A device for reinforcing a structure

Abstract

The application discloses a device for a muscle-stretching plate with a limiting function, which comprises a bottom plate, a pedal and a rotating shaft, the pedal is connected with the rotating shaft and is rotatably installed on the bottom plate through the rotating shaft, a buffer groove is formed at the edge position of the bottom plate on the side with the rotating shaft, the buffer groove is used for providing a buffer space for the edge position of the pedal and limiting the pedal from excessively overturning relative to the bottom plate, and a supporting piece is arranged between the bottom plate and the pedal, the supporting piece is used for supporting the pedal and enabling the pedal to be in an inclined arrangement for muscle-stretching training. The shape and size of the buffer groove are adapted to the edge structure of the pedal, when the pedal is in the working state of the inclined arrangement, the edge of the pedal can also abut against the buffer groove, the pedal is limited from excessively overturning relative to the bottom plate, and meanwhile, the pressure borne by the rotating shaft is shared.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a tension board device with a limiting function. Background Technology

[0002] A calf stretching board, also known as an incline pedal or calf stretcher, features a small, sloping pedal with an adjustable angle ranging from 15° to 45°. Utilizing body weight, it allows the heels to dangle and the body to lean slightly forward, continuously stretching the gastrocnemius and soleus muscles in the calf muscles while at rest. Holding each stretch for 20-30 seconds, three sets each morning and evening, gently relaxes tense muscle fibers and alleviates soreness and stiffness caused by lactic acid buildup after exercise. Made primarily of thickened PP or EVA with a non-slip surface and a widened silicone pad at the bottom, it can support over 100 kg without wobbling. For those who sit in offices for long periods, frequently wear high heels, or regularly run or jump rope, standing on it for a few minutes daily can promote blood flow in the lower limbs, reducing swelling and the risk of varicose veins. With consistent use for four to six weeks, calf flexibility improves, resulting in longer, more slender legs and a visually slimming effect. It is a simple and effective home relaxation exercise tool.

[0003] Currently available tie rod panels on the market are prone to excessive flipping when opened. Especially in cases where a push-button switch is not provided or is damaged, if no limiting device is designed, when a user lifts the tie rod panel with one hand, either of the upper or lower panels is very likely to impact the user due to excessive flipping, resulting in injury and posing a certain safety hazard. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a tie plate device with a limiting function.

[0005] This application provides a tie plate device with a limiting function, comprising: Base plate; A pedal and a pivot, wherein the pedal is connected to the pivot and is rotatably mounted on the base plate via the pivot; The base plate has a buffer groove formed at the edge of the side with the pivot. The buffer groove is used to provide buffer space for the edge of the pedal and to limit the excessive rotation of the pedal relative to the base plate. A support member is disposed between the base plate and the pedal, and the support member is used to support the pedal and tilt the pedal for stretching training.

[0006] In actual use, the shape and size of the buffer groove are adapted to the edge structure of the pedal. When the pedal is in an inclined working state, the edge of the pedal can also abut against the buffer groove, limiting the excessive rotation of the pedal relative to the base plate, and at the same time, sharing the pressure on the rotating shaft.

[0007] As one possible implementation, it also includes an arch training component, which has at least one set, including a slide rail and a slider. The slide rail is fixedly mounted on the pedal, and the slider is slidably disposed on the slide rail. The slider is connected to a sliding rod located on one side of the upper surface of the pedal, and the sliding rod is used for toes to hook for arch training.

[0008] By incorporating an arch training component on the pedal, the stretching board device not only performs its basic stretching function but also provides arch training. Users can choose to use the stretching board for stretching exercises, arch training, or both simultaneously. This enhances the practicality and cost-effectiveness of the stretching board device and reduces its rate of idleness.

[0009] In actual use, the slide rail can be integrally formed with the pedal, or it can be assembled with the slider and then fixedly installed onto the pedal.

[0010] As one possible implementation, the pedal includes a pedal body, the pedal body having an opening groove that extends through the thickness of the plate; The pedal body forms a first mounting space below the opening groove, the slide rail is fixed in the first mounting space, the guide direction of the slide rail is parallel to the longitudinal center line of the opening groove, and the longitudinal center line of the opening groove coincides with or is parallel to the long axis of the user's foot during the stretching training. The slider is disposed in the first installation space, and the slide rod extends upward through the opening slot to above the upper surface of the pedal body. A crossbar hook is formed at one end of the slide rod that extends out of the opening slot, and the length direction of the crossbar hook is perpendicular to the longitudinal center line of the opening slot.

