Hip width adjustment device

Abstract

The present application discloses a hip width adjustment device, wherein the hip width adjustment device includes a device main body, a guide rail, a width adjustment mechanism, a left hip connection assembly and a right hip connection assembly. The guide rail is installed on the device main body. The left hip connection assembly and the right hip connection assembly respectively have a left clamping portion and a right clamping portion. The left hip connection assembly and the right hip connection assembly are slidably installed on the guide rail. A predetermined distance is formed between the left clamping portion and the right clamping portion. The left hip connection assembly and the right hip connection assembly are synchronously drivably connected to the width adjustment mechanism so that the left hip connection assembly and the right hip connection assembly slide towards or away from each other along the guide rail.

Description

Technical Field

[0001] The present invention relates to a rehabilitation training robot, and particularly to a hip width adjustment device. Background Art

[0002] Rehabilitation training robots, also known as lower limb robot gait training systems, can provide gait training modes that conform to human physiological characteristics. Through the coordinated control of the hip, knee, and ankle, they simulate the entire gait cycle process of normal people walking, intervene in rehabilitation training at an early stage, and accelerate the patient's walking rehabilitation process. The new weight-bearing support system enables full-process gait training with free pelvic swing in the early, middle, and late stages. The virtual gait scenario interaction system provides real-time biofeedback, improves the patient's psychological state, and optimizes the rehabilitation effect. The patient conducts gait training in a rich and colorful virtual walking training scenario, which improves the enthusiasm and active participation of the training.

[0003] During rehabilitation training, the training of the hip bone is also very important. However, for different users, the structure of the hip bone is different. Therefore, the existing rehabilitation training robots usually have a width adjustment mechanism that can adjust the width of their hips. For example, the patent with the publication number CN110465924A discloses a lower limb exoskeleton robot with a four-bar knee joint. The technical solution it adopts is mainly to adjust the width by adjusting the width adjustment screws on both sides, so that the width adjustment slider slides relative to the L-shaped steering slide plate, thereby realizing the width adjustment. This adjustment mechanism requires tightening and loosening screws, and even requires the assistance of tools. The adjustment efficiency is low, and it needs to be adjusted twice left and right, and cannot adjust both sides simultaneously. That is to say, this adjustment method is relatively cumbersome and affects the user experience.

[0004] Another example is the patent with the publication number CN104440884A, which discloses a hip length adjustable and labor-saving device for a human lower limb exoskeleton robot. The disclosed adjustment device is composed of an inner retaining piece, a shaft, and an outer baffle. The inner retaining piece is respectively movably connected to the inner ends of the left and right hip arc support structures through the shaft. The outer baffle is strip-shaped, and its two ends are respectively connected to the inner retaining piece chutes on the left and right and fixed and limited by the shaft in cooperation with the second strip-shaped adjustment hole on the outer baffle for the positions of the inner retaining piece and the outer baffle relative to each other. Similarly, this adjustment mechanism requires the assistance of tools to adjust the hip width and also needs to be adjusted twice left and right, which is relatively cumbersome.

[0005] For example, the patent with the patent authorization announcement number CN206007541U discloses a bionic hip joint adjustment mechanism. The adjustment part includes a fixed frame, a guide rail installed on the fixed frame, and a slider sleeved on the guide rail and capable of sliding along the guide rail. A locking member is fixed on the slider, and a locking wrench for tightening the locking member is installed at the end of the locking member. By tightening the wrench, the movement of the frame is restricted. The driving locking member of the tightening wrench has a relatively long lever arm and is relatively labor-saving.

[0006] When adjusting the hip width with such an adjustment mechanism, it is impossible to quickly and accurately make an adjustment section, and multiple calibrations are required. Moreover, left and right adjustments need to be made separately, which affects the user experience.

