Buffering and silencing assembly of orthosis

Abstract

The buffering and silencing assembly comprises two supporting plates, the two supporting plates are movably connected, mounting grooves communicating with the end walls of the supporting plates are formed in the inner sides of the adjacent ends of the supporting plates, buffering blocks are fixedly clamped in the mounting grooves, and the end of at least one buffering block crosses the end wall of the corresponding supporting plate. When the adjacent ends of the two supporting plates are movably close to each other, the two buffer blocks can replace the two supporting plates to abut against each other, absorb impact energy, reduce noise generated by collision and achieve the silencing effect, and compared with a traditional inserting mode, the buffer blocks can be directly clamped in the mounting grooves in the inner sides of the supporting plates, the mounting grooves can be compatible with mounting of buffer blocks of any hardness, and the mounting efficiency is improved. The problem that a buffering structure of a traditional lower limb orthosis is prone to contradiction among material hardness, assembling performance and buffering performance is solved, the assembling difficulty is lowered, and material selection of the buffering block is more flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of orthotics, and in particular to a buffer and sound insulation component of an orthotic device. Background Art

[0002] As a medical device for correcting or assisting human movement functions, the structural design of an orthotic device is directly related to the wearing comfort of patients and the treatment effect. Traditional lower limb orthotic devices usually adopt a split structure design, that is, they are composed of a foot support and a calf support, and the two are connected by a rigid or flexible joint. While such a split structure realizes the freedom of joint movement and the support function, there are also some technical defects. During the walking or movement of patients, the connecting part between the foot support and the calf support generates relative displacement due to movement, resulting in mechanical impact between the two. This impact not only causes an instantaneous impact force, making the patient feel uncomfortable, but also is accompanied by obvious noise, and long-term use is likely to cause psychological pressure and resistance in patients. To alleviate the above problems, buffer and sound insulation components are generally used for improvement in the prior art. For example, through holes or through grooves are opened in the contact area between the foot support and the calf support, and cylindrical buffer pads are configured to be inserted into the holes / grooves to absorb impact energy.

[0003] However, the buffer structure of traditional lower limb orthotic devices is prone to contradictions between material hardness, assembly performance, and buffer performance. Selecting a soft material is prone to deformation and failure and difficult to assemble, while selecting a hard material is easy to assemble but has insufficient impact absorption capacity. Summary of the Invention

[0004] In view of this, the present invention provides a buffer and sound insulation component of an orthotic device to solve the problem that the buffer structure of the orthotic device in the prior art is prone to contradictions between material hardness, assembly performance, and buffer performance, where selecting a soft material is prone to deformation and failure and difficult to assemble, while selecting a hard material is easy to assemble but has insufficient impact absorption capacity.

[0005] To achieve one or part or all of the above purposes or other purposes, the present invention proposes a buffer and sound insulation component of an orthotic device, including two support plates, the two support plates are movably connected, and mounting grooves communicating with their end walls are respectively opened on the inner sides of the adjacent ends of the support plates. Buffer blocks are fixedly clamped in the mounting grooves, and the end of at least one buffer block extends beyond the end wall of the corresponding support plate. When the adjacent ends of the two support plates move closer, the two buffer blocks can replace them to abut against each other to buffer the impact.

[0006] Preferably, the distance between the two inner side walls of the mounting groove gradually decreases from the inner side of the support plate to the inner wall of the mounting groove, and the contour of the buffer block matches the mounting groove.

[0007] Preferably, the buffer and sound insulation component of the orthotic device further includes a connecting member, and the buffer block and the support plate are rigidly connected through the connecting member.

[0008] Preferably, the connecting member includes a nut and a screw. A first through hole communicating with the installation groove is formed on the outer side of the supporting plate. A second through hole corresponding to the first through hole is formed on the buffer block. The nut is located on the exposed side of the buffer block. The head of the screw abuts against the outer side wall of the supporting plate, and its tip passes through the first through hole and the second through hole and is screwed with the nut.

[0009] Preferably, a receiving groove communicating with the second through hole is formed on the exposed side of the buffer block, and the nut is placed in the receiving groove.

[0010] Preferably, the nut is provided with teeth for restricting its slipping and self-rotation.

[0011] Preferably, a spherical convex block is provided at the end of one of the buffer blocks. When the adjacent ends of the two supporting plates move close to each other, the spherical convex block can abut against the end of the other buffer block.

[0012] Preferably, the buffer and sound-absorbing assembly of the orthosis further includes two flexible pads, which are fixedly laid on the exposed sides of the buffer blocks one by one and are flush with the inner side walls of the corresponding supporting plates.

[0013] Preferably, the buffer and sound-absorbing assembly of the orthosis further includes a forming block. When the two buffer blocks abut against each other, the two installation grooves are connected to form a cavity, and the contour of the cavity matches that of the forming block.

[0014] Preferably, positioning holes penetrating the inner and outer side walls are formed at both ends of the forming block.

[0015] Implementing the embodiments of the present invention will have the following beneficial effects:

[0016] After adopting the above-mentioned buffer and sound-absorbing assembly of the orthosis, during use, the contour of one of the supporting plates fits the heel and Achilles tendon parts. Its lower end can be bent forward to form a structure similar to a shoe sole to support the user's foot sole, and can be fixed to the foot sole by a strap, so that the corresponding supporting plate adheres to the user's heel. The contour of the other supporting plate fits the lower half of the calf. During use, this supporting plate adheres to the calf. Similarly, both ends in its circumferential direction can be connected by a strap to sleeved on the adjacent calf (not shown in the drawings). When the foot sole and the calf swing relative to each other to a certain angle, such as when the angle between the two is 90 degrees, the adjacent ends of the two supporting plates tend to collide. At this time, the two buffer blocks can abut against each other instead to absorb the impact energy, reduce the noise generated by the collision, and achieve a sound-absorbing effect. And compared with the traditional plug-in method, the buffer blocks in this application can be directly placed in the installation grooves on the inner side of the supporting plates. The installation grooves can be compatible with the installation of buffer blocks of any hardness, solving the problem that the buffer structure of traditional lower limb orthoses is prone to contradictions between material hardness, assembly performance, and buffer performance, reducing the assembly difficulty, and making the selection of buffer blocks more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Among them:

[0019] Figure 1 is an exploded view of the present invention from the front perspective;

[0020] Figure 2 is an exploded view of the present invention from the back perspective;

[0021] Figure 3 is a three-dimensional view of the present invention from the front perspective;

[0022] Figure 4 is a side sectional view of the present invention;

[0023] Figure 5 is an exploded view of the pallet, forming block and long nail in the present invention.

[0024] In the figure: 1, pallet; 11, installation groove; 12, first through hole; 2, buffer block; 21, second through hole; 22, accommodation groove; 23, spherical convex block; 3, nut; 4, screw; 5, flexible pad; 6, forming block; 61, nail hole; 62, positioning hole; 7, long nail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs; the terms used in the description of the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present invention or the above drawings are used to distinguish different objects and not to describe a specific order.

[0026] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0028] As Figures 1-5 shown, a buffer and sound insulation component of an orthosis includes two support plates 1. The two support plates 1 are movably connected, and mounting grooves 11 communicating with their end walls are respectively formed inside the adjacent ends of the support plates 1. Buffer blocks 2 are fixedly clamped in the mounting grooves 11. The end of at least one buffer block 2 extends beyond the end wall of the corresponding support plate 1. When the adjacent ends of the two support plates 1 move close to each other, the two buffer blocks 2 can abut against each other instead of the two support plates 1 to buffer the impact. It can be understood that the present invention can be applied to any limb connected by joints. Referring to Figure 4 ..., taking the foot and calf as an example, in use, the contour of the support plate 1 located Figure 4 below is adapted to the heel and Achilles tendon parts. Its lower end can be bent forward to form a structure similar to a shoe sole to support the user's sole. Its lower end can be fixed to the sole by a strap, so that the corresponding support plate 1 adheres to the user's heel. And the other support plate 1 located Figure 4 above is adapted to the lower half of the calf belly of the calf. In use, this support plate 1 adheres to the calf belly. Similarly, both ends in its circumferential direction can be connected by straps to sleeved on the adjacent calf (not shown in the drawings). When the sole and the calf swing relative to each other to a certain angle, such as when the angle between the two is 90 degrees, the adjacent ends of the two support plates 1 tend to collide. At this time, the two buffer blocks 2 can abut against each other instead of the two support plates 1 to absorb the impact energy, reduce the noise generated by the collision, and achieve a sound insulation effect. And compared with the traditional plug-in method, the buffer block 2 of the present application can be directly clamped in the mounting groove 11 inside the support plate 1. The mounting groove 11 can be compatible with the installation of buffer blocks 2 of any hardness, solving the problem that the buffer structure of the traditional lower limb orthosis is prone to contradictions between material hardness, assembly performance and buffer performance, reducing the assembly difficulty, and making the material selection of the buffer block 2 more flexible.

