Elastic connecting piece for knee joint fixing jig

Abstract

The utility model provides an elastic connecting piece for a knee joint fixing jig. The elastic connecting piece comprises a shell and two sets of elastic connecting assemblies. The shell is provided with an installation cavity, two installation columns and two receding openings. Each elastic connecting assembly comprises a strip-shaped plate and a reset elastic piece, one end of each strip-shaped plate is a mounting end, provided with a shaft hole and rotationally mounted in the shell through the corresponding mounting column, and the other end of each strip-shaped plate extends out of the corresponding receding opening to form a swing end. The two sets of elastic connecting assemblies are installed on the shell through the two installation columns and the receding openings correspondingly, the installation ends of the two strip-shaped plates are close to each other, and teeth meshed with each other are arranged on the peripheries of the strip-shaped plates. According to the elastic connecting piece provided by the utility model, when the knee joint is bent, the two strip-shaped plates can be synchronously bent and folded, so that the position or angle of the elastic piece on the leg can be prevented from being greatly changed, and the situation that one of the two reset elastic pieces is fatigued and damaged in advance due to different degrees of use is also avoided; the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of joint fixation device technology, and in particular to an elastic connector for knee joint fixation device. Background Technology

[0002] Knee joint fixation devices are products used to fix and protect the knee joint. They possess elastic properties and can also provide assistance to users when climbing mountains or hills. The elastic connector is a crucial component of the knee joint fixation device, serving both a connecting and elastic repositioning function. Currently, existing elastic connectors on the market have the following drawbacks: their upper and lower connecting rods are relatively independent, failing to create a coordinated effect. During use, the bending of the thigh and lower leg is relative; if the upper and lower connecting rods are not coordinated, uneven swing angles between the two connecting rods can easily occur, leading to overall deflection or deviation from the normal position of the elastic connector, affecting its usability. Furthermore, the springs of the two connecting rods operate in different states, causing the side with greater torsion to be easily damaged, rendering the fixation device unusable. Therefore, this utility model provides a new elastic connector structure that solves the above-mentioned technical problems. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes an elastic connector structure with linkage effect.

[0004] An elastic connector for a knee joint fixation device includes a housing and two sets of elastic connection components, specifically...

[0005] The housing is flat and has an internal mounting cavity. The mounting cavity contains two parallel and spaced mounting posts. Both ends of the housing have clearance openings that connect to the mounting cavity.

[0006] Each set of elastic connection components includes a strip plate and a reset elastic element. One end of the strip plate is a mounting end with a shaft hole, and it is rotatably mounted in the housing via a mounting post. The other end extends from a clearance opening to form a swing end, which can be used to install leg strap components. One end of the reset elastic element is connected to the strip plate, and the other end is connected to the housing, providing a reset force for the strip plate.

[0007] The two sets of elastic connection components are respectively mounted on the housing through two mounting posts and a clearance opening. The mounting ends of the two strip plates are close to each other, and their peripheries are provided with interlocking teeth. The two strip plates are linked by the interlocking teeth, so that they can form a synchronous bending action during use.

[0008] The elastic connector provided by this utility model is applied to a knee joint fixation device. The upper and lower strip plates are engaged by gears. When the user bends the knee joint, the two strip plates can bend and fold synchronously, thereby avoiding large changes in the position or angle of the elastic element on the leg, which would affect the use of the product. In addition, the synchronous bending of the two strip plates can also prevent the two reset elastic elements from fatigued and damaged prematurely due to different degrees of use, thus improving the service life of the product.

[0009] Preferably, the two sets of elastic connection components are installed symmetrically, so that they do not need to be distinguished as top and bottom when in use, making them convenient to use.

[0010] Preferably, the relief opening is flat, with a first limiting block and a second limiting block at each end. When the two strip plates press against the first limiting block, they are collinear, which can prevent the knee joint from bending in the opposite direction and protect the knee joint.

[0011] Preferably, the two reset elastic elements provide a force for the two plates to return to a collinear state, thereby providing the user with the force to straighten their legs, such as in the application scenario of climbing stairs.

[0012] Preferably, to reduce the thickness of the elastic connector, the reset elastic element is a spring-loaded sheet, with one end fixedly mounted on the mounting post and the other end fixedly mounted on the strip plate.

[0013] Preferably, the strip is made of metal, which has high strength and high protective effect.

[0014] Preferably, to adjust the elasticity of the strip plate, an elasticity adjustment assembly is also included. There are two sets of the elasticity adjustment assembly, each corresponding to one of the two sets of elastic connection components. Each set includes an adjusting member and a reinforcing elastic member. One end of the reinforcing elastic member is connected to the strip plate, and the other end is connected to the adjusting member. The adjusting member is movably mounted on the housing and has a stop structure between it and the housing. The adjusting member adjusts the stop position through the stop structure and adjusts the elasticity of the reinforcing elastic member, thereby adjusting the overall elasticity of the strip plate.