[0011] Aligning the slider's sliding direction with or paralleling the long axis of the user's foot during stretching exercises ensures that the slider's degree of freedom is coaxial with the natural flexion and extension axis of the foot during stretching. This allows for simultaneous stretching and arch training.

[0012] In one possible implementation, the pedal body has a circumferentially arranged sidewall formed below the opening slot; It also includes a cover plate, which covers the side wall and forms the first installation space with the side wall and the pedal body; The sidewall has two opposing mounting holes on its two sidewalls, and the slide rail is engaged in the mounting holes.

[0013] In actual use, the cover plate and slide rail are detachably mounted on the side wall, which facilitates assembly. Meanwhile, there are gaps between the slider and the cover plate, pedal body, and side wall to avoid increasing frictional resistance during contact.

[0014] In one possible implementation, the slide rail includes two spaced-apart slide shafts, and the slider is simultaneously slidably mounted on both slide shafts.

[0015] The two parallel double-shaft structure allows the lateral force to be evenly distributed on the contact surface between the slider and the slide rail, making the slider run more smoothly.

[0016] As one possible implementation, the arch training component further includes a first elastic element, which provides resistance for arch training and enables the slider to automatically reset.

[0017] In one possible implementation, the first elastic element is a spring, which is sleeved on the slide shaft; One end of the first elastic element is connected to the slider, and the other end is connected to the slide rail or pedal.

[0018] When the first elastic element is connected to the slide rail, the end of the first elastic element is fixed on the slide rail. When the first elastic element is connected to the pedal, the end of the first elastic element is fixed on the pedal or abuts against the pedal.

[0019] In one possible implementation, the arch training component has two sets, which are spaced apart on the pedal.

[0020] As one possible implementation, it also includes an elastic rope, which has a handle and a mounting part. The elastic rope is installed below the base plate through the mounting part, and the handle of the elastic rope extends out of the base plate and is located on the top surface of the base plate. When the base plate remains relatively fixed, pulling the handle of the elastic rope can be used for tension training.

[0021] By incorporating elastic ropes into the base plate, the tension board device of this application also functions as a tension training device. In actual use, the user can step on the pedal to fix the base plate relatively (preferably when the pedal and base plate are in a retracted state), or fix the base plate to a fixed object by attaching the handle of the tension board device, or install suction cups on the base plate to fix the base plate to the floor.

[0022] As one possible implementation, it also includes a first fixed pulley and a second fixed pulley respectively installed below the base plate, and the elastic rope is respectively wound around the first fixed pulley and the second fixed pulley; The first fixed pulley is used to change the direction of the horizontally arranged elastic rope into a vertically upward elastic rope, so that the elastic rope can pass vertically upward from the base plate; The second fixed pulley is used to change the direction of the elastic rope in the horizontal direction, so as to extend the installation length of the elastic rope below the base plate.

[0023] As one possible implementation, the base plate is provided with an elastic buckle, the elastic buckle includes a first locking buckle, and the pedal is provided with a second locking buckle that cooperates with the first locking buckle. The second locking buckle and the first locking buckle lock and engage to lock the pedal and the base plate together.

[0024] The beneficial effects of this utility model are: (1) The shape and size of the buffer groove are adapted to the edge structure of the pedal. When the pedal is in an inclined working state, the edge of the pedal can also abut against the buffer groove, limiting the excessive rotation of the pedal relative to the base plate, and at the same time, sharing the pressure on the rotating shaft.

[0025] (2) By installing arch training components and elastic ropes on the pedals, the stretching board device not only has its own stretching function, but also has the functions of arch training and tension training. Users can choose to use the stretching board device for stretching training, tension training, arch training, or both simultaneously. The practicality and cost-effectiveness of the stretching board device are improved, and its idle rate can be reduced.