[0007] In addition, after the adjustment mechanism for the hip in the prior art completes the adjustment, it cannot automatically achieve width calibration. That is to say, after the adjustment mechanism completes the adjustment, it cannot automatically limit the width of the hip to the adjusted amplitude. In this way, it is very easy to cause a slight change in the width formed by the hip when subsequently limiting the width of the hip, which will inevitably affect the users undergoing rehabilitation training. Summary of the Invention

[0008] An object of the present invention is to provide a hip width adjustment device, wherein the hip width adjustment device forms two clamping parts connected to the user's hips, and a predetermined width is formed between the two clamping parts for accommodating the user's left hip and right hip. The hip width adjustment device is configured to be able to move towards or away from each other simultaneously, so that the width between the two clamping parts can be adjusted.

[0009] Another object of the present invention is to provide a hip width adjustment device, wherein after the hip width adjustment device completes the width adjustment, it can quickly achieve width calibration, thereby avoiding a slight change in the width between the two clamping parts and improving the user's rehabilitation training experience.

[0010] Another object of the present invention is to provide a hip width adjustment device, wherein the hip width adjustment device can automatically achieve width calibration to avoid a slight change in the width between the two clamping parts and affect the effect of the user's rehabilitation training.

[0011] Another object of the present invention is to provide a hip width adjustment device, wherein the hip width adjustment device can quantitatively adjust the width size formed between the two clamping parts to achieve targeted rehabilitation training for different users.

[0012] To achieve at least one of the above objects of the present invention, the present invention provides a hip width adjustment device, wherein the hip width adjustment device includes:

[0013] A device main body;

[0014] A guide rail, wherein the guide rail is mounted on the device main body;

[0015] A width adjustment mechanism;

[0016] A left hip connection assembly and a right hip connection assembly, wherein the left hip connection assembly and the right hip connection assembly respectively have a left clamping portion and a right clamping portion, wherein the left hip connection assembly and the right hip connection assembly are slidably mounted on the guide rail, wherein a distance of a predetermined size is formed between the left clamping portion and the right clamping portion, wherein the left hip connection assembly and the right hip connection assembly are synchronously drivably connected to the width adjustment mechanism so that the left hip connection assembly and the right hip connection assembly slide towards or away from each other along the guide rail.

[0017] According to an embodiment of the present invention, the width adjustment mechanism includes a gear, a left rack and a right rack. The left rack is fixed to the left hip connection assembly along the extending direction of the guide rail, the right rack is fixed to the right hip connection assembly along the extending direction of the guide rail, and the left rack and the right rack engage with the gear from the upper and lower sides of the gear. When the gear is driven to rotate, the left hip connection assembly and the right hip connection assembly slide towards or away from each other along the guide rail.

[0018] According to an embodiment of the present invention, the teeth of the left rack are integrally formed on the left hip connection assembly, and the teeth of the right rack are integrally formed on the right hip connection assembly.

[0019] According to an embodiment of the present invention, the left rack is detachably mounted on the left hip connection assembly, and the right rack is detachably mounted on the right hip connection assembly.

[0020] According to an embodiment of the present invention, the left hip connection assembly includes a left hip main body and a left slider, the left slider is slidably mounted on the guide rail, wherein the left slider is fixed to the left hip main body, the right hip connection assembly includes a right hip main body and a right slider, the right slider is slidably mounted on the guide rail, wherein the right slider is fixed to the right hip main body, and the left hip main body forms the left clamping portion and the right hip main body forms the right clamping portion.

[0021] According to an embodiment of the present invention, the hip width adjustment device includes a manual knob, wherein the manual knob is connected to the middle of the gear.

[0022] According to an embodiment of the present invention, the hip width adjustment device includes a mounting bracket and at least one bearing. The mounting bracket is fixed to the device body in a manner that covers the gear. A through hole is formed in the middle of the mounting bracket. One end of the manual knob passes through the through hole and is connected to the middle of the gear. The gear is sleeved in the through hole of the mounting bracket, and the bearing is installed between the gear and the mounting bracket.

