Parachute landing lower leg protector

Abstract

This utility model provides a parachute landing lower limb protector, including a foot fixation component, a leg fixation component, and a connecting rod. The foot fixation component has a heel receiving cavity and a foot fastening structure. A vertical support column is provided on the side of the heel receiving cavity of the foot fixation component, and the support column has an upward-facing ball joint interface. The leg fixation component includes a side plate, and the side plate has a leg fastening structure. The top end of the connecting rod is fixedly installed relative to the side plate, and the bottom end is rotatably installed in the ball joint interface via a connecting ball joint. The leg fixation component has a degree of freedom of movement relative to the foot fixation component, allowing for forward, backward, left, and right swinging. The parachute landing lower limb protector provided by this utility model allows the user to slightly adjust the landing angle of the foot forward, backward, left, and right, which not only protects the ankle joint but also reduces the risk of slipping upon landing and direct impact to the side of the lower leg.

Description

Technical Field

[0001] This utility model relates to the field of joint protection products, and in particular to a lower limb protector for parachute landings. Background Technology

[0002] Lower limb protective gear for parachute landings is primarily used in parachute training or skydiving activities to prevent leg and ankle injuries caused by improper landing angles, uneven terrain, or incorrect postures. Currently, most parachute protective gear on the market consists of two parts: a heel brace for the heel or shoe heel and a leg brace for the lower leg. These two braces are often hinged together, allowing only one degree of freedom of movement in one axis. This ankle protection structure only allows for vertical foot rotation, which is not ergonomically sound. The human ankle has multiple degrees of freedom of movement. If the foot can only adjust in the forward and backward direction, it will prevent the foot from making smaller lateral rotation movements. However, during parachute jumps, the parachute descends rapidly, resulting in a large impact force upon landing, and the jumper has difficulty assessing the landing site from mid-air. Based on the assessment, there is a high risk of direct impact with hard objects such as rocks, trees, buildings, and vehicles, leading to leg injuries, ankle sprains, and even fractures. Injuries can prevent subsequent work, resulting in non-combat casualties. In addition, at the moment of landing, although the existing parachute protective gear protects the ankle joint, there is a possibility of falling due to a small contact area with the ground or instability caused by the inability to make slight adjustments to the foot angle. More seriously, the angle of lateral movement of the ankle joint is restricted, and the knee joint compensates, resulting in excessive knee joint movement and sprains. Furthermore, the existing parachute protective gear does not provide leg protection. Therefore, the existing parachute protective gear needs improvement. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a more protective ankle and leg structure.

[0004] A parachute landing lower limb protector includes a foot anchor, a leg anchor, and a connecting rod.

[0005] The foot fixing component has a heel receiving cavity, and a foot fastening structure is provided at the entrance of the heel receiving cavity. The foot fixing component has a vertical support column on the side of the heel receiving cavity, and the support column has an upward-facing ball joint.

[0006] The leg fastener includes a side plate with a leg securing structure. When in use, it is fastened to the side of the lower leg, which not only secures the wearer but also protects the lower leg from direct impact.

[0007] The top and side plates of the connecting rod are fixedly installed relative to each other, and the bottom end is provided with a docking ball head. The docking ball head is rotatably installed in the ball head docking interface. The leg fixing member is swayingly installed with the foot fixing member through the connecting rod, and the leg fixing member has a degree of freedom of swinging forward, backward and left and right relative to the foot fixing member.

[0008] When wearing the device, step your heel (while wearing shoes) into the heel cavity of the foot anchor, and secure your foot in the foot anchor using the foot fastening structure. Then, fasten the leg anchor to your calf using the leg fastening structure. During parachute jumps, the parachute landing lower limb protector prevents sudden large twisting angles at the ankle joint upon landing, protecting the ankle. Furthermore, because the foot and leg anchors are connected by a ball joint structure, they offer freedom of movement in all directions, allowing the user to slightly adjust the landing angle of their foot, increasing the contact area and friction between the foot and the ground. This prevents slipping due to the inability to adjust left or right, and also reduces the risk of knee sprains caused by excessive compensatory flexion.