[0026] (3) The arch training component has two sets of corresponding feet. The slide rail of each set of arch training components includes two spaced slide shafts, which can evenly distribute the lateral force between the slider and the slide rail, making the slider run more smoothly. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of the tie plate device according to an embodiment of the present invention, viewed from the front. Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of AA; Figure 3 This is a schematic diagram of the axial structure of the tie plate device according to an embodiment of this utility model; Figure 4 yes Figure 3 A magnified schematic diagram of the structure of part A in the diagram; Figure 5 yes Figure 4 A magnified schematic diagram of the partial structure of B in the diagram; Figure 6 This is an axial side view of the tie plate device according to an embodiment of the present utility model (a cover plate and a bottom cover are hidden). Figure 7 yes Figure 6 A magnified schematic diagram of the structure of C in the middle; Figure 8 yes Figure 6 A magnified schematic diagram of the local structure of D; Figure 9 This is an axial side view of the base plate body according to an embodiment of the present utility model; Figure 10 This is a schematic diagram of the axonal structure of the foot arch training component according to an embodiment of the present invention.

[0028] The labels for the attached figures are as follows: 1. Base plate; 11. Gear adjustment mounting slot; 12. Through hole; 13. Base plate body; 131. Fixing hole; 14. Bottom cover; 15. Elastic buckle; 151. First locking buckle; 152. Second elastic element; 16. Buffer groove; 17. Second mounting space; 2. Pedal; 21. Pedal body; 211. Second locking buckle; 22. Side wall; 23. Opening groove; 24. First mounting space; 25. Cover plate; 26. Mounting hole; 27. Fixing buckle; 28. Rotating mounting groove; 29. ​​Storage mounting groove; 3. Rotating shaft; 4. Support component; 5. Foot arch training component; 51. Slide rail; 52. Slider; 53. Slide rod; 531. Crossbar hook; 54. First elastic element; 6. Elastic rope; 61. Handle; 62. Mounting part; 63. First fixed pulley; 64. Second fixed pulley. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings.

[0030] Please refer to Figures 1-10 This application provides a tie plate device with a limiting function, comprising: Base plate 1; The pedal 2 and the rotating shaft 3 are connected to the rotating shaft 3 and are rotatably mounted on the base plate 1 through the rotating shaft 3. The base plate 1 has a buffer groove 16 formed at the edge position on the side with the pivot 3. The buffer groove 16 is used to provide the buffer space required for the movement of the edge position of the pedal 2 and to limit the excessive rotation of the pedal 2 relative to the base plate 1. Support 4 is disposed between base plate 1 and pedal 2. Support 4 is used to support pedal 2 and tilt pedal 2 for stretching training.

[0031] In actual use, the shape and size of the buffer groove 16 are adapted to the edge structure of the pedal 2. When the pedal 2 is in an inclined working state, the edge of the pedal 2 can also abut against the buffer groove 16, limiting the excessive flipping of the pedal 2 relative to the base plate 1. Especially in the absence of a button switch or damage to the elastic lock 15, if there is no limit, when the user lifts the bracing plate with one hand, one of the upper and lower plates will hit the user due to excessive flipping.

[0032] In one embodiment, reference Figures 3-4 As shown, it also includes an arch training component 5, which has at least one set. The arch training component 5 includes a slide rail 51 and a slider 52. The slide rail 51 is fixedly installed on the pedal 2, and the slider 52 is slidably disposed on the slide rail 51. The slider 52 is connected to a slide rod 53, which is located on one side of the upper surface of the pedal 2. The slide rod 53 is used for the toes to hook for arch training. By incorporating an arch training component 5 on the footplate 2, the stretching board device not only performs its own stretching function but also provides arch training capabilities. Users can choose to use the stretching board device for stretching exercises, arch training, or both simultaneously. This enhances the practicality and cost-effectiveness of the stretching board device and reduces its idle rate.

[0033] In actual use, the slide rail 51 can be integrally formed with the pedal 2, or it can be assembled with the slider 52 and then fixedly installed on the pedal 2.

[0034] Please refer to Figure 3 , Figure 4 , Figure 2 and Figure 5 In one embodiment, the pedal 2 includes a pedal body 21, the pedal body 21 having an opening groove 23 that extends through the plate thickness direction; The pedal body 21 forms a first installation space 24 below the opening slot 23. The slide rail 51 is fixed in the first installation space 24. The guide direction of the slide rail 51 is parallel to the longitudinal center line of the opening slot 23. The longitudinal center line of the opening slot 23 coincides with or is parallel to the long axis of the user's foot during the stretching training. The slider 52 is disposed in the first mounting space 24, and the slide rod 53 extends upward through the opening slot 23 to above the upper surface of the pedal body 21. A crossbar hook 531 is formed at one end of the slide rod 53 that extends out of the opening slot 23. The length direction of the crossbar hook 531 is perpendicular to the longitudinal center line of the opening slot 23.

