Knee joint resistance training device

Abstract

The present invention discloses a knee joint resistance training device, comprising a thigh fixing rod, a calf fixing rod, a pair of thigh fixators, a pair of calf fixators, a tension spring, and a plurality of buffer mechanisms, wherein the other ends of the plurality of buffer mechanisms are all arranged on the annular airbag of the air source, the buffer mechanism comprising a first buffer movement mechanism and a second buffer movement mechanism, the first buffer movement mechanism being arranged on the annular airbag, wherein an adjustment mechanism is arranged in the receiving groove of the adjustment limit block, the adjustment mechanism comprising a sliding assembly, a step rod, and a connecting rod mechanism, the sliding assembly being arranged in the receiving groove, and the connecting rod mechanism being arranged on the step rod. Due to the tension spring and the plurality of buffer mechanisms provided in the device, a good buffering effect can be provided during exercise, and the annular airbag realizes inflation and pressure maintenance, so that the thigh fixator and the calf fixator are fixed to the user's thigh and calf, respectively, to achieve a buffering effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a knee joint resistance training device. Background Art

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials, and other similar or related items that are used directly or indirectly on the human body, including the required computer software. The medical device industry involves multiple industries such as medicine, machinery, electronics, and plastics. It is a multidisciplinary, knowledge-intensive, and capital-intensive high-tech industry. The basic characteristics of high-tech medical equipment are digitization and computerization. It is the crystallization of multidisciplinary and cross-domain modern high technology. Its products have high technical content and high profits. Therefore, it is the commanding heights of competition among major scientific and technological powers and large international companies, and the entry threshold is high. However, the existing resistance training devices have poor impedance effects in knee joint rehabilitation training, resulting in slow knee joint recovery training. In addition, there is no device to protect the knee joint during exercise, making it easy to get injured during exercise. Summary of the Invention

[0003] In view of this, the present invention provides a knee joint resistance training device to solve the above technical problems.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A knee joint resistance training device, comprising:

[0006] Thigh bar;

[0007] A calf fixing rod, wherein the thigh fixing rod and the calf fixing rod are hinged together via a rotating shaft;

[0008] A pair of thigh fixators; the pair of thigh fixators are both fixed on the thigh fixation rod, and the pair of thigh fixators are spaced apart;

[0009] A pair of calf fixators, both of which are fixed on the calf fixation rod, and the pair of calf fixators are spaced apart from each other, and an air source is installed on both the pair of thigh fixators and the pair of calf fixators;

[0010] A tension spring, with both ends of the tension spring respectively arranged between the fixed limit block of the thigh fixing rod and the adjustable limit block of the calf fixing rod;

[0011] a plurality of buffer mechanisms, one end of each of the buffer mechanisms being disposed on the inner side of the thigh fixator or the calf fixator, and the other end of each of the buffer mechanisms being disposed on the annular airbag of the air source, the buffer mechanisms comprising a first buffer movement mechanism and a second buffer movement mechanism, the first buffer movement mechanism being disposed on the annular airbag, the second buffer movement mechanism being disposed on the inner sidewall of the thigh fixator or the calf fixator, and the first buffer movement mechanism and the second buffer movement mechanism being slidably connected to each other;

[0012] Wherein, an adjustment mechanism is provided in the receiving groove of the adjustment limit block, and the adjustment mechanism includes a sliding assembly, a step rod and a connecting rod mechanism. The sliding assembly is arranged in the receiving groove, and the sliding assembly extends into the through groove of the calf fixing rod and is engaged with the clamping groove of the calf fixing rod. The step rod is arranged in the receiving groove, and the connecting rod mechanism is arranged on the step rod, and the connecting rod mechanism and the sliding assembly are hinged together;

[0013] The first buffer movement mechanism includes a pair of pressure blocks, a second slide bar, a pair of sliders and a pair of pressure bars, the pair of pressure blocks are connected to the annular airbag, the second slide bar passes through the pair of pressure blocks and extends to both ends, the pair of sliders are slidably connected to the second slide bar, and the pair of sliders are pressed against the corresponding pressure blocks, and the pair of pressure bars are respectively fixed to the lower ends of the corresponding sliders;

[0014] Furthermore, the second buffer movement mechanism includes a pair of arc rods, a pair of fixing frames, a pair of third compression springs and a pair of buffer sliders. The pair of arc rods are both arranged on the inner side wall of the thigh fixer or the calf fixer, the pair of fixing frames are respectively arranged at the side ends of the corresponding arc rods, the pair of third compression springs are respectively accommodated in the sliding grooves of the corresponding arc rods, the pair of buffer sliders are respectively fixed to the corresponding third compression springs, and the pair of buffer sliders are respectively slidably connected to the corresponding sliding grooves.

