External frame body for foot rehabilitation

Abstract

The application belongs to the technical field of rehabilitation aids, and particularly relates to an external frame body for foot rehabilitation. The structure of the external frame body comprises a foot support plate, a foot side plate, a calf pad fitting plate and a leg side plate, further comprises a mounting column arranged on the foot side plate, a positioning stud arranged on the leg side plate, a perforated positioning plate unit arranged on the mounting column and used for sleeving the positioning stud, a fastening nut arranged on the positioning stud and used for limiting the perforated positioning plate unit, and an anti-falling frame unit arranged on the perforated positioning plate unit and used for blocking the fastening nut. The application has the multiple advantages of simple structure, convenient operation and sufficient fixing strength after positioning.

Description

Technical Field

[0001] This application belongs to the field of rehabilitation braces technology, and in particular relates to an external frame for foot rehabilitation. Background Technology

[0002] Commonly used external frames for foot rehabilitation mainly consist of foot guards, leg guards, foot fixation straps, leg fixation straps, and fixing connectors. Generally, the main function of these external frames is to provide adequate protection for the ankle area during rehabilitation walking, preventing excessive stretching or compression of the ankle.

[0003] Accordingly, the aforementioned fixing connector is a fully positioning type, that is, after the relative position of the foot guard and the leg guard is determined, the fixing connector needs to completely position the relative position, so that the foot guard cannot rotate significantly closer to the leg guard, nor can it rotate significantly away from the leg guard.

[0004] In this way, the external frame can fully and appropriately protect the foot, especially the ankle, during rehabilitation exercises.

[0005] For example, Chinese utility model patent with authorization announcement number CN217697009U and authorization announcement date of 2022.11.01 discloses a foot protector bracket, whose structure mainly includes: a shaping plate, a connecting strip, an adjusting component, a locking component, a strap, a sprocket, and a chain.

[0006] The main advantages of the foot support bracket in this utility model patent are: the bending angle of the calf plate and the foot plate can be adjusted to meet the needs of the user, and the adjustment can be fixed by locking the adjustment component after adjustment.

[0007] However, in actual use, this foot support bracket has at least the following impractical problems: its adjustment and locking components have relatively complex structures, including many complex parts such as sprockets and chains, resulting in relatively high usage and maintenance costs. The establishment and release of the above-mentioned fixing effect are also relatively complicated and difficult to operate. Utility Model Content

[0008] This application provides an external frame for foot rehabilitation, and the technical problem it aims to solve is: how to make the angle fixing function of the external frame for foot rehabilitation simpler, more convenient, economical and practical.

[0009] The technical solution adopted by this application to solve the above problems is: an external frame for foot rehabilitation, the structure of which includes a foot support plate, a foot side plate, a calf fitting plate, and a leg side plate, and further includes a mounting post disposed on the foot side plate, a positioning stud disposed on the leg side plate, a perforated positioning plate unit disposed on the mounting post and used to fit the positioning stud, a fastening nut disposed on the positioning stud and used to limit the perforated positioning plate unit, and an anti-fall-off frame unit disposed on the perforated positioning plate unit and used to block the fastening nut.

[0010] A further preferred technical solution is that the perforated positioning plate unit includes a connecting plate disposed on the mounting post, and a plurality of adjustment positioning holes disposed on the connecting plate and used to pass through the positioning stud.

[0011] A further preferred technical solution is that the perforated positioning plate unit further includes a nut-positioning fixing screw disposed on the connecting plate and used to install the fastening nut before the positioning stud is connected to the fastening nut.

[0012] A further preferred technical solution is that the perforated positioning plate unit further includes a pulling rod disposed on the screw for fixing the nut in the waiting position state, and used to selectively engage with the adjusting positioning hole on the positioning stud.

[0013] A further preferred technical solution is that the perforated positioning plate unit further includes a positioning groove disposed on the side plate of the connecting plate and used for relative rotation to separate the foot support plate and the calf fitting plate by engaging the positioning stud.

[0014] A further preferred technical solution is that the anti-fall-off frame unit includes an elastic rubber sheet disposed on the connecting plate, a side plate disposed on the elastic rubber sheet and used to block the fastening nut, and an end plate disposed on the side plate and used to block the fastening nut.

[0015] A further preferred technical solution is that the number of the adjustment positioning holes is 3-6.