[0035] Aligning or paralleling the sliding direction of slider 52 with the long axis of the user's foot during stretching exercises ensures that the sliding freedom of slider 52 is coaxial with the natural flexion and extension axis of the foot during stretching exercises. This allows for simultaneous stretching and arch training.

[0036] In one embodiment, the pedal body 21 has a circumferentially arranged sidewall 22 formed below the opening slot 23; It also includes a cover plate 25, which covers the side wall 22 and forms a first installation space 24 with the side wall 22 and the pedal body 21. The side wall 22 has two opposing mounting holes 26 on its two opposite side walls, and the slide rail 51 is engaged in the mounting holes 26.

[0037] In actual use, the cover plate 25 and the slide rail 51 can be detachably installed on the side wall 22, which facilitates assembly. At the same time, the slider 52 has a gap between itself and the cover plate 25, the pedal body 21, and the side wall 22 to avoid increasing the frictional resistance of the contact.

[0038] In one embodiment, the side wall 22 has a fixing buckle 27, and the cover plate 25 is detachably mounted on the side wall 22 via the fixing buckle 27.

[0039] In one embodiment, the slider 52 has a perforation, and the slider 52 is slidably mounted on the slide rail 51 through the perforation.

[0040] In another embodiment, the slider 52 has a guide groove, and the slider 52 is slidably disposed on the slide rail 51 through the guide groove.

[0041] In one embodiment, the top surface of the base plate 1 has a plurality of spaced-apart gear adjustment mounting slots 11; The bottom surface of the pedal 2 is provided with a rotating mounting groove 28 and a storage mounting groove 29; The support member 4 is a rectangular frame structure. One end of the rectangular frame structure is rotatably installed in the rotating mounting groove 28, and the other pair of ends are set in the gear adjustment mounting groove 11. Alternatively, the remaining ends of the rectangular frame structure are set in the storage mounting groove 29.

[0042] In one embodiment, the top surface of the pedal 2 is provided with a soft rubber pad for contact with the sole of the foot.

[0043] In one embodiment, the cover plate 25 is also provided with a rotating mounting groove 28 for mounting the support member 4.

[0044] In one embodiment, the arch training component 5 further includes a first elastic element 54, which provides resistance for arch training and enables the slider 52 to automatically reset.

[0045] In one embodiment, the first elastic element 54 is a spring, which is sleeved on the slide shaft; One end of the first elastic element 54 is connected to the slider 52, and the other end is connected to the slide rail 51 or the pedal 2.

[0046] When the first elastic element 54 is connected to the slide rail 51, the end of the first elastic element 54 is fixed on the slide rail 51. When the first elastic element 54 is connected to the pedal 2, the end of the first elastic element 54 is fixed on the pedal 2 or abuts against the pedal 2.

[0047] In one embodiment, the slide rail 51 includes two spaced slide shafts, and the slider 52 is slidably disposed on both slide shafts.

[0048] The two parallel double-sliding shaft structures allow the contact surface between the slider 52 and the slide rail 51 to evenly distribute the lateral force, making the slider 52 run more smoothly.

[0049] In one specific embodiment, one end of the first elastic element 54 abuts against the side wall 22 of the pedal 2, and the other end abuts against the side wall of the slider 52.

[0050] In one embodiment, the arch training component 5 has two sets, which are spaced apart on the pedal 2.

[0051] Please refer to Figure 4 , Figure 6 , Figure 8 and Figure 10 In one embodiment, an elastic rope 6 is also included. The elastic rope 6 has a handle portion 61 and a mounting portion 62. The elastic rope 6 is disposed below the base plate 1 through the mounting portion 62. The handle portion 61 of the elastic rope 6 extends out of the base plate 1 and is located on the top surface of the base plate 1. When the base plate 1 remains relatively fixed, pulling the handle portion 61 of the elastic rope 6 can perform tension training.