[0023] According to an embodiment of the present invention, the manual knob is connected to the middle of the gear in a manner that can slide along the axial direction of the gear. The hip width adjustment device includes a limiting component, which includes a positioning bracket and a positioning structure. A through window is formed in the middle of the positioning bracket. After the manual knob is connected to the middle of the gear, it passes through the through window. The positioning bracket is fixed to the device body in a manner that covers the gear. After the manual knob is rotated a predetermined number of turns and slides along the axial direction of the gear away from the gear, the manual knob is fixed to the positioning bracket through the positioning structure. When the manual knob slides along the axial direction of the gear towards the gear, the positioning structure is unlocked to allow the manual knob to be rotated.

[0024] According to an embodiment of the present invention, the positioning structure includes a plurality of positioning holes located on the same first circumference and positioning protrusions located on another second circumference with the same diameter as the first circumference. The manual knob includes a knob body and a plug. The knob body is fixed to one end of the plug, and the other end of the plug is fixed to the gear. A limiting edge extends radially from the knob body of the manual knob, and the diameter of the limiting edge is greater than the diameter of the through window. The limiting edge is held between the gear and the positioning bracket. The positioning protrusion is provided on the limiting edge or the positioning bracket, and the positioning hole is provided on the positioning bracket or the limiting edge.

[0025] According to an embodiment of the present invention, the limiting component includes an elastic member, which is held between the manual knob and the gear in a compressed manner, so that the limiting edge of the manual knob tends to press against the positioning bracket.

[0026] Through the understanding of the subsequent description and the drawings, the further objects and advantages of the present invention will be fully reflected.

[0027] These and other objects, features, and advantages of the present invention are fully reflected by the following detailed description and the drawings. Brief Description of the Drawings

[0028] Figure 1A perspective view of the hip width adjustment device of the present invention in one state is shown.

[0029] Figure 2 A perspective view of the hip width adjustment device of the present invention in another state is shown.

[0030] Figure 3 A disassembled view of the hip width adjustment device of the present invention is shown.

[0031] Figure 4 A cross-sectional view of the hip width adjustment device of the present invention at an angle is shown.

[0032] Figure 5 A cross-sectional view of a part of the hip width adjustment device of the present invention at an angle is shown.

[0033] Figure 6 A cross-sectional view of another part of the hip width adjustment device of the present invention at an angle is shown.

[0034] Figure 7 A perspective view of the gear of the hip width adjustment device of the present invention is shown.

[0035] Figure 8 A perspective view of the manual knob of the hip width adjustment device of the present invention is shown.

[0036] Figure 9 A perspective view of the positioning bracket of the hip width adjustment device of the present invention is shown. Detailed implementation manners

[0037] The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present invention.

[0038] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It 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. Therefore, the above terms should not be construed as limitations on the present invention.

[0039] Combined with the specification appendix Figures 1 to 9, a hip width adjustment device according to a preferred embodiment of the present invention will be described in detail below, wherein the hip width adjustment device can be installed on a rehabilitation training robot to provide good hip rehabilitation training for users.

[0040] Reference Figures 1 to 3 , the hip width adjustment device includes a device main body 10, a left hip connection assembly 20, a right hip connection assembly 30, a guide rail 40 and a width adjustment mechanism 50.

[0041] The guide rail 40 is disposed on the device main body 10. The left hip connection assembly 20 and the right hip connection assembly 30 are slidably mounted on the guide rail 40. The left hip connection assembly 20 has a left clamping portion 201, wherein the right hip connection assembly 30 has a right clamping portion 301, and a predetermined distance is formed between the left clamping portion 201 and the right clamping portion 301 to be able to accommodate a user's hip with a predetermined width.

[0042] The left hip connection assembly 20 and the right hip connection assembly 30 are synchronously driven and connected to the width adjustment mechanism 50. When the left hip connection assembly 20 and the right hip connection assembly 30 are driven by the width adjustment mechanism 50, they slide synchronously towards or away from each other along the guide rail 40, so that the left clamping portion 201 of the left hip connection assembly 20 and the right clamping portion 301 of the right hip connection assembly 30 can move towards or away from each other simultaneously, and further the width formed between the left clamping portion 201 and the right clamping portion 301 can be quickly adjusted.

[0043] It can be understood that at least one difference between the technical solution of the present invention and the prior art adjustment structure is that the left hip connection assembly 20 and the right hip connection assembly 30 are slidably connected to the width adjustment mechanism 50 synchronously.

