Adjustable knee stabilizing device

Abstract

The invention relates to the technical field of knee assisting, in particular to an adjustable knee stabilizing device which comprises two sets of flexible belts used for being fixed to a thigh and a shank respectively and further comprises two sets of fixing steel plates, the two sets of fixing steel plates are connected through a hinge structure, and the two sets of fixing steel plates are correspondingly arranged on the two sets of flexible belts respectively; and the at least one group of elastic pieces are connected between the two groups of fixed steel plates and are used for keeping the two groups of fixed steel plates in a horizontal state in a natural state. According to the adjustable knee stabilizing device, the flexible belt is detachably connected with the fixing steel plate, it is guaranteed that the device is stably attached to the limb, disassembly, assembly and maintenance are convenient, the dual stabilizing effect is achieved through the elastic piece and the air bag assembly, knee bending is effectively limited, and the stability of the knee is improved. The problems that an existing knee stabilizing device is insufficient in stabilizing effect, low in comfort level, poor in adaptability and the like are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knee assisting technology, and particularly relates to an adjustable knee stabilizing device. BACKGROUND

[0002] At present, most of the knee stabilizing devices on the market adopt rigid supports or simple elastic binding belt structures. The rigid supports can provide strong support stability, but have poor flexibility, easily limit the normal activity range of the knee, and have low wearing comfort. In the existing devices, only elastic components are used to support the knee, and problems such as unstable force transmission and fast component wear often occur. Most of the devices lack a top pressure structure for the knee, and it is difficult to adjust the stability strength of the knee according to the actual use scene, and the stability and comfort cannot be met. SUMMARY

[0003] Therefore, the present application aims to provide an adjustable knee stabilizing device to solve the problem that the existing knee stabilizing devices lack a top pressure structure for the knee.

[0004] In order to achieve the above purpose, the present application provides an adjustable knee stabilizing device, which comprises two groups of flexible belts for fixing on the thighs and shanks, and further comprises: Two groups of fixing steel plates, the two groups of fixing steel plates are connected through a hinge structure, and the two groups of fixing steel plates are respectively arranged on the two groups of flexible belts; At least one elastic member, the elastic member is connected between the two groups of fixing steel plates, and is used to keep the two groups of fixing steel plates in a horizontal state in a natural state; An air bag assembly, the air bag assembly is arranged on the lower side of the two groups of fixing steel plates, and is located between the two groups of flexible belts and connected to the two groups of flexible belts; the air bag assembly has an inflated state and a deflated state, and in the inflated state, the air bag assembly is used to press the knee; When the knee is bent, the two groups of fixing steel plates rotate relative to each other around the hinge structure, the elastic member is stretched and generates a restoring force to straighten the knee; at the same time, the air bag assembly switches to the inflated state to press the knee and limit the bending of the knee, thereby realizing the stability of the knee.

[0005] Further, the flexible belt and the fixing steel plate are detachably connected; specifically, the non-human body contact surface of the flexible belt is provided with a pocket, and the end of the fixing steel plate is inserted into the pocket to realize fixation.

[0006] Further, the human body contact surface of the flexible belt is provided with a strap for fixing on the limb.

[0007] Further, the pocket is provided with a hook for fixing the end of the elastic member.

[0008] Furthermore, the elastic element consists of springs at both ends and a connecting rod connecting the two sets of springs.

[0009] Furthermore, the fixed steel plate is provided with a guide shaft to support the connecting rod and reduce its friction.

[0010] Furthermore, the airbag assembly includes a support fabric connected between the adjacent ends of two sets of flexible strips, with a through hole in the middle of the support fabric and an inflatable annular outer airbag at the bottom of the support fabric.

[0011] Furthermore, the external airbag is connected to a first air guide tube, the other end of which is connected to a first balloon for inflation. The first balloon is equipped with a one-way air valve for one-way air intake, and the external airbag is equipped with a manually openable exhaust valve.

[0012] Furthermore, it also includes a liner between the inner walls of the annular outer airbag, with an inflatable inner airbag located between the liner.

[0013] Furthermore, the inner airbag is connected to a second air guide tube, and the other end of the second air guide tube is connected to a second balloon for inflation. The second balloon is equipped with a one-way air valve that allows air to enter in only one direction, and the inner airbag is equipped with an exhaust valve that can be opened manually.

