Locking and limiting multifunctional ankle hinge

Abstract

The utility model relates to the technical field of ankle hinges, in particular to a locking and limiting multifunctional ankle hinge which comprises a hinge connecting main piece, a first connecting hole is formed in the upper surface of the hinge connecting main piece, and a first hinge connecting auxiliary piece is arranged above the hinge connecting main piece. Through cooperation of the countersunk head screw and the countersunk head nut, the first hinge connecting auxiliary piece and the second hinge connecting auxiliary piece can be disassembled and assembled, the size and the weight can be reduced, meanwhile, by means of the stepped groove and the brake bolt, the position of the brake bolt can be adjusted, and the brake bolt is convenient to disassemble and assemble. Meanwhile, a brake bolt is matched with a semicircular groove to position and freely rotate a second hinge connecting auxiliary piece, the first hinge connecting auxiliary piece can rotate in an interval limiting mode and freely rotate through cooperation of the brake bolt and an arc-shaped groove, and then free combination according to the requirements of the child patient is achieved; and different requirements of ankle joint motion ranges are met, and functions of locking limiting, free movement and interval limiting are switched.

Description

Technical Field

[0001] The present application relates to the technical field of ankle hinges, and in particular to a locking and limiting multifunctional ankle hinge. Background Art

[0002] At present, ankle-foot orthoses are the most commonly used type of orthoses, especially for patients with neuromuscular diseases accompanied by lower limb deformities or abnormal gait. During rehabilitation treatment, the requirements for joint range of motion also change accordingly due to changes in the condition, rehabilitation exercise needs or different daily life scenarios. When patients need to improve standing stability, ankle joint braking is required; when maintaining squatting stability, the ankle joint needs to be restricted to a certain dorsiflexion range; when it is necessary to exercise the ankle plantar flexion and dorsiflexion function, the ankle joint movement angle needs to be unrestricted.

[0003] At present, pediatric patients need active joints with different functions in different rehabilitation stages. There are relatively few types of ankle hinges available for pediatric patients on the current market, and their functions are relatively simple and their weight is relatively heavy. Not only are the angles of motion limited, but it is also inconvenient to switch between the range of motion and the free motion state. Therefore, a locking and limiting multifunctional ankle hinge is proposed. Utility Model Content

[0004] In order to meet the functional requirements of locking and limiting, free movement, and interval limiting movement, the present application provides a locking and limiting multifunctional ankle hinge.

[0005] A locking and limiting multifunctional ankle hinge provided in the present application adopts the following technical scheme: a locking and limiting multifunctional ankle hinge, comprising a hinge connection main plate, the upper surface of which is provided with a first connecting hole, a first hinge connection sub-plate is provided above the hinge connection main plate, a second hinge connection sub-plate is provided above the first hinge connection sub-plate, second connecting holes are provided on the upper surface of the first hinge connection sub-plate and the upper surface of the second hinge connection sub-plate, an arc groove is provided on the upper surface of the first hinge connection sub-plate, a semicircular groove is provided on the upper surface of the second hinge connection sub-plate, a countersunk nut is provided inside one of the second connecting holes, a countersunk screw is provided inside the first connecting hole, the countersunk screw is threadedly connected to the countersunk nut, a step groove is provided on the upper surface of the hinge connection main plate, a brake bolt is slidably connected to the inner wall of the step groove, and the top of the brake bolt extends to the inside of the arc groove.

[0006] Optionally, two groups of slots are provided on the upper surface of the hinge-connected main plate, and a ball is rotatably connected to the inner wall of each slot.

[0007] Optionally, the brake tumbler is made of rubber material, and the semicircular groove is adapted to the brake tumbler.

[0008] Optionally, the front side and the back side of the first hinge-connected sub-piece and the front side and the back side of the second hinge-connected sub-piece are fixedly connected with a first anti-slip strip, and the front side and the back side of the hinge-connected main piece are fixedly connected with a second anti-slip strip.

[0009] Optionally, the upper surface of the first hinge-connected sub-piece and the upper surface of the second hinge-connected sub-piece are each provided with two first through holes, and the upper surface of the hinge-connected main piece is provided with two second through holes.

[0010] Optionally, a U-shaped bar is fixedly connected to the upper surface of the hinge-connected main piece, and the U-shaped bar is located directly above the step groove.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] 1. The utility model can disassemble and assemble the first hinge connecting sub-piece and the second hinge connecting sub-piece by means of the cooperation of the countersunk screw and the countersunk nut, thereby reducing the volume and weight. At the same time, the step groove and the brake bolt are used to adjust the position of the brake bolt. At the same time, the brake bolt cooperates with the semicircular groove to position and freely rotate the second hinge connecting sub-piece. In addition, the cooperation of the brake bolt and the arc groove can make the first hinge connecting sub-piece able to rotate within a limited range and rotate freely, thereby realizing free combination according to the needs of pediatric patients and meeting the different needs of ankle joint activity to perform locking limit, free movement, and interval limit function conversion.