[0016] A further preferred technical solution is that: one end of the screw for fixing the nut in its ready-to-position state is disposed on the connecting plate, and the distance between the other end of the screw for fixing the nut in its ready-to-position state and the side plate is less than the thickness of the fastening nut.

[0017] A further preferred technical solution is that all the adjustment positioning holes are located between the end plate and the screw for fixing the nut in its ready-to-position state.

[0018] A further preferred technical solution is that the end plate is also disposed on the elastic rubber sheet.

[0019] The beneficial effects of this application include at least the following three points.

[0020] First, the adjustment and positioning component for the expansion range between the foot support plate and the calf support plate in this external frame has multiple advantages, including relatively simple structure, convenient operation and use, and sufficient fixing strength after positioning.

[0021] Secondly, the aforementioned adjustment and positioning components have the advantage of adjustable deployment range in multiple increments; Third, the fastening nuts are not easily loosened or lost before or after use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this application.

[0023] Figure 2 This is a schematic diagram showing the positions of the mounting post and the positioning stud in this application.

[0024] Figure 3 This is a schematic diagram of the insertion method of the positioning stud on the perforated positioning plate unit in this application.

[0025] Figure 4 This is a schematic diagram of the location and structure of the anti-fall-off frame unit in this application.

[0026] Figure 5 This is a schematic diagram of one possible location of the end plate in this application.

[0027] Figure 6 This is a schematic diagram showing the position and shape of the lever used for pulling in this application.

[0028] Figure 7 This is a schematic diagram illustrating the usage of the positioning groove for putting on and taking off clothes in this application.

[0029] Figure 8 This is a schematic diagram showing the donning and detachment states of the external frame in this application.

[0030] The meanings of the markings in the diagram are as follows: Foot support plate 11, foot side plate 12, calf support plate 13, leg side plate 14; Mounting column 1, positioning stud 2, positioning plate unit with holes 3, fastening nut 4, anti-fall frame unit 5; 301 connecting plate, 302 positioning hole for adjustment, 303 screw for fixing nut in standby position, 304 pulling rod, 305 positioning groove for insertion and removal, and 306 mounting hole; Elastic rubber sheet 501, side plate 502, end plate 503. Detailed Implementation

[0031] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0032] like Figures 1-8 As shown, an external frame for foot rehabilitation includes a foot support plate 11, a foot side plate 12, a calf support plate 13, and a leg side plate 14. It also includes a mounting post 1 on the foot side plate 12, a positioning stud 2 on the leg side plate 14, a perforated positioning plate unit 3 on the mounting post 1 for fitting the positioning stud 2, a fastening nut 4 on the positioning stud 2 for limiting the position of the perforated positioning plate unit 3, and an anti-fall-off frame unit 5 on the perforated positioning plate unit 3 for blocking the fastening nut 4.

[0033] In this embodiment, the foot support plate 11, foot side plate 12, calf support plate 13, and leg side plate 14 are manufactured using a one-piece molding process and are made of engineering plastic or hard rubber with relatively low elasticity. The foot support plate 11 and foot side plate 12 form an upward-facing foot assembly, and the calf support plate 13 and leg side plate 14 form a forward-facing leg assembly. The terms "upward" and "forward" are defined as follows: when a user wearing the external frame for rehabilitation exercises wears the external frame, the user's instep faces upward and the calf faces backward; the opposite of "downward" and "forward" are respectively.

[0034] The aforementioned adjustment and positioning components include: the mounting post 1, the positioning stud 2, the positioning plate unit with holes 3, the fastening nut 4, and the anti-fall-off frame unit 5. The external frame comprises two such adjustment and positioning components, one on the left and one on the right.

[0035] The general usage of this adjustment and positioning component is as follows.

[0036] First, the perforated positioning plate unit 3 and the leg side plate 14 are separated in the left and right directions, so that the positioning stud 2 is separated from the perforated positioning plate unit 3. At this time, the non-installation end of the perforated positioning plate unit 3 is slightly bent and deformed to both sides.

