052] 711. Slide groove;

[0053] 72. Abutment block;

[0054] 73. Abutment groove;

[0055] 74. The second spring;

[0056] 80. Connectors;

[0057] 81. Handle. Detailed Implementation

[0058] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0059] like Figures 1 to 5As shown, this embodiment of the utility model provides a walking assistance device, which includes: a waist fixing part 10, a walking mechanism, and a fall protection component. The waist fixing part 10 is fitted around the waist of the worker. The walking mechanism is vertically movably disposed below the waist fixing part 10. The walking mechanism has a walking part 21 and a pedal 22 arranged sequentially. The walking part 21 is movably connected to the waist fixing part 10, and the pedal 22 is hinged to the walking part 21, fitting around the worker's feet. There are two sets of walking mechanisms arranged side-by-side on the waist fixing part 10. The walking mechanism also includes a wearing component 24 and a driving component 23. The driving component 23 is drivenly connected to the walking part 21 to drive the walking part 21 to rotate relative to the waist fixing part 10. The wearing component 24 is disposed on the walking part 21 and fitted around the worker's legs. The anti-fall component includes an anti-fall frame 31 and a speed-limiting wheel assembly 32. The projections of the waist fixing part 10 and the walking mechanism on the ground in the vertical direction are located within the projection of the anti-fall frame 31 in the vertical direction. The waist fixing part 10 is movably connected to the anti-fall frame 31. The walking mechanism passes through the anti-fall frame 31 in the vertical direction. The speed-limiting wheel assembly 32 includes multiple rollers 321 and multiple speed-limiting components. The multiple rollers 321 are movably arranged below the anti-fall frame 31 to drive the anti-fall frame 31 to move on the horizontal plane. The speed-limiting components are located between the anti-fall frame 31 and the rollers 321. The speed-limiting components are used to limit the rolling speed of the rollers 321. The multiple speed-limiting components are arranged one-to-one with the multiple rollers 321.

[0060] By applying the technical solution of this utility model, the walking mechanism can provide auxiliary support for the worker's legs, reduce fatigue, prevent worker exhaustion, and improve work efficiency. The speed limiter in the speed-limiting wheel assembly 32 can limit the rolling speed of the rollers 321, ensuring that the worker's movement speed is controllable in various complex terrains and reducing the possibility of the worker falling. At the same time, when the worker loses balance, the anti-fall frame 31 can provide further protection, providing additional support when the worker loses balance due to fatigue or uneven ground, reducing the risk of falling, thereby improving walking stability and providing important protection for the worker's life safety.

[0061] In this application, the fall protection component also includes a movable component, which is vertically mounted on the fall protection frame 31 and located between the fall protection frame 31 and the waist fixing part 10. The movable component has a fixed end and a movable end arranged opposite each other in the vertical direction. The fixed end is connected to the fall protection frame 31, and the movable end is movably connected to the waist fixing part 10. The movable component ensures that the walking assistance device remains stable on various terrains, preventing falls and further improving its applicability, work efficiency, and safety. Furthermore, the movable component allows workers to move within the fall protection frame 31, increasing their mobility and range of motion.

[0062] The movable component includes a first telescopic member 41, which extends vertically and has a first connecting section 411 and a first movable section 412 disposed opposite to each other. The first connecting section 411 is connected to the fall protection frame 31, and the first movable section 412 can move vertically relative to the first connecting section 411, so that the waist fixing part 10 can move vertically. The first connecting section 411 forms a fixed end. This design allows the fall protection component to adapt to slopes or uneven ground, ensuring that the waist fixing part 10 remains relatively horizontal when workers traverse uneven surfaces, thus improving worker comfort.

[0063] Furthermore, the movable component includes a second telescopic member 42, which extends horizontally. The second telescopic member 42 has a second connecting section 421 and a second movable section 422 disposed opposite to each other. The second connecting section 421 is connected to a first movable section 412, and the second movable section 422 is movable horizontally relative to the second connecting section 421, allowing the waist fixing part 10 to move horizontally. The first movable section 412 and the second telescopic member 42 cooperate to form a movable end. This arrangement allows workers to move freely on the horizontal plane within the fall protection frame 31, further improving the flexibility of the fall protection component.

[0064] In this design, both the connecting section and the moving section of the first telescopic member 41 and the second telescopic member 42 are telescopically connected by cooperating with the elastic member 43. In the first telescopic member 41, the elastic member 43 is sleeved on the outer periphery of a portion of the first moving section 412, with one end of the elastic member 43 connected to the first connecting section 411 and the other end connected to the first moving section 412. In the second telescopic member 42, the elastic member 43 is sleeved inside a portion of the second moving section 422, with one end of the elastic member 43 connected to the second connecting section 421 and the other end connected to the second moving section 422.

