Training mechanism for correcting flatfoot of child

Abstract

The invention belongs to the field of flatfoot correction, and particularly relates to a training mechanism for children flatfoot correction, which comprises a telescopic shoe board structure, and the telescopic shoe board structure comprises a first shoe board and a second shoe board. By arranging the telescopic shoe board structure, controllable adjustment of the length of the shoe board can be achieved by adjusting the distance between the first shoe board and the second shoe board in use, after the length of the shoe board is determined, a clamping plate can be rotated to enable a first column nail on the upper side of the clamping plate to be connected into a connecting hole in a clamped mode, and then the length of the shoe board is fixed completely; by arranging an adjustable sleeving assembly, an arc-shaped block is connected to the shank of a patient in a sleeving mode, then a displacement crawler belt is pulled to enable the arc-shaped block to be tightly attached to the shank of the patient, finally locking leather is pulled to enable number column nails on the side face of the locking leather to be clamped into penetrating holes, at the moment, clamping blocks are connected into clamping grooves in a meshed mode, and fixing of the displacement crawler belt is achieved; therefore, the device can bind the patient.

Description

Technical Field

[0001] The invention belongs to the field of flat foot correction, and in particular relates to a training mechanism for correcting children's flat feet. Background Art

[0002] Flat feet, also known as "flat feet" or "flat feet syndrome", refers to the overall flat appearance of the sole of the foot due to the lowering or loss of the arch of the foot. The arch of the foot has no obvious curve. Under normal circumstances, there is a curved "arch" structure on the sole of the foot that absorbs shock, supports body weight and cushions impact. In people with flat feet, this arch structure is low or disappears, resulting in an increase in the ground contact area of the foot, which may cause discomfort or other health problems.

[0003] There are several ways to treat flat feet:

[0004] 1. Conservative treatment:

[0005] Orthotic insoles: These help restore arch function by providing support through the use of specially designed insoles;

[0006] Exercise therapy: Strengthen the muscles of the foot, especially the muscles that support the arch of the foot, such as the calf muscles and toe flexors;

[0007] Physical therapy: Massage, stretching, and other methods can help relieve pain and improve foot function.

[0008] 2. Medication: If foot pain is present, your doctor may recommend nonsteroidal anti-inflammatory drugs to relieve pain and inflammation.

[0009] 3. Surgical treatment: For patients with severe symptoms who are ineffective with conservative treatment, surgical treatment may be considered. Surgical methods include reconstructing the arch of the foot, repairing ligaments or joints, etc.

[0010] Existing publication number CN216777310U discloses a training mechanism for correcting flat feet in children, including a device base with a support base installed at the lower end, the device base forming a rotating mechanism through a bearing installed at its upper end and a rotating shaft; a device plate, which is interconnected with the rotating shaft, and a receiving plate is symmetrically provided at the lower end of the device plate; the receiving plate is fitted with a fixed rod through a groove provided at its upper end, and the fixed rod is connected to the device base through a through hole opened on the device base, and a fixing spring is installed on both the device base and the fixed rod; a first slider is slidably connected to the device plate through a groove provided on the device plate, and a movable plate is installed on the upper end of the first slider.

[0011] Existing training institutions for children's flat foot correction still have the following shortcomings:

[0012] 1. When conservatively treating children's flat feet, a corrective training structure is needed. Since children of different ages have different physical development conditions, their ankle diameters and foot sizes are also different. If the training device is customized according to the patient's physical condition, it will increase the patient's treatment cost on the one hand, and reduce the universal applicability of the device on the other hand.

[0013] 2. According to the severity of children's flat feet and subsequent correction, the correction force of the device also needs to be able to be adjusted at any time, so as to better provide targeted treatment to patients.

[0014] 3. For patients who use correction devices for the first time, a preliminary diagnosis of their condition is required, and during the subsequent correction process, the patient's physical condition needs to be monitored in real time so that the patient can have a better correction plan and arrangement. Summary of the Invention

[0015] The purpose of the present invention is to address the problem raised in the above-mentioned background technology that due to the different physical development conditions of children of different ages, the ankle diameter and foot size of children are also different. If the training device is customized according to the patient's physical condition, on the one hand, it will increase the patient's treatment cost, and on the other hand, it will reduce the universal applicability of the device. According to the degree of flat feet of children and the subsequent correction, the correction force of the device also needs to be able to be adjusted at any time, so as to better target the treatment of patients. For patients who use the correction device for the first time, their condition needs to be preliminarily diagnosed, and in the subsequent correction process, the patient's physical condition needs to be monitored in real time so that the patient can have a better correction plan and arrangement. A training mechanism for correcting flat feet in children is provided.