[0009] The parachute landing lower limb protector provided in this application has a ball joint structure connecting the foot and leg fixing parts, which allows for swing freedom in the front, back, left, and right directions. This allows the user to slightly adjust the landing angle of the feet in the front, back, left, and right directions, which not only protects the ankle joint but also reduces the chance of slipping and knee sprains upon landing.

[0010] Preferably, the leg fixing member has a forward swing amplitude and a backward swing amplitude relative to the foot fixing member of 0°-40°.

[0011] Preferably, the leg fixing member swings to the left and to the right relative to the foot fixing member with an amplitude of 0°-15°.

[0012] Preferably, the opening of the ball joint interface is rectangular, and the channel from the installation position of the ball joint to the opening is a tetrahedron, wherein the angle between the two inclined planes of the tetrahedron relative to the front-back direction is 60°, and the angle between the two inclined planes relative to the left-right direction is 20°.

[0013] Preferably, the heel receiving cavity is formed by a base and a barrier, the support column is locked to the side of the barrier by screws, the side of the support column is provided with a pressure cap, and the mating ball head is restricted within the ball head mating interface by the pressure cap.

[0014] Preferably, the foot fastening structure includes a toothed rack and a buckle, which are respectively disposed on both sides of the entrance to the heel cavity. When the user inserts their foot into the heel cavity, the foot fastener is fixed to the user's foot by the toothed rack and the buckle. The leg fastening structure is a strap, and both sides of the side plate have strap mounting holes. In use, the side plate is placed tightly against the side of the user's lower leg and secured with the strap.

[0015] Preferably, to improve the wearing stability of the leg fixation member and the lower leg, the side plate has two pieces, which are arranged one above the other, and the bottom side plate is assembled with the connecting rod by screws.

[0016] Preferably, to accommodate users of different heights, a distance adjustment structure is provided between the two side panels. The distance adjustment structure includes an adjustment strap and a slot. The adjustment strap is located on one side panel and extends towards the other side panel. The adjustment strap has adjustment holes along its length, with at least two adjustment holes. The slot is located at the end of the other side panel and allows the adjustment strap to be inserted telescopically. The slot has a connecting plate spanning across the two side panels. The connecting plate has limiting protrusions for inserting into the adjustment holes. In use, the distance between the two side panels is adjusted by engaging the limiting protrusions with different adjustment holes.

[0017] Preferably, to improve the convenience of adjustment, the adjustment holes are connected by a connecting channel, the width of which is less than the diameter of the adjustment hole. The length of the limiting protrusion is greater than the depth of the adjustment hole, including a cylinder connected to the connecting plate and a pressing part disposed at the end of the cylinder. The diameter of the cylinder is equal to the diameter of the adjustment hole, and the width of the pressing part is less than or equal to the width of the connecting channel. The surface of the slot that mates with the adjustment band has a clearance hole for the limiting protrusion to protrude. When it is necessary to adjust the distance between the two side plates, the pressing part can be pressed to allow the cylinder to exit the adjustment hole, and then the adjustment band can be moved. At this time, the pressing part enters the next adjustment hole through the connecting channel. When the adjustment is in place, the pressing part is released, and the cylinder is inserted back into the adjustment hole. At this time, the two side plates are adjusted to the new distance.

[0018] Preferably, the connecting rod consists of two rods, which are assembled together by a shock-absorbing structure. The shock-absorbing structure includes a groove, a hole, and a spring. One rod has the groove at its end, and the spring is located in the groove. The other rod has the hole at its end and is inserted into the groove. The two rods are then elastically and telescopically assembled together by screws passing through the hole. In use, the impact force can be absorbed by compressing the spring, which has a shock-absorbing effect and improves the protection effect.

[0019] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0020] The parachute landing lower limb protector provided in this application has a ball joint structure connecting the foot fixation component and the leg fixation component, which has a degree of freedom of swing in the front, back and left and right. This allows the user to slightly adjust the landing angle of the foot in the front, back and left and right, which can not only protect the ankle joint, but also reduce the chance of slipping and knee sprains upon landing.

[0021] The ball joint uses a four-sided cone shape to limit the swing angle of the connecting rod, which is simple in structure and highly reliable.

[0022] The side panