Ligament stretching device

Abstract

The utility model provides a ligament stretching device, which belongs to the field of physical exercise, aims to solve the problem of inaccurate ligament stretching force control, and comprises a device guide frame, a sliding cushion is slidably connected to the top of the device guide frame, a control rotating rod is rotatably connected to the middle of the bottom of the sliding cushion, a control motor is fixedly installed on the bottom end face of the sliding cushion on the right side of the control rotating rod, control swing arms are slidably connected to the front ends of the left side and the right side of the device guide frame, and swing control rods are in threaded connection with one sides of the tops of the control swing arms. Driving motors are fixedly installed at the front ends of the left side and the right side of the device guide frame, and transmission shaft columns are inserted into the shaft ends of the driving motors. According to the ligament stretching device, the control rotating rod is driven by the control motor to rotate, the meshing position of the control rotating rod and the control screw rod is changed, and the control rotating rod is rotationally connected into the two limiting shaft sleeves at the bottom of the sliding cushion, so that the sliding cushion can be driven to slowly get away from the stretching vertical rod of the device guide frame, and ligament stretching operation of the legs is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of sports exercise technology, and in particular to a ligament stretching device. Background Technology

[0002] In modern sports training, sports rehabilitation, and daily fitness activities, ligament stretching is a crucial step that plays a vital role in improving athletic performance, preventing sports injuries, and promoting physical recovery. Existing ligament stretching methods mainly rely on simple auxiliary tools, such as yoga straps. The control of the stretching force depends entirely on the user's own feeling and experience, making it difficult to achieve precise quantitative adjustment. For users with different physical conditions, different training stages, and different degrees of ligament injury, it is impossible to accurately achieve the optimal stretching force required by each individual. This may result in insufficient stretching, which fails to achieve the expected results, or excessive stretching, which may cause new injury risks. Utility Model Content

[0003] The purpose of this invention is to provide a ligament stretching device to solve the problem that existing ligament stretching methods mentioned in the background art mainly rely on some simple auxiliary tools. The control of stretching force depends entirely on the user's own feeling and experience, making it difficult to achieve precise quantitative adjustment. For users with different physical conditions, different training stages, and different degrees of ligament injury, it is impossible to accurately achieve the optimal stretching force required by each individual. This may lead to insufficient stretching and failure to achieve the expected effect, or excessive stretching and the risk of new injury.

[0004] The purpose and effect of this ligament stretching device are achieved by the following specific technical means:

[0005] A ligament stretching device includes a device guide frame; a sliding cushion is slidably connected to the top of the device guide frame, a control rod is rotatably connected to the bottom center of the sliding cushion, a control motor is fixedly installed on the bottom end face of the sliding cushion to the right of the control rod, control swing arms are slidably connected to the front ends of the left and right sides of the device guide frame, a swing control rod is threadedly connected to the top side of the control swing arm, and drive motors are fixedly installed on the front ends of the left and right sides of the device guide frame, with a transmission shaft column inserted into the shaft end of the drive motor.

[0006] Furthermore, the device guide is in the shape of a rectangular frame, and trapezoidal sliding guide grooves are opened in the top left and right end faces of the device guide. Eight support pads are fixedly installed in a rectangular array on the bottom end face of the device guide. Control screws are fixedly connected to the middle of the front and rear inner side walls of the device guide.

[0007] Furthermore, two trapezoidal sliding guide blocks are symmetrically installed on the left and right sides of the bottom of the sliding cushion. The sliding guide blocks are slidably connected to the sliding guide groove opened on the top end face of the device guide frame. Three control switches are installed at equal intervals on the front side wall of the sliding cushion, and two buttons are installed on the control switches.

[0008] Furthermore, a limiting bushing is fixedly connected to the middle of the front and rear sides of the bottom end face of the sliding seat. The front and rear ends of the control rod are rotatably connected to the limiting bushing. The control rod is threadedly connected to the control screw in the middle of the front and rear inner side walls of the device guide. A transmission gear is fixedly installed on the outer side wall of the front end of the control rod. The left side of the drive gear fixedly installed on the front side of the control motor and the right side of the transmission gear are meshed.

