A hydraulic bionic ankle joint

Abstract

The utility model discloses a hydraulic bionic ankle joint, which relates to the field of bionic mechanical technology, and comprises a fixed circular plate fixedly mounted on the top of the hydraulic bionic ankle joint body, a fixed tube fixedly mounted on the top of the fixed circular plate, a nut fixedly mounted in the fixed tube, a rotating screw mounted in the inner thread of the nut, a connecting plate fixedly mounted on the top of the rotating screw, a mounting plate arranged above the connecting plate, two grooves provided at the bottom of the mounting plate, two vertical plates fixedly mounted on the top of the connecting plate, and the tops of the two vertical plates respectively extend into the two grooves, a card slot is respectively provided on the two vertical plates, and a cavity is provided in the mounting plate. The hydraulic bionic ankle joint provided by the utility model has the advantages of adjusting the length according to the patient, so that the patient's legs always keep the same length.

Description

Technical Field

[0001] The utility model relates to the technical field of bionic machinery, in particular to a hydraulic bionic ankle joint. Background Art

[0002] In recent years, the number of people who have undergone below-knee amputations has gradually increased due to traffic accidents, diseases and other reasons. Wearing ankle prostheses can greatly compensate for the body's missing functions. The hydraulic bionic ankle is a type of ankle prosthesis. The hydraulic bionic ankle allows disabled people to move normally.

[0003] However, the existing hydraulic bionic ankle joints are generally of fixed length. When a disabled person who is still in the development stage only installs and uses this device on one leg, since the disabled person is still in the development stage, the normal leg of the disabled person will gradually grow longer, while the other leg installed with this device will always maintain a fixed length, which will eventually lead to different lengths of the two legs, causing inconvenience to the disabled person when moving, and there are certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic bionic ankle joint to solve at least any problem raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic bionic ankle joint, comprising a fixed circular plate fixedly installed on the top of the hydraulic bionic ankle joint body, a fixed tube fixedly installed on the top of the fixed circular plate, a nut fixedly installed in the fixed tube, a rotating screw installed on the inner thread of the nut, a connecting plate fixedly installed on the top of the rotating screw, a mounting plate is arranged above the connecting plate, two grooves are provided at the bottom of the mounting plate, two vertical plates are fixedly installed on the top of the connecting plate, and the tops of the two vertical plates extend into the two grooves respectively, the two vertical plates are respectively provided with card slots, a cavity is provided in the mounting plate, two card rods are slidably installed in the cavity, and the ends of the two card rods away from each other extend into the two card slots respectively.

[0006] Preferably, a movable plate is fixedly installed at one end of the two clamping rods that are close to each other, and a fixed rod is slidably installed on the two movable plates, and the fixed rod is fixedly connected to the inner wall of the cavity, and a compression spring is provided on the movable sleeve of the fixed rod, and the two ends of the compression spring are fixedly connected to the corresponding two movable plates.

[0007] Preferably, the compression spring is a tin-plated spring.

[0008] Preferably, a winding rod is rotatably installed in the cavity, and the bottom end of the winding rod extends outside the mounting plate. Two pull ropes are wound around the winding rod, and one end of the two pull ropes is fixedly connected to the two movable plates respectively.

[0009] Preferably, a rotating plate is fixedly mounted on the bottom end of the winding rod, and a friction sleeve is fixed on the rotating plate.

[0010] Preferably, a rotating hole is opened on the inner wall of the bottom of the cavity, a rotating bearing is fixedly installed in the rotating hole, and the winding rod passes through the rotating bearing and is fixedly connected to the inner wall of the rotating bearing.

[0011] Preferably, the two movable plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the two through holes, and the fixing rod passes through the linear bearings and is slidably connected to the inner wall of the linear bearings.

[0012] The beneficial effects of the utility model are as follows:

[0013] In the utility model, a hydraulic bionic ankle joint body, a rotating screw, a connecting plate and a mounting plate are used to form a prosthesis to replace the amputated part of the disabled person, so that the disabled person can live a normal life. The overall length of the device is lengthened by rotating the screw, so that the disabled person's legs can always maintain the same length, making the disabled person's daily life more convenient. The rotating plate is rotated to drive the two clamping rods to move out of the clamping slot. The staff can move the vertical plate downward to remove the hydraulic bionic ankle joint body from the mounting plate and replace the hydraulic bionic ankle joint body. The process is simple, fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of the hydraulic bionic ankle joint provided by the utility model;

[0015] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0016] Figure 3 A stereoscopic diagram of the hydraulic bionic ankle joint provided by the utility model.

