Hydraulic heel adjusting type artificial limb foot plate structure

Abstract

The utility model relates to the technical field of prosthetic foot plates, and discloses a hydraulic heel adjusting type prosthetic foot plate structure which comprises a fixing box and a foot plate body, a through hole is formed in the middle of the lower end face of the fixing box, a containing groove is formed above the through hole, and a buffering assembly is fixedly arranged in the containing groove. A second ball head is fixedly connected to the lower end of the buffer assembly, sliding grooves are formed in the two sides of the through hole, a rotating groove is formed in the middle of the upper end face of the foot plate body, grooves are formed in the two sides of the upper end face of the foot plate body, and first ball heads are fixedly arranged on the two sides of the lower end face of the fixing box; and reset assemblies are rotationally connected into the two first ball heads and the two grooves correspondingly, each buffer assembly comprises a hydraulic rod, two buffer grooves and two second bearing seats, and a bearing plate is fixedly arranged at the lower end of each hydraulic rod. According to the foot plate, the stability of the foot plate body during walking is improved, effective damping is carried out, and the balance of a person during use is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial limb foot plates, in particular to a hydraulic heel-adjusting artificial limb foot plate structure. Background Art

[0002] A prosthetic foot is a component installed under the prosthesis to support and simulate the natural walking movement of the human body. It is usually made of wear-resistant, soft materials to provide comfortable sole support and has certain elasticity and anti-slip properties. The prosthetic foot is an important component of the prosthesis. Its design and function directly affect the user's comfort, stability and walking experience. Therefore, in the selection and use of prostheses, the quality and performance of the prosthetic foot is one of the important factors to consider.

[0003] After the existing foot plate is installed on the prosthesis, it imitates the walking action of the human body by supporting the ground. However, during the walking process, the ground gives a certain impact to the prosthesis, which cannot be directly alleviated, and the foot plate is easily unbalanced and injured after being vibrated.

[0004] Therefore, the utility model provides a hydraulic heel-adjustable prosthetic foot structure to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a hydraulic heel-adjustable prosthetic foot structure, which makes the foot body more stable when walking, reduces the impact of the ground, and makes the foot body provide a more natural and stable walking experience.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic heel-adjustable prosthetic foot structure, comprising a fixing box and a foot body, a through hole is provided in the middle of the lower end surface of the fixing box, a receiving groove is provided above the through hole, a buffer component is fixedly arranged inside the receiving groove, a second ball head is fixedly connected to the lower end of the buffer component, sliding grooves are provided on both sides of the through hole, a rotation groove is provided in the middle of the upper end surface of the foot body, grooves are provided on both sides of the upper end surface of the foot body, first ball heads are fixedly arranged on both sides of the lower end surface of the fixing box, and two first ball heads are rotatably connected to the inside of two grooves with reset components;

[0007] The buffer assembly includes a hydraulic rod, two buffer grooves and two second bearing seats, a bearing plate is fixedly arranged at the lower end of the hydraulic rod, a connecting column is fixedly arranged at the middle of the lower end surface of the bearing plate, sliders are fixedly arranged on both sides of the connecting column, first bearing seats are fixedly arranged on both sides of the upper end surface of the bearing plate, rotating rods are rotatably arranged inside the two first bearing seats, buffer blocks are fixedly arranged on the opposite sides of the two second bearing seats, dampers are fixedly arranged on the top surfaces of the two buffer grooves, sliding rods are fixedly arranged at the lower ends of the two dampers, and buffer springs are fixedly sleeved on the upper parts of the two sliding rods;

[0008] The reset assembly comprises an elastic band and two through rods, a movable plate is fixedly arranged at the lower end of the elastic band, and reset springs are fixedly sleeved on the upper parts of the two through rods;

[0009] Through the above technical scheme, through the through hole opened in the middle of the lower end surface of the fixed box, the buffer component inside the accommodating groove opened at the upper end of the through hole is connected to the second ball head, so that the second ball head rotates in the rotating groove opened in the middle of the upper end surface of the foot plate body, and the impact of the ground is reduced when the foot plate body is in use, the stability of the foot plate body is improved, and the foot plate body is buffered when in use. Through the second ball heads arranged on both sides of the lower end surface of the fixed box, the reset component connected to the second ball head resets the foot plate body after the angle changes when in use;

[0010] The connecting column in the buffer assembly is squeezed to make the sliders on both sides of the connecting column slide in the slide groove, and the bearing plate at the upper end of the connecting column squeezes the hydraulic rod to make the hydraulic rod contract, and the rotating rod inside the first bearing seat on both sides of the upper end surface of the bearing plate is rotatably connected to the inside of the second bearing seat, so that the buffer block connected to the second bearing seat slides around the sliding rod, and squeezes the buffer spring and damper around the sliding rod for buffering, thereby improving the stability of the prosthetic foot plate body when it contacts the ground, effectively buffering and reducing the impact brought by the ground, and being more balanced when walking to prevent shaking and causing tipping injuries;

[0011] The two sides of the movable plate connected by the elastic band in the reset assembly slide around the through rod, and the elastic band pulls the movable plate when the angle changes, so that the movable plate squeezes the reset spring on the upper part of the through rod, which is convenient for the foot plate body to reset after the angle changes when walking on the ground, so that the foot plate body provides a more natural and smooth walking experience.