[0009] Furthermore, tension rods are fixedly connected to the left and right sides of the front end of the device guide frame. The top of the tension rods is arc-shaped and has a swing guide groove that runs through the left and right sides. Ankle pad rods are threaded to the bottom of the opposite side walls of the two tension rods. A silicone pad is sleeved on the outside of the ankle pad rod. An installation plate is fixedly installed on the bottom of the opposite side walls of the two tension rods. A drive motor is fixedly installed on the installation plate. Three planetary gears are rotatably connected in a ring array on the side wall of the tension rod opposite to the drive motor shaft. The outer sides of the three planetary gears are meshed with an internal gear ring opened on one side of the bottom of the control swing arm.

[0010] Furthermore, the drive shaft end of the drive motor is provided with a shaft connection slot, and the shaft connection plug end of the transmission shaft column is inserted into the shaft connection slot of the drive motor. The outer side wall of the transmission shaft column is provided with an outer control tooth in a ring array, and the outer side of the outer control tooth meshes with three planetary gears on the outer side wall of the tension rod.

[0011] This utility model provides a ligament stretching device, which has the following beneficial effects:

[0012] 1. By controlling the meshing of the drive gear and transmission gear on the front side of the motor, the motor can drive the control rod to rotate. When the control rod rotates, the meshing position of the control rod and the control screw is changed. The control rod is connected to the two limit bushings at the bottom of the sliding seat, which can drive the sliding seat to slowly move away from the tensioning rod of the device guide frame in order to perform ligament stretching operation of the legs.

[0013] 2. By connecting the drive motor's shaft connector slot and the transmission shaft's shaft connector plug, the drive motor can drive the transmission shaft to rotate. This allows the external control gear of the transmission shaft to engage with three planetary gears. In turn, the three planetary gears and the internal gear ring work together to change the angle of the control arm. This allows the swing arm to swing and adjust the position of the swing control lever in the swing guide groove. The swing control lever can then be used to control whether the pressure is on the foot surface or the sole of the foot, thus creating a rope-pulling effect on the leg ligaments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the right front side axial view structure of this utility model;

[0015] Figure 2 This is a bottom-view structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the tension upright of this utility model;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the control arm and swing control lever of this utility model;

[0019] Figure 6 This utility model Figure 5 A magnified structural diagram at point A.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Device guide frame; 101. Sliding guide groove; 102. Support pad; 103. Control screw; 104. Tensioning upright; 105. Swinging guide groove; 106. Mounting plate; 2. Sliding seat cushion; 201. Sliding guide block; 202. Control switch; 203. Limiting bushing; 3. Control rotating rod; 301. Transmission gear; 4. Control motor; 401. Drive gear; 5. Control swing arm; 501. Internal gear ring; 6. Drive motor; 601. Shaft connector slot; 7. Planetary gear; 8. Ankle pad rod; 9. Swinging control rod; 10. Transmission shaft column; 1001. Shaft connector plug; 1002. External control gear. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0023] Example 1:

[0024] As attached Figure 1 To be continued Figure 6 As shown:

[0025] This utility model provides a ligament stretching device, comprising: a device guide frame 1; a sliding cushion 2 slidably connected to the top of the device guide frame 1, a control rod 3 rotatably connected to the bottom center of the sliding cushion 2, a control motor 4 fixedly installed on the bottom end face of the sliding cushion 2 to the right of the control rod 3, control swing arms 5 slidably connected to the front ends of the left and right sides of the device guide frame 1, a swing control rod 9 threadedly connected to one side of the top of the control swing arm 5, and drive motors 6 fixedly installed on the front ends of the left and right sides of the device guide frame 1, with a transmission shaft column 10 inserted into the shaft end of the drive motor 6. The device guide frame 1 is in the shape of a rectangular frame, and the top of the device guide frame 1... The left and right end faces of the device guide frame 1 are provided with trapezoidal sliding guide grooves 101. The bottom end face of the device guide frame 1 is fixedly installed with eight support pads 102 in a rectangular array. The control screws 103 are fixedly connected to the middle of the front and rear inner side walls of the device guide frame 1. Specifically, by providing sliding guide grooves 101 in the top left and right end faces of the device guide frame 1, the sliding direction of the sliding cushion 2 is guided, thereby improving the stability and accuracy of the sliding cushion 2 during sliding. The support pads 102 are fixedly connected to the bottom end face of the device guide frame 1, which can distribute the force of the device guide frame 1 on the ground.