[0017] In the figure: 1. hydraulic bionic ankle joint body; 2. fixed circular plate; 3. fixed tube; 4. nut; 5. rotating screw; 6. connecting plate; 7. vertical plate; 8. mounting plate; 9. groove; 10. clamping slot; 11. clamping rod; 12. cavity; 14. winding rod; 15. moving plate; 16. fixed rod; 17. compression spring; 18. pull rope. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3 The hydraulic bionic ankle joint shown in the figure comprises a fixed circular plate 2 fixedly mounted on the top of the hydraulic bionic ankle joint body 1, a fixed tube 3 is fixedly mounted on the top of the fixed circular plate 2, a nut 4 is fixedly mounted inside the fixed tube 3, a prosthesis is formed by the hydraulic bionic ankle joint body 1, a rotating screw 5, a connecting plate 6 and a mounting plate 8 to replace the amputated part of the disabled person, so that the disabled person can live a normal life, the hydraulic bionic ankle joint body 1 is kept stationary by pressing the hydraulic bionic ankle joint body 1, the rotating screw 5 is rotated, and the rotating screw 5 is rotated and moved upward, so that the overall length of the device is lengthened, so that the disabled person can adjust the overall length of the device according to the development of his normal legs, so that the disabled person's legs always keep the same length, making the disabled person's daily life more convenient, and the nut 4 is inside A rotating screw 5 is threadedly installed, and a connecting plate 6 is fixedly installed on the top of the rotating screw 5. A mounting plate 8 is arranged above the connecting plate 6. Two grooves 9 are provided at the bottom of the mounting plate 8. Two vertical plates 7 are fixedly installed on the top of the connecting plate 6, and the tops of the two vertical plates 7 extend into the two grooves 9 respectively. A clamping groove 10 is respectively provided on the two vertical plates 7. A cavity 12 is provided in the mounting plate 8. Two clamping rods 11 are slidably installed in the cavity 12, and the ends of the two clamping rods 11 away from each other extend into the two clamping grooves 10 respectively. When the two clamping rods 11 are moved out of the clamping groove 10, the vertical plate 7 changes from a clamped state to a free state. The staff can remove the hydraulic bionic ankle joint body 1 from the mounting plate 8 and replace the hydraulic bionic ankle joint body 1 by moving the vertical plate 7 downward. The process is simple, fast and efficient.

[0020] In order to ensure that one end of the clamping rod 11 is always located in the clamping groove 10 to clamp the vertical plate 7 without being affected by other external forces, and thus the hydraulic bionic ankle joint body 1 is fixedly connected to the mounting plate 8, the ends of the two clamping rods 11 close to each other are respectively fixedly installed with movable plates 15, and fixed rods 16 are slidably installed on the two movable plates 15. In order to reduce the friction between the fixed rod 16 and the movable plate 15, and thus reduce the wear of the fixed rod 16 and improve the service life of the fixed rod 16, through holes are respectively opened on the two movable plates 15, and linear bearings are respectively fixedly installed in the two through holes. The fixed rod 16 penetrates the linear bearing and is slidably connected to the inner wall of the linear bearing, and the fixed rod 16 is fixedly connected to the inner wall of the cavity 12, and a compression spring 17 is movablely sleeved on the fixed rod 16. In order to improve the service life of the compression spring 17, the compression spring 17 is a tin-plated spring, and the two ends of the compression spring 17 are respectively fixedly connected to the corresponding two movable plates 15.

[0021] In order to more conveniently move the card rod 11 out of the card slot 10, a winding rod 14 is rotatably installed in the cavity 12. In order to rotatably install the winding rod 14 in the cavity 12, a rotating hole is opened on the bottom inner wall of the cavity 12, and a rotating bearing is fixedly installed in the rotating hole. The winding rod 14 passes through the rotating bearing and is fixedly connected to the inner wall of the rotating bearing. The winding rod 14 rotates more stably in the cavity 12 through the bearing, and the bottom end of the winding rod 14 extends to the outside of the mounting plate 8. In order to make it more convenient for people to rotate the winding rod 14, a rotating plate is fixedly installed at the bottom end of the winding rod 14, and a friction sleeve is fixed on the rotating plate. The anti-slip sleeve prevents people from slipping when rotating the rotating plate, which affects work efficiency. Two pull ropes 18 are wound around the winding rod 14, and one end of the two pull ropes 18 is fixedly connected to the two movable plates 15 respectively.

