Lower limb rehabilitation standing posture shank trainer
By employing a linkage structure of movable rod, movable block, and spiral groove in the lower limb rehabilitation standing calf trainer, nonlinear changes in spring compression are achieved, solving the problem of constant load in existing technologies and improving training effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-24
AI Technical Summary
In existing lower limb rehabilitation standing calf trainers, the spring force and compression amount change linearly, resulting in a constant load during leg flexion and extension, leading to unsatisfactory training effects.
A load-bearing device was designed. Through the linkage structure of the movable rod, movable block and spiral groove, the compression of the spring no longer increases linearly. The rolling of the ball in the spiral groove drives the cylinder to rotate, so as to gradually increase the load. In conjunction with the rotation of the U-shaped frame and the rotating arm, the pressure on the shoulders and the load on the legs are gradually increased.
By gradually increasing the load on the legs from a bent-knee to a standing position, the training effect becomes more scientific and effective.
Smart Images
Figure CN224024163U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of rehabilitation training equipment relates to a lower limbs rehabilitation standing posture calf training device BACKGROUND
[0002] The standing posture calf training device for lower limb rehabilitation is a fitness equipment specially used for exercising calf muscles. The standing posture calf training device is usually designed for users to stand and use, and exercises calf muscles through specific mechanical structure. When using, the user stands on the equipment, places the foot pedal under the foot, and then exercises calf muscles through the flexion and extension action of the leg. This training device can help to enhance the strength and endurance of the calf, improve the leg lines, and is one of the commonly used equipment in fitness and shaping.
[0003] In addition, the standing posture calf training device usually has adjustable counterweight to adapt to the exercise needs and level of different users. When using, the user can select the appropriate weight according to his actual situation to ensure the exercise effect and safety. The existing adjustable counterweight usually cooperates with spring compression to apply pressure on the user's shoulder to increase the weight strength of the user's calf. Since the spring force and the compression amount are linearly changed when the existing spring force is used to apply weight pressure, the weight applied to the leg is also linearly changed. If the weight size is always the same when the user from squatting to standing, the training effect of the leg is not ideal. The weight should be gradually increased from the knee bending to standing. Gradually increasing the weight is a more scientific and effective method. Therefore, we provide a standing posture calf training device for lower limb rehabilitation to solve the above-mentioned problems. SUMMARY
[0004] 1. The technical problem to be solved:
[0005] The existing standing posture calf training device for lower limb rehabilitation usually cooperates with spring compression to apply pressure on the user's shoulder. If the flexion and extension of the leg are always the same when the user from squatting to standing, the training effect of the leg is not ideal.
[0006] 2. Technical scheme:
[0007] In order to solve the above problems, the utility model provides a kind of lower limb rehabilitation standing posture calf trainer, including base, the one end of base is equipped with vertical vertical beam, the other end of vertical beam is hingedly installed with rotating arm, the other end of rotating arm is connected U-shaped frame, L-shaped frame is arranged between base and vertical beam, L-shaped frame both ends are fixed with base and vertical beam respectively, hingedly installed with weight-bearing device on L-shaped frame, the other end of weight-bearing device is connected with rotating arm, the weight-bearing device includes weight-bearing device shell, movable rod is movably inserted in the inside of weight-bearing device shell, the top end of movable rod is hinged with rotating arm, and the bottom end is connected with first movable block movably clamped in the inside of weight-bearing device shell, the inside of weight-bearing device shell is also movably clamped with second movable block that is sleeved on the outer circumferential side of movable rod, spring is connected between second movable block and first movable block and is sleeved on the outer circumferential of movable rod, the inside top wall of weight-bearing device shell is equipped with cylinder, the cylinder is sleeved on movable rod, second movable block is fixedly connected with cylinder, the outer surface of movable rod is equipped with corresponding helical groove with the inner surface of cylinder, ball is embedded in helical groove, and the ball is movably clamped in two helical grooves and can roll along the track of helical groove.
[0008] The two sides of the U-shaped frame are respectively provided with a handle.
[0009] The outer circumferential wall of the handle is fixedly bonded with a soft rubber layer.
[0010] The two ends of the U-shaped frame are respectively provided with a sponge pad.