[0012] Furthermore, the upper ends of the two rotating rods are respectively rotatably sleeved inside the two second bearing seats, and the two buffer blocks are respectively slidably sleeved around the two sliding rods;

[0013] Through the above technical solution, the rotating rod is rotatably sleeved inside the second bearing seat, so that the buffer block connected to the second bearing seat can be pushed to slide around the sliding rod to perform buffering.

[0014] Furthermore, the two sliding blocks are slidably disposed in the two sliding grooves respectively;

[0015] Through the above technical solution, the slider slides in the slide groove, making the foot plate body more stable when being buffered.

[0016] Furthermore, the two sides of the movable plate are respectively slidably sleeved around the two through rods, and the two return springs are respectively fixedly connected to the two sides of the end surface of the movable plate;

[0017] Through the above technical solution, the two sides of the movable plate are slidably sleeved around the through rod, so that the movable plate squeezes the reset spring on the through rod to perform the reset process.

[0018] Furthermore, the second ball head is rotatably connected inside the rotation groove, and a connecting sleeve is fixedly provided on the upper end of the fixing box;

[0019] Through the above technical solution, the second ball head is rotatably connected inside the rotating groove, which facilitates the angle change of the foot plate body, and the connection sleeve fixed at the upper end of the fixing box facilitates the connection of the prosthesis.

[0020] Furthermore, a bottom plate is fixedly provided at the lower end of the foot plate body, and the bottom plate is made of rubber material;

[0021] Through the above technical solution, the bottom plate is fixedly arranged at the lower end of the foot plate body, and the bottom plate is made of rubber material, so that it is more stable when walking on the ground.

[0022] The utility model has the following beneficial effects:

[0023] 1. The utility model proposes a hydraulic heel-adjustable prosthetic foot structure, which is provided with a through hole opened in the middle of the lower end surface of the fixing box, so that a buffer component is fixedly arranged in the accommodating groove opened above the through hole, and the second ball head at the lower end of the buffer component rotates in the rotating groove opened at the upper end of the foot plate body, and when squeezing, the connecting column in the buffer component is squeezed, so that the sliding blocks on both sides of the connecting column slide in the sliding groove, and the bearing plate at the upper end of the connecting column squeezes the hydraulic rod to make the hydraulic rod contract, and the rotating rod inside the first bearing seat on both sides of the upper end surface of the bearing plate is rotatably connected to the inside of the second bearing seat, so that the buffer block connected to the second bearing seat slides around the sliding rod, and squeezes the buffer spring and damper around the sliding rod for buffering, thereby improving the stability of the prosthetic foot plate body when it contacts the ground, effectively buffering and reducing the impact brought by the ground, and being more balanced when walking to prevent shaking and causing tipping and injury.

[0024] 2. The utility model proposes a hydraulic heel-adjustable prosthetic foot structure, which is connected to the reset component by a first ball head arranged on both sides of the lower end surface of a fixed box, so that after the angle of the foot plate body is changed, the two sides of the movable plate connected by the elastic band slide around the through rod, and when the angle is changed, the elastic band pulls the movable plate, so that the movable plate squeezes the reset spring on the upper part of the through rod, which is convenient for the foot plate body to be reset after the angle changes when walking on the ground, so that the foot plate body provides a more natural and stable walking experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the axial side of the utility model;

[0026] Figure 2 It is a front cross-sectional schematic diagram of the utility model;

[0027] Figure 3 It is an enlarged schematic diagram of point A of the utility model;

[0028] Figure 4 It is an enlarged schematic diagram of point B of the present utility model.