[0016] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a training mechanism for correcting flat feet in children, comprising a retractable shoe plate structure, an adjustable sleeve assembly, a lateral resistance assembly and a front resistance assembly, the retractable shoe plate structure comprising a No. 1 shoe plate and a No. 2 shoe plate, the upper surface of the No. 1 shoe plate being fixedly connected to a side plate, the upper surface of the No. 2 shoe plate being fixedly connected to a shoe cover, an extension rod being slidably connected inwardly of the side surfaces of the No. 1 shoe plate and the No. 2 shoe plate being close to each other, the lower surfaces of the No. 1 shoe plate and the No. 2 shoe plate are both provided with a plurality of connecting holes, a clamping plate is provided beside the connecting hole, the two clamping plates are respectively rotatably connected to the lower surfaces of the No. 1 shoe plate and the No. 2 shoe plate, and the upper surface of the clamping plate is clamped and connected to the connecting hole through a No. 1 stud.

[0017] Furthermore, the adjustable sleeve assembly includes four arc blocks, which are arranged in a circular array on the upper side of the No. 1 shoe plate. Connecting leather is fixedly connected between the arc blocks and the upper surface of the side panels. An oblique groove is provided inside the arc blocks, and a size adjustment structure is provided between two adjacent arc blocks.

[0018] Furthermore, the size adjustment structure includes a shift track, which is fixedly connected to the side of the arc block, and the end of the shift track passes through and is slidably connected to the oblique groove. The outer side of the shift track is evenly provided with a plurality of slots, and the side of the outer side of the arc block away from the oblique groove is fixedly connected to a fixed bent rod, and the side of the outer side of the arc block close to the oblique groove is fixedly connected to a locking leather, and the outer side of the locking leather is evenly provided with a plurality of through-holes, and the inner side of the locking leather is fixedly connected with a clamping block, which is meshed and connected to the clamping slot, and the end of the locking leather surrounds the fixed bent rod and is clamped in the through-hole through the No. 2 column nail.

[0019] Furthermore, the lateral resistance assembly includes a lateral correction box, the lateral correction box is fixedly connected to the outer side of the arc block, a No. 1 fixing plate is slidably connected to the inside of the lateral correction box, the upper surface of the No. 1 fixing plate is fixedly connected to a No. 1 threaded column, the upper surface of the lateral correction box is rotatably connected to a No. 1 nut, the No. 1 threaded column passes through the upper surface of the lateral correction box, the No. 1 threaded column is threadedly connected to the No. 1 nut, the lower surface of the No. 1 fixing plate is fixedly connected to a No. 1 monitor, the lower surface of the No. 1 monitor is fixedly connected to a No. 1 spring, and the lower end of the No. 1 spring is fixedly connected to a transmission Rod, the transmission rod is set in a " " shape, and a No. 1 tooth groove is provided on the side of the transmission rod, and the inner side of the lateral correction box is rotatably connected with a gear shaft, and the gear shaft is meshed and connected in the No. 1 tooth groove, and the lateral correction box is rotatably connected with a rotating rod, and the rotating rod is set on the lower side of the gear shaft, and the side of the side plate is fixedly connected with a fixed seat, and a transmission plate is rotatably connected in the fixed seat, and a No. 2 tooth groove is provided on the upper surface of the transmission plate, and the transmission plate is set between the gear shaft and the rotating rod, and the lower side of the gear shaft is meshed and connected in the No. 2 tooth groove, and the upper surface of the transmission plate is provided with a through groove, and the transmission rod passes through the through groove.

[0020] The locking plate is fixedly secured to the front of the locking plate and is secured to the locking plate by a spring which is fixed to the locking plate to lock the locking plate.

[0021] Compared with existing technologies, the advantages of this training mechanism for children's flat feet correction are:

[0022] 1. The present invention is provided with a retractable shoe plate structure. During use, the distance between the No. 1 shoe plate and the No. 2 shoe plate can be adjusted to achieve controllable adjustment of the length of the shoe plate. After determining the length of the shoe plate, the clamping plate can be rotated so that the No. 1 post nail on its upper side is engaged and connected in the connecting hole, thereby fixing the length of the complete shoe plate. By providing an adjustable sleeve assembly, the arc block is sleeved on the patient's calf, and then the shift track is pulled to make the arc block close to the patient's calf, and finally the locking leather is pulled so that the No. 1 post nail on the side of the locking leather is engaged in the through hole. At this time, the clamping block is engaged and connected in the clamping groove, thereby achieving the fixation of the shift track, and thus completing the binding of the device to the patient.

