Adjustable hallux valgus corrector

Abstract

This utility model provides an adjustable hallux valgus corrector, including a toe connection part and a main body connection part. The toe connection part includes an adjustable front frame and a strap, while the main body connection part includes a fixing frame and a strap. The toe connection part is movably fitted onto a column member, which is directly or indirectly rotatably connected to the fixing frame of the main body connection part. The surface formed by the rotation range of the column member is perpendicular to the surface formed by the movement range of the toe connection part. An adjustment mechanism for controlling the tilt angle of the toe connection part is provided between the column member and the toe connection part. This utility model simplifies the adjustment mechanism structure and greatly improves installation efficiency by incorporating an adjustment mechanism between the column member and the toe connection part, reducing both product and labor costs. Furthermore, all parts of the improved adjustment mechanism are made of plastic, preventing individual parts from being easily worn.

Description

Technical Field

[0001] This utility model belongs to the field of orthotics technology, specifically an orthotics for correcting hallux valgus. Background Technology

[0002] The more advanced hallux valgus correctors on the market currently use a knob on children's shoes to tighten the pull cord, thereby correcting hallux valgus. For example, a hallux valgus corrector disclosed in authorization announcement number CN212438973U is used to adjust the angle of the corrector by rotating a knob in the corrective adjustment component to tighten the pull cord. The pull cord is a steel wire rope, and the parts in contact with the pull cord are plastic parts. After long-term friction between the steel wire rope and the plastic parts, the plastic parts will be worn down, causing them to be easily damaged. In addition, the internal structure of this type of adjustment component is complex and the cost is high. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to design an orthodontic device to make the product structure simpler, the lifespan longer, and the cost lower.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable hallux valgus corrector includes a toe connection part and a main body connection part. The toe connection part includes an adjustable front frame and a strap. The main body connection part includes a fixing frame and a strap. The toe connection part is movably fitted onto a column member. The column member is directly or indirectly rotatably connected to the fixing frame of the main body connection part. The surface formed by the rotation range of the column member is perpendicular to the surface formed by the movement range of the toe connection part. An adjustment mechanism for controlling the tilt angle of the toe connection part is provided between the column member and the toe connection part.

[0006] Preferably, both ends of the column are provided with adjustment mechanisms.

[0007] Preferably, the adjustment mechanism includes a toothed structure on the adjustable front frame, a latch on the column, and a driving component. The adjustable front frame is partially fitted onto the column. The toothed structure is located on the inner wall of the adjustable front frame portion at the end of the column. The latch is provided with several elastic locking arms. In a normal state, the elastic locking arms are engaged in the toothed structure inside the adjustable front frame. The driving component is provided with a driving part that drives the elastic locking arms to disengage from the toothed structure.

[0008] Preferably, the toothed structure is a ratchet, and the elastic locking arm is an elastic pawl. When the elastic pawl is engaged with the ratchet of the adjustable front frame, the adjustable front frame can rotate in one direction along the column.

[0009] Preferably, the driving component is a knob, which is movably connected to the column by a fastener. The inner wall of the knob is provided with a protrusion as a driving part. By rotating the knob, the driving part presses against the elastic pawl to disengage the elastic pawl from the ratchet.

[0010] Preferably, the end of the column is provided with an axially extending mounting position, the latch is sleeved outside the mounting position, and an anti-rotation structure is provided between the latch and the mounting position.

[0011] Preferably, the anti-rotation structure is provided with a polygonal structure, a D-shaped structure, or a toothed structure at the mounting position, and corresponding holes and grooves are provided on the latch.

[0012] Preferably, a buckle seat is provided between the column and the fixed frame. The buckle seat is rotatably connected to the fixed frame. The buckle seat is provided with a groove for the column to be embedded. The column is partially embedded in the groove of the buckle seat, and the end of the column protrudes out of the groove of the buckle seat. An adjustable front frame is fitted onto the part of the column that protrudes out of the buckle seat.

[0013] Preferably, the column, the buckle seat, and the fixing frame are connected by fasteners. After connection, the buckle seat can rotate relative to the fixing frame, and the column is provided with a cap to cover the fasteners.

[0014] The beneficial effects of this utility model are: by setting an adjustment mechanism between the column and the toe connection part, the structure of the adjustment mechanism is simpler and the installation efficiency is greatly improved. Both product cost and labor cost are reduced. All parts of the improved adjustment mechanism are made of plastic, which will not cause individual parts to wear easily. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the column member;

[0018] Figure 4 This is a structural diagram of the adjustable front frame;

[0019] Figure 5 This is a schematic diagram of the latch structure;

[0020] Figure 6 This is a schematic diagram of the drive component;

[0021] Figure 7 This is a cross-sectional view of the present invention.