[0044] Reference Figures 3 to 9 , specifically, the width adjustment mechanism 50 includes a gear 51, a left rack 52 and a right rack 53. The left rack 52 is fixed to the left hip connection assembly 20 along the extending direction of the guide rail 40, so that the teeth of the left rack 52 are arranged along the direction of the guide rail 40. The right rack 53 is fixed to the right hip connection assembly 30 along the extending direction of the guide rail 40, so that the teeth of the left rack 52 are also arranged along the direction of the guide rail 40. The left rack 52 and the right rack 53 engage with the gear 51 from the upper and lower sides of the gear 51. In other words, the teeth on the left rack 52 and the teeth on the right rack 53 are arranged facing each other.

[0045] Thus, when the gear 51 is driven to rotate, the left rack 52 and the right rack 53 will be simultaneously gear-driven by the gear 51. Correspondingly, the left hip connection assembly 20 and the right hip connection assembly 30 will be respectively driven synchronously by the left rack 52 and the right rack 53 to slide along the guide rail 40 towards or away from each other.

[0046] It is worth mentioning that when the left hip connection assembly 20 and the right hip connection assembly 30 slide towards each other along the guide rail 40, the width formed between the left clamping portion 201 on the left hip connection assembly 20 and the right clamping portion 301 on the right hip connection assembly 30 will be reduced. Conversely, when the left hip connection assembly 20 and the right hip connection assembly 30 slide away from each other along the guide rail 40, the width formed between the left clamping portion 201 on the left hip connection assembly 20 and the right clamping portion 301 on the right hip connection assembly 30 will be increased.

[0047] In the above manner, the user can quickly and specifically adjust the width formed between the left clamping portion 201 and the right clamping portion 301 according to their own hip width.

[0048] In an embodiment of the present invention, the left rack 52 is a part of the left hip connection assembly 20, and the right rack 53 is a part of the right hip connection assembly 30. That is to say, the teeth on the left rack 52 are integrally formed on the left hip connection assembly 20, and the teeth on the right rack 53 are integrally formed on the right hip connection assembly 30.

[0049] In another embodiment of the present invention, the left rack 52 and the right rack 53 are respectively detachably fixed to the left hip connection assembly 20 and the right hip connection assembly 30, so as to facilitate replacement when the teeth on the left rack 52 and / or the right rack 53 are severely worn.

[0050] Preferably, the left hip connection assembly 20 includes a left hip main body 21 and a left slider 22. The left slider 22 is slidably mounted on the guide rail 40, and the left slider 22 is fixed to the left hip main body 21. The right hip connection assembly 30 includes a right hip main body 31 and a right slider 32. The right slider 32 is slidably mounted on the guide rail 40, and the right slider 32 is fixed to the right hip main body 31. The left hip main body 21 forms the left clamping portion 201. The right hip main body 31 forms the right clamping portion 301.

[0051] Further, the width adjustment device of the hip portion further includes a manual knob 60, wherein the manual knob 60 is connected to the gear 51, so that the user can rotate the manual knob 60 manually to rotate the gear 51. Thus, the width formed between the left clamping portion 201 and the right clamping portion 301 can be adjusted manually.

[0052] Reference Figure 7 , specifically, a clamping groove 5101 is provided in the middle of the gear 51, wherein the manual knob 60 has a clamping end portion 601, and the clamping end portion 601 is inserted into the clamping groove 5101 in a clampable manner, so that the manual knob 60 is connected to the gear 51.

[0053] The gear 51 has an engaging portion 511 and a connecting portion 512. The engaging portion 511 and the connecting portion 512 are integrally formed. The engaging portion 511 is engaged with the left rack 52 and the right rack 53. The connecting portion 512 forms the clamping groove 5101.