[0015] Furthermore, the sliding assembly includes a first sliding rod and a pair of movable plates, the first sliding rod is arranged in the accommodating groove, the pair of movable plates are both slidably connected to the first sliding rod, and the pair of movable plates are both integrally connected with a latching protrusion, and the latching protrusion is engaged with the latching groove.

[0016] Furthermore, a first compression spring is sleeved on the first slide bar, and two ends of the first compression spring are respectively pressed between a pair of movable plates.

[0017] Furthermore, the connecting rod mechanism includes a turntable, a pair of first connecting rods and a pair of second connecting rods. The turntable is rotatably connected to the step rod, the pair of first connecting rods are both connected to the outer periphery of the turntable, and the two ends of the pair of second connecting rods are respectively hinged to the corresponding first connecting rods and the corresponding movable plates.

[0018] Furthermore, a second compression spring is sleeved on the second slide bar, and two ends of the second compression spring are respectively pressed between a pair of slide blocks.

[0019] Furthermore, the guide block of the pressure rod is slidably connected to the sliding groove, and a pair of guide blocks are respectively pressed against corresponding buffer sliding blocks.

[0020] Furthermore, the air source is externally connected to an inflation tube, and the air source is communicated with the annular airbag through the inflation tube.

[0021] Furthermore, each of the pair of thigh fixators is connected to a pair of first straps, and each of the pair of calf fixators is connected to a pair of second straps.

[0022] As can be seen from the above technical solution, the advantages of the present invention are: due to the tension spring and several buffer mechanisms provided in the device, a good buffering effect can be provided during exercise, and the annular airbag is inflated and pressure-maintained, so that the thigh fixator and the calf fixator are fixed to the user's thigh and calf respectively, thereby achieving a buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 This is a diagram showing the matching relationship between the adjustment limit block and the calf fixing rod of the present invention.

[0026] Figure 3 for Figure 2 A partial enlarged view of point A.

[0027] Figure 4 It is a top view of the present invention.

[0028] Figure 5 for Figure 4 A local enlarged view of point B.

[0029] Figure 6 for Figure 5 A partial enlarged view of point C.

[0030] List of reference numerals: thigh fixator 1, first strap 11, calf fixator 2, second strap 21, thigh fixing rod 3, rotating shaft 4, calf fixing rod 5, through groove 51, locking groove 52, tension spring 6, fixed limit block 61, adjustment limit block 62, accommodating groove 621, adjustment mechanism 7, first sliding rod 71, first compression spring 711, step rod 72, movable plate 73, locking protrusion 731, turntable 74, first connecting rod 75, second connecting rod 76, air source 8, inflation tube 81, annular airbag 82, buffer mechanism 9, pressure block 91, second sliding rod 92, second compression spring 921, slider 93, pressure rod 94, guide block 941, arc rod 95, fixing frame 951, slide groove 952, third compression spring 96, buffer slider 97. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0032] Combine Figures 1 to 6 ,like Figure 1 、 Figure 2 and Figure 3The knee joint resistance exercise device shown in the figure is composed of a thigh fixing rod 3, a calf fixing rod 5, a pair of thigh fixers 1, a pair of calf fixers 2, a tension spring 6 and a plurality of buffer mechanisms 9. The thigh fixing rod 3 and the calf fixing rod 5 are hinged together by a rotating shaft 4; the pair of thigh fixers 1 are fixed on the thigh fixing rod 3, and the pair of thigh fixers 1 are spaced apart; the pair of calf fixers 2 are fixed on the calf fixing rod 5, and the pair of calf fixers 2 are spaced apart, and an air source 8 is installed on the pair of thigh fixers 1 and the pair of calf fixers 2; the two ends of the tension spring 6 are respectively arranged between the fixed limit block 61 of the thigh fixing rod 3 and the adjustment limit block 62 of the calf fixing rod 5; one end of a plurality of buffer mechanisms 9 are arranged on the inner side of the thigh fixer 1 or the calf fixer 2, and the other end of a plurality of buffer mechanisms 9 are arranged It is arranged on the annular airbag 82 of the air source 8, and the buffer mechanism 9 includes a first buffer movement mechanism and a second buffer movement mechanism, the first buffer movement mechanism is arranged on the annular airbag 82, and the second buffer movement mechanism is arranged on the inner wall of the thigh fixer 1 or the calf fixer 2, and the first buffer movement mechanism and the second buffer movement mechanism are slidably connected; wherein, an adjustment mechanism 7 is provided in the accommodating groove 621 of the adjustment limit block 62, and the adjustment mechanism 7 includes a sliding assembly, a step rod 72 and a connecting rod mechanism, the sliding assembly is arranged in the accommodating groove 621, and the sliding assembly extends into the through groove 51 of the calf fixing rod 5 and is engaged with the card slot 52 of the calf fixing rod 5, the step rod 72 is arranged in the accommodating groove 621, the connecting rod mechanism is arranged on the step rod 72, and the connecting rod mechanism is hinged to the sliding assembly.

