Double screw rod nut calf and ankle muscle pulling mechanism

Abstract

The utility model discloses a kind of double screw rod nut shank, ankle muscle pulling mechanism, including fixed frame, the shank frame of small translation of opposite fixed frame and the foot frame of opposite fixed frame rotation, small shank screw rod nut assembly for promoting shank frame translation opposite fixed frame is set between fixed frame and shank frame, ankle screw rod nut assembly for promoting foot frame rotation opposite fixed frame is set between fixed frame and foot frame, ankle screw rod nut assembly includes motor reduction screw rod unit, be set on the screw rod positioning block of fixed frame, screw rod nut is sleeved on screw rod and two ends are respectively hinged in screw rod nut and foot frame's swing bar.The utility model structure design is reasonable, can realize the muscle pulling massage of shank and ankle, and through back and forth switching foot frame is in tensile state and muscle pulling state, can realize the rotation activity at ankle, the massage function diversification of foot, can effectively alleviate the fatigue of user foot, bring more comfortable and healthy massage experience for user.

Description

Technical Field

[0001] This utility model relates to the field of massage device technology, and more specifically, to a double screw nut calf and ankle tendon-pulling mechanism. Background Technology

[0002] In the existing technology, massage products for the calves only have conventional massage functions, including foot kneading and leg muscle massage. As consumers have increasingly higher functional requirements for calf massage, the existing conventional functions can no longer meet the user experience needs of consumers.

[0003] In daily work and life, prolonged sitting keeps muscles in a static state while fascia remains contracted, which can lead to muscle pain over time. Furthermore, it is widely believed in the massage industry that stretching can significantly alleviate fatigue and soreness, and improve a person's sub-health condition. Therefore, massage devices with stretching functions for the calves and ankles became the focus of our design. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art. Its structure is reasonably designed and can realize tendon-stretching massage of the calf and ankle. By switching the foot frame back and forth between the stretching and tendon-stretching states, it can realize the rotational movement of the ankle. The massage function of the foot is diversified, which can effectively relieve the user's foot fatigue and bring the user a more comfortable and healthy massage experience.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A double-screw nut calf and ankle tendon-pulling mechanism includes a fixed frame, a calf frame that translates relative to the fixed frame, and a foot frame that rotates relative to the fixed frame. A calf screw nut assembly that causes the calf frame to translate relative to the fixed frame is provided between the fixed frame and the calf frame. An ankle screw nut assembly that causes the foot frame to rotate relative to the fixed frame is provided between the fixed frame and the foot frame. The ankle screw nut assembly includes a motor reduction screw unit, a screw positioning block provided on the fixed frame, a screw nut sleeved on the screw, and a swing rod with its two ends respectively hinged to the screw nut and the foot frame.

[0006] By adopting the above technical solution, when in use, the human feet are placed on the foot frame and the lower legs are placed on the lower leg frame. The lower leg frame is equipped with a calf massage device to knead or tap the calf. By driving the lower leg screw nut assembly to move the lower leg frame relative to the fixed frame, the lower leg can be stretched and the massage intensity of the calf can be increased. The foot frame can rotate relative to the fixed frame by driving the ankle screw nut assembly. The foot frame has an initial state, a stretching state, and a tensile state. When the foot frame rotates inward relative to the fixed frame, it is in the stretching state, which can further stretch the lower leg. When the foot frame rotates outward relative to the fixed frame, it is in the tensile state, which can stretch the ankle. Furthermore, switching between the above three states can also allow the ankle to move back and forth, helping people with limited ankle mobility to move their ankles. Combined with the back and forth translation of the lower leg frame relative to the foot frame, the stretching effect on the lower leg and ankle is even better.

[0007] Preferably, a detection sensor is provided on the foot frame at the rotatable connection between the foot frame and the fixed frame, and a detection component is provided on the fixed frame at a position corresponding to the detection sensor. When the foot frame rotates relative to the fixed frame, the detection sensor detects different positions of the detection component, thereby controlling the motor reduction screw unit to stop operating. Specifically, the detection sensor is set as a grating position detection component, and the detection component is set as an ankle position detection plate. The ankle position detection plate is provided with a middle notch, a front notch near the foot frame, and a rear notch near the fixed frame, so that when the foot frame rotates relative to the fixed frame and the grating position detection component is located at the middle notch, the front notch, and the rear notch, respectively, the foot frame is in the initial state, the tensioned state, and the stretched state, respectively.

[0008] By adopting the above technical solution, the detection sensor and the detected component can also adopt the structure of Hall sensors and magnets, as long as the rotation limit of the foot frame can be achieved. In this specific embodiment, a scheme using a grating position detection component and an ankle position detection plate is used. When the grating position detection component is located at the middle notch of the ankle position detection plate, the foot frame is in the initial state. As the foot frame rotates inward relative to the fixed frame, when the grating position detection component is located at the front notch of the ankle position detection plate, the foot frame is in the tensioned state. As the foot frame rotates outward relative to the fixed frame, when the grating position detection component is located at the rear notch of the ankle position detection plate, the foot frame is in the stretched state. In the initial state, the angle between the foot frame and the fixed frame is 95 degrees.