[0026] The sliding cushion 2 has two trapezoidal sliding guide blocks 201 symmetrically installed on the left and right sides of its bottom. The sliding guide blocks 201 are slidably connected to the sliding guide groove 101 opened on the top end face of the device guide frame 1. Three control switches 202 are evenly installed on the front side wall of the sliding cushion 2. Each control switch 202 has two buttons. A limit sleeve 203 is fixedly connected to the middle of the front and rear sides of the bottom end face of the sliding cushion 2. The front and rear ends of the control rod 3 are rotatably connected to the limit sleeve 203. The control rod 3 is threadedly connected to the control screw 103 located in the middle of the front and rear inner side walls of the device guide frame 1. The front end of the control rod 3 is on the outer side wall. A transmission gear 301 is fixedly installed on the upper part. The left side of the drive gear 401 fixedly installed on the front side of the control motor 4 meshes with the right side of the transmission gear 301. Specifically, by meshing the drive gear 401 and the transmission gear 301 on the front side of the control motor 4, the control motor 4 can drive the control rod 3 to rotate. Thus, when the control rod 3 rotates, the meshing position of the control rod 3 and the control screw 103 is changed. Furthermore, the control rod 3 is rotatably connected to the two limiting bushings 203 at the bottom of the sliding cushion 2, which can drive the sliding cushion 2 to slowly move away from the tensioning rod 104 of the device guide frame 1, so as to perform ligament stretching operation of the legs.

[0027] The device guide frame 1 has tension rods 104 fixedly connected to the left and right sides of its front end. The top of the tension rods 104 is arc-shaped and has a swing guide groove 105 that runs through the left and right sides. Ankle pad rods 8 are threadedly connected to the bottom of the opposite side walls of the two tension rods 104. A silicone pad is sleeved on the outside of the ankle pad rod 8. Mounting plates 106 are fixedly installed on the bottom of the opposite side walls of the two tension rods 104. A drive motor 6 is fixedly installed on the mounting plate 106. Three planetary gears 7 are rotatably connected in a ring array on the side wall of the tension rods 104 opposite to the shaft of the drive motor 6. The outer sides of the three planetary gears 7 are meshed with an internal gear ring 501 opened on one side of the bottom of the control swing arm 5. A shaft connection slot 601 is opened at the drive shaft end of the drive motor 6. The shaft connection plug 1001 end of the transmission shaft column 10 is inserted into the drive motor. In the shaft connection slot 601 of motor 6, the outer side wall of the drive shaft column 10 is provided with an outer control tooth 1002 in a ring array. The outer side of the outer control tooth 1002 meshes with the three planetary gears 7 on the outer side wall of the tension rod 104. Specifically, through the connection between the shaft connection slot 601 of the drive motor 6 and the shaft connection plug 1001 of the drive shaft column 10, the drive motor 6 can drive the drive shaft column 10 to rotate. Thus, through the cooperation of the outer control tooth 1002 of the drive shaft column 10 and the three planetary gears 7, and the cooperation of the three planetary gears 7 and the internal gear ring 501, the angle of the control arm 5 is changed. Thus, by controlling the swing of the control arm 5, the position of the swing control rod 9 in the swing guide groove 105 is adjusted, so that the swing control rod 9 can control whether to press the foot surface or the sole of the foot, thereby producing a rope-pulling effect on the leg ligaments.

[0028] The specific usage and function of this embodiment are as follows:

[0029] When using this ligament stretching device, sliding guide grooves 101 are opened in the top left and right end faces of the device guide frame 1 to guide the forward and backward sliding direction of the sliding cushion 2, thereby improving the stability and accuracy of the sliding cushion 2 during sliding. Support feet 102 are fixedly connected to the bottom end face of the device guide frame 1. The support feet 102 can distribute the force on the device guide frame 1 on the ground. By controlling the meshing of the drive gear 401 and transmission gear 301 on the front side of the control motor 4, the control motor 4 can drive the control rod 3 to rotate. Thus, when the control rod 3 rotates, the meshing position of the control rod 3 and the control screw 103 is changed. The control rod 3 is also rotatably connected to two limiters at the bottom of the sliding cushion 2. Within the bushing 203, the sliding seat 2 can be slowly moved away from the tension rod 104 of the device guide frame 1 to perform ligament stretching operations on the legs. The drive motor 6 is connected to the shaft connector slot 601 and the shaft connector plug 1001 of the transmission shaft column 10, so that the drive motor 6 can drive the transmission shaft column 10 to rotate. The outer control gear 1002 of the transmission shaft column 10 cooperates with the three planetary gears 7. Under the cooperation of the three planetary gears 7 and the internal gear ring 501, the angle of the control arm 5 is changed. The position of the swing control rod 9 in the swing guide groove 105 is adjusted by controlling the swing of the control arm 5, so that the foot surface or the sole of the foot is pressed by the swing control rod 9, thereby producing a rope-pulling effect on the leg ligaments.