[0011] The other end of the base is provided with a foot pedal for standing support of the foot.
[0012] An internal thread groove with an outer diameter size matched with the cylinder is formed in the second movable block, an external thread is formed on the outer wall of the cylinder, and the second movable block is sleeved on the cylinder and threadedly connected with the cylinder.
[0013] The outer surface size of the first movable block and the second movable block is matched with the inner surface size of the weight-bearing device shell, and the first movable block and the second movable block are respectively slidably clamped in the inside of the weight-bearing device shell.
[0014] 3. Beneficial effects:
[0015] The utility model makes the weight of leg from knee to standing state gradually increase, makes calf training more scientific and effective, and training effect is better. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a first view angle structure schematic view of a lower limb rehabilitation standing posture calf trainer.
[0017] Figure 2 It is a second view angle structure schematic view of a lower limb rehabilitation standing posture calf trainer.
[0018] Figure 3 It is a partial cross-sectional structure schematic view of a lower limb rehabilitation standing posture calf trainer.
[0019] Figure 4 It is an internal structure schematic view of a weight-bearing device shell of a lower limb rehabilitation standing posture calf trainer.
[0020] Figure 5 It is an exploded structure schematic view of a lower limb rehabilitation standing posture calf trainer. Figure 4
[0021] Explanation of reference numerals: 1, base frame; 2, vertical beam; 3, rotating arm; 4, L-shaped frame; 5, foot pedal; 6, U-shaped frame; 7, handle; 8, sponge pad; 9, weight-bearing device shell; 10, movable rod; 11, first movable block; 12, cylinder; 13, ball; 14, helical groove; 15, second movable block; 16, spring. DETAILED DESCRIPTION
[0022] The utility model will be explained in detail below in combination with the drawings and examples.
[0023] As shown in Figure 1 and Figure 2 , a lower limb rehabilitation standing posture calf trainer comprises a base 1, one end of the base 1 is provided with a vertical vertical beam 2, the other end of the vertical beam 2 is hingedly installed with a rotating arm 3, the other end of the rotating arm 3 is connected with a U-shaped frame 6, an L-shaped frame 4 is arranged between the base frame 1 and the vertical beam 2, the two ends of the L-shaped frame 4 are fixed with the base frame 1 and the vertical beam 2 respectively, a weight-bearing device is hingedly installed on the L-shaped frame 4, the other end of the weight-bearing device is connected with the rotating arm 3, and the weight-bearing device is provided with a spring 16.
[0024] When in use, when the movable rod 10 moves upward or downward in the weight-bearing device shell 9, the second movable block 15 is driven to move downward or upward in the weight-bearing device shell 9 to compress or stretch the spring 16.
[0025] The user stands on the equipment, the body is in a half squat state, the U-shaped frame 6 is placed on the shoulders, the hands tightly hold the handles 7, then slowly stands up, the legs are stretched from the knee bending state to standing, the calf muscles are exercised through the knee bending and stretching actions, in the standing process, the shoulders are upwardly held to make the U-shaped frame 6 drive the rotating arm 3 to rotate, the rotating arm 3 rotates to drive the movable rod 10 to move in the weight-bearing device shell 9, thereby pulling the first movable block 11 to move upward to extrude the spring 16 to compress the spring 16, with the body gradually standing, the rotating angle of the rotating arm 3 is gradually increased, and the compression amount of the first movable block 11 to the spring 16 is gradually increased, thereby gradually increasing the drag force of the spring 16 to the rotating arm 3, gradually increasing the pressure of the U-shaped frame 6 to the user's shoulders, and gradually increasing the weight load to the user's legs, so that the muscle training of the legs is facilitated.
[0026] Since the spring elastic force is linearly changed with the compression amount when the spring elastic force is used to exert the weight load pressure, the weight load to the legs is also linearly changed, and the training effect of the legs is not ideal when the weight load is always the same from the squatting to the standing state of the user.