[0052] By setting elastic ropes 6 on the base plate 1, the tension board device of this application also has the function of tension training. In actual use, the user can step on the pedal 2 to fix the base plate 1 (preferably when the pedal 2 and the base plate 1 are in the stored state), or fix the base plate 1 to a fixed object by fixing the handle of the tension board device, or install suction cups on the base plate 1 to fix the base plate 1 to the floor.

[0053] In one embodiment, it also includes a first fixed pulley 63 and a second fixed pulley 64 respectively installed below the base plate 1, and an elastic rope 6 is respectively wound around the first fixed pulley 63 and the second fixed pulley 64; The first fixed pulley 63 is used to change the direction of the horizontally positioned elastic rope 6 into a vertically upward elastic rope 6, so that the elastic rope 6 can pass vertically upward from the base plate. The second fixed pulley 64 is used to change the forward direction of the elastic rope 6 in the horizontal direction, so as to extend the installation length of the elastic rope 6 under the base plate 1, so that the user can stand on the pedal to perform arm strength pulling training.

[0054] In one specific embodiment, two through holes 12 are formed at the middle of the side of the base plate 1 away from the rotating shaft 3. Two first fixed pulleys 63 are fixedly installed below the two through holes 12 respectively. Four second fixed pulleys 64 are respectively provided at the four corners of the base plate 1. The two ends of the elastic rope 6 form mounting parts 62, and the middle of the elastic rope 6 forms a handle part 61. The two ends of the elastic rope 6 pass through the two through holes 12 from the top surface of the base plate 1, and pass around the first fixed pulley 63 and the second fixed pulley 64 in sequence. It is fixedly installed on the middle part of the side end of the base plate 1 near the rotating shaft 3. At this time, the middle part (handle part 61) of the elastic rope 6 is limited to the top surface of the base plate 1 so that the user can pull it with his hand.

[0055] In one specific embodiment, the first fixed pulley 63 and the second fixed pulley 64 are respectively mounted on the base plate 1 via shafts.

[0056] In another specific embodiment, a tensioner can be used instead of the first fixed pulley 63 and the second fixed pulley 64. The tensioner is fixedly installed below the base plate 1. The tensioner includes a box body, a central shaft and a spiral spring are provided inside the box body, a spool is sleeved on the central shaft, one end of the spiral spring is fixed inside the box body, and the other end is connected to the spool. The output end of the spool serves as the tension output end of the tensioner and is connected to the elastic rope 6 (so that the elastic rope 6 is coiled on the tensioner). The other end of the elastic rope 6 passes through the base plate 1 as a handle.

[0057] In one embodiment, the base plate 1 includes a base plate body 13 and a bottom cover 14 mounted on the base plate body 13. The base plate body 13 and the bottom cover 14 form a second mounting space 17 for accommodating the elastic rope 6, the first fixed pulley 63 and the second fixed pulley 64.

[0058] Please refer to Figure 2 and Figure 6 In one embodiment, the base plate 1 is provided with an elastic buckle 15, the elastic buckle 15 includes a first locking buckle 151, and the pedal 2 is provided with a second locking buckle 211 that cooperates with the first locking buckle 151. The second locking buckle 211 and the first locking buckle 151 lock and engage to lock the pedal 2 and the base plate 1.

[0059] In one embodiment, a second elastic element 152 is also included. The first locking buckle 151 is elastically mounted on the base plate 1 through the second elastic element 152. When the elastic locking buckle 15 is pressed, the first locking buckle 151 is released from the engagement with the second locking buckle 211, so that the pedal 2 can be opened relative to the base plate 1 and set in an inclined state.

[0060] In one specific embodiment, the second elastic element 152 is a spring.

[0061] In one specific embodiment, the base plate 1 is also provided with a column corresponding to the first locking buckle 151, the column being used to prevent the elastic rope 6 from interfering with the first locking buckle 151.

[0062] In another embodiment, the resilient latch 15 may also be provided on the pedal 2.

[0063] In one embodiment, the base plate 1 and the pedal 2 are respectively provided with a pivot hole 3, and the pivot hole 3 passes through the pivot hole 3 of the base plate 1 and the pivot hole 3 of the pedal 2 to make the base plate 1 and the pedal 2 rotatably connected.

[0064] In one specific embodiment, the base plate body 13 has a fixing hole 131, which cooperates with a fastener to fix the rotating shaft 3 on the base plate body 13, and the pedal 2 is rotatably mounted on the rotating shaft 3.