[0029] In one embodiment, the buffer and sound insulation component of the orthosis can be used for the arm. One support plate 1 is fixedly attached to the outer side of the forearm by a strap, and the other support plate 1 is fixedly attached to the outer side of the upper arm by a strap for use.

[0030] Specifically, the two support plates 1 can be movably connected by a linkage mechanism and relatively move within a fixed range to adapt to the limb movement of the user; the buffer block 2 can be fixed in the mounting groove 11 by one or a combination of methods such as plugging, gluing, and screwing with screws 4; the buffer block 2 can be made of any material with a hardness above Shore A55°, preferably Shore A65 - 85°.

[0031] Furthermore, the distance between the inner walls on both sides of the installation groove 11 gradually decreases from the inner side of the support plate 1 to the inner wall of the installation groove 11, making the cross-section of the installation groove 11 trapezoidal. The contour of the buffer block 2 matches that of the installation groove 11, so that when installing, the buffer block 2 can be easily inserted into the installation groove 11, which not only further reduces the installation difficulty of the buffer block 2, but also improves the connection strength between the inner wall of the installation groove 11 and the buffer block 2, enhancing the installation stability of the buffer block 2.

[0032] Furthermore, the buffer and noise reduction component of the orthosis further includes a connecting piece. The buffer block 2 and the support plate 1 are rigidly connected through the connecting piece. The connecting piece can be a bolt. Threaded holes can be preset on the buffer block 2. The bolt passes through the support plate 1 and is screwed with the threaded hole to tighten the buffer block 2 on the inner wall of the installation groove 11 (not shown in the drawings).

[0033] Furthermore, the connecting piece includes a nut 3 and a screw 4. A first through hole 12 communicating with the installation groove 11 is opened on the outer side of the support plate 1. A second through hole 21 corresponding to the first through hole 12 is opened on the buffer block 2. The nut 3 is located on the exposed side of the buffer block 2. The head of the screw 4 abuts against the outer side wall of the support plate 1, and its tip passes through the first through hole 12 and the second through hole 21 and is screwed with the nut 3. Thus, by tightening the screw 4, the buffer block 2 is clamped on the inner wall of the installation groove 11 by using the nut 3 and the head of the screw 4. When the two buffer blocks 2 collide, the screw 4 and the side wall of the installation groove 11 will provide support for the buffer block 2 to ensure the installation stability of the buffer block 2.

[0034] Furthermore, a receiving groove 22 communicating with the second through hole 21 is opened on the exposed side of the buffer block 2, and the nut 3 is placed in the receiving groove 22 to keep the exposed surface of the buffer block 2 flat, avoiding the foreign body sensation caused by the protrusion of the nut 3 contacting the limb and enhancing the use experience.

[0035] Furthermore, teeth for restricting its slipping and self-rotation are provided on the nut 3 (not shown in the drawings) to increase the frictional resistance between the nut 3 and the exposed side of the buffer block 2, prevent the nut 3 from easily rotating and loosening after the screw 4 is tightened, and improve the installation stability of the nut 3.

[0036] Furthermore, a spherical convex block 23 is provided at the end of one buffer block 2. In this embodiment, there are two spherical convex blocks 23. When the adjacent ends of the two support plates 1 move closer, the spherical convex block 23 can abut against the end of the other buffer block 2 to reduce the contact area when the two buffer blocks 2 collide through the spherical convex block 23. When the material hardness is appropriate, the local pressure during impact is increased, enabling the impact end of the buffer block 2 to enter plastic deformation faster, consuming more energy, reducing the proportion of vibration energy converted into sound energy, thereby reducing noise. At the same time, the small contact area is prone to cause high-frequency vibration, and high-frequency sound waves attenuate faster in the air, which can reduce the propagation distance and perceived noise within a certain range, further enhancing the noise reduction effect.

[0037] Further, the buffer and sound insulation component of the orthosis further includes two flexible pads 5. The flexible pads 5 can be made of foam or silica gel. The flexible pads 5 are fixedly laid on the exposed sides of the buffer blocks 2 one by one and are flush with the inner side walls of the corresponding supporting plates 1 to cover the nuts 3 and the buffer blocks 2. Using the flexible pads 5 as the extension of the inner wall of the supporting plate 1 makes the inner wall of the supporting plate 1 flat and improves the wearing comfort of the supporting plate 1.