[0027] The lower limb rehabilitation standing posture calf trainer provided by the utility model solves the above-mentioned problems. Figures 3-5 As shown in the figure, the weight-bearing device comprises a weight-bearing device shell 9, a movable rod 10 is movably inserted in the weight-bearing device shell 9, the movable rod 10 is hinged to a rotating arm 3 at the top end, and a first movable block 11 movably connected in the weight-bearing device shell 9 is connected to the bottom end, the inside of the weight-bearing device shell 9 further movably connects a second movable block 15 sleeved on the outer circumferential side of the movable rod 10, the second movable block 15 and the first movable block 11 are connected with a spring 16 sleeved on the outer circumferential side of the movable rod 10, a cylinder 12 is arranged on the inside top wall of the weight-bearing device shell 9, the cylinder 12 is sleeved on the movable rod 10, the second movable block 15 is fixedly connected with the cylinder 12, the outer surface of the movable rod 10 and the inner surface of the cylinder 12 are provided with corresponding spiral grooves 14, the spiral grooves 14 are embedded with rolling balls 13, and the rolling balls 13 are movably connected in the two spiral grooves 14 and can roll along the tracks of the spiral grooves 14.
[0028] When the movable rod 10 moves upward or downward in the weight-bearing device shell 9, the second movable block 15 moves downward or upward in the weight-bearing device shell 9, when the movable rod 10 moves upward or downward, the rolling balls 13 rotate, the cylinder 12 rotates due to the rolling balls in the spiral grooves 14, and the cylinder 12 generates an upward or downward position while rotating, thereby driving the second movable block 15 to move in the direction opposite to the displacement of the movable rod 10.
[0029] When the movable rod 10 moves upward in the weight-bearing device shell 9 by a distance, the second movable block 15 moves downward to press the spring 16 from both sides in cooperation with the first movable block 11, so that the elastic compression amount of the spring 16 is no longer linearly increased.
[0030] When the movable rod 10 moves downward in the weight-bearing device shell 9 by a distance, the second movable block 15 moves upward to stretch the spring 16 from both sides in cooperation with the first movable block 11, so that the elastic stretching amount of the spring 16 is no longer linearly increased.
[0031] In an embodiment, the U-shaped frame 6 is provided with a handle 7 on each side. The U-shaped frame 6 is placed on the shoulders, the hands tightly hold the handle 7, and then slowly stand up, and the legs are stretched from the knee-bending state to the standing state, so that the calf muscles are exercised through the bending and stretching action of the legs.
[0032] In order to better hold the handle 7 with both hands, in an embodiment, a soft rubber layer is fixedly adhered to the outer peripheral wall of the handle 7.
[0033] In order to improve the comfort of the user's shoulders, in an embodiment, sponge pads 8 are arranged at the bottom of the two ends of the U-shaped frame 6. When the U-shaped frame 6 is lifted by the shoulders through the sponge pads 8, the degree of extrusion of the U-shaped frame 6 on the shoulders is reduced, and the comfort is improved.
[0034] In an embodiment, the other end of the base frame 1 is provided with a foot pedal 5 for standing support of the feet. When in use, the user stands on the equipment, the body is in a half-squat state, and the foot pedal 5 is placed under the feet.
[0035] In an embodiment, the outer dimensions of the first movable block 11 and the second movable block 15 are respectively matched with the inner dimensions of the weight-bearing device shell 9, and the first movable block 11 and the second movable block 15 are respectively slidably connected in the weight-bearing device shell 9.
[0036] The working principle of the utility model is as follows: when in use, the user stands on the equipment, the body is in a half-squat state, and the foot pedal 5 is placed under the feet, the U-shaped frame 6 is placed on the shoulders, the hands tightly hold the handle 7, and then slowly stand up, and the legs are stretched from the knee-bending state to the standing state, so that the calf muscles are exercised through the bending and stretching action of the legs. During the standing process, the shoulders upwardly hold the U-shaped frame 6 to drive the rotating arm 3 to rotate, the rotating arm 3 rotates to drive the movable rod 10 to move in the weight-bearing device shell 9, so as to pull the first movable block 11 to move upward to press the spring 16 to compress the spring 16. With the body gradually standing, the rotating angle of the rotating arm 3 gradually increases, and the compression amount of the first movable block 11 to the spring 16 gradually increases, so that the drag force of the spring 16 to the rotating arm 3 gradually increases, the pressure of the U-shaped frame 6 to the user's shoulders gradually increases, the weight of the user's legs gradually increases, and the muscle training of the legs is facilitated.