[0013] 2. The brake tumbler of the utility model adopts rubber material, so that the friction force of the brake tumbler can rub against the step groove to prevent the brake tumbler from moving, and in the process of free rotation, the first hinge connection sub-piece and the second hinge connection sub-piece can be supported through the cooperation of the slot and the ball, to prevent the first hinge connection sub-piece and the second hinge connection sub-piece from rubbing against the hinge connection main piece during rotation, thereby increasing the service life of the first hinge connection sub-piece, the second hinge connection sub-piece and the hinge connection main piece, and the first anti-slip strip and the second anti-slip strip can be used to increase the surface friction of the first hinge connection sub-piece and the second hinge connection sub-piece to facilitate picking up. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of a side sectional view in an embodiment of the present application;

[0016] Figure 3 is a schematic diagram of the three-dimensional structure of the first hinge-connected sub-piece in the embodiment of the present application;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the front cross-section view in the embodiment of the present application.

[0018] Figure numerals: 1. first hinge connecting sub-piece; 2. countersunk nut; 3. arc groove; 4. hinge connecting main piece; 5. second hinge connecting sub-piece; 6. first through hole; 7. first anti-slip strip; 8. second connecting hole; 9. semicircular groove; 10. brake bolt; 11. U-shaped strip; 12. second through hole; 13. second anti-slip strip; 14. ball bearing; 15. slot; 16. stepped groove; 17. first connecting hole; 18. countersunk screw. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application discloses a locking and limiting multifunctional ankle hinge. Figure 1 As shown, a locking and limiting multifunctional ankle hinge comprises a hinge-connected main piece 4, the upper surface of which is provided with a first connecting hole 17, a first hinge-connected sub-piece 1 is provided above the hinge-connected main piece 4, a second hinge-connected sub-piece 5 is provided above the first hinge-connected sub-piece 1, two first through holes 6 are provided on the upper surface of the first hinge-connected sub-piece 1 and the upper surface of the second hinge-connected sub-piece 5, two second through holes 12 are provided on the front surface of the hinge-connected main piece 4 and the upper surface of the hinge-connected main piece 4, and the first through holes 6 and the second through holes 12 can be easily connected with other mechanisms by providing the first through holes 6 and the second through holes 12, so as to facilitate the installation of the device, and second connecting holes 8 are provided on the upper surface of the first hinge-connected sub-piece 1 and the upper surface of the second hinge-connected sub-piece 5;

[0021] An arc groove 3 is provided on the upper surface of the first hinge connecting sub-piece 1, and a semicircular groove 9 is provided on the upper surface of the second hinge connecting sub-piece 5. A countersunk nut 2 is provided inside one of the second connecting holes 8, and a countersunk screw 18 is provided inside the first connecting hole 17. The countersunk screw 18 is threadedly connected to the countersunk nut 2. A step groove 16 is provided on the upper surface of the hinge connecting main piece 4. A brake bolt 10 is slidably connected to the inner wall of the step groove 16. The top of the brake bolt 10 extends to the inside of the arc groove 3. A U-shaped bar 11 is fixedly connected to the upper surface of the hinge connecting main piece 4. The U-shaped bar 11 is located directly above the step groove 16. The brake bolt 10 can be limited by the U-shaped bar 11 to prevent the brake bolt 10 from tilting and bending.

[0022] See also Figure 1 , Figure 3 and Figure 4 The brake tumbler 10 is made of rubber material, and the semicircular groove 9 is matched with the brake tumbler 10. By setting the brake tumbler 10 and the semicircular groove 9 to be matched, the brake tumbler 10 can position the semicircular groove 9 to avoid misalignment during use.