[0030] Example 2:

[0031] By installing straps or safety belts on the left and right sides of the sliding seat cushion 2 to fix the hip bone area, the user's hip bone area is fixed in place, so as to avoid the stretching effect being reduced due to the hip sliding when stretching ligaments.

Claims

1. A ligament stretching device, characterized in that: The device includes a guide frame (1); a sliding seat (2) is slidably connected to the top of the guide frame (1), a control rod (3) is rotatably connected to the middle of the bottom of the sliding seat (2), a control motor (4) is fixedly installed on the bottom end face of the sliding seat (2) on the right side of the control rod (3), a control swing arm (5) is slidably connected to the front ends of the left and right sides of the guide frame (1), a swing control rod (9) is threadedly connected to the top side of the control swing arm (5), a drive motor (6) is fixedly installed on the front ends of the left and right sides of the guide frame (1), and a transmission shaft column (10) is inserted into the shaft end of the drive motor (6).

2. The ligament stretching device according to claim 1, characterized in that: The device guide (1) is in the shape of a rectangular frame. The top left and right end faces of the device guide (1) are provided with trapezoidal sliding guide grooves (101). The bottom end face of the device guide (1) is fixedly installed with eight support pads (102) in a rectangular array. The front and rear inner side walls of the device guide (1) are fixedly connected with control screws (103).

3. The ligament stretching device according to claim 1, characterized in that: Two trapezoidal sliding guide blocks (201) are symmetrically installed on the left and right sides of the bottom of the sliding cushion (2). The sliding guide blocks (201) are slidably connected in the sliding guide groove (101) opened on the top end face of the device guide frame (1). Three control switches (202) are installed at equal intervals on the front side wall of the sliding cushion (2). Two buttons are installed on the control switches (202).

4. The ligament stretching device according to claim 1, characterized in that: The sliding seat (2) has a limiting bushing (203) fixedly connected to the middle of the front and rear sides of the bottom end face. The front and rear ends of the control rod (3) are rotatably connected in the limiting bushing (203). The control rod (3) is threadedly connected to the control screw (103) in the middle of the front and rear inner side walls of the device guide (1). A transmission gear (301) is fixedly installed on the outer side wall of the front end of the control rod (3). The left side of the drive gear (401) fixedly installed on the front side of the control motor (4) and the right side of the transmission gear (301) are meshed.

5. The ligament stretching device according to claim 1, characterized in that: Tension rods (104) are fixedly connected to the left and right sides of the front end of the device guide frame (1). The top of the tension rod (104) is arc-shaped and has a swing guide groove (105) that runs through the left and right sides. Ankle pad rods (8) are threadedly connected to the bottom of the opposite side walls of the two tension rods (104). A silicone pad is sleeved on the outside of the ankle pad rod (8). An installation plate (106) is fixedly installed on the bottom of the opposite side walls of the two tension rods (104). A drive motor (6) is fixedly installed on the installation plate (106). Three planetary gears (7) are rotatably connected in a ring array on the side wall of the tension rod (104) opposite to the shaft of the drive motor (6). The outer sides of the three planetary gears (7) are meshed with the internal gear ring (501) opened on one side of the bottom of the control swing arm (5).

6. The ligament stretching device according to claim 1, characterized in that: The drive shaft of the drive motor (6) has a shaft connection slot (601) at its end. The shaft connection plug (1001) of the transmission shaft column (10) is inserted into the shaft connection slot (601) of the drive motor (6). The outer side wall of the transmission shaft column (10) is provided with an outer control tooth (1002) in a ring array. The outer side of the outer control tooth (1002) meshes with the three planetary gears (7) on the outer side wall of the tension rod (104).

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