[0022] Explanation of reference numerals in the attached diagram: 1. Lateral pull strap for big toe; 2. Front pull strap; 3. Foot fixing strap; 4. Heel fixing strap; 5. Adjustable front bracket; 6. Fastener; 7. Fixing bracket; 8. Buckle seat; 9. First screw; 10. Second screw; 11. First knob; 12. Second knob; 13. First latch; 14. Second latch; 15. Column; 16. Cap; 17. Drive unit. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please see Figures 1-7The figure shows an adjustable hallux valgus corrector, including a toe connection part and a main body connection part. The toe connection part includes an adjustable front frame 5 and straps. In this embodiment, the straps of the toe connection part include a front pull strap 2 and a big toe lateral pull strap 1, which can prevent the big toe from sliding forward. The main body connection part includes a fixing frame 7 and straps. In this embodiment, the straps of the main body connection part include a foot fixing strap 3 tied to the ball of the foot and a heel fixing strap 4 wrapped around the heel. It is worth noting that the toe connection part is movably fitted onto a column 15. The column 15 is directly or indirectly rotatably connected to the fixing frame 7 of the main body connection part. The surface formed by the rotation range of the column 15 is perpendicular to the surface formed by the movement range of the toe connection part, so that the toes can not only adjust the angle, but also bend normally when walking. An adjustment mechanism for controlling the tilt angle of the toe connection part is provided between the column 15 and the toe connection part. The adjustment mechanism structure described in this embodiment includes a toothed structure on the adjustable front frame 5, a latch on the column 15, and a driving component. In this embodiment, the adjustable front frame 5 has a Z-shaped structure. One end of it connected to the main body has a hollow ring-shaped structure. The hollow ring is fitted onto the column 15, with a portion of the ring fitted onto the column 15. The toothed structure is located on the inner wall of the hollow ring-shaped structure at the end of the column 15. The latch has several elastic locking arms. In the normal state, the elastic locking arms are engaged in the toothed structure inside the adjustable front frame 5. The driving component has a driving part that drives the elastic locking arms to disengage from the toothed structure. In this embodiment, there are three elastic locking arms, which are evenly distributed in a ring. The entire locking mechanism is made of plastic. The elastic locking arm itself is a rod with space on both sides for it to move. Therefore, the elastic locking arm itself has a certain elasticity. When it is pushed by the driving component, it will deform. When the pushing force is stopped, it will automatically reset. After resetting, it will engage with the toothed structure in the adjustable front frame 5 again, thereby preventing the adjustable front frame 5 from rotating automatically. In this embodiment, the toothed structure in the hollow ring-shaped structure of the adjustable front frame 5 fills the entire inner circle of the ring.

[0026] In order for the adjustable front frame 5 to rotate in one direction, the toothed structure is designed as a ratchet in this embodiment, and the elastic locking arm is an elastic pawl. When the elastic pawl is engaged with the ratchet of the adjustable front frame 5, the adjustable front frame 5 can rotate in one direction along the column 15. In this way, after the orthosis is put on, the adjustable front frame 5 can be pulled inward to tighten the big toe, achieving the purpose of easy adjustment. After adjustment, it can be automatically locked.

[0027] In this embodiment, the driving component is a knob. The knob is movably connected to the column 15 by a screw. The inner wall of the knob is provided with a protrusion as the driving part 17. By rotating the knob, the driving part presses against the elastic pawl to disengage the elastic pawl from the ratchet. Designing the driving component as a knob makes adjustment more convenient and faster. The knob is also made of plastic. The driving part and the knob are an integral structure.

[0028] In this embodiment, the connection structure between the latch and the column 15 is such that an axially extending mounting position is provided at the end of the column 15, the latch is sleeved outside the mounting position, and an anti-rotation structure is provided between the latch and the mounting position. The anti-rotation structure is a polygonal structure, a D-shaped structure, or a toothed structure provided on the mounting position, and a corresponding hole groove is provided on the latch. In this embodiment, the anti-rotation structure adopts an approximately triangular structure.