[0014] The beneficial effects of this invention are as follows: This adjustable knee stabilizing device, through the detachable connection between the flexible band and the fixed steel plate, not only ensures a stable fit between the device and the limb, but also facilitates disassembly and maintenance. It achieves dual stabilization through elastic elements and airbag components, effectively limiting knee flexion and solving the problems of insufficient stabilization, low comfort, and poor adaptability of existing knee stabilizing devices. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the first-view structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the flexible strip structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the second perspective structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the airbag assembly structure according to an embodiment of the present invention; Figure 5 This is a side view of the structure according to an embodiment of the present invention.

[0017] Fig. marked as: 1, flexible belt; 11, bag body; 12, hook; 13, cable tie; 2, fixed steel plate; 3, elastic member; 31, spring; 32, connecting rod; 4, guide shaft; 5, air bag assembly; 51, support cloth; 511, side wing; 512, through hole; 513, lining cloth; 52, outer air bag; 521, first balloon; 522, first air guide pipe; 53, inner air bag; 531, second balloon; 532, second air guide pipe. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with specific examples.

[0019] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as their common meanings to those having ordinary skills in the art to which the present application belongs. The terms "first", "second" and similar terms used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute positions of the described objects change.

[0020] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , an adjustable knee stabilizing device includes two groups of flexible belts 1 for fixing on the thigh and the lower leg respectively, the skin-adhesive surface of the flexible belt 1 is provided with a latex pad, which is suitable for conforming to the uneven profile of the lower leg surface to improve the adhesion and enhance the wearing comfort; the skin contact surface of the latex pad is also formed with anti-slip patterns to enhance the friction with the leg surface and prevent the flexible belt from shifting due to uneven surface; in addition, the inside of the flexible belt 1 is filled with sponge material to further buffer the local pressure and improve the comfort of long-term wearing; further comprising: two groups of fixed steel plates 2, the two groups of fixed steel plates 2 are connected through a hinged structure, and the two groups of fixed steel plates 2 are respectively arranged on the two groups of flexible belts 1; at least one group of elastic members 3, the elastic member 3 is connected between the two groups of fixed steel plates 2, for keeping the two groups of fixed steel plates 2 in a horizontal state in a natural state; An air bag assembly 5 is arranged on the lower side of the two groups of fixed steel plates 2 and between the two groups of flexible belts 1 and connected to the two groups of flexible belts 1; the air bag assembly 5 has an inflated state and a deflated state, in the inflated state, the air bag assembly 5 is used to press the knee; In use, when the knee is bent, the two groups of fixed steel plates 2 rotate relative to each other around the hinge structure, the elastic member 3 is stretched and generates a restoring force to straighten the knee; at the same time, the air bag assembly 5 switches to the inflated state to press the knee, limiting the knee bending, achieving knee stability.

[0021] In this embodiment, in use of the adjustable knee stabilizing device, first, the two groups of flexible belts 1 are fixed on the thighs and calves of the user through the buckles on the body contact surfaces thereof; when the knee of the user is bent, the two groups of fixed steel plates 2 rotate relative to each other around the hinge structure, thereby stretching the elastic member 3 connected therebetween, so that the elastic member 3 generates a restoring force to straighten the knee; at the same time, the air bag assembly 5 is inflated, and the inflated air bag assembly 5 is used to press the knee, cooperating with the restoring force of the elastic member 3 to limit the knee bending, thereby achieving the knee stability.

[0022] Preferably, the flexible belt 1 is detachably connected to the fixed steel plate 2; specifically, the non-body contact surface of the flexible belt 1 is provided with a pocket 11, and the end of the fixed steel plate 2 is inserted into the pocket 11 to realize the fixation. In use of the adjustable knee stabilizing device, first, the ends of the fixed steel plates 2 are respectively inserted into the pockets 11 on the non-body contact surfaces of the two groups of flexible belts 1 to realize the detachable connection of the flexible belt 1 and the fixed steel plate 2.

[0023] Preferably, the body contact surface of the flexible belt 1 is provided with a buckle 13 for fixing on the limb, and the buckle 13 is used to fix the thighs and calves of the user.

[0024] Preferably, the pocket 11 is provided with a hook 12 for fixing the end of the elastic member 3.