[0054] Furthermore, the width adjustment device of the hip portion includes at least one bearing 70 and a mounting bracket 80, wherein the mounting bracket 80 is provided to cover the gear 51 and is fixed to the device main body 10. A through hole 801 is formed in the middle of the mounting bracket 80, and the connecting portion 512 of the gear 51 is provided to pass through the through hole 801. The bearing 70 is provided between the connecting portion 512 and the mounting bracket 80 to reduce the frictional force between the connecting portion 512 and the mounting bracket 80 when the gear 51 rotates. Specifically, the gear 51 is sleeved in the through hole 801 of the mounting bracket 80.

[0055] Reference Figure 8 , the manual knob 60 includes a knob body 61 and a plug rod 62. The knob body 61 is fixed to one end of the plug rod 62, and the other end of the plug rod 62 is fixed to the gear 51. Specifically, the other end of the plug rod 62 forms the clamping end portion 601. After the clamping end portion 601 is provided to pass through the through hole 801, it is clamped to the clamping groove 5101.

[0056] Preferably, the width adjustment device of the hip portion includes a limiting component 90. After the manual knob 60 is rotated a predetermined number of turns, it can be limited by the limiting component 90, so that the width formed between the left clamping portion 201 and the right clamping portion 301 remains unchanged.

[0057] Reference Figure 3 and Figure 9, specifically, the limiting component 90 includes a positioning frame 91, a positioning structure 92, and an elastic member 93. A through window 9101 is provided in the middle of the positioning frame 91. The manual knob 60 is arranged to be axially slidably held between the positioning frame 91 and the gear 51. When the manual knob 60 slides axially, the knob body 61 of the manual knob 60 always passes through the through window 9101. The elastic member 93 is held between the manual knob 60 and the connecting portion 512 of the gear 51 in a compressed manner. It can be understood that the elastic member 93 is implemented as a helical spring.

[0058] The knob body 61 of the manual knob 60 extends radially to form a limiting edge 63. The diameter of the limiting edge 63 is larger than the diameter of the through window 9101, so that the limiting edge 63 is held between the positioning frame 91 and the gear 51.

[0059] The manual knob 60 can be positioned on the positioning frame 91 through the positioning structure 92. The positioning structure 92 includes a plurality of positioning holes 9201 located on the same first circumference and positioning protrusions 9202 located on another second circumference with the same diameter as the first circumference.

[0060] Specifically, in an embodiment of the present invention, the positioning holes 9201 are provided on the positioning frame 91. The positioning protrusions 9202 are provided on the limiting edge 63. In a variant embodiment of the present invention, the positioning holes 9201 are provided on the limiting edge 63. The positioning protrusions 9202 are provided on the positioning frame 91.

[0061] To enable those skilled in the art to understand the present invention, in at least one embodiment of the present invention, only the example where the positioning holes 9201 are provided on the positioning frame 91 and the positioning protrusions 9202 are provided on the limiting edge 63 is described.

[0062] With such a setting, when the user needs to adjust the manual knob 60, the user only needs to axially press the manual knob 60 to enable the manual knob 60 to slide axially, so that the positioning protrusion 9202 is separated from the positioning hole 9201, and then the manual knob 60 can be rotated. When the manual knob 60 is rotated by a predetermined angle so that the width formed between the left clamping portion 201 and the right clamping portion 301 can meet the user's own needs, the user can release the manual knob 60. Under the restoring force of the elastic member 93, the manual knob 60 automatically slides axially towards the positioning frame 91, and the manual knob 60 is automatically limited by the positioning structure 92, and then the manual knob 60 cannot be rotated, so that the width formed between the left clamping portion 201 and the right clamping portion 301 is automatically maintained in the adjusted state.

[0063] The number of the positioning protrusions 9202 and the positioning holes 9201 can be set as required. It is worth noting that since the width adjustment mechanism 50 in the present invention uses a gear transmission method for adjustment, the width formed between the left clamping portion 201 and the right clamping portion 301 can be quantitatively adjusted by controlling the number of turns of the gear rotation, which is convenient for different users. In other words, through the width adjustment mechanism 50 of the present invention, the user can adjust the width formed between the left clamping portion 201 and the right clamping portion 301 in sections.

[0064] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and described in the embodiments. Without departing from the principle, any deformation or modification of the embodiments of the present invention is possible.