[0065] Specifically, the speed-limiting wheel assembly 32 also includes a protective shell 50, which is located below the anti-fall frame 31. The roller 321 is rotatably mounted at the end of the protective shell 50. The speed-limiting component includes a slide rod 61, a first spring 62, and an abutment structure. The slide rod 61 extends vertically, with one end connected to the anti-fall frame 31 and the other end movably inserted into the protective shell 50. The first spring 62 is sleeved on the outer periphery of the slide rod 61, with one end connected to the anti-fall frame 31 and the other end connected to the protective shell 50. The abutment structure is fitted with a protective shell 50. The abutment structure has a driving end and abutment end. The driving end is connected to the end of the slide bar 61 furthest from the anti-fall frame 31. The driving end and slide bar 61 move synchronously. The driving end and abutment end are driven together. The abutment end is used to abut against the roller 321. The abutment structure has a relatively set abutment position and a avoidance position. When the abutment structure is in the abutment position, the driving end increases the friction between the abutment end and the roller 321 to adjust the rotation speed of the roller 321. When the abutment structure is in the avoidance position, it avoids the roller 321. This structure allows the sliding bar 61 to move by pressing down the movable component when the worker suddenly loses balance, thereby driving the abutment structure to adjust the rotation speed of the roller 321. Through the above-mentioned linkage, the speed limiting component can respond quickly, effectively slowing down the movement speed of the device and improving its safety.

[0066] like Figure 4 and Figure 5 As shown, the abutment structure includes a transmission frame 71, an abutment block 72, and an abutment groove 73. The transmission frame 71 is housed within the protective shell 50, with one end connected to the end of the slide rod 61 away from the anti-fall frame 31, forming the driving end. The abutment groove 73 is circumferentially arranged along the side of the roller 321 facing the transmission frame 71. The abutment block 72 is located within the abutment groove 73 and is drivenly connected to the transmission frame 71. The transmission frame 71 can drive the abutment block 72 to move to the abutment position, where it engages with the abutment groove 73. The combination of the abutment block 72 and the abutment groove 73 results in a simple structure with a small footprint, facilitating assembly and disassembly.

[0067] Specifically, in this embodiment, the transmission frame 71 is provided with a sliding groove 711, and the abutment structure also includes a connecting rod and a second spring 74. The second spring 74 is sleeved on the outer periphery of the connecting rod, one end of the spring is connected to the transmission frame 71, and the other end of the spring is connected to the abutment block 72. One end of the transmission frame 71 is drivenly connected to the sliding rod 61. When the sliding rod 61 descends, it will press down on the end of the transmission frame 71 close to the sliding rod 61, thereby causing the other end of the transmission frame 71 to rise. The end of the transmission frame 71 away from the sliding rod 61 is provided with a cavity. A piston is provided inside the protective shell 50. Part of the piston is located in the cavity and forms a sealed cavity with the bottom and side wall of the cavity. When the end of the transmission frame 71 away from the sliding rod 61 rises, the piston will squeeze the sealed cavity, causing the gas inside to be ejected from the sliding groove, thereby pushing the connecting rod away from the transmission frame 71 to drive the abutment block 72 to abut against the abutment groove 73, so that the abutment block 72 moves to the abutment position.

[0068] Furthermore, the wearable component 24 includes an arc-shaped plate 241 and an adjustment strap 242. The arc-shaped plate 241 is fixed to the walking unit 21 and conforms to part of the worker's leg. The adjustment strap 242 is looped around the outer periphery of the arc-shaped plate 241, and the adjustment strap 242 and the arc-shaped plate 241 cooperate to fit around the outer periphery of the worker's leg. The radial dimension of the adjustment strap 242 is adjustable. One end of the adjustment strap 242 has multiple sequentially spaced adjustment holes, and the other end of the adjustment strap 242 has an elastic protrusion facing the adjustment holes. The elastic protrusion is correspondingly positioned to the adjustment holes and engages with them to adjust the radial dimension of the adjustment strap 242. This adjustable wearable component can accommodate workers of different body types, improving the applicability and comfort of the device. The device effectively provides leg support, reduces fatigue, and enhances the assistive effect of the walking unit 21.

[0069] The walking unit 21 includes a thigh support 211 and a calf support 212. The thigh support 211 has a third connecting segment 2111 and a third moving segment 2112 disposed opposite to each other. The third connecting segment 2111 is hinged to the waist fixing part 10, and the third moving segment 2112 is movable relative to the third connecting segment 2111 along the extending direction of the thigh support 211. The calf support 212 has a fourth connecting segment 2121 and a fourth moving segment 2122 disposed opposite to each other. The fourth moving segment 2122 is movable relative to the fourth connecting segment 2121 along the extending direction of the calf support 212. The fourth connecting segment 2121 is hinged to the third moving segment 2112, and the fourth moving segment 2122 is hinged to the pedal 22. Wearing components 24 are provided on both the thigh support 211 and the calf support 212. The above-mentioned configuration allows the walking unit 21 to adapt to workers with different leg lengths, providing assistance and support to the worker's thighs and calves at the same time, further reducing the burden on the legs, improving work efficiency, and also providing protection in case of accidental falls to prevent secondary injuries.