[0033] Preferably, the sliding assembly includes a first sliding rod 71 and a pair of movable plates 73, the first sliding rod 71 is arranged in the accommodating groove 621, the pair of movable plates 73 are both slidably connected to the first sliding rod 71, and a locking protrusion 731 is integrally connected to the pair of movable plates 73, and the locking protrusion 731 is engaged with the locking groove 52.

[0034] Preferably, a first compression spring 711 is sleeved on the first sliding rod 71 , and two ends of the first compression spring 711 are respectively pressed between a pair of movable plates 73 .

[0035] Preferably, the connecting rod mechanism includes a turntable 74, a pair of first connecting rods 75 and a pair of second connecting rods 76. The turntable 74 is rotatably connected to the step rod 72. The pair of first connecting rods 75 are both connected to the outer periphery of the turntable 74. The two ends of the pair of second connecting rods 76 are respectively hinged to the corresponding first connecting rods 75 and the corresponding movable plates 73.

[0036] like Figure 5 As shown, the first buffer movement mechanism includes a pair of pressure blocks 91, a second slide bar 92, a pair of sliders 93 and a pair of pressure bars 94. The pair of pressure blocks 91 are connected to the annular airbag 82. The second slide bar 92 passes through the pair of pressure blocks 91 and extends to both ends. The pair of sliders 93 are slidably connected to the second slide bar 92, and the pair of sliders 93 are pressed against the corresponding pressure blocks 91. The pair of pressure bars 94 are respectively fixed to the lower ends of the corresponding sliders 93.

[0037] Preferably, a second compression spring 921 is sleeved on the second slide bar 92 , and two ends of the second compression spring 921 are respectively pressed between a pair of sliders 93 .

[0038] like Figure 6 As shown, the second buffer movement mechanism includes a pair of arc rods 95, a pair of fixing frames 951, a pair of third compression springs 96 and a pair of buffer sliders 97. The pair of arc rods 95 are both arranged on the inner side wall of the thigh fixer 1 or the calf fixer 2, the pair of fixing frames 951 are respectively arranged at the side ends of the corresponding arc rods 95, the pair of third compression springs 96 are respectively accommodated in the corresponding sliding grooves 952 of the arc rods 95, the pair of buffer sliders 97 are respectively fixed to the corresponding third compression springs 96, and the pair of buffer sliders 97 are respectively slidably connected to the corresponding sliding grooves 952.

[0039] Preferably, the guide block 941 of the pressure rod 94 is slidably connected to the sliding groove 952 , and a pair of guide blocks 941 are respectively pressed against the corresponding buffer sliding blocks 97 .

[0040] like Figure 4 As shown, the gas source 8 is externally connected to an inflation tube 81 , and the gas source 8 is connected to the annular airbag 82 through the inflation tube 81 .

[0041] Preferably, each pair of thigh fixators 1 is connected to a pair of first straps 11 , and each pair of calf fixators 2 is connected to a pair of second straps 21 .

[0042] Working process: Before exercising, start the air source 8, the annular airbag 82 is inflated and pressure-maintained, and the maintained air pressure is controlled by the overflow valve, so that the thigh fixator 1 and the calf fixator 2 are fixed to the user's thigh and calf respectively, which plays a buffering role; when installing the tension spring 6, press the pair of movable plates 73, so that the pair of first connecting rods 75 and the pair of second connecting rods 76 move, and the first compression spring 711 is squeezed, so that the entire installation process has a good buffering effect, and the movable plate 73 can be firmly clamped in the card slot 52. During exercise, the annular airbag 82 presses the pressure block 91 to move it, driving the slider 93 to move, so that The second compression spring 921 is squeezed, so that the entire exercise process has a good buffering effect. The movement of the slider 93 drives the pressure rod 94 to move, so that the guide block 941 moves, and the buffer slider 97 is squeezed, so that the third compression spring 96 is squeezed, and the buffering performance of the entire exercise process is further improved; in summary, due to the tension spring 6 and several buffer mechanisms 9 provided in the present device, a good buffering effect can be provided during exercise, and the annular airbag 82 is inflated and pressure-maintained, so that the thigh fixer 1 and the calf fixer 2 are fixed to the user's thigh and calf respectively, thereby achieving a buffering effect.