[0009] Preferably, the lower leg lead screw nut assembly includes a motor reduction lead screw unit and a nut mounting block sleeved on the lead screw and fixed to the lower leg frame. The motor reduction lead screw unit includes a motor, a reduction structure driven by the motor, and a lead screw driven by the reduction structure.

[0010] By adopting the above technical solution, the nut mounting block can be slid on the screw by driving the motor reduction screw unit, thereby realizing the translation of the lower leg frame relative to the fixed frame. The motor reduction screw unit has a simple structure and smooth transmission.

[0011] Preferably, the rocker arm is Y-shaped, and its two open ends are respectively hinged to the two sides of the lead screw nut.

[0012] By adopting the above technical solution, the hinge between the swing arm and the lead screw nut is made more secure, resulting in a more stable rotation effect of the foot frame. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the initial state of the foot frame in a specific embodiment of the present invention; Figure 2 This is an exploded view of a specific embodiment of the present invention, showing the ankle screw and nut assembly; Figure 3 This is a schematic diagram illustrating the structure of the ankle position detection plate according to a specific embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the optical grating position detection component of the present invention in a specific embodiment; Figure 5 This is a side view of a specific embodiment of the present invention showing the foot frame in its initial state; Figure 6 This is a schematic diagram illustrating the structure of the foot frame in a tensioned state according to a specific embodiment of this utility model; Figure 7 This is a side view showing the foot frame in a stretched state according to a specific embodiment of the present invention; Figure 8 This is a schematic diagram illustrating the structure of the foot frame in a stretched state according to a specific embodiment of the present invention; Figure 9 This is a side view of a specific embodiment of the present invention, showing the foot frame in a stretched state.

[0014] In the diagram: 1. Fixing frame; 2. Lower leg support; 3. Foot support; 4. Lower leg screw and nut assembly; 41. Nut mounting block; 5. Ankle screw and nut assembly; 51. Screw positioning block; 52. Screw nut; 53. Swing rod; 6. Motor reduction screw unit; 61. Motor; 62. Reduction structure; 63. Screw; 7. Grating position detection assembly; 8. Ankle position detection plate; 81. Middle notch; 82. Front notch; 83. Rear notch; 9. Calf massage device. Detailed Implementation

[0015] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-9 As shown, a double screw nut calf and ankle tendon-pulling mechanism includes a fixed frame 1, a calf frame 2 that translates relative to the fixed frame 1, and a foot frame 3 that rotates relative to the fixed frame 1. A calf screw nut assembly 4 is provided between the fixed frame 1 and the calf frame 2 to facilitate the translation of the calf frame 2 relative to the fixed frame 1. An ankle screw nut assembly 5 is provided between the fixed frame 1 and the foot frame 3 to facilitate the rotation of the foot frame 3 relative to the fixed frame 1. The ankle screw nut assembly 5 includes a motor reduction screw unit 6, a screw positioning block 51 provided on the fixed frame 1, a screw nut 52 sleeved on the screw 63, and a swing rod 53 with both ends hinged to the screw nut 52 and the foot frame 3, respectively.

[0017] By adopting the above technical solution, when in use, the human foot is placed on the foot frame 3, and the lower leg is placed on the lower leg frame 2. The lower leg frame 2 is equipped with a calf massage device 9 to knead or tap the calf. By driving the lower leg screw nut assembly 4 to move the lower leg frame 2 relative to the fixed frame 1, the lower leg can be stretched and the massage intensity of the calf can be increased. The ankle screw nut assembly 5 drives the foot frame 3 to rotate relative to the fixed frame 1. The foot frame 3 has an initial state, a stretching state, and a stretched state. When the foot frame 3 rotates inward relative to the fixed frame 1, it is in the stretching state, which can further stretch the lower leg. When the foot frame 3 rotates outward relative to the fixed frame 1, it is in the stretched state, which can stretch the ankle. The switching between the above three states can also make the ankle move back and forth, helping people with limited ankle mobility to move their ankles. Combined with the back and forth translation of the lower leg frame 2 relative to the foot frame 3, the stretching effect on the lower leg and ankle is even better.