[0037] Second, tilt the perforated positioning plate unit 3 upward and backward until the user's feet are lifted to a suitable degree. At this time, insert the perforated positioning plate unit 3 and the positioning stud 2, and then tighten the fastening nut 4 on the positioning stud 2 to complete the adjustment and tightening operation. During this process, the anti-fall frame unit 5 is manually pushed outward and pushed aside to provide operating space for the fastening nut 4. After the fastening nut 4 is tightened, the user's hand is retracted, and the anti-fall frame unit 5 can rely on its own elasticity to press back onto the positioning stud 2 and the perforated positioning plate unit 3.

[0038] Although the anti-fall-off frame unit 5 cannot prevent the fastening nut 4 from loosening on the positioning stud 2 and the perforated positioning plate unit 3, it can appropriately prevent it from falling off and being lost on the positioning stud 2 and the perforated positioning plate unit 3.

[0039] Third, after the foot rehabilitation exercise is completed, the external frame needs to be removed. At this time, first manually push and pry open the anti-fall frame unit 5, then unscrew the fastening nut 4, then separate the positioning stud 2 and the perforated positioning plate unit 3, and finally retract your hand upwards, leaving the fastening nut 4 on the perforated positioning plate unit 3 or the anti-fall frame unit 5.

[0040] The reason why this adjustment and positioning component has the advantages of simple and convenient operation and overall economic practicality is: Firstly, the entire above-mentioned method of use can be completed with one hand. For example, the index finger and thumb are used to rotate the fastening nut 4, and the other three fingers or the hypothenar eminence of the palm are used to temporarily push the anti-falling frame unit 5 outward. Secondly, the structure of this component does not include complex parts such as sprockets and chains, thereby reducing the overall cost of use and maintenance of the external frame, which has the advantages of being economical and practical.

[0041] The mounting post 1 can be a rivet, the positioning stud 2 and the fastening nut 4 are metal parts, the perforated positioning plate unit 3 is a rigid plastic part, and the anti-falling frame unit 5 is made of elastic rubber.

[0042] In addition, the perforated positioning plate unit 3 provides multiple insertion positioning holes for the fastening nut 4, making the expansion range between the foot support plate 11 and the calf support plate 13 adjustable, and the adjustment will not change during use. This allows the perforated positioning plate unit 3 to provide tensile and compressive resistance as needed, thereby appropriately distributing the force intensity on the user's ankle and playing an auxiliary protective role in foot rehabilitation exercises.

[0043] Finally, the main functions of the anti-fall-off frame unit 5 include: First, the relatively sharp positioning stud 2 is covered to prevent users from bumping or hitting it. Secondly, efforts should be made to prevent the fastening nut 4 from falling off or being lost. This prevention of falling off or being lost can be further divided into two parts: To prevent the fastening nut 4 from falling off the positioning stud 2, and when the fastening nut 4 has already fallen off the positioning stud 2, to prevent the fastening nut 4 from falling off and being lost from the anti-falling frame unit 5. If the frame is in use at this time, the user or medical staff need to retighten the fastening nut 4 as soon as possible.

[0044] The perforated positioning plate unit 3 includes a connecting plate 301 disposed on the mounting post 1, and a plurality of adjusting positioning holes 302 disposed on the connecting plate 301 and used to pass through the positioning stud 2.

[0045] In this embodiment, the connecting plate 301 is rectangular in shape, with a single mounting hole 306 and a row of adjustment positioning holes 302 located at both ends of the connecting plate 301.

[0046] In addition, the height of the mounting post 1 is lower than that of the positioning stud 2, and the connecting plate 301 is tilted when in normal use, that is, the end of it with the adjustment positioning hole 302 is relatively higher, and the perforated positioning plate unit 3 exerts force backward and upward when tightened.

[0047] Generally, when the external frame is in normal use, the foot support plate 11 and the calf support plate 13 form an L-shaped structure with an angle of 80-100°.

[0048] The perforated positioning plate unit 3 also includes a screw 303 disposed on the connecting plate 301 and used to install the fastening nut 4 in a fixed position before the fastening nut 4 is connected to the positioning stud 2.

[0049] In this embodiment, the nominal diameter of the screw 303 for fixing the nut in its standby position is the same as that of the fastening nut 4, and both are adapted to the fastening nut 4. When the external frame is in use, the fastening nut 4 is screwed onto the screw 303 for fixing the nut in its standby position, and appropriately clamps the connecting plate 301.

[0050] When the external frame is in use, the fastening nut 4 is screwed onto the positioning stud 2 and fully clamps the connecting plate 301.