[0023] 2. The present invention respectively provides a No. 1 fixing plate and a No. 2 fixing plate in the lateral correction box and the front correction box, and respectively provides a No. 1 threaded column and a No. 2 threaded column on the upper surface of the No. 1 fixing plate and the No. 2 fixing plate. The rotation of the No. 1 threaded column and the No. 2 threaded column is controlled by the No. 1 nut and the No. 2 nut, and then the position of the No. 1 spring and the No. 2 spring is adjusted, thereby achieving the purpose of adjusting the resistance size in resistance training.

[0024] 3. The present invention connects monitor No. 1 and monitor No. 2 to the upper sides of spring No. 1 and spring No. 2 respectively. During resistance training, the springs transmit the reaction force to the monitors, and the monitors then transmit the resistance magnitude to an external device, thereby monitoring the patient's resistance training status and facilitating subsequent correction and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of a top view of a training mechanism for correcting flat feet in children provided by the present invention;

[0026] Figure 2 Schematic diagrams of the structure of a shoe plate of a training mechanism for correcting flat feet for children provided by the present invention, viewed from above and below;

[0027] Figure 3 This is a schematic structural diagram of the rear side of a training mechanism for correcting flat feet in children provided by the present invention;

[0028] Figure 4 yes Figure 3 Enlarged view of part A;

[0029] Figure 5 This is a front structural diagram of a training mechanism for correcting flat feet in children provided by the present invention;

[0030] Figure 6 yes Figure 5 Enlarged view of part B;

[0031] Figure 7 This is a side view structural diagram of a training mechanism for correcting flat feet in children provided by the present invention;

[0032] Figure 8 yes Figure 7 Magnified view of part C.

[0033] In the figure, 1 No. 1 shoe plate, 2 No. 2 shoe plate, 3 side plate, 4 shoe cover, 5 extension rod, 6 clamping plate, 7 connecting hole, 8 connecting leather, 9 arc block, 10 oblique groove, 11 shift track, 12 clamping slot, 13 locking leather, 14 through-hole, 15 fixed bent rod, 16 clamping block, 17 lateral correction box, 18 No. 1 fixing plate, 19 No. 1 threaded column, 20 No. 1 nut, 21 No. 1 spring, 22 transmission rod, 23 No. 1 tooth groove, 24 gear shaft, 25 transmission plate, 26 No. 2 tooth groove, 27 through-groove, 28 fixed seat, 29 front correction box, 30 No. 2 fixing plate, 31 No. 2 threaded column, 32 No. 2 nut, 33 No. 2 monitor, 34 No. 2 spring, 35 bottom plate, 36 side groove, 37 lateral block, 38 connecting rod, 39 fixed cross bar. DETAILED DESCRIPTION

[0034] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0035] like Figures 1-8As shown, a training mechanism for correcting flat feet in children includes a retractable shoe plate structure, an adjustable sleeve assembly, a lateral resistance assembly, and a front resistance assembly. The retractable shoe plate structure includes a No. 1 shoe plate 1 and a No. 2 shoe plate 2. The upper surface of the No. 1 shoe plate 1 is fixedly connected to a side plate 3, the upper surface of the No. 2 shoe plate 2 is fixedly connected to a shoe cover 4, and an extension rod 5 is slidably connected to the inner side of the No. 1 shoe plate 1 and the No. 2 shoe plate 2 adjacent to each other. The lower surfaces of the No. 1 shoe plate 1 and the No. 2 shoe plate 2 are both provided with a plurality of connection holes 7 for connecting A clamping plate 6 is provided beside the hole 7. The two clamping plates 6 are rotatably connected to the lower surfaces of the No. 1 shoe plate 1 and the No. 2 shoe plate 2 respectively. The upper surface of the clamping plate 6 is clamped and connected to the connecting hole 7 through the No. 1 post nail. By providing a retractable shoe plate structure, the distance between the No. 1 shoe plate 1 and the No. 2 shoe plate 2 can be adjusted during use, thereby realizing controllable adjustment of the length of the shoe plate. After determining the length of the shoe plate, the clamping plate 6 can be rotated so that the No. 1 post nail on its upper side is clamped and connected to the connecting hole 7, thereby fixing the length of the complete shoe plate.