[0070] like Figure 5 As shown, a sleeve 51 and a rotating shaft 52 are also provided between the protective shell 50 and the slide rod 61. The sleeve 51 and the rotating shaft 52 are sequentially sleeved on the outer periphery of the slide rod 61 in the vertical direction. One end of the sleeve 51 is connected to the end of the first spring 62, and one end of the rotating shaft 52 is rotatably disposed inside the sleeve 51. The other end of the rotating shaft 52 is connected to the protective shell 50. This allows the protective shell 50 to rotate relative to the slide rod 61, thereby allowing the roller 321 to rotate relative to the slide rod 61, improving the flexibility of the roller 321's rotation, and thus improving the flexibility of the walking assistance device's movement.

[0071] like Figure 3 As shown, the walking assistance device also includes a connector 80, which is disposed between the movable component and the waist fixing part 10. The second connecting section 421 is hinged to the first moving section 412, and the second moving section 422 is hinged to the connector 80. The walking assistance device has multiple movable components and multiple connectors 80, with each connector 80 corresponding to one of the movable components. The movable components are spaced apart on the outer periphery of the waist fixing part 10. The connector 80 makes the connection between the waist fixing part 10 and the walking mechanism more stable, while also increasing the range of motion of the worker within the fall protection frame 31, thus improving the worker's flexibility in work and walking.

[0072] The connector 80 is also equipped with a handle 81, which makes it convenient for staff to hold on when they want to rest or are exhausted.

[0073] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0074] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0075] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0076] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0077] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A walking assistance device, characterized in that, The walking assistance device includes: Waist fixing part (10) is used to be fitted around the waist of the worker; The walking mechanism is movably disposed below the waist fixing part (10) in a vertical direction. The walking mechanism has a walking part (21) and a pedal (22) arranged in sequence. The walking part (21) is movably connected to the waist fixing part (10). The pedal (22) is hinged to the walking part (21). The pedal (22) is sleeved on the outer periphery of the worker's feet. The walking mechanism has two sets, and the two sets of the walking mechanism are arranged side by side on the waist fixing part (10). The walking mechanism also includes a wearing component (24) and a driving component (23). The driving component (23) is drivenly connected to the walking part (21) to drive the walking part (21) to rotate relative to the waist fixing part (10). The wearing component (24) is disposed on the walking part (21) and is sleeved on the outer periphery of the worker's legs. The anti-fall component includes an anti-fall frame (31) and a speed-limiting wheel assembly (32). The projections of the waist fixing part (10) and the walking mechanism on the ground in the vertical direction are located within the projection of the anti-fall frame (31) in the vertical direction. The waist fixing part (10) is movably connected to the anti-fall frame (31). The walking mechanism passes through the anti-fall frame (31) in the vertical direction. The speed-limiting wheel assembly (32) includes multiple rollers (321) and multiple speed-limiting components. The multiple rollers (321) are movably arranged below the anti-fall frame (31) to drive the anti-fall frame (31) to move on the horizontal plane. The speed-limiting components are located between the anti-fall frame (31) and the rollers (321). The speed-limiting components are used to limit the rolling speed of the rollers (321). The multiple speed-limiting components are arranged one-to-one with the multiple rollers (321).

2. The walking assistance device according to claim 1, characterized in that, The anti-fall component also includes a movable component, which is vertically disposed on the anti-fall frame (31) and located between the anti-fall frame (31) and the waist fixing part (10); The movable component has a fixed end and a movable end arranged opposite each other in the vertical direction. The fixed end is connected to the anti-fall frame (31), and the movable end is movably connected to the waist fixing part (10).

3. The walking assistance device according to claim 2, characterized in that, The active component includes a first telescopic member (41) that extends vertically. The first telescopic member (41) has a first connecting section (411) and a first moving section (412) disposed opposite to each other. The first connecting section (411) is connected to the anti-fall frame (31). The first moving section (412) is movable vertically relative to the first connecting section (411) so that the waist fixing part (10) can move vertically. The first connecting section (411) forms the fixing end.