[0029] Legend:

[0030] 1. Connecting sleeve; 2. Fixing box; 3. Foot plate body; 4. Bottom plate; 5. Receiving groove; 6. Buffer assembly; 7. First ball head; 8. Reset assembly; 9. Second ball head; 10. Groove; 11. Slide groove; 12. Through hole; 13. Rotation groove; 601. Hydraulic rod; 602. Rotation rod; 603. First bearing seat; 604. Loading plate; 605. Damper; 606. Buffer spring; 607. Buffer block; 608. Second bearing seat; 609. Buffer groove; 6010. Slide rod; 6011. Connecting column; 6012. Sliding block; 801. Elastic band; 802. Moving plate; 803. Through rod; 804. Reset spring. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1-4 The utility model provides an embodiment: a hydraulic heel-adjustable prosthetic foot structure, including a fixing box 2 and a foot body 3, a through hole 12 is provided in the middle of the lower end surface of the fixing box 2, a receiving groove 5 is provided above the through hole 12, a buffer component 6 is fixedly arranged inside the receiving groove 5, a second ball head 9 is fixedly connected to the lower end of the buffer component 6, a slide groove 11 is provided on both sides of the through hole 12, a rotation groove 13 is provided in the middle of the upper end surface of the foot body 3, grooves 10 are provided on both sides of the upper end surface of the foot body 3, first ball heads 7 are fixedly arranged on both sides of the lower end surface of the fixing box 2, and the two first ball heads 7 and the two grooves 10 are provided inside They are all rotatably connected with a reset component 8, and through a through hole 12 opened in the middle of the lower end surface of the fixed box 2, the buffer component 6 inside the accommodating groove 5 opened at the upper end of the through hole 12 is connected to the second ball head 9, so that the second ball head 9 rotates in the rotation groove 13 opened in the middle of the upper end surface of the foot plate body 3, so that the impact brought by the ground is reduced when the foot plate body 3 is in use, the stability of the foot plate body 3 is improved, and the foot plate body 3 is buffered when in use. Through the second ball heads 9 arranged on both sides of the lower end surface of the fixed box 2, the reset component 8 connected to the second ball head 9 can reset the foot plate body 3 after the angle changes during use.

[0033] The buffer assembly 6 includes a hydraulic rod 601, two buffer grooves 609 and two second bearing seats 608. A bearing plate 604 is fixedly arranged at the lower end of the hydraulic rod 601, a connecting column 6011 is fixedly arranged in the middle of the lower end surface of the bearing plate 604, and sliders 6012 are fixedly arranged on both sides of the connecting column 6011. First bearing seats 603 are fixedly arranged on both sides of the upper end surface of the bearing plate 604. Rotating rods 602 are rotatably arranged inside the two first bearing seats 603. Buffer blocks 607 are fixedly arranged on the opposite sides of the two second bearing seats 608. Dampers 605 are fixedly arranged on the top surfaces of the two buffer grooves 609. Slide rods 6010 are fixedly arranged at the lower ends of the two dampers 605. Buffer springs 606 are fixedly sleeved on the upper parts of the two slide rods 6010. Through the connecting rods in the buffer assembly 6 The connecting column 6011 is squeezed, causing the sliders 6012 on both sides of the connecting column 6011 to slide in the slide groove 11, and causing the supporting plate 604 at the upper end of the connecting column 6011 to squeeze the hydraulic rod 601, causing the hydraulic rod 601 to contract, and the rotating rod 602 inside the first bearing seat 603 on both sides of the upper end surface of the supporting plate 604 is rotatably connected to the inside of the second bearing seat 608, causing the buffer block 607 connected to the second bearing seat 608 to slide around the slide rod 6010, and squeezing the buffer spring 606 and the damper 605 around the slide rod 6010 for buffering, thereby improving the stability of the prosthetic foot plate body 3 when it contacts the ground, effectively buffering and reducing the impact brought by the ground, and being more balanced when walking to prevent shaking and causing tipping injuries.

[0034] The reset component 8 includes an elastic band 801 and two through rods 803. A movable plate 802 is fixedly provided at the lower end of the elastic band 801. Reset springs 804 are fixedly sleeved around the upper parts of the two through rods 803. The movable plates 802 connected by the elastic band 801 in the reset component 8 slide around the through rods 803 on both sides, and the elastic band 801 pulls the movable plates 802 when the angle changes, so that the movable plates 802 squeeze the reset springs 804 around the upper parts of the through rods 803, so as to facilitate the reset of the foot plate body 3 after the angle changes when walking on the ground, so that the foot plate body 3 provides a more natural and stable walking experience.

[0035] The upper ends of the two rotating rods 602 are respectively rotatably sleeved inside the two second bearing seats 608, and the two buffer blocks 607 are respectively slidably sleeved around the two sliding rods 6010. By rotating the rotating rods 602 and sleeved inside the second bearing seats 608, the buffer blocks 607 connected to the second bearing seats 608 can be pushed to slide around the sliding rods 6010 for buffering. The two sliding blocks 6012 are respectively slidably set inside the two sliding grooves 11. By sliding the sliding blocks 6012 in the sliding grooves 11, the foot plate body 3 is more stable when buffering, preventing the imbalance caused by the impact on the personnel from causing tilting.