[0037] The inside of the weight-bearing device shell 9 is also movably connected with a second movable block 15 sleeved on the outer circumferential side of the movable rod 10, and the second movable block 15 is connected with the first movable block 11 through a spring 16 sleeved on the outer circumferential side of the movable rod 10. The movable rod 10 is connected with the second movable block 15 through a linkage structure. When the movable rod 10 moves up and down, the movable rod 10 is connected with the cylinder 12 through a transmission structure. When the movable rod 10 moves up and down in the weight-bearing device shell 9, the movable rod 10 moves up to a certain distance, and the ball 13 is clamped in the spiral groove 14 on the outer wall of the movable rod 10. When the movable rod 10 moves up, the ball 13 rolls in the spiral groove 14, which drives the cylinder 12 to rotate. When the movable rod 10 moves in the cylinder 12, the cylinder 12 rotates. The second movable block 15 is threadedly connected with the cylinder 12, which drives the second movable block 15 to move up and down, thereby compressing the spring 16 between the second movable block 15 and the first movable block 11. When the movable rod 10 moves up in the weight-bearing device shell 9, the second movable block 15 moves down, and the first movable block 11 presses the spring 16 in both directions, so that the elastic compression amount of the spring 16 is no longer linearly increased, and the weight of the leg is gradually increased from the knee bending state to the standing state.
Claims
1. A lower limb rehabilitation standing calf training device, comprising a base frame (1), one end of which is provided with a vertical beam (2), and the other end of which is hingedly mounted with a rotating arm (3), the other end of which is connected to a U-shaped frame (6), an L-shaped frame (4) is provided between the base frame (1) and the vertical beam (2), both ends of which are fixed to the base frame (1) and the vertical beam (2) respectively, and a weight is hingedly mounted on the L-shaped frame (4), the other end of which is connected to the rotating arm (3), characterized in that: The load-bearing device includes a load-bearing device housing (9), inside which a movable rod (10) is movably inserted. The top end of the movable rod (10) is hinged to a rotating arm (3), and the bottom end is connected to a first movable block (11) that is movably engaged inside the load-bearing device housing (9). Inside the load-bearing device housing (9), a second movable block (15) is also movably engaged and sleeved on the outer periphery of the movable rod (10). The second movable block (15) and the first movable block (11) are connected by a sleeved portion on the movable rod (10). The outer periphery spring (16) and the inner top wall of the load cell housing (9) are provided with a cylinder (12). The cylinder (12) is sleeved on the movable rod (10). The second movable block (15) is fixedly connected to the cylinder (12). The outer surface of the movable rod (10) and the inner surface of the cylinder (12) are provided with corresponding spiral grooves (14). The spiral grooves (14) are fitted with balls (13). The balls (13) are movably engaged in the two spiral grooves (14) and can roll along the track where the spiral grooves (14) are located.
2. The lower limb rehabilitation standing calf training device as described in claim 1, characterized in that: Handles (7) are provided on both sides of the U-shaped frame (6).
3. The lower limb rehabilitation standing calf training device as described in claim 2, characterized in that: The outer peripheral wall of the grip (7) is fixedly bonded with a soft rubber layer.
4. The lower limb rehabilitation standing calf training device as described in claim 1, characterized in that: The bottom of both ends of the U-shaped frame (6) is provided with sponge pads (8).
5. The lower limb rehabilitation standing calf training device as described in claim 1, characterized in that: The other end of the base frame (1) is provided with a foot pedal (5) for foot support.
6. The lower limb rehabilitation standing calf training device as described in claim 1, characterized in that: The second movable block (15) has an internal thread groove that matches the outer diameter of the cylinder (12), and the outer wall of the cylinder (12) has an external thread. The second movable block (15) is sleeved on the cylinder (12) and threadedly connected to the cylinder (12).
7. The lower limb rehabilitation standing calf training device as described in claim 1, characterized in that: The outer dimensions of the first movable block (11) and the second movable block (15) are adapted to the inner dimensions of the load cell housing (9), and the first movable block (11) and the second movable block (15) are slidably engaged inside the load cell housing (9).