[0065] In one specific embodiment, the pedal 2 has at least one pawl, the pawl having a pawl groove, the shape and size of the pawl groove being adapted to the rotating shaft 3, and the pawl being rotatably mounted and engaged with the rotating shaft 3 through the pawl groove.

[0066] In another specific embodiment, the pedal 2 is rotatably mounted and fitted with the rotating shaft 3 through the shaft hole.

[0067] The above are merely preferred embodiments of this utility model and do not limit the scope of patent protection of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of this utility model.

Claims

1. A tie plate device with a limiting function, characterized in that, include: Base plate; A pedal and a pivot, wherein the pedal is connected to the pivot and is rotatably mounted on the base plate via the pivot; The base plate has a buffer groove formed at the edge of the side with the pivot. The buffer groove is used to provide buffer space for the edge of the pedal and to limit the excessive rotation of the pedal relative to the base plate. A support member is disposed between the base plate and the pedal, and the support member is used to support the pedal and tilt the pedal for stretching training.

2. The tie plate device with limiting function as described in claim 1, characterized in that, It also includes an arch training component, which has at least one set. The arch training component includes a slide rail and a slider. The slide rail is fixedly installed on the pedal, and the slider is slidably disposed on the slide rail. The slider is connected to a sliding rod located on one side of the upper surface of the pedal. The sliding rod is used for toes to hook for arch training.

3. The tie plate device with limiting function as described in claim 2, characterized in that, The pedal includes a pedal body, which has an opening groove that extends through the thickness of the pedal. The pedal body forms a first mounting space below the opening groove, the slide rail is fixed in the first mounting space, the guide direction of the slide rail is parallel to the longitudinal center line of the opening groove, and the longitudinal center line of the opening groove coincides with or is parallel to the long axis of the user's foot during the stretching training. The slider is disposed in the first installation space, and the slide rod extends upward through the opening slot to above the upper surface of the pedal body. A crossbar hook is formed at one end of the slide rod that extends out of the opening slot, and the length direction of the crossbar hook is perpendicular to the longitudinal center line of the opening slot.

4. The tie plate device with limiting function as described in claim 3, characterized in that, The pedal body has a circumferentially arranged sidewall below the opening slot; It also includes a cover plate, which covers the side wall and forms the first installation space with the side wall and the pedal body; The sidewall has two opposing mounting holes on its two sidewalls, and the slide rail is engaged in the mounting holes.

5. A tie plate device with limiting function as described in claim 2, characterized in that, The slide rail includes two spaced-apart slide shafts, and the slider is simultaneously slidably mounted on the two slide shafts.

6. The tie plate device with limiting function as described in claim 5, characterized in that, The arch training component also includes a first elastic element, which is used to provide resistance for arch training and to realize the automatic reset of the slider; The first elastic element is a spring, which is sleeved on the slide shaft; One end of the first elastic element is connected to the slider, and the other end is connected to the slide rail or pedal.

7. A tie plate device with limiting function as described in claim 2, characterized in that, The arch training component has two sets, which are spaced apart on the pedal.

8. The tie plate device with limiting function as described in claim 1, characterized in that, It also includes an elastic rope, which has a handle and a mounting part. The elastic rope is installed below the base plate through the mounting part, and the handle of the elastic rope extends out of the base plate and is located on the top surface of the base plate. When the base plate remains relatively fixed, pulling the handle of the elastic rope can be used for tension training.

9. A tie plate device with limiting function as described in claim 8, characterized in that, It also includes a first fixed pulley and a second fixed pulley respectively installed below the base plate, and the elastic rope is respectively wound around the first fixed pulley and the second fixed pulley; The first fixed pulley is used to change the direction of the horizontally arranged elastic rope into a vertically upward elastic rope, so that the elastic rope can pass vertically upward from the base plate; The second fixed pulley is used to change the direction of the elastic rope in the horizontal direction, so as to extend the installation length of the elastic rope below the base plate.

10. A tie plate device with limiting function as described in claim 1, characterized in that, The base plate is provided with an elastic buckle, which includes a first locking buckle. The pedal is provided with a second locking buckle that cooperates with the first locking buckle. The second locking buckle and the first locking buckle lock together to lock the pedal and the base plate.

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