[0043] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A knee joint resistance training device, characterized in that: include: Thigh fixing rod (3); A calf fixing rod (5), wherein the thigh fixing rod (3) and the calf fixing rod (5) are hinged together via a rotating shaft (4); A pair of thigh fixators (1); the pair of thigh fixators (1) are both fixed on the thigh fixation rod (3), and the pair of thigh fixators (1) are spaced apart; A pair of calf fixators (2), the pair of calf fixators (2) are both fixed on the calf fixation rod (5), and the pair of calf fixators (2) are spaced apart, and an air source (8) is installed on the pair of thigh fixators (1) and the pair of calf fixators (2); A tension spring (6), wherein both ends of the tension spring (6) are respectively arranged between the fixed limit block (61) of the thigh fixing rod (3) and the adjustable limit block (62) of the calf fixing rod (5); A plurality of buffer mechanisms (9), one end of each of the buffer mechanisms (9) is arranged on the inner side of the thigh fixator (1) or the calf fixator (2), and the other end of each of the buffer mechanisms (9) is arranged on the annular airbag (82) of the air source (8), the buffer mechanism (9) includes a first buffer movement mechanism and a second buffer movement mechanism, the first buffer movement mechanism is arranged on the annular airbag (82), the second buffer movement mechanism is arranged on the inner side wall of the thigh fixator (1) or the calf fixator (2), and the first buffer movement mechanism and the second buffer movement mechanism are slidably connected; wherein an adjusting mechanism (7) is provided in the receiving groove (621) of the adjusting limit block (62), and the adjusting mechanism (7) comprises a sliding assembly, a step rod (72) and a connecting rod mechanism; the sliding assembly is arranged in the receiving groove (621), and the sliding assembly extends into the through groove (51) of the calf fixing rod (5) and is engaged with the clamping groove (52) of the calf fixing rod (5); the step rod (72) is arranged in the receiving groove (621), the connecting rod mechanism is arranged on the step rod (72), and the connecting rod mechanism and the sliding assembly are hinged together; The first buffer movement mechanism includes a pair of pressure blocks (91), a second slide bar (92), a pair of sliders (93) and a pair of pressure bars (94). The pair of pressure blocks (91) are connected to the annular airbag (82). The second slide bar (92) is provided with a pair of pressure blocks (91) and extends to both ends. The pair of sliders (93) are slidably connected to the second slide bar (92), and the pair of sliders (93) are pressed against the corresponding pressure blocks (91). The pair of pressure bars (94) are respectively fixed to the lower ends of the corresponding sliders (93). The second buffer movement mechanism includes a pair of arc rods (95), a pair of fixing frames (951), a pair of third compression springs (96) and a pair of buffer sliders (97). The pair of arc rods (95) are both arranged on the inner side wall of the thigh fixer (1) or the calf fixer (2). The pair of fixing frames (951) are respectively arranged on the side ends of the corresponding arc rods (95). The pair of third compression springs (96) are respectively accommodated in the sliding grooves (952) of the corresponding arc rods (95). The pair of buffer sliders (97) are respectively fixed to the corresponding third compression springs (96), and the pair of buffer sliders (97) are respectively slidably connected to the corresponding sliding grooves (952).

2. The knee joint resistance training device according to claim 1, characterized in that: The sliding assembly includes a first sliding rod (71) and a pair of movable plates (73), wherein the first sliding rod (71) is arranged in the accommodating groove (621), the pair of movable plates (73) are both slidably connected to the first sliding rod (71), and the pair of movable plates (73) are both integrally connected with a locking protrusion (731), and the locking protrusion (731) is engaged with the locking groove (52).

3. The knee joint resistance training device according to claim 2, characterized in that: A first compression spring (711) is sleeved on the first slide bar (71), and two ends of the first compression spring (711) are respectively pressed between a pair of movable plates (73).

4. The knee joint resistance training device according to claim 3, characterized in that: The link mechanism comprises a rotating disk (74), a pair of first connecting rods (75) and a pair of second connecting rods (76); the rotating disk (74) is rotatably connected to the step rod (72); the pair of first connecting rods (75) are both connected to the outer periphery of the rotating disk (74); and the two ends of the pair of second connecting rods (76) are respectively hinged to the corresponding first connecting rods (75) and the corresponding movable plates (73).

5. The knee joint resistance training device according to claim 4, characterized in that: A second compression spring (921) is sleeved on the second slide bar (92), and two ends of the second compression spring (921) are respectively pressed between a pair of slide blocks (93).

6. The knee joint resistance training device according to claim 5, characterized in that: The guide block (941) of the pressure rod (94) is slidably connected to the slide groove (952), and a pair of guide blocks (941) are respectively pressed against corresponding buffer sliders (97).

7. The knee joint resistance training device according to claim 6, characterized in that: The gas source (8) is externally connected to an inflation tube (81), and the gas source (8) is connected to the annular airbag (82) through the inflation tube (81).

8. The knee joint resistance training device according to claim 7, characterized in that: A pair of thigh fixators (1) are both connected to a pair of first straps (11), and a pair of calf fixators (2) are both connected to a pair of second straps (21).

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