[0018] A detection sensor is installed on the foot frame 3 at the rotatable connection between the foot frame 3 and the fixed frame 1. A detection element is installed on the fixed frame 1 at a position corresponding to the detection sensor. When the foot frame 3 rotates relative to the fixed frame 1, the detection sensor detects different positions of the detection element, thereby controlling the motor reduction screw unit 6 to stop operating. Specifically, the detection sensor is set as a grating position detection component 7, and the detection element is set as an ankle position detection plate 8. The ankle position detection plate 8 is provided with a middle notch 81, a front notch 82 near the foot frame 3, and a rear notch 83 near the fixed frame 1. When the foot frame 3 rotates relative to the fixed frame 1, and the grating position detection component 7 is located at the middle notch 81, the front notch 82, and the rear notch 83 respectively, the foot frame 3 is in the initial state, the tensioned state, and the stretched state respectively. The detection sensor and the detection element can also adopt a Hall sensor and a magnet structure, as long as the rotation limit of the foot frame 3 can be achieved. In this specific embodiment, a scheme using a grating position detection component 7 and an ankle position detection plate 8 is employed. When the grating position detection component 7 is located at the middle notch 81 of the ankle position detection plate 8, the foot frame 3 is in its initial state. As the foot frame 3 rotates inward relative to the fixed frame 1, when the grating position detection component 7 is located at the front notch 82 of the ankle position detection plate 8, the foot frame 3 is in a stretched state. As the foot frame 3 rotates outward relative to the fixed frame 1, when the grating position detection component 7 is located at the rear notch 83 of the ankle position detection plate 8, the foot frame 3 is in a stretched state. In the initial state, the angle between the foot frame 3 and the fixed frame 1 is 95 degrees.

[0019] Furthermore, the lower leg screw nut assembly 4 includes a motor reduction screw unit 6 and a nut mounting block 41 sleeved on the screw 63 and fixed to the lower leg frame 2. The motor reduction screw unit 6 includes a motor 61, a reduction structure 62 driven by the motor 61, and a screw 63 driven by the reduction structure 62. By driving the nut mounting block 41 to slide on the screw 63 through the motor reduction screw unit 6, the translation of the lower leg frame 2 relative to the fixed frame 1 can be realized. The structure of the motor reduction screw unit 6 is simple and the transmission is smooth.

[0020] Furthermore, the swing arm 53 is Y-shaped, and its two open ends are respectively hinged to the two sides of the lead screw nut 52. This arrangement makes the hinge between the swing arm 53 and the lead screw nut 52 more secure, achieving a more stable rotation effect for the foot frame 3.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-screw nut calf and ankle tendon-pulling mechanism, comprising a fixed frame (1), a calf frame (2) that translates relative to the fixed frame (1), and a foot frame (3) that rotates relative to the fixed frame (1), characterized in that, A calf screw nut assembly (4) is provided between the fixed frame (1) and the calf frame (2) to cause the calf frame (2) to translate relative to the fixed frame (1). An ankle screw nut assembly (5) is provided between the fixed frame (1) and the foot frame (3) to cause the foot frame (3) to rotate relative to the fixed frame (1). The ankle screw nut assembly (5) includes a motor reduction screw unit (6), a screw positioning block (51) provided on the fixed frame (1), a screw nut (52) sleeved on the screw (63), and a swing rod (53) with both ends hinged to the screw nut (52) and the foot frame (3) respectively.

2. The double-screw nut calf and ankle tendon-pulling mechanism according to claim 1, characterized in that, A detection sensor is provided on the foot frame (3) at the rotatable connection between the foot frame (3) and the fixed frame (1). The object to be detected is provided on the fixed frame (1) at the position corresponding to the detection sensor. The foot frame (3) rotates relative to the fixed frame (1), and the detection sensor detects different positions of the object to be detected, thereby controlling the motor reduction screw unit (6) to stop operating.

3. The double-screw nut calf and ankle tendon-pulling mechanism according to claim 2, characterized in that, The detection sensor is set as a grating position detection component (7), and the detected component is set as an ankle position detection plate (8). The ankle position detection plate (8) is provided with a middle notch (81), a front notch (82) near the foot frame (3) and a rear notch (83) near the fixed frame (1). When the foot frame (3) rotates relative to the fixed frame (1) and the grating position detection component (7) is located at the middle notch (81), the front notch (82) and the rear notch (83) respectively, the foot frame (3) is in the initial state, the tensioned state and the stretched state respectively.

4. A double-screw nut calf and ankle tendon-pulling mechanism according to claim 1, 2, or 3, characterized in that, The lower leg screw nut assembly (4) includes a motor reduction screw unit (6) and a nut mounting block (41) sleeved on the screw (63) and fixed to the lower leg frame (2).

5. The double-screw nut calf and ankle tendon-pulling mechanism according to claim 4, characterized in that, The motor reduction screw unit (6) includes a motor (61), a reduction structure (62) driven by the motor (61), and a screw (63) driven by the reduction structure (62).

6. The double-screw nut calf and ankle tendon-pulling mechanism according to claim 1, characterized in that, The rocker arm (53) is Y-shaped, and its two open ends are respectively hinged to the two sides of the lead screw nut (52).

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