A knee brace

Abstract

The utility model provides a kind of knee protector, since including knee protector main body, knee protector main body has first connecting end and the second connecting end opposite with first connecting end, first connecting end is connected with second connecting end, to make the side wall of knee protector main body around form to wrap around knee wrapping space, so that user can first wrap knee protector main body on knee, to make wrapping space wrap around and fix knee, let knee protector main body provide stable support and protection for knee.

Description

Technical Field

[0001] This utility model relates to the field of protective gear, and in particular to a knee brace. Background Technology

[0002] The knee joint is an important weight-bearing joint in the human body, bearing enormous pressure during exercise, labor, and daily life. Therefore, there is an urgent need on the market for a knee brace that can prevent knee damage, relieve knee pressure, keep warm, prevent arthritis, and accelerate the recovery process, thus effectively protecting the knees. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this utility model provides a knee brace, comprising: The knee brace body has a first connecting end and a second connecting end opposite to the first connecting end, the first connecting end being connected to the second connecting end so that the sidewalls of the knee brace body surround to form a wrapping space for wrapping the knee; it also includes a first reinforcing band and a second reinforcing band, the first reinforcing band having a first end and a second end, the second reinforcing band having a third end and a fourth end, the knee brace body having a first side and a second side opposite to the first side, the first end being connected to the first side, the second end being detachably connected to the second side; the third end being connected to the second side, the fourth end being detachably connected to the first side, and the first reinforcing band and the second reinforcing band being arranged in a cross shape; The knee brace body has an outer surface and an inner surface. The outer surface includes a front surface and a rear surface opposite to the front surface, and also includes a first extension band. The first reinforcing band and a second reinforcing band extend along the front surface. One end of the first extension band is connected to the first reinforcing band, and the other end of the first extension band is connected to the second reinforcing band. The first extension band extends along the rear surface. Both ends of the first extension band are connected to the two sides of the rear surface. The middle part of the first extension band is connected to the middle part of the rear surface. The first extension strip is a V-shaped first extension strip, and the second extension strip is a V-shaped second extension strip.

[0004] The beneficial effects of this utility model are as follows: This utility model provides a knee brace, which includes a knee brace body having a first connecting end and a second connecting end opposite to the first connecting end. The first connecting end and the second connecting end are connected so that the sidewall of the knee brace body surrounds to form a wrapping space for wrapping the knee. It also includes a first reinforcing band and a second reinforcing band. The first reinforcing band has a first end and a second end, and the second reinforcing band has a third end and a fourth end. The knee brace body has a first side and a second side opposite to the first side. The first end is connected to the first side, and the second end is detachably connected to the second side. The third end is connected to the second side, and the fourth end is detachably connected to the first side. The first reinforcing band and the second reinforcing band are arranged in a cross shape. The knee brace body has an outer surface and an inner surface. The outer surface includes a front surface and a rear surface opposite to the front surface. It also includes a first extension band. The first reinforcing band and the second reinforcing band extend along the front surface. The surface extends, with one end of the first extension band connected to the first reinforcing band and the other end connected to the second reinforcing band, and the first extension band extending along the rear surface; both ends of the first extension band are connected to the two sides of the rear surface; the middle of the first extension band is connected to the middle of the rear surface; the first extension band is V-shaped, and the second extension band is V-shaped, allowing the user to first wrap the knee brace body around the knee, so that the wrapping space secures the knee, allowing the knee brace body to provide stable support and protection for the knee. At the same time, the elastic V-shaped first extension band can further tighten the rear surface of the knee brace body to the knee, and the V-shaped first extension band has the effect of lifting the knee brace body, which can prevent the knee brace body from slipping off the knee; the elastic V-shaped second extension band can further tighten the rear surface of the knee brace body to the knee, and the V-shaped second extension band has the effect of lifting the knee brace body, which can prevent the knee brace body from slipping off the knee. Attached Figure Description