4. The walking assistance device according to claim 3, characterized in that, The movable component includes a second telescopic member (42) that extends horizontally. The second telescopic member (42) has a second connecting section (421) and a second moving section (422) disposed opposite to each other. The second connecting section (421) is connected to the first moving section (412). The second moving section (422) is movable horizontally relative to the second connecting section (421) so that the waist fixing part (10) can move horizontally. The first moving section (412) and the second telescopic member (42) cooperate with each other to form the movable end.

5. The walking assistance device according to claim 1, characterized in that, The speed-limiting wheel assembly (32) further includes a protective shell (50), which is disposed below the anti-fall frame (31). The roller (321) is rotatably disposed at the end of the protective shell (50). The speed-limiting component includes: A sliding rod (61) and a first spring (62) are provided. The sliding rod (61) extends vertically. One end of the sliding rod (61) is connected to the anti-fall frame (31), and the other end of the sliding rod (61) is movably inserted into the protective shell (50). The first spring (62) is sleeved on the outer periphery of the sliding rod (61). One end of the first spring (62) is connected to the anti-fall frame (31), and the other end of the first spring (62) is connected to the protective shell (50). The abutting structure is provided with the protective shell (50). The abutting structure has a driving end and an abutting end. The driving end is connected to the end of the slide rod (61) away from the anti-fall frame (31). The driving end moves synchronously with the slide rod (61). The driving end is drivenly connected to the abutting end. The abutting end is used to abut against the roller (321). The abutting structure has abutting position and avoidance position that are set opposite to each other. When the abutting structure is in the abutting position, the driving end can increase the friction between the abutting end and the roller (321) to adjust the rotation speed of the roller (321). When the abutting structure is in the avoidance position, the abutting structure avoids the roller (321).

6. The walking assistance device according to claim 5, characterized in that, The abutment structure includes: A transmission frame (71) is disposed inside the protective shell (50). One end of the transmission frame (71) is connected to the end of the slide rod (61) away from the anti-fall frame (31). The transmission frame (71) forms the driving end. The abutting block (72) and the abutting groove (73) are arranged in a ring around the circumference of the roller (321) on the side of the roller (321) facing the transmission frame (71). The abutting block (72) is located in the abutting groove (73). The abutting block (72) is driven to be connected to the transmission frame (71). The transmission frame (71) can drive the abutting block (72) to move to the abutting position and cooperate with the abutting groove (73) to abut.

7. The walking assistance device according to claim 1, characterized in that, The wearable component (24) includes: An arc-shaped plate (241) is fixed on the walking part (21), and the arc-shaped plate (241) is in contact with part of the worker's legs; An adjusting band (242) is annularly sleeved on the outer periphery of the arc-shaped plate (241). The adjusting band (242) and the arc-shaped plate (241) cooperate with each other to be sleeved on the outer periphery of the worker's leg. The radial dimension of the adjusting band (242) is adjustable. One end of the adjusting band (242) has a plurality of sequentially spaced adjusting holes. The other end of the adjusting band (242) is provided with an elastic protrusion on the side facing the adjusting hole. The elastic protrusion is correspondingly arranged with the adjusting hole and engages with the adjusting hole to adjust the radial dimension of the adjusting band (242).

8. The walking assistance device according to claim 7, characterized in that, The walking unit (21) includes: The thigh support (211) has a third connecting section (2111) and a third moving section (2112) disposed opposite to each other. The third connecting section (2111) is hinged to the waist fixing part (10), and the third moving section (2112) is movable relative to the third connecting section (2111) along the extending direction of the thigh support (211). The calf support (212) has a fourth connecting segment (2121) and a fourth moving segment (2122) arranged opposite to each other. The fourth moving segment (2122) is movable relative to the fourth connecting segment (2121) along the extension direction of the calf support (212). The fourth connecting segment (2121) is hinged to the third moving segment (2112), and the fourth moving segment (2122) is hinged to the pedal (22). The wearable component (24) is provided on both the thigh support (211) and the calf support (212).

9. The walking assistance device according to claim 5, characterized in that, The protective shell (50) and the slide rod (61) are further provided with a sleeve (51) and a rotating shaft (52). The sleeve (51) and the rotating shaft (52) are sequentially sleeved on the outer periphery of the slide rod (61) in the vertical direction. One end of the sleeve (51) is connected to the end of the first spring (62). One end of the rotating shaft (52) is rotatably disposed inside the sleeve (51). The other end of the rotating shaft (52) is connected to the protective shell (50).

10. The walking assistance device according to claim 4, characterized in that, The walking assistance device further includes a connector (80), which is disposed between the movable component and the waist fixing part (10). The second connecting segment (421) is hinged to the first moving segment (412), and the second moving segment (422) is hinged to the connector (80). The walking assistance device has multiple movable components and multiple connectors (80). The multiple connectors (80) are arranged one-to-one with the multiple movable components. The multiple movable components are spaced apart on the outer periphery of the waist fixing part (10).

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