[0036] The two sides of the movable plate 802 are respectively slidably sleeved on the two through rods 803, and the two reset springs 804 are respectively fixedly connected to the two sides of the upper end surface of the movable plate 802. The two sides of the movable plate 802 are slidably sleeved on the through rod 803, so that the movable plate 802 squeezes the reset spring 804 on the through rod 803 to perform reset processing. The second ball head 9 is rotatably connected to the inside of the rotating groove 13. A connecting sleeve 1 is fixedly arranged on the upper end of the fixed box 2, which is rotatably connected to the inside of the rotating groove 13 through the second ball head 9, so that the angle of the foot plate body 3 can be changed conveniently. The connecting sleeve 1 fixedly arranged on the upper end of the fixed box 2 is convenient for connecting the prosthesis. A base plate 4 is fixedly arranged on the lower end of the foot plate body 3. The material used for the base plate 4 is made of rubber material. The base plate 4 fixedly arranged on the lower end of the foot plate body 3 is made of rubber material, which makes it more stable when walking on the ground.

[0037] Working principle: By connecting the prosthesis inside the connecting sleeve 1, when the foot plate body 3 is used to contact the ground for walking, the buffer component 6 inside the accommodating groove 5 opened above the through hole 12 opened at the lower end of the fixing box 2 is connected to the second ball head 9, so that the second ball head 9 can rotate the foot plate body 3 at an angle, so that the bottom plate 4 connected to the foot plate body 3 can buffer the impact generated by the contact with the ground, prevent shaking when walking, and make the person more balanced when walking. The reset component 8 connected to the first ball heads 7 on both sides of the lower end surface of the fixing box 2 can reset the foot plate body 3 when the angle changes, so that the foot plate body 3 provides a more natural and smooth walking experience.

[0038] 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 heel-adjustable prosthetic foot structure, comprising a fixing box (2) and a foot body (3), characterized in that: A through hole (12) is provided in the middle of the lower end surface of the fixed box (2), a receiving groove (5) is provided above the through hole (12), a buffer component (6) is fixedly arranged inside the receiving groove (5), a second ball head (9) is fixedly connected to the lower end of the buffer component (6), sliding grooves (11) are provided on both sides of the through hole (12), a rotation groove (13) is provided in the middle of the upper end surface of the foot plate body (3), grooves (10) are provided on both sides of the upper end surface of the foot plate body (3), first ball heads (7) are fixedly arranged on both sides of the lower end surface of the fixed box (2), and the two first ball heads (7) are rotatably connected to the inside of the two grooves (10) with reset components (8); The buffer assembly (6) comprises a hydraulic rod (601), two buffer grooves (609) and two second bearing seats (608); a bearing plate (604) is fixedly arranged at the lower end of the hydraulic rod (601); a connecting column (6011) is fixedly arranged in the middle of the lower end surface of the bearing plate (604); sliding blocks (6012) are fixedly arranged at the lower sides of both sides of the connecting column (6011); and first bearing seats (608) are fixedly arranged at both sides of the upper end surface of the bearing plate (604). 03), a rotating rod (602) is rotatably arranged inside the two first bearing seats (603), a buffer block (607) is fixedly arranged on the opposite side of the two second bearing seats (608), a damper (605) is fixedly arranged on the top surface of the two buffer grooves (609), a sliding rod (6010) is fixedly arranged at the lower end of the two dampers (605), and a buffer spring (606) is fixedly sleeved on the upper part of the two sliding rods (6010).

2. The hydraulic heel-adjustable prosthetic foot structure according to claim 1, characterized in that: The reset assembly (8) comprises an elastic band (801) and two through rods (803); a movable plate (802) is fixedly provided at the lower end of the elastic band (801); and reset springs (804) are fixedly sleeved around the upper parts of the two through rods (803).

3. The hydraulic heel-adjustable prosthetic foot structure according to claim 1, characterized in that: The upper ends of the two rotating rods (602) are rotatably sleeved inside the two second bearing seats (608), and the two buffer blocks (607) are slidably sleeved around the two sliding rods (6010).

4. The hydraulic heel-adjustable prosthetic foot structure according to claim 1, characterized in that: The two sliding blocks (6012) are respectively slidably arranged inside the two sliding grooves (11).

5. The hydraulic heel-adjustable prosthetic foot structure according to claim 2, characterized in that: The two sides of the movable plate (802) are respectively slidably sleeved around the two through rods (803), and the two return springs (804) are respectively fixedly connected to the two sides of the upper end surface of the movable plate (802).

6. The hydraulic heel-adjustable prosthetic foot structure according to claim 1, characterized in that: The second ball head (9) is rotatably connected inside the rotation groove (13), and a connecting sleeve (1) is fixedly provided on the upper end of the fixing box (2).

7. The hydraulic heel-adjustable prosthetic foot structure according to claim 1, characterized in that: A bottom plate (4) is fixedly arranged at the lower end of the foot plate body (3), and the bottom plate (4) is made of rubber material.

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