[0025] Preferably, the elastic member 3 is composed of two springs 31 at both ends and a connecting rod 32 connecting the two springs 31; the fixed steel plate 2 is provided with a guide shaft 4 for supporting the connecting rod 32 and reducing the friction thereof, and the guide shaft 4 is provided with a limiting groove, and the connecting rod 32 is located in the limiting groove, and the limiting groove is used to limit the position of the elastic member 3. The elastic member 3 adopts a combined structure of two ends of the spring 31 and the middle connecting rod 32, can provide stable and continuous restoring force through the elastic deformation of the spring 31, ensure that the knee can be effectively straightened after being bent, meanwhile, the connecting rod 32 can enhance the overall structural strength of the elastic member 3, avoid the spring 31 from being deviated or excessively deformed when being subjected to force alone, and cooperate with the limiting groove to ensure that the force transmission direction is stable; the guide shaft 4 on the fixed steel plate 2 supports the connecting rod 32, can limit the movement track of the connecting rod 32, make it move smoothly along the preset direction, reduce the contact friction between the connecting rod 32 and the fixed steel plate 2, reduce the wear of the parts, improve the smoothness of the action of the elastic member 3 and the service life of the device, and further ensure the reliability and effectiveness of the knee stability adjustment process.

[0026] Preferably, the air bag assembly 5 comprises a support cloth 51 connected between the adjacent ends of the two groups of flexible belts 1, a through hole 512 is formed in the middle of the support cloth 51, and an annular outer air bag 52 inflatable is arranged at the bottom of the support cloth 51; The outer air bag 52 is communicated with a first air pipe 522, the other end of the first air pipe 522 is communicated with a first balloon 521 for inflation, a one-way air valve for one-way air inlet is arranged on the first balloon 521, and a manually openable air exhaust valve is arranged on the outer air bag 52; In the air bag assembly 5, the through hole 512 in the middle of the support cloth 51 can adapt to the knee part, avoid unnecessary hindrance to the knee movement, and enhance the fit of the device with the knee; after the annular outer air bag 52 at the bottom of the support cloth 51 is inflated, it can form a surrounding pressure from the outer periphery of the knee, uniformly disperse the acting force, improve the knee stability effect, and the annular structure is suitable for the physiological form of the knee, improving the use comfort; the outer air bag 52 is communicated with the first balloon 521 through the first air pipe 522, and cooperates with the one-way air valve on the first balloon 521 to realize convenient and controllable inflation operation, so that the outer air bag 52 can quickly reach the required inflation degree and keep the air pressure stable, and the manually openable air exhaust valve on the outer air bag 52 can flexibly adjust the inflation state of the outer air bag 52 according to actual needs, realize accurate adjustment of the knee stability degree, and the overall structure takes into account stability, comfort and operation convenience.

[0027] Preferably, a lining cloth 513 is arranged between the inner walls of the annular outer air bag 52, and an inner air bag 53 inflatable is arranged between the lining cloths 513; The inner air bag 53 is communicated with a second air pipe 532, the other end of the second air pipe 532 is communicated with a second balloon 531 for inflation, a one-way air valve for one-way air inlet is arranged on the second balloon 531, and a manually openable air exhaust valve is arranged on the inner air bag 53; The inflatable inner air bag 53 cooperates with the annular outer air bag 52 to form a multi-dimensional and wrapping top pressure effect from the inside and outside of the knee, further enhancing the stability effect on the knee, and the inner air bag 53 can adjust the top pressure degree by adjusting the inflation amount, adapt to the knee shape and stability needs of different users; The inner air bag 53 is communicated with the second balloon 531 through the second air pipe 532, and the one-way air valve on the second balloon 531 can independently and conveniently realize inflation and air pressure maintenance, and the manual exhaust valve on the inner air bag 53 is convenient for adjusting the internal pressure alone, so that the device is more excellent in stability performance and use flexibility, and the adaptability and reliability of the device are improved as a whole.

[0028] The working principle is to realize the stability control of the knee by cooperating with multiple components; first, two groups of flexible belts 1 are fixed on the thighs and shanks through the straps 13, the pockets 11 on the non-human contact surfaces are used to install and fix the steel plates 2, so that the steel plates 2 move synchronously with the limbs, and the hooks 12 on the pockets 11 provide end fixing points for the elastic members 3, so as to ensure that the elastic members 3 can stably connect the two groups of fixed steel plates 2. In the natural state, the springs 31 at both ends of the elastic member 3 are in an unstretched state, and the two groups of fixed steel plates 2 are kept horizontal by the connecting rod 32, at this time, the air bag assembly 5 is in a deflated and contracted state, and does not produce additional pressure on the knee. When the knee is bent, the two groups of fixed steel plates 2 rotate relative to the hinge structure, thereby stretching the elastic member 3, the spring 31 deforms to generate a restoring force, the connecting rod 32 moves stably under the support and guidance of the guide shaft 4, and the restoring force is transmitted along the preset direction to drive the knee to tend to be straight; at the same time, the air bag assembly 5 realizes stability assistance by inflation, the through hole 512 in the middle of the supporting cloth 51 is adapted to the position of the knee, the annular outer air bag 52 at the bottom is inflated through the first balloon 521 to form a surrounding top pressure from the outer periphery of the knee, and the inner air bag 53 between the lining cloths 513 is inflated through the second balloon 531 to form a cooperative top pressure from the inner side of the knee. The multi-dimensional wrapping effect of the inner and outer air bags cooperates with the restoring force of the elastic member 3, effectively limiting the bending amplitude of the knee. In addition, the air valves on the outer air bag 52 and the inner air bag 53 can adjust the air pressure respectively to realize precise control of the stability strength, and reliably realize the knee stability function.

[0029] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely exemplary and is not intended to suggest the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in details.

[0030] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. An adjustable knee stabilizer comprising two sets of flexible straps (1) for attachment to the thigh and the lower leg, respectively, characterized in that, Also include: Two groups of fixed steel plate (2), two groups of said fixed steel plate (2) is connected by hinged structure, and two groups of said fixed steel plate (2) is respectively arranged on two groups of said flexible belt (1); At least one group of elastic member (3), said elastic member (3) is connected between two groups of said fixed steel plate (2), for keeping two groups of said fixed steel plate (2) in horizontal state in natural state; Air bag assembly (5), said air bag assembly (5) is arranged in the lower side of two groups of said fixed steel plate (2), and is located between two groups of said flexible belt (1) and is connected two groups of flexible belt (1);The air bag assembly (5) has inflation state and deflation state, in inflation state, said air bag assembly (5) is used for pressing knee; In use, when knee bending, two groups of said fixed steel plate (2) rotates around said hinged structure, said elastic member (3) is stretched and generates the restoring force for driving knee straightening;At the same time, said air bag assembly (5) switches to inflation state to press knee, limit knee bending, realize knee stability.

2. The adjustable knee stabilization device of claim 1, wherein, The flexible belt (1) and fixed steel plate (2) can be detachably connected;Specifically, the non-human contact surface of the flexible belt (1) is provided with a pocket (11), and the end of the fixed steel plate (2) is inserted into the pocket (11) to realize fixation.

3. An adjustable knee stabilisation device according to claim 1 or 2, wherein, The human body contact surface of the flexible belt (1) is provided with a strap (13) for fixing on the limb.

4. The adjustable knee stabilization device of claim 2, wherein, The pocket (11) is provided with a hook (12) for fixing the end of the elastic member (3).

5. The adjustable knee stabilization device of claim 1, wherein, The elastic member (3) is composed of springs (31) at both ends and a connecting rod (32) connecting the two springs (31).

6. The adjustable knee stabilization device of claim 5, wherein, The fixed steel plate (2) is provided with a guide shaft (4) for supporting the connecting rod (32) and reducing friction.

7. The adjustable knee stabilization device of claim 1, wherein, The air bag assembly (5) includes a support cloth (51) connected between adjacent ends of two groups of flexible belt (1), a through hole (512) is formed in the middle of the support cloth (51), and a inflatable annular outer air bag (52) is arranged at the bottom of the support cloth (51).

8. The adjustable knee stabilization device of claim 7, wherein, The outer air bag (52) is communicated with a first air pipe (522), the other end of the first air pipe (522) is communicated with a first balloon (521) for inflation, the first balloon (521) is provided with a one-way air valve for one-way inflation, and the outer air bag (52) is provided with a manually openable exhaust valve.

9. The adjustable knee stabilization device of claim 7, wherein, A lining cloth (513) is arranged between the inner walls of the annular outer air bag (52), and an inflatable inner air bag (53) is arranged between the lining cloths (513).

10. The adjustable knee stabilization device of claim 9, wherein, The inner air bag (53) is communicated with a second air pipe (532), the other end of the second air pipe (532) is communicated with a second balloon (531) for inflation, the second balloon (531) is provided with a one-way air valve for one-way inflation, and the inner air bag (53) is provided with a manually openable exhaust valve.

Images