[0005] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is another exploded view of the present invention; Figure 4is a cross-sectional view taken along the first I-shaped fastener; Figure 5 is Figure 4 an enlarged view of portion A; Figure 6 is another schematic view of the overall structure of the present invention; Figure 7 is another exploded view of the present invention; Figure 8 is a schematic structural view of the first hook fastener; Figure 9 is a cross-sectional view taken along the first hook fastener; Figure 10 is Figure 9 an enlarged view of portion B; Figure 11 is a further schematic view of the overall structure of the present invention; Figure 12 is a further exploded view of the present invention; Figure 13 is Figure 11 an enlarged view of portion C; Figure 14 is still another schematic view of the overall structure of the present invention; Figure 15 is still another exploded view of the present invention; Figure 16 is a schematic view of the button structure of the present invention; Figure 17 is Figure 14 an enlarged view of portion D; Figure 18 is still another schematic view of the overall structure of the present invention; Figure 19 is still another exploded view of the present invention; Figure 20 is a schematic structural view of the first rectangular adjuster of the present invention; Figure 21 is Figure 18 an enlarged view of portion E; Figure 22 is a schematic structural view of the first rectangular adjuster of the present invention; Figure 23 is still another schematic view of the overall structure of the present invention; Figure 24 is still another exploded view of the present invention; Figure 25 is Figure 23 an enlarged view of portion F; Figure 26 is another schematic view of the overall structure of the present invention; Figure 27 is another schematic view of the overall structure of the present invention; Figure 28 is a cross-sectional view taken along the patella protection ring. Detailed Description of the Preferred Embodiments

[0008] referring to Figures 1-28 , a knee pad, characterized by comprising: The knee brace body 1 has a first connecting end 11 and a second connecting end 12 opposite to the first connecting end 11. The first connecting end 11 and the second connecting end 12 are connected so that the sidewalls of the knee brace body 1 surround to form a wrapping space 131 for wrapping the knee. With the above structure, since the knee brace body 1 has a first connecting end 11 and a second connecting end 12 opposite to the first connecting end 11, and the first connecting end 11 and the second connecting end 12 are connected so that the sidewalls of the knee brace body 1 surround to form a wrapping space 131 for wrapping the knee, the user can first wrap the knee brace body 1 around the knee so that the wrapping space 131 wraps and fixes the knee, allowing the knee brace body 1 to provide stable support and protection for the knee.

[0009] In this embodiment, a first reinforcing band 2 and a second reinforcing band 3 are also included. The first reinforcing band 2 has a first end 21 and a second end 22, and the second reinforcing band 3 has a third end 31 and a fourth end 32. The knee brace body 1 has a first side 13 and a second side 14 opposite to the first side 13. The first end 21 is connected to the first side 13, and the second end 22 is detachably connected to the second side 14. The third end 31 is connected to the second side 14, and the fourth end 32 is detachably connected to the first side 13. The first reinforcing band 2 and the second reinforcing band 3 are arranged in a cross pattern. With the above structure, since the first reinforcing band 2 and the second reinforcing band 3 are arranged in a cross pattern, the first reinforcing band 2 and the second reinforcing band 3 can tighten the knee brace body 1 from multiple directions, so that the wrapping space 131 wraps and fixes the knee, allowing the knee brace body 1 to provide more stable support and protection for the knee, forming a first level of tightening. Furthermore, since the second end 22 is detachably connected to the second side 14 and the fourth end 32 is detachably connected to the first side 13, the user can put the knee brace on the knee and then connect the second end 22 to the second side 14 and the fourth end 32 to the first side 13 to tighten the knee brace body 1 to the knee. Compared with the reinforcing straps that are fixedly connected to the knee brace body 1 at both ends, it is easier for the user to put on and take off the knee brace body 1.

[0010] In this embodiment, the first reinforcing band 2 is an elastic first reinforcing band 2, and the second reinforcing band 3 is an elastic second reinforcing band 3; the first end 21 is fixedly connected to or detachably connected to the first side 13, and the third end 31 is fixedly connected to or detachably connected to the second side 14. Through this structure, the elastic restoring force provided by the elastic first reinforcing band 2 and the second reinforcing band 3 when stretched can more tightly wrap the knee brace body 1 around the knee, improving the knee brace body 1's knee-fixing effect. Furthermore, when the first end 21 is fixedly connected to the first side 13 and the third end 31 is fixedly connected to the second side 14, it is convenient for the user to quickly fix the first reinforcing band 2 and the second reinforcing band 3, facilitating user operation. When the first end 21 is detachably connected to the first side 13 and the third end 31 is detachably connected to the second side 14, it is convenient for the user to disassemble, replace, or clean the first reinforcing band 2 and the second reinforcing band 3 to meet the user's needs in different scenarios. For example, when the user wants stronger tightening force, a reinforcing band with greater elasticity and shorter length can be replaced to increase the elastic restoring force provided when the reinforcing band is stretched, so as to tighten the knee brace body 1 more tightly to the knee. In this embodiment, a third reinforcing band 4 and a fourth reinforcing band 5 are also included. The third reinforcing band 4 has a fifth end 41 and a sixth end 42, and the fourth reinforcing band 5 has a seventh end 51 and an eighth end 52. The fifth end 41 is connected to the second end 22, the sixth end 42 is connected to the first side 13, the seventh end 51 is connected to the fourth end 32, and the eighth end 52 is connected to the second side 14. The third reinforcing band 4 and the fourth reinforcing band 5 are arranged in a cross shape. With the above structure, since the third reinforcing band 4 and the fourth reinforcing band 5 are arranged in a cross shape, the first reinforcing band 2 and the second reinforcing band 3 can tighten the knee brace body 1 from multiple directions, so that the wrapping space 131 wraps and fixes the knee, allowing the knee brace body 1 to provide more stable support and protection for the knee, forming a second level of tightening. Furthermore, since the second end 22 is detachably connected to the second side 14, and the fourth end 32 is detachably connected to the first side 13, the user can put the knee brace on the knee and then connect the second end 22 to the second side 14 and the fourth end 32 to the first side 13 to tighten the knee brace body 1 to the knee. Compared to reinforcing bands that are fixedly connected to the knee brace body 1 at both ends, this makes it easier for the user to put on and take off the knee brace body 1. In this embodiment, the third reinforcing band 4 is an elastic third reinforcing band 4, and the fourth reinforcing band 5 is an elastic fourth reinforcing band 5; the sixth end 42 is fixedly connected to or detachably connected to the first side 13; and the eighth end 52 is fixedly connected to or detachably connected to the second side 14. Through the above structure, the elastic restoring force provided by the elastic third reinforcing band 4 and fourth reinforcing band 5 when stretched can more tightly wrap the knee brace body 1 around the knee, improving the knee brace body 1's knee fixation effect. Furthermore, when the first end 21 is fixedly connected to the first side 13 and the third end 31 is fixedly connected to the second side 14, it is convenient for the user to quickly fix the first reinforcing band 2 and the second reinforcing band 3, making it easy for the user to operate.When the sixth end 42 is detachably connected to the first side 13 and the eighth end 52 is detachably connected to the second side 14, it is convenient for the user to remove, replace, or clean the third reinforcing band 4 and the fourth reinforcing band 5 to meet the user's needs in different scenarios. For example, when the user wants stronger tightening force, a reinforcing band with greater elasticity and shorter length can be replaced to increase the elastic restoring force provided when the reinforcing band is stretched, so as to tighten the knee brace body 1 more tightly to the knee. In this embodiment, the fifth end 41 is fixedly connected to the second end 22 and the seventh end 51 is fixedly connected to the fourth end 32. Through the above structure, the connection between the fifth end 41 and the second end 22, as well as the connection between the seventh end 51 and the fourth end 32, are effectively realized, and the connection is stable. In some other embodiments, the fifth end 41 and the second end 22 can also be detachably connected, and the seventh end 51 and the fourth end 32 can also be detachably connected, so that the knee brace body 1 can be fully extended, making it convenient for the user to put on and take off the knee brace body 1. In this embodiment, a first connecting portion 6 is also included, through which the second end 22 is detachably connected to the second side 14 via the first connecting portion 6; a second connecting portion 7 is also included, through which the fourth end 32 is detachably connected to the first side 13 via the second connecting portion 7. Through the above structure, the detachable connection between the second end 22 and the second side 14, and the detachable connection between the fourth end 32 and the first side 13, are effectively achieved, facilitating the user to put on and take off the knee brace body 1 and to tighten the knee brace body 1 around the knee. Specifically, the structure of the second connecting portion is the same as that of the first connecting portion. In this embodiment, the first connecting portion 6 includes a first connecting member 61 and a first connecting mating member 62. The first connecting member 61 is connected to the second end 22, and the first connecting mating member 62 is connected to the second side 14; the first connecting member 61 and the first connecting mating member 62 are detachably connected. Alternatively, the first connecting mating member 62 is connected to the second end 22, the first connecting member 61 is connected to the second side 14, and the first connecting member 61 and the first connecting mating member 62 are detachably connected. The above structure effectively realizes the setting of the first connecting part 6, and the connection between the first reinforcing band 2 and the knee brace body 1 is achieved through the connection between the first connecting member 61 and the first connecting mating member 62. The second connecting part 7 has the same structure as the first connecting part 6. In this embodiment, there are multiple first connecting members 61, arranged sequentially along the length direction of the first reinforcing band 2; there are also multiple first connecting mating members 62, arranged sequentially along the length direction of the knee brace body 1; at least one of the multiple first connecting members 61 is connected to at least one of the multiple first connecting mating members 62.With the above structure, one of the plurality of first connectors 61 arranged sequentially along the length direction of the first reinforcing band 2 can be selectively connected to one of the plurality of first connecting mating parts 62 arranged sequentially along the length direction of the knee brace body 1, so as to adjust and fix the connection position between the first reinforcing band 2 and the knee brace body 1, and adjust the tightening force of the first reinforcing band 2 on the knee brace body 1.

[0011] Reference Figures 1-17 In some embodiments, the first connector 61 is a first fastening member, and the first connecting fitting 62 is a first connecting port 621, with the first fastening member and the first connecting port 621 being detachably connected. The first fastening member is one of a first I-beam buckle 611, a first hook buckle 612, a first figure-eight buckle 613, or a button 614. Specifically, the first fastening member has a first hook portion 615, which is detachably connected to the first connecting port 621. Through this structure, the first hook portion 615 and the first connecting port 621 are detachably connected to connect the second end 22 of the first reinforcing band 2 to the knee brace body 1, facilitating the installation and removal of the first reinforcing band 2 from the knee brace body 1.

[0012] Reference Figures 18-22 In some embodiments, the first connector 61 is a first D-ring buckle 616, and the first connecting mating member 62 is a first connecting strip 622. The first D-ring buckle is connected to the first connecting port of the first connecting strip. The first D-ring buckle 616 includes a first through-hole 6161 and a first dividing portion 6162. The first dividing portion 6162 divides the first through-hole 6161 into a first through-hole 61611 and a second through-hole 61612. The first D-ring buckle 616 has a first upper surface 6163 and a first lower surface 6164. The first reinforcing strip passes sequentially through the first through-hole 61611, the first upper surface 6163, the first dividing portion 6162, and the second through-hole 61612 on the first lower surface 6164 and exits from the second through-hole 61612. Through the above structure, the length of the first connecting strap 622 inserted into the first buckle 616 can be adjusted to adjust the length of the first reinforcing strap 2 after being combined with the first buckle, so as to adjust the strength of the first reinforcing strap 2 in tightening the knee pad body 1.