[0036] The adjustable sleeve assembly includes four arc blocks 9, which are arranged in a circular array on the upper side of the size 1 shoe plate 1. A connecting leather 8 is fixedly connected between the arc blocks 9 and the upper surface of the side plate 3. An oblique groove 10 is provided inside the arc blocks 9. A size adjustment structure is provided between two adjacent arc blocks 9.

[0037] The size adjustment structure includes a shift track 11, which is fixedly connected to the side of the arc block 9. The end of the shift track 11 passes through and is slidably connected to the oblique groove 10. The outer side of the shift track 11 is evenly provided with a plurality of card slots 12. The side of the outer side of the arc block 9 away from the oblique groove 10 is fixedly connected to a fixed bent rod 15. The side of the outer side of the arc block 9 close to the oblique groove 10 is fixedly connected to a locking leather 13. The outer side of the locking leather 13 is evenly provided with a plurality of perforations 14. The inner side of the locking leather 13 is fixedly connected to a card block. 16, the card block 16 is engaged and connected in the card slot 12, the end of the locking leather 13 is wrapped around the fixed curved rod 15 and is engaged in the through-hole 14 through the second column nail. By setting an adjustable sleeve assembly, the arc block 9 is sleeved on the patient's calf, and then the shift track 11 is pulled to make the arc block 9 close to the patient's calf, and finally the locking leather 13 is pulled so that the column nail on the side of the locking leather 13 is engaged in the through-hole 14. At this time, the card block 16 is engaged and connected in the card slot 12, realizing the fixation of the shift track 11, and then completing the device to bind the patient;

[0038] The lateral resistance assembly includes a lateral correction box 17, which is fixedly connected to the outer side of the arc block 9. A No. 1 fixing plate 18 is slidably connected to the lateral correction box 17. The upper surface of the No. 1 fixing plate 18 is fixedly connected to a No. 1 threaded column 19. The upper surface of the lateral correction box 17 is rotatably connected to a No. 1 nut 20. The No. 1 threaded column 19 passes through the upper surface of the lateral correction box 17 and is threadedly connected to the No. 1 nut 20.

[0039] The lower surface of the No. 1 fixing plate 18 is fixedly connected to the No. 1 monitor, and the lower surface of the No. 1 monitor is fixedly connected to the No. 1 spring 21. The lower end of the No. 1 spring 21 is fixedly connected to a transmission rod 22. The transmission rod 22 is arranged in a "7" shape. The side of the transmission rod 22 is provided with a No. 1 tooth groove 23. The inner side of the lateral correction box 17 is rotatably connected to a gear shaft 24, and the gear shaft 24 is meshed and connected in the No. 1 tooth groove 23.

[0040] A rotating rod is rotatably connected in the lateral correction box 17, and the rotating rod is arranged on the lower side of the gear shaft 24. A fixing seat 28 is fixedly connected to the side of the side plate 3. A transmission plate 25 is rotatably connected in the fixing seat 28. The upper surface of the transmission plate 25 is provided with a No. 2 tooth groove 26. The transmission plate 25 is arranged between the gear shaft 24 and the rotating rod. The lower side of the gear shaft 24 is meshed and connected in the No. 2 tooth groove 26. The upper surface of the transmission plate 25 is provided with a through groove 27. The transmission rod 22 passes through the through groove 27. By setting a lateral resistance component, when the patient performs correction training, force will be applied to the left and right sides, thereby driving the transmission plate 25 to move, so that the transmission plate 25 drives the gear shaft 24 to rotate, and the rotating gear shaft 24 controls the transmission rod 22 to move up and down. During the displacement of the transmission rod 22, the No. 1 spring 21 will be stretched or compressed, thereby realizing resistance training;

[0041] The front resistance assembly includes a front correction box 29, which is fixedly connected to the front side of the arc block 9. A second fixing plate 30 is slidably connected to the front correction box 29, and a second threaded column 31 is fixedly connected to the upper surface of the second fixing plate 30. A second nut 32 is rotatably connected to the upper surface of the front correction box 29, and the second threaded column 31 passes through the upper surface of the front correction box 29. The second threaded column 31 is threadedly connected to the second nut 32. Two second monitors 33 are fixedly connected to the lower surface of the second monitor 33. A second spring 34 is fixedly connected to the lower surface of the second spring 34. The lower end of the second spring 34 is fixedly connected to the bottom plate 35.