[0051] The perforated positioning plate unit 3 also includes a pulling rod 304 disposed on the nut waiting position fixing screw 303 and used to selectively engage with the adjusting positioning hole 302 on the positioning stud 2.

[0052] In this embodiment, the pulling rod 304 is the force-applying part for tightening the connecting plate 301. The user can place their index and middle fingers on the pulling rod 304 to pull the entire connecting plate 301 backward and upward, thereby aligning it with one of the adjustment positioning holes 302 and the positioning stud 2.

[0053] Furthermore, the pulling rod 304 does not affect the temporary nut-fixing function of the nut-fixing screw 303. The central axes of the pulling rod 304 and the nut-fixing screw 303 coincide, and the diameter of the former is smaller than that of the latter.

[0054] The perforated positioning plate unit 3 also includes a positioning groove 305 disposed on the side plate of the connecting plate 301 and used for relative rotation to separate the foot support plate 11 and the calf fitting plate 13 by engaging the positioning stud 2.

[0055] In this embodiment, if the angle between the foot support plate 11 and the calf contact plate 13 is still relatively small at 80-100° when putting on or taking off the external frame, the putting on or taking off operation will be relatively difficult.

[0056] Therefore, when the positioning stud 2 engages with the insertion and removal positioning groove 305, the aforementioned clamping angle can be set to, for example, 120°, so that the external frame is fully extended, making it convenient for the user to insert and remove their feet.

[0057] Correspondingly, in the length direction of the connecting plate 301, the insertion / removal positioning groove 305 is further away from the mounting hole 306 than all the adjustment positioning holes 302.

[0058] The positioning groove 305 for putting on and taking off the garment is an arc-shaped groove, which can be located on either the upper or lower edge of the connecting plate 301, as shown in the attached figure. Figure 7 As shown, it is set on the bottom edge.

[0059] The anti-fall-off frame unit 5 includes an elastic rubber sheet 501 disposed on the connecting plate 301, a side plate 502 disposed on the elastic rubber sheet 501 and used to block the fastening nut 4, and an end plate 503 disposed on the side plate 502 and used to block the fastening nut 4.

[0060] In this embodiment, the side plate 502 and the end plate 503 are integrally formed, and the overall shape is L-shaped. The function of the elastic rubber sheet 501 is to make the distance between the side plate 502 and the end face of the positioning stud 2 and the nut-fixing screw 303 adjustable, thereby allowing the fastening nut 4 to be installed and removed from the positioning stud 2 and the nut-fixing screw 303.

[0061] Specifically, the side plate 502 is generally parallel to the connecting plate 301. The distance between its side and the end face of the nut-fixing screw 303 and the end face of the fully tightened positioning stud 2 is relatively small, for example, set to ≤1cm. This ensures that even if the fastening nut 4 is completely loosened on the nut-fixing screw 303 and the positioning stud 2, it is not easy for it to fall onto the elastic rubber sheet 501, and it is even less likely to fall onto the elastic rubber sheet 501 and be lost.

[0062] Accordingly, the word "anti-falling" in the anti-falling frame unit 5 has the following two meanings: First, to prevent the fastening nut 4 from falling off the screw 303 and the positioning stud 2 in the nut waiting position, the side plate 502 is made to be sufficiently and appropriately close to the connecting plate 301. Secondly, to prevent the fastening nut 4 from falling off the entire external frame, the end plate 503 is located at the lower end of the frame. The connecting plate 301, elastic rubber sheet 501, side plate 502, and end plate 503 form a groove structure with only an opening at the top at this lower end position, making it difficult for the fastening nut 4 to fall off after passing over this groove structure.

[0063] Correspondingly, the end plate 503 is located at the lower end of the side plate 502, and the gap between it and the elastic rubber sheet 501 and the connecting plate 301 is relatively small, so that the fastening nut 4 is not easily missed.

[0064] The number of the adjustment positioning holes 302 is 3-6.

[0065] In this embodiment, the adjustment positioning hole 302 furthest from the mounting hole 306 corresponds to the most tightened state of the external frame. At this time, the angle between the foot support plate 11 and the calf contact plate 13 is, for example, 80°.