[0015] Preferably, the adjusting member is slidably mounted on the housing, the reinforcing elastic member is a spring, and the adjusting member adjusts the tension of the reinforcing elastic member on the strip plate by sliding the adjusting position and the stretching length of the reinforcing elastic member.

[0016] Preferably, the gear structure includes a rack and gear teeth. The rack is disposed on one of the housing and the adjusting member, and the gear teeth are disposed on the other of the housing and the adjusting member. The gear teeth are engaged with different tooth grooves in the rack by sliding the adjusting member, thereby adjusting the tensile length of the reinforcing elastic member.

[0017] Preferably, the housing includes a mounting base and a cover plate, which is easy to form and also easy to install other components.

[0018] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0019] The elastic connector provided by this utility model is applied to a knee joint fixation device. The upper and lower strip plates are meshed by gears. When the user bends the knee joint, the two strip plates can bend and fold synchronously, thereby avoiding large changes in the position or angle of the elastic element on the leg, which would affect the use of the product. In addition, the synchronous bending of the two strip plates can also prevent the two reset elastic elements from fatigued and damaged prematurely due to different degrees of use, thus improving the service life of the product.

[0020] The two sets of elastic connection components are installed symmetrically, so there is no need to distinguish between the top and bottom, which is convenient for use;

[0021] Setting a limiting block in the clearance notch can prevent excessive bending and improve the protection effect;

[0022] Using a spring-loaded sheet reduces the thickness of the elastic connector, improving wearing comfort;

[0023] The elasticity adjustment component is provided so that the elasticity of the strip plate can be adjusted, thereby improving the flexibility of the product in use. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0025] in:

[0026] Figure 1 Axial view of an elastic connector for a knee joint fixation device Figure 1 ;

[0027] Figure 2 Axial view of an elastic connector for a knee joint fixation device Figure 2 ;

[0028] Figure 3 Axial view of an elastic connector for a knee joint fixation device Figure 3 ;

[0029] Figure 4 An explosion of an elastic connector for a knee joint fixation device Figure 1 (Initial state)

[0030] Figure 5An explosion of an elastic connector for a knee joint fixation device Figure 2 ;

[0031] Figure 6 This is a front view of an elastic connector for a knee joint fixation device; (bent state, with the cover plate of the hidden housing).

[0032] Figures 1 to 6 The markings are as follows: housing 1, mounting cavity 11, mounting column 12, clearance port 13, first limit block 131, second limit block 132, rack 14, reset elastic element 2, strip plate 3, mounting end 31, swing end 32, reinforcing elastic element 4, adjusting element 5, gear tooth 51. Detailed Implementation

[0033] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0034] Please see Figures 1 to 6 An elastic connector for a knee joint fixation device includes a housing 1 and two sets of elastic connection components. Specifically,

[0035] The housing 1 is flat and has an internal mounting cavity 11. The mounting cavity 11 contains two parallel, spaced-apart mounting posts 12. Both ends of the housing 1 have clearance openings 13 that connect to the mounting cavity 11. Preferably, the housing 1 includes a mounting base and a cover plate, which is easy to form and also facilitates the installation of other components.

[0036] Each of the aforementioned elastic connection components includes a strip plate 3 and a reset elastic element 2. Preferably, the strip plate 3 is made of metal, which has high strength and high protective effect. In addition, to reduce the thickness of the elastic connection component, the reset elastic element 2 is a spring-loaded sheet, with one end fixedly mounted on the mounting post 12 and the other end fixedly mounted on the strip plate 3.

[0037] One end of the strip plate 3 is a mounting end 31 with a shaft hole, and is rotatably mounted in the housing 1 via a mounting post 12. The other end extends from a relief opening 13 to form a swing end 32, which can be used to install leg strap components. One end of the reset elastic member 2 is connected to the strip plate 3, and the other end is connected to the housing 1, providing a reset force for the strip plate 3.

[0038] The two sets of elastic connecting components are respectively mounted on the housing 1 via two mounting posts 12 and clearance openings 13. The mounting ends 31 of the two strip plates 3 are close to each other, and their peripheries are provided with interlocking teeth. The two strip plates 3 are linked by the interlocking teeth, thereby forming a synchronous bending action during use. Preferably, the two sets of elastic connecting components are symmetrically installed, so that there is no need to deliberately distinguish between the top and bottom during use, which is convenient for use.

[0039] In one embodiment, the clearance opening 13 is flat, with a first limiting block 131 and a second limiting block 132 at each end. When the two strip plates 3 are pressed against the first limiting block 131, they are collinear, which can prevent the knee joint from bending backward and protect the knee joint. In addition, the two reset elastic members 2 provide a force for the two strip plates 3 to return to the collinear state, thereby providing the user with the force to straighten the leg, such as in the application scenario of climbing stairs.