[0042] Side grooves 36 are provided on both sides of the front correction box 29, and side blocks 37 are fixedly connected to both side surfaces of the bottom plate 35. The side blocks 37 are arranged in the side grooves 36. The upper surface of the shoe cover 4 is fixedly connected to a fixed cross bar 39. A connecting rod 38 is hinged between the side surfaces of the fixed cross bar 39 and the side surfaces of the side blocks 37. By setting up a front resistance component, when the patient tightens or retracts the instep, the fixed cross bar 39 will drive the connecting rod 38 to move, and then drive the side blocks 37 to push the bottom plate 35, thereby realizing the stretching or compression of the No. 2 spring 34, thereby completing the resistance training of the front correction.

[0043] The working principle of the present invention is as follows:

[0044] By providing a retractable shoe plate structure, the distance between the No. 1 shoe plate 1 and the No. 2 shoe plate 2 can be adjusted during use, thereby realizing controllable adjustment of the length of the shoe plate. After determining the length of the shoe plate, the clamping plate 6 can be rotated so that the No. 1 post nail on its upper side is engaged and connected in the connecting hole 7, thereby fixing the length of the complete shoe plate. By providing an adjustable sleeve assembly, the arc block 9 is sleeved on the patient's calf, and then the shifting track 11 is pulled to make the arc block 9 close to the patient's calf, and finally the locking leather 13 is pulled so that the No. 1 post nail on the side of the locking leather 13 is engaged in the through hole 14. At this time, the clamping block 16 is engaged and connected in the clamping groove 12, thereby realizing the fixation of the shifting track 11, thereby completing the binding of the device to the patient;

[0045] By providing a lateral resistance assembly, when the patient performs correction training, force is applied to the left and right sides, thereby driving the transmission plate 25 to move, thereby driving the gear shaft 24 to rotate by the transmission plate 25, and the rotating gear shaft 24 controls the transmission rod 22 to move up and down. During the movement of the transmission rod 22, the No. 1 spring 21 is stretched or compressed, thereby achieving resistance training;

[0046] By providing a front resistance assembly, when the patient tightens or retracts the instep, the fixed crossbar 39 drives the connecting rod 38 to move, which in turn drives the lateral block 37 to push the bottom plate 35, thereby achieving the extension or compression of the second spring 34, thereby completing the resistance training of the front correction;

[0047] A first fixing plate 18 and a second fixing plate 30 are respectively provided in the lateral correction box 17 and the front correction box 29, and a first threaded column 19 and a second threaded column 31 are respectively provided on the upper surfaces of the first fixing plate 18 and the second fixing plate 30. The first nut 20 and the second nut 32 are used to control the rotation of the first threaded column 19 and the second threaded column 31, thereby adjusting the positions of the first spring 21 and the second spring 34, thereby achieving the purpose of adjusting the resistance during resistance training;

[0048] By connecting monitor No. 1 and monitor No. 2 33 to the upper sides of spring No. 1 21 and spring No. 2 34 respectively, during resistance training, the springs will transmit the reaction force to the monitors, and the monitors will then transmit the resistance size to an external device, thereby monitoring the patient's resistance training status and facilitating subsequent corrective adjustments.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A training mechanism for correcting flat feet in children, characterized in that: The invention comprises a retractable shoe plate structure, wherein the retractable shoe plate structure comprises a first shoe plate (1) and a second shoe plate (2), the upper surface of the first shoe plate (1) is fixedly connected with a side plate (3), the upper surface of the second shoe plate (2) is fixedly connected with a shoe cover (4), and the side surfaces of the first shoe plate (1) and the second shoe plate (2) close to each other are slidably connected with an extension rod (5), the lower surfaces of the first shoe plate (1) and the second shoe plate (2) are both provided with a plurality of connection holes (7), and a clamping plate (6) is provided beside the connection hole (7), and the two clamping plates (6) are respectively rotatably connected to the lower surfaces of the first shoe plate (1) and the second shoe plate (2), and the upper surface of the clamping plate (6) is clamped and connected to the connection hole (7) through a first column nail.