[0023] See also Figure 1 , Figure 2 and Figure 3 Two groups of slots 15 are provided on the upper surface of the hinge-connected main piece 4, and the inner wall of each slot 15 is rotatably connected with a ball 14. The slots 15 and the ball 14 enable the ball 14 to rotate, and the ball 14 can protect the hinge-connected main piece 4 during the rotation of the first hinge-connected secondary piece 1 to prevent the rotation from causing friction between the hinge-connected main piece 4 and the first hinge-connected secondary piece 1, thereby affecting the service life of the hinge-connected main piece 4 and the first hinge-connected secondary piece 1.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The front and back sides of the first hinge-connected sub-piece 1 and the front and back sides of the second hinge-connected sub-piece 5 and the second hinge-connected sub-piece 5 are fixedly connected with a first anti-slip strip 7, and the front and back sides of the hinge-connected main piece 4 and the hinge-connected main piece 4 are fixedly connected with a second anti-slip strip 13. The cooperation of the first anti-slip strip 13 and the second anti-slip strip 7 can facilitate the operator to hold the parts for assembly, preventing the hands from slipping during assembly and causing the parts to fall. At the same time, the first hinge-connected sub-piece 1 and the second hinge-connected sub-piece 5 can be protected to prevent the sides from being hit.

[0025] The implementation principle of the locking and limiting multifunctional ankle hinge of the embodiment of the present application is as follows: when in use, the brake tumbler 10 can be pushed to make the brake tumbler 10 slide inside the stepped groove 16, and the first hinge connecting sub-piece 1 can be limited by cooperating with the arc groove 3 to limit the range of motion of the first hinge connecting sub-piece 1, and the brake tumbler 10 can be moved out of the arc groove 3 to release the restriction on the first hinge connecting sub-piece 1, so that the first hinge connecting sub-piece 1 can rotate freely;

[0026] By turning the countersunk screw 18, the countersunk screw 18 can be separated from the countersunk nut 2, the first hinge connecting sub-piece 1 can be disassembled, and then the second hinge connecting sub-piece 5 can be assembled through the countersunk screw 18 and the countersunk nut 2, and the brake bolt 10 can be pushed to insert the brake bolt 10 into the interior of the semicircular groove 9, so that the semicircular groove 9 cooperates with the brake bolt 10 to brake the second hinge connecting sub-piece 5, and at the same time, the second hinge connecting sub-piece 5 is maintained at 180° with the hinge connecting main piece 4, and the brake bolt 10 is moved out of the semicircular groove 9 to release the positioning of the second hinge connecting sub-piece 5, so that the second hinge connecting sub-piece 5 can rotate freely.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A locking and limiting multifunctional ankle hinge, comprising a hinge connecting main plate (4), characterized in that: The upper surface of the hinge connection main piece (4) is provided with a first connection hole (17); a first hinge connection sub-piece (1) is provided above the hinge connection main piece (4); a second hinge connection sub-piece (5) is provided above the first hinge connection sub-piece (1); a second connection hole (8) is provided on the upper surface of the first hinge connection sub-piece (1) and the upper surface of the second hinge connection sub-piece (5); an arc groove (3) is provided on the upper surface of the first hinge connection sub-piece (1); and a second connection hole (8) is provided on the upper surface of the second hinge connection sub-piece (5). A semicircular groove (9) is provided on the upper surface of the plate (5), a countersunk nut (2) is provided inside one of the second connecting holes (8), a countersunk screw (18) is provided inside the first connecting hole (17), and the countersunk screw (18) is threadedly connected to the countersunk nut (2), and a stepped groove (16) is provided on the upper surface of the hinge connecting main plate (4), and a brake bolt (10) is slidably connected to the inner wall of the stepped groove (16), and the top end of the brake bolt (10) extends to the inside of the arc groove (3).

2. A locking and limiting multifunctional ankle hinge according to claim 1, characterized in that: The upper surface of the hinge connection main plate (4) is provided with two groups of slots (15), and the inner wall of each slot (15) is rotatably connected with a ball (14).

3. The locking and limiting multifunctional ankle hinge according to claim 1, characterized in that: The brake tumbler (10) is made of rubber material, and the semicircular groove (9) is adapted to the brake tumbler (10).

4. The locking and limiting multifunctional ankle hinge according to claim 1, characterized in that: The front and back sides of the first hinge-connected sub-piece (1) and the front and back sides of the second hinge-connected sub-piece (5) are fixedly connected with a first anti-slip strip (7), and the front and back sides of the hinge-connected main piece (4) are fixedly connected with a second anti-slip strip (13).

5. The locking and limiting multifunctional ankle hinge according to claim 1, characterized in that: The upper surface of the first hinge connection sub-piece (1) and the upper surface of the second hinge connection sub-piece (5) are both provided with two first through holes (6), and the upper surface of the hinge connection main piece (4) is provided with two second through holes (12).

6. The locking and limiting multifunctional ankle hinge according to claim 1, characterized in that: A U-shaped bar (11) is fixedly connected to the upper surface of the hinge-connected main plate (4), and the U-shaped bar (11) is located directly above the stepped groove (16).

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