[0066] One end of the screw 303 for fixing the nut in its ready-to-position state is disposed on the connecting plate 301, and the distance between the other end of the screw 303 for fixing the nut in its ready-to-position state and the side plate 502 is less than the thickness of the fastening nut 4.

[0067] In this embodiment, when the anti-fall-off frame unit 5 is not pushed open to both sides, the side plate 502 can directly press against the non-installation end face of the nut-positioning fixing screw 303. If the nut-positioning fixing screw 303 is provided with the pulling rod 304, then it presses against the end face of the pulling rod 304.

[0068] All the adjustment positioning holes 302 are located between the end plate 503 and the screw 303 for fixing the nut in its ready position.

[0069] In this embodiment, the anti-falling frame unit 5, which forms an anti-falling function for receiving the loosened fastening nut 4, is effective for the fastening nut 4 in all correct use states and in standby states.

[0070] The end plate 503 is also disposed on the elastic rubber sheet 501.

[0071] In this embodiment, after the end plate 503 is connected to the elastic rubber sheet 501, the lower end provides a more comprehensive effect in preventing the fastening nut 4 from falling off. Correspondingly, the side plate 502 requires more force to be pushed open to both sides, but this does not affect the normal screwing-on and screwing-off operation of the fastening nut 4.

[0072] Finally, it should be noted that the word "used" above means that it can be used, not only used for. For example, this external frame can also be used for leg rehabilitation. Furthermore, various binding structures can be set on the foot side plate 12 and leg side plate 14 as needed to form a complete "boot-shaped" structure.

[0073] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. An external frame for foot rehabilitation, comprising a foot support plate (11), a foot side plate (12), a calf support plate (13), and a leg side plate (14), characterized in that: It also includes a mounting post (1) on the foot side plate (12), a positioning stud (2) on the leg side plate (14), a perforated positioning plate unit (3) on the mounting post (1) and used to fit the positioning stud (2), a fastening nut (4) on the positioning stud (2) and used to limit the perforated positioning plate unit (3), and an anti-fall-off frame unit (5) on the perforated positioning plate unit (3) and used to block the fastening nut (4).

2. The external frame for foot rehabilitation according to claim 1, characterized in that: The perforated positioning plate unit (3) includes a connecting plate (301) disposed on the mounting post (1) and a plurality of adjusting positioning holes (302) disposed on the connecting plate (301) and used to pass through the positioning stud (2).

3. The external frame for foot rehabilitation according to claim 2, characterized in that: The perforated positioning plate unit (3) also includes a nut-positioning screw (303) disposed on the connecting plate (301) and used to install the fastening nut (4) before the positioning stud (2) is connected to the fastening nut (4).

4. An external frame for foot rehabilitation according to claim 3, characterized in that: The perforated positioning plate unit (3) further includes a pulling rod (304) disposed on the nut waiting position fixing screw (303) and used to selectively connect to the adjusting positioning hole (302) on the positioning stud (2).

5. An external frame for foot rehabilitation according to claim 2, characterized in that: The perforated positioning plate unit (3) also includes a positioning groove (305) provided on the side plate of the connecting plate (301) and used for relative rotation to separate the foot support plate (11) and the calf fitting plate (13) by engaging the positioning stud (2).

6. An external frame for foot rehabilitation according to claim 3, characterized in that: The anti-fall-off frame unit (5) includes an elastic rubber sheet (501) disposed on the connecting plate (301), a side plate (502) disposed on the elastic rubber sheet (501) and used to block the fastening nut (4), and an end plate (503) disposed on the side plate (502) and used to block the fastening nut (4).

7. An external frame for foot rehabilitation according to claim 2, characterized in that: The number of the adjustment positioning holes (302) is 3-6.

8. An external frame for foot rehabilitation according to claim 6, characterized in that: One end of the screw (303) for fixing the nut in the ready-to-position state is disposed on the connecting plate (301), and the distance between the other end of the screw (303) for fixing the nut in the ready-to-position state and the side plate (502) is less than the thickness of the fastening nut (4).

9. An external frame for foot rehabilitation according to claim 6, characterized in that: All the adjustment positioning holes (302) are located between the end plate (503) and the screw (303) for fixing the nut in the waiting position.

10. An external frame for foot rehabilitation according to claim 6, characterized in that: The end plate (503) is also disposed on the elastic rubber sheet (501).

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