[0029] In this embodiment, adjustment mechanisms are provided at both ends of the column member 15. Two hollow rings are arranged parallel to each other at the end of the adjustable front frame, with a hollow space between the two rings. The two ends of the column member 15 are respectively inserted into the two rings. The two ends of the column member 15 are symmetrically provided with a first latch 13, a second latch 14, a first knob 11, a second knob 12, a first screw 9, and a second screw 10.

[0030] In this embodiment, a snap-fit ​​seat 8 is provided between the column member 15 and the fixed frame 7. The snap-fit ​​seat 8 is rotatably connected to the fixed frame 7. The snap-fit ​​seat 8 has a groove for the column member 15 to be embedded in. The column member 15 is partially embedded in the groove of the snap-fit ​​seat 8, and the end of the column member 15 protrudes out of the groove of the snap-fit ​​seat 8. An adjustable front frame 5 is sleeved on the part of the column member 15 that protrudes out of the snap-fit ​​seat 8. In this embodiment, an annular protrusion is provided on the end face of the snap-fit ​​seat 8 connected to the fixed frame 7. An annular groove is provided on the corresponding fixed frame 7 for the annular protrusion to be engaged. The annular protrusion is engaged in the annular groove, and then the column member 15, the snap-fit ​​seat 8, and the fixed frame 7 are connected by fasteners 6. After connection, the snap-fit ​​seat 8 can rotate relative to the fixed frame 7. In this way, the annular protrusion and the annular groove mainly play a load-bearing role, and the fasteners 6 only need to connect the three, effectively preventing the fasteners 6 from loosening. In order to make the product more aesthetically pleasing, this embodiment has a cap 16 on the column member 15 to cover the fasteners 6.

Claims

1. An adjustable hallux valgus corrector, comprising a toe connection part and a main body connection part, the toe connection part including an adjustable front frame and straps, the main body connection part including a fixing frame and straps, the toe connection part being movably fitted onto a post, the post being directly or indirectly rotatably connected to the fixing frame of the main body connection part, the surface formed by the rotation range of the post being perpendicular to the surface formed by the movement range of the toe connection part, and an adjustment mechanism for controlling the tilt angle of the toe connection part being provided between the post and the toe connection part, characterized in that: The adjustment mechanism includes a toothed structure on the adjustable front frame, a latch on the column, and a drive component. The adjustable front frame is partially fitted onto the column. The toothed structure is located on the inner wall of the adjustable front frame portion at the end of the column. The latch has several elastic locking arms. In the normal state, the elastic locking arms are engaged in the toothed structure inside the adjustable front frame. The drive component has a drive part that drives the elastic locking arms to disengage from the toothed structure.

2. The adjustable hallux valgus corrector as described in claim 1, characterized in that: The column is equipped with adjustment mechanisms at both ends.

3. The adjustable hallux valgus corrector as described in claim 1, characterized in that: The toothed structure is a ratchet, and the elastic locking arm is an elastic pawl. When the elastic pawl is engaged with the ratchet of the adjustable front frame, the adjustable front frame can rotate in one direction along the column.

4. The adjustable hallux valgus corrector as described in claim 3, characterized in that: The driving component is a knob, which is movably connected to the column through fasteners. The inner wall of the knob is provided with a protrusion as a driving part. By rotating the knob, the driving part presses against the elastic pawl, thereby disengaging the elastic pawl from the ratchet.

5. The adjustable hallux valgus corrector as described in claim 3, characterized in that: The end of the column is provided with an axially extending mounting position, the latch is sleeved outside the mounting position, and an anti-rotation structure is provided between the latch and the mounting position.

6. The adjustable hallux valgus corrector as described in claim 5, characterized in that: The anti-rotation structure is provided with a polygonal structure, a D-shaped structure, or a toothed structure at the mounting position, and corresponding holes and grooves are provided on the latch.

7. The adjustable hallux valgus corrector as described in claim 1, characterized in that: A snap-fit ​​seat is provided between the column and the fixed frame. The snap-fit ​​seat is rotatably connected to the fixed frame. The snap-fit ​​seat has a groove for the column to be embedded in. The column is partially embedded in the groove of the snap-fit ​​seat, and the end of the column protrudes out of the groove of the snap-fit ​​seat. An adjustable front frame is fitted onto the part of the column that protrudes out of the snap-fit ​​seat.

8. The adjustable hallux valgus corrector as described in claim 7, characterized in that: The column, buckle seat, and fixing frame are connected by fasteners. After connection, the buckle seat can rotate relative to the fixing frame. The column is provided with a cap to cover the fasteners.

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