[0040] Based on the above embodiments, to adjust the elasticity of the strip plate 3, an elasticity adjustment assembly is also included. There are two sets of the elasticity adjustment assembly, each corresponding to one of the two sets of elastic connection components. Each set includes an adjusting member 5 and a reinforcing elastic member 4. One end of the reinforcing elastic member 4 is connected to the strip plate 3, and the other end is connected to the adjusting member 5. The adjusting member 5 is movably mounted on the housing 1 and has a stop structure between it and the housing 1. The adjusting member 5 adjusts the stop through the stop structure, thereby adjusting the elasticity of the reinforcing elastic member 4 and thus adjusting the overall elasticity of the strip plate 3.

[0041] Furthermore, the adjusting member 5 is slidably mounted on the housing 1, and the reinforcing elastic member 4 is a spring. The adjusting member 5 adjusts the tension of the reinforcing elastic member 4 on the strip plate 3 by sliding the adjusting position and the stretching length of the reinforcing elastic member 4.

[0042] The gear shift structure includes a rack 14 and shift teeth 51. The rack 14 is disposed on one of the housing 1 and the adjusting member 5, and the shift teeth 51 is disposed on the other of the housing 1 and the adjusting member 5. For example, in this embodiment, the rack 14 is disposed on the inner side of the housing 1 (or it can be disposed on the outer side, where the gear shift structure has a stronger locking force under the tension of the reinforcing elastic member 4), and the shift teeth 51 are disposed on the adjusting member 5 and fit against the rack 14. In use, the user pushes the push button exposed on the housing 1 of the adjusting member 5, which moves the shift teeth 51. The shift teeth 51 are engaged with different slots in the rack 14 by the sliding of the adjusting member 5, thereby adjusting the stretching length of the reinforcing elastic member 4.

[0043] The elastic connector provided by this utility model is applied to a knee joint fixation device. The upper and lower strip plates 3 are engaged by gears. When the user bends the knee joint, the two strip plates 3 can bend and fold synchronously, thereby avoiding large changes in the position or angle of the elastic element on the leg, which would affect the use of the product. In addition, the synchronous bending of the two strip plates 3 can also prevent the two reset elastic elements 2 from fatigued and damaged prematurely due to different degrees of use, thus improving the service life of the product.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. An elastic connector for a knee joint fixation device, characterized in that, Includes a housing and two sets of flexible connection components; The housing is flat and has an internal mounting cavity. The mounting cavity contains two parallel and spaced mounting posts. Both ends of the housing have clearance openings that connect to the mounting cavity. Each set of elastic connection components includes a strip plate and a reset elastic element. One end of the strip plate is a mounting end, which is rotatably mounted in the housing via a mounting post. The other end extends from a clearance opening to form a swing end. One end of the reset elastic element is connected to the strip plate, and the other end is connected to the housing, providing a reset force for the strip plate. The two sets of elastic connection components are respectively mounted on the housing via two mounting posts and clearance openings. The mounting ends of the two strip plates are close to each other, and their peripheries are provided with interlocking teeth. The two strip plates are linked together through the interlocking teeth.

2. The elastic connector for a knee joint fixation device according to claim 1, characterized in that, The two sets of elastic connection components are installed symmetrically.

3. The elastic connector for a knee joint fixation device according to claim 1, characterized in that, The clearance opening is flat, with a first limiting block and a second limiting block at each end. The two strip plates are collinear when they press against the first limiting block.

4. The elastic connector for a knee joint fixation device according to claim 1, characterized in that, The two reset elastic elements provide a force for the two plates to return to a collinear state.

5. The elastic connector for a knee joint fixation device according to claim 1, characterized in that, The reset elastic element is a spring-loaded sheet, with one end fixedly mounted on the mounting post and the other end fixedly mounted on the strip plate.

6. The elastic connector for a knee joint fixation device according to claim 1, characterized in that, The strip is made of metal.

7. The elastic connector for a knee joint fixation device according to claim 1, characterized in that, It also includes an elastic adjustment component, which has two sets, corresponding to the two sets of elastic connection components. Each set includes an adjustment component and a reinforcing elastic component. One end of the reinforcing elastic component is connected to a strip plate, and the other end is connected to the adjustment component. The adjustment component is movably mounted on the housing and has a stop structure between it and the housing. The adjustment component adjusts the stop position through the stop structure and adjusts the elasticity of the reinforcing elastic component.

8. The elastic connector for a knee joint fixation device according to claim 7, characterized in that, The adjusting component is slidably mounted on the housing, and the reinforcing elastic component is a spring. The adjusting component adjusts the position and the extension length of the reinforcing elastic component by sliding.

9. The elastic connector for a knee joint fixation device according to claim 8, characterized in that, The gear mechanism includes a rack and gear teeth. The rack is disposed on one of the housing and the adjusting component, and the gear teeth are disposed on the other of the housing and the adjusting component. The gear teeth are engaged with different slots in the rack by sliding the adjusting component.

10. The elastic connector for a knee joint fixation device according to claim 1, characterized in that, The housing includes a mounting base and a cover plate.

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