[0038] As Figure 5 shown, further, the buffer and sound insulation component of the orthosis further includes a forming block 6. When the two buffer blocks 2 abut against each other, the two mounting grooves 11 are connected to form a cavity. The contour of the cavity matches that of the forming block 6. Nail holes 61 penetrating the inner and outer side walls are provided at both ends of the forming block 6.

[0039] Further, positioning holes 62 penetrating the inner and outer side walls are provided at both ends of the forming block 6.

[0040] The forming block 6 is used to assist in the forming of the supporting plate 1. Taking the orthosis for the foot and calf as an example, the operation steps are as follows:

[0041] 1), First, fix the forming block 6 on the calf model (it can be fixed on the calf model by pasting or by driving a long nail 7 into the nail hole 61 of the forming block 6);

[0042] 2), Cover the heated sheet on the calf model equipped with the forming block 6 and perform vacuum forming;

[0043] 3), Trim the formed blank into shape;

[0044] 4), Remove the forming block 6 from the calf model, put it into the trimmed blank, and drill a first through hole 12 in the blank according to the positioning holes 62 on the forming block 6;

[0045] 5), Saw the blank at the ankle position to form two supporting plates 1 respectively used as the foot support and the calf support.

[0046] Thus, the forming block 6 is used to fabricate the supporting plate 1, assist in the forming of the mounting groove 11, and assist the operator in drilling the first through hole 12, reducing the positioning difficulty of the first through hole 12 and improving the processing efficiency of the supporting plate 1.

[0047] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are shown in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields shall be similarly within the scope of the patent protection of the present invention.

Claims

1. A buffer and sound insulation component of an orthosis, characterized in that Comprising: Two pallet plates, the two pallet plates are movably connected, and mounting grooves communicating with their end walls are respectively formed on the inner sides of the adjacent ends of the pallet plates. Buffer blocks are fixedly clamped in the mounting grooves, and the end portions of at least one of the buffer blocks extend beyond the end walls of the corresponding pallet plates. When the adjacent ends of the two pallet plates move close to each other, the two buffer blocks can be used to abut instead of them to buffer the impact.

2. The buffer and noise reduction component of an orthosis according to claim 1, characterized in that, The distance between the two inner side walls of the mounting groove gradually decreases from the inner side of the pallet plate to the inner wall of the mounting groove, and the contour of the buffer block matches that of the mounting groove.

3. The buffer and sound insulation component of an orthosis according to claim 1, characterized in that, The buffer and sound insulation assembly of the orthosis further includes a connecting member, and the buffer block and the pallet plate are rigidly connected through the connecting member.

4. The buffer and sound insulation component of an orthosis according to claim 3, characterized in that, The connecting member includes a nut and a screw. A first through hole communicating with the mounting groove is formed on the outer side of the pallet plate, a second through hole corresponding to the first through hole is formed on the buffer block, the nut is located on the exposed side of the buffer block, the head of the screw abuts against the outer side wall of the pallet plate, and its tip passes through the first through hole, the second through hole and is screwed with the nut.

5. The buffer and sound-absorbing component of an orthosis according to claim 4, characterized in that, A receiving groove communicating with the second through hole is formed on the exposed side of the buffer block, and the nut is placed in the receiving groove.

6. The buffer and sound insulation component of an orthosis according to claim 4, characterized in that, Teeth for restricting its slipping and self-rotation are provided on the nut.

7. The buffer and noise reduction component of an orthosis according to claim 1, characterized in that, A spherical convex block is provided at the end of one of the buffer blocks. When the adjacent ends of the two pallet plates move close to each other, the spherical convex block can abut against the end of the other buffer block.

8. The buffer and sound insulation component of an orthosis according to claim 1, characterized in that, The buffer and sound insulation assembly of the orthosis further includes two flexible pads, and the flexible pads are fixedly laid on the exposed sides of the buffer blocks one by one and are flush with the inner side walls of the corresponding pallet plates.

9. The buffer and sound insulation component of an orthosis according to claim 1, characterized in that, The buffer and sound insulation assembly of the orthosis further includes a molding block. When the two buffer blocks abut against each other, the two mounting grooves are connected to form a cavity, and the contour of the cavity matches that of the molding block.

10. The buffer and sound insulation component of an orthosis according to claim 9, characterized in that, Positioning holes penetrating through the inner and outer side walls are formed at both ends of the molding block.

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