Claims

1. Hip width adjustment device, characterized in that, The hip width adjustment device includes: A device body; A guide rail, which is installed on the device body; A width adjustment mechanism; the width adjustment mechanism includes a gear, a left rack, and a right rack; A left hip connection assembly and a right hip connection assembly, wherein the left hip connection assembly and the right hip connection assembly respectively have a left clamping portion and a right clamping portion, wherein the left hip connection assembly and the right hip connection assembly are slidably installed on the guide rail, wherein a predetermined distance is formed between the left clamping portion and the right clamping portion, wherein the left hip connection assembly and the right hip connection assembly are synchronously drivably connected to the width adjustment mechanism so that the left hip connection assembly and the right hip connection assembly slide towards or away from each other along the guide rail; The hip width adjustment device includes a manual knob, wherein the manual knob is snap-fitted to the middle of the gear; the manual knob is connected to the middle of the gear in a manner that can slide along the axial direction of the gear, wherein the hip width adjustment device includes a limiting component, wherein the limiting component includes a positioning frame and a positioning structure, wherein a through window is formed in the middle of the positioning frame, wherein the manual knob passes through the through window after being connected to the middle of the gear, wherein the positioning frame is fixed to the device body in a manner that covers the gear, wherein after the manual knob is rotated a predetermined number of turns and slides in the axial direction of the gear away from the gear, the manual knob is fixed to the positioning frame by the positioning structure, wherein when the manual knob slides towards the gear in the axial direction of the gear, the positioning structure is unlocked to allow the manual knob to be rotated; The positioning structure includes a plurality of positioning holes located on the same first circumference and positioning protrusions located on another second circumference having the same diameter as the first circumference, wherein the manual knob includes a knob body and a plug, the knob body is fixed to one end of the plug, wherein the other end of the plug is fixed to the gear, the knob body of the manual knob extends radially to form a limiting edge, the diameter of the limiting edge is greater than the diameter of the through window, wherein the limiting edge is held between the gear and the positioning frame, wherein the positioning protrusions are provided on the limiting edge or the positioning frame, and the positioning holes are provided on the positioning frame or the limiting edge; The limiting component includes an elastic member, wherein the elastic member is held between the manual knob and the gear in a compressed manner so that the limiting edge of the manual knob tends to press against the positioning frame.

2. The hip width adjustment device according to claim 1, characterized in that, The left rack is fixed to the left hip connection assembly along the extending direction of the guide rail, the right rack is fixed to the right hip connection assembly along the extending direction of the guide rail, the left rack and the right rack engage with the gear from the upper and lower sides of the gear, wherein when the gear is driven to rotate, the left hip connection assembly and the right hip connection assembly slide towards or away from each other along the guide rail.

3. The hip width adjustment device according to claim 2, characterized in that, The teeth of the left rack are integrally formed on the left hip joint assembly, and the teeth of the right rack are integrally formed on the right hip joint assembly.

4. The hip width adjustment device according to claim 2, wherein The left rack is detachably mounted on the left hip joint assembly, and the right rack is detachably mounted on the right hip joint assembly.

5. The hip width adjustment device according to claim 1 or 4, characterized in that, The left hip joint assembly includes a left hip main body and a left slider, the left slider is slidably mounted on the guide rail, wherein the left slider is fixed to the left hip main body, the right hip joint assembly includes a right hip main body and a right slider, the right slider is slidably mounted on the guide rail, wherein the right slider is fixed to the right hip main body, the left hip main body forms the left clamping portion, and the right hip main body forms the right clamping portion.

6. The hip width adjustment device according to claim 5, characterized in that, The width adjustment device of the hip portion includes a mounting bracket and at least one bearing, wherein the mounting bracket is fixed to the device main body in a manner of covering the gear, wherein a through hole is formed in the middle of the mounting bracket, wherein one end of the manual knob passes through the through hole and is connected to the middle of the gear, wherein the gear is sleeved in the through hole of the mounting bracket, and wherein the bearing is mounted between the gear and the mounting bracket.

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