[0013] Reference Figures 23-25 In some embodiments, the first connector 61 is a first hook and loop fastener 617, and the first connecting mating part 62 is a second hook and loop fastener 623, with the first hook and loop fastener 617 and the second hook and loop fastener 623 being detachably connected. This structure effectively achieves the configuration of the first connector 61 and the first connecting mating part 62. Furthermore, the detachable connection between the first hook and loop fastener 617 and the second hook and loop fastener 623 not only facilitates installation and disassembly but also allows adjustment of the tightening strength of the first reinforcing band 2 on the knee brace body 1 by adjusting the connection position between the first hook and loop fastener 617 and the second hook and loop fastener 623.

[0014] Reference Figure 26 In some embodiments, the first connecting portion 6 is a strap 618. This structure effectively realizes the setting of the first connecting portion 6, and the tightening strength of the first reinforcing strap 2 on the knee brace body 1 can be adjusted by adjusting the length of the strap 618.

[0015] In this embodiment, the knee brace body 1 has an outer surface 15 and an inner surface 16. The outer surface 15 includes a front surface 151 and a rear surface 152 opposite to the front surface 151, and also includes a first extension band 153. A first reinforcing band 2 and a second reinforcing band 3 extend along the front surface 151. One end of the first extension band 153 is connected to the first reinforcing band 2, and the other end of the first extension band 153 is connected to the second reinforcing band 3. The first extension band 153 extends along the rear surface 152. Both ends of the first extension band 153 are connected to the two sides of the rear surface 152, and the middle part of the first extension band 153 is connected to the middle part of the rear surface 152. The first extension band 153 is V-shaped. With the above structure, the elastic V-shaped first extension band 153 can further tighten the rear surface 152 of the knee brace body 1 to the knee, and the V-shaped first extension band 153 has the effect of lifting the knee brace body 1, which can prevent the knee brace body 1 from slipping off the knee.

[0016] In this embodiment, a second extension band 154, a third reinforcing band 4, and a fourth reinforcing band 5 extend along the front surface 151. One end of the second extension band 154 is connected to the third reinforcing band 4, and the other end of the second extension band 154 is connected to the fourth reinforcing band 5. The second extension band 154 extends along the rear surface 152. Both ends of the second extension band 154 are connected to the two sides of the rear surface 152, and the middle part of the second extension band 154 is connected to the middle part of the rear surface 152. The second extension band 154 is a V-shaped second extension band 154. The first extension band 153 is an elastic first extension band 153, and the second extension band 154 is an elastic second extension band 154. The length of the first reinforcing band ranges from 15-30cm, and the width ranges from 1-10cm; the length of the first extension band ranges from 5-15cm, and the width ranges from 1-10cm; the angle between the first and second reinforcing bands ranges from 20-60 degrees; the thickness of the first reinforcing band ranges from 0.2-0.5cm, the thickness of the knee brace body ranges from 0.2-0.5cm, and the thickness of the first anti-slip band ranges from 0.1-0.5cm; the ratio of the area of ​​the inner surface to the area of ​​the patellar protection ring is at least 1475π:134π. Through the above structure, the elastic V-shaped second extension band 154 can further tighten the rear surface 152 of the knee brace body 1 to the knee, and the V-shaped second extension band 154 has a lifting effect on the knee brace body 1, preventing the knee brace body 1 from slipping off the knee. Specifically, the length of the first reinforcing band is 20cm, and the width of the first reinforcing band is 5.5cm; the length of the first extension band is 18cm, and the width of the first extension band is 1-10cm; the angle between the first reinforcing band and the second reinforcing band is 30 degrees; the thickness of the first reinforcing band is 0.3cm, the thickness of the knee brace body is 0.3cm, and the thickness of the first anti-slip band is 0.1-0.5cm; the ratio of the area of ​​the inner surface to the area of ​​the patellar protection ring is at least 462π:159.5π.