2. The training mechanism for correcting flat feet in children according to claim 1, characterized in that: The invention also includes an adjustable sleeve assembly, wherein the adjustable sleeve assembly includes four arc blocks (9), the four arc blocks (9) are arranged in a ring array on the upper side of the shoe plate (1), a connecting leather (8) is fixedly connected between the arc blocks (9) and the upper surface of the side plate (3), an oblique groove (10) is provided inside the arc blocks (9), and a size adjustment structure is provided between two adjacent arc blocks (9).

3. The training mechanism for correcting flat feet in children according to claim 2, characterized in that: The size adjustment structure includes a shifting crawler (11), the shifting crawler (11) is fixedly connected to the side of the arc block (9), the end of the shifting crawler (11) passes through and is slidably connected to the oblique slot (10), the outer side of the shifting crawler (11) is evenly provided with a plurality of slots (12), the outer side of the arc block (9) away from the oblique slot (10) is fixedly connected to a fixed curved rod (15), the outer side of the arc block (9) close to the oblique slot (10) is fixedly connected to a locking leather (13), the outer side of the locking leather (13) is evenly provided with a plurality of through holes (14), the inner side of the locking leather (13) is fixedly connected to a clamping block (16), the clamping block (16) is meshed and connected to the clamping slot (12), the end of the locking leather (13) surrounds the fixed curved rod (15) and is clamped in the through hole (14) through a No. 2 column nail.

4. The training mechanism for correcting flat feet in children according to claim 2, characterized in that: The invention also includes a lateral resistance component, wherein the lateral resistance component includes a lateral correction box (17), the lateral correction box (17) is fixedly connected to the outer side of the arc block (9), a No. 1 fixed plate (18) is slidably connected in the lateral correction box (17), the upper surface of the No. 1 fixed plate (18) is fixedly connected to a No. 1 threaded column (19), the upper surface of the lateral correction box (17) is rotatably connected to a No. 1 nut (20), the No. 1 threaded column (19) passes through the upper surface of the lateral correction box (17), the No. 1 threaded column (19) is threadedly connected in the No. 1 nut (20), the lower surface of the No. 1 fixed plate (18) is fixedly connected to a No. 1 monitor, the lower surface of the No. 1 monitor is fixedly connected to a No. 1 spring (21), the lower end of the No. 1 spring (21) is fixedly connected to a transmission rod (22), and the transmission rod (2 2) is set in a "7" shape, the side surface of the transmission rod (22) is provided with a first tooth groove (23), the inner side surface of the lateral correction box (17) is rotatably connected with a gear shaft (24), the gear shaft (24) is meshed and connected in the first tooth groove (23), the lateral correction box (17) is rotatably connected with a rotating rod, the rotating rod is set at the lower side of the gear shaft (24), the side surface of the side plate (3) is fixedly connected with a fixing seat (28), the fixing seat (28) is rotatably connected with a transmission plate (25), the upper surface of the transmission plate (25) is provided with a second tooth groove (26), the transmission plate (25) is set between the gear shaft (24) and the rotating rod, the lower side of the gear shaft (24) is meshed and connected in the second tooth groove (26), the upper surface of the transmission plate (25) is provided with a through groove (27), and the transmission rod (22) passes through the through groove (27).

5. The training mechanism for correcting flat feet in children according to claim 2, characterized in that: The front resistance assembly also includes a front correction box (29), the front correction box (29) is fixedly connected to the front side of the arc block (9), a second fixing plate (30) is slidably connected in the front correction box (29), a second threaded column (31) is fixedly connected to the upper surface of the second fixing plate (30), a second nut (32) is rotatably connected to the upper surface of the front correction box (29), the second threaded column (31) passes through the upper surface of the front correction box (29), the second threaded column (31) is threadedly connected to the second nut (32), and the second fixing plate (30) is fixedly connected to the upper surface of the front correction box (29). ) is fixedly connected to the lower surface of two No. 2 monitors (33), the lower surface of the No. 2 monitor (33) is fixedly connected to a No. 2 spring (34), the lower end of the No. 2 spring (34) is fixedly connected to a bottom plate (35), both sides of the front correction box (29) are provided with side grooves (36), both sides of the bottom plate (35) are fixedly connected to side blocks (37), the side blocks (37) are arranged in the side grooves (36), the upper surface of the shoe cover (4) is fixedly connected to a fixed cross bar (39), and a connecting rod (38) is hinged between the side of the fixed cross bar (39) and the side of the side block (37).

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