[0022] The working principle of the hydraulic bionic ankle joint provided by the utility model is as follows: in the initial state, the compression spring 17 is in a compressed state, and the compression spring 17 makes the two clamping rods 11 always be located in the clamping groove 10 on one side to clamp the vertical plate 7 without being affected by other external forces, thereby fixing the mounting plate 8 and the hydraulic bionic ankle joint body 1 together. When the device needs to be used, the mounting plate 8 is fixedly installed at the position of the below-knee amputation of the disabled person, and a prosthesis is formed by the hydraulic bionic ankle joint body 1, the rotating screw 5, the connecting plate 6 and the mounting plate 8 to replace the amputated part of the disabled person, so that the disabled person can live a normal life. By pressing the hydraulic bionic ankle joint body 1 to keep the hydraulic bionic ankle joint body 1 in a stationary state, the rotating screw 5 is rotated, and the rotating screw 5 rotates and moves upward. Thereby, the overall length of the device is lengthened, so that the disabled can adjust the overall length of the device according to the development of their normal legs, so that the disabled can always keep their legs at the same length, making the disabled more convenient in their daily life. When the hydraulic bionic ankle joint body 1 fails and needs to be replaced, the rotating plate is rotated, and the rotation of the rotating plate drives the winding rod 14 to rotate, and the winding rod 14 rotates to reel in the pull rope 18, and the pull rope 18 pulls the two moving plates 15 and the clamping rod 11 to move. When the two clamping rods 11 move out of the clamping slot 10, the vertical plate 7 changes from a clamped state to a free state. The staff moves the vertical plate 7 downward to remove the hydraulic bionic ankle joint body 1 from the mounting plate 8 and replace the hydraulic bionic ankle joint body 1. The process is simple, fast and efficient.

[0023] Compared with the related art, the hydraulic bionic ankle joint provided by the utility model has the following beneficial effects:

[0024] The utility model provides a hydraulic bionic ankle joint, which is composed of a hydraulic bionic ankle joint body 1, a rotating screw 5, a connecting plate 6 and a mounting plate 8 to form a prosthesis to replace the amputated part of a disabled person, so that the disabled person can live a normal life. The overall length of the device is lengthened by rotating the screw 5, so that the legs of the disabled person can always maintain the same length, making the daily life of the disabled person more convenient. The rotating plate is driven to rotate two clamping rods 11 to move out of the clamping slot 10, and the staff can move the vertical plate 7 downward to remove the hydraulic bionic ankle joint body 1 from the mounting plate 8 and replace the hydraulic bionic ankle joint body 1. The process is simple, fast and efficient.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic bionic ankle joint, comprising a fixed circular plate fixedly mounted on the top of the hydraulic bionic ankle joint body, characterized in that: A fixing tube is fixedly installed on the top of the fixed circular plate, a nut is fixedly installed in the fixing tube, a rotating screw is installed on the inner thread of the nut, a connecting plate is fixedly installed on the top of the rotating screw, a mounting plate is arranged above the connecting plate, two grooves are provided at the bottom of the mounting plate, two vertical plates are fixedly installed on the top of the connecting plate, and the tops of the two vertical plates extend into the two grooves respectively, the two vertical plates are respectively provided with card slots, a cavity is provided in the mounting plate, two card rods are slidably installed in the cavity, and the ends of the two card rods away from each other extend into the two card slots respectively.

2. The hydraulic bionic ankle joint according to claim 1, characterized in that: A movable plate is fixedly installed at one end of the two clamping rods that are close to each other, and a fixed rod is slidably installed on the two movable plates. The fixed rod is fixedly connected to the inner wall of the cavity, and a compression spring is provided on the movable sleeve of the fixed rod. The two ends of the compression spring are fixedly connected to the corresponding two movable plates.

3. The hydraulic bionic ankle joint according to claim 2, characterized in that: The compression spring is a tinned spring.

4. The hydraulic bionic ankle joint according to claim 3, characterized in that: A winding rod is rotatably installed in the cavity, and the bottom end of the winding rod extends outside the mounting plate. Two pull ropes are wound around the winding rod, and one end of the two pull ropes is fixedly connected to the two movable plates respectively.

5. The hydraulic bionic ankle joint according to claim 4, characterized in that: A rotating plate is fixedly mounted on the bottom end of the winding rod, and a friction sleeve is fixed on the rotating plate.

6. The hydraulic bionic ankle joint according to claim 5, characterized in that: A rotating hole is opened on the inner wall of the bottom of the cavity, a rotating bearing is fixedly installed in the rotating hole, and the winding rod passes through the rotating bearing and is fixedly connected to the inner wall of the rotating bearing.

7. The hydraulic bionic ankle joint according to claim 6, characterized in that: The two movable plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the two through holes. The fixing rod passes through the linear bearings and is slidably connected with the inner wall of the linear bearings.

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