[0017] In this embodiment, the inner surface 16 has a raised first anti-slip strip 161 on its upper side. The first anti-slip strip 161 is wavy. Through this structure, the wavy first anti-slip strip 161 not only has an anti-slip effect but also effectively lifts the knee brace body 1.

[0018] In this embodiment, the elasticity of the first reinforcing band 2 is greater than that of the knee brace body 1; the elasticity of the second reinforcing band 3 is greater than that of the knee brace body 1.

[0019] In this embodiment, an elastic supporting steel frame 8 is also included. The supporting steel frame is connected to the knee brace body and is formed by multiple connecting rings 81 interconnected. Through this structure, the supporting steel frame 8 can effectively support the knee brace body 1, allowing it to fully wrap around the knee and preventing it from shrinking into a specific area. The connecting rings 81 are metal connecting rings. Metal connecting rings have a long service life and can provide high support force.

[0020] In this embodiment, the two ends of the first extension band 153 are sewn to both sides of the rear surface 152, and the middle part of the first extension band 153 is sewn to the middle part of the rear surface 152. Specifically, the first end 21 is sewn to the first side 13, and the third end 31 is sewn to the second side 14. Further, the sixth end 42 is sewn to the first side 13, and the eighth end 52 is sewn to the second side 14. This sewn connection provides a more stable connection and facilitates production. In this embodiment, the fifth end 41 is integrally fixed to the second end 22, and the seventh end 51 is integrally fixed to the fourth end 32. Through the above structure, the first reinforcing band 2, the second reinforcing band 3, the third reinforcing band 4, and the fourth reinforcing band 5 are all elastic flexible fabrics, and they are multiple components of the flexible fabric.

[0021] Reference Figures 27-28 In this embodiment, the inner surface 16 also has a raised patellar protection ring 162, and the patellar protection ring 162 has a flexible filler 1621 inside. The patellar protection ring 162 has clearance holes 1622. With the above structure, the patellar protection ring 162 can effectively protect the patella, especially when the user is exercising while wearing the knee brace body 1, the protective effect of the patellar protection ring 162 is obvious.

[0022] In this embodiment, there are multiple first connectors 61, which are arranged sequentially along the width direction of the first reinforcing band 2; there are also multiple first connecting fittings 62, which are arranged sequentially along the width direction of the knee brace body 1. This structure improves the connection strength between the first reinforcing band 2 and the knee brace body 1.

[0023] The above description provides one or more embodiments in conjunction with specific content, but it is not intended that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A knee brace, characterized in that, include: The knee brace body (1) has a first connecting end (11) and a second connecting end (12) opposite to the first connecting end (11). The first connecting end (11) and the second connecting end (12) are connected so that the sidewall of the knee brace body (1) surrounds to form a wrapping space (131) for wrapping the knee. It also includes a first reinforcing band (2) and a second reinforcing band (3). The first reinforcing band (2) has a first end (21) and a second end (22). The second reinforcing band (3) has a third end (31) and a fourth end (32). The knee brace body (1) has a first side (13) and a second side (14) opposite to the first side (13). The first end (21) is connected to the first side (13), and the second end (22) is detachably connected to the second side (14). The third end (31) is connected to the second side (14), and the fourth end (32) is detachably connected to the first side (13). The first reinforcing band (2) and the second reinforcing band (3) are arranged in a cross shape. The knee brace body (1) has an outer surface (15) and an inner surface (16). The outer surface (15) includes a front surface (151) and a rear surface (152) opposite to the front surface (151). It also includes a first extension band (153). The first reinforcing band (2) and the second reinforcing band (3) extend along the front surface (151). One end of the first extension band (153) is connected to the first reinforcing band (2), and the other end of the first extension band (153) is connected to the second reinforcing band (3). The first extension band (153) extends along the rear surface (152). Both ends of the first extension band (153) are connected to the two sides of the rear surface (152). The middle part of the first extension band (153) is connected to the middle part of the rear surface (152). The first extension strip is a V-shaped first extension strip, and the second extension strip is a V-shaped second extension strip.

2. A knee brace according to claim 1, characterized in that, The first reinforcing band (2) is an elastic first reinforcing band (2), and the second reinforcing band (3) is an elastic second reinforcing band (3); the first end (21) is fixedly connected to the first side (13) or detachably connected, and the third end (31) is fixedly connected to the second side (14) or detachably connected.

3. A knee brace according to claim 1, characterized in that, It also includes a third reinforcing band (4) and a fourth reinforcing band (5). The third reinforcing band (4) has a fifth end (41) and a sixth end (42). The fourth reinforcing band (5) has a seventh end (51) and an eighth end (52). The fifth end (41) is connected to the second end (22). The sixth end (42) is connected to the first side (13). The seventh end (51) is connected to the fourth end (32). The eighth end (52) is connected to the second side (14). The third reinforcing band (4) and the fourth reinforcing band (5) are arranged in a cross shape.

4. A knee brace according to claim 3, characterized in that, The third reinforcing band (4) is an elastic third reinforcing band (4), and the fourth reinforcing band (5) is an elastic fourth reinforcing band (5); the sixth end (42) is fixedly connected to or detachably connected to the first side (13); the eighth end (52) is fixedly connected to or detachably connected to the second side (14); the fifth end (41) is fixedly connected to the second end (22), and the seventh end (51) is fixedly connected to the fourth end (32).

5. A knee brace according to claim 1, characterized in that, It also includes a first connecting portion (6), the second end (22) being detachably connected to the second side (14) via the first connecting portion (6); it also includes a second connecting portion (7), the fourth end (32) being detachably connected to the first side (13) via the second connecting portion (7); the first connecting portion (6) includes a first connector (61) and a first connecting mating member (62), the first connector (61) being connected to the second end (22), the first connecting mating member (62) being connected to the second side (14), and the first connector (61) and the first connecting mating member (62) being detachably connected; or, the first connecting mating member (62) being connected to the second end (22), the first connector (61) being connected to the second side (14), and the first connector (61) and the first connecting mating member (62) being detachably connected.

6. A knee brace according to claim 5, characterized in that, The first connector (61) is a first fastening member, and the first connecting fitting member (62) is a first connecting port (621). The first fastening member is detachably connected to the first connecting port (621); or, the first connecting fitting member (62) is a first fastening member, and the first connector (61) is a first connecting port (621). The first fastening member is detachably connected to the first connecting port (621); the first fastening member is one of a first I-shaped buckle (611), a first hook buckle (612), a first figure-eight buckle (613), or a button (614); the first fastening member has a first hook portion (615), and the first hook portion (615) is detachably connected to the first connecting port (621).

7. A knee brace according to claim 6, characterized in that, The first connector (61) is a first D-ring buckle (616), the first connecting mating part (62) is a first connecting strip (622), the first D-ring buckle is connected to the first connecting port of the first connecting strip, the first D-ring buckle (616) includes a first through-hole (6161) and a first dividing part (6162), the first dividing part (6162) divides the first through-hole (6161) into a first through-hole (61611) and a second through-hole (61612), the first D-ring buckle (616) has a first upper surface (6163) and a first lower surface (6164), the first reinforcing strip passes through the first through-hole (61611), the first upper surface (6163), the first dividing part (6162), and the second through-hole (61612) in sequence on the first lower surface (6164) and exits from the second through-hole (61612).

8. A knee brace according to claim 5, characterized in that, The first connector (61) is a first hook and loop fastener (617), and the first connecting fitting (62) is a second hook and loop fastener (623). The first hook and loop fastener (617) and the second hook and loop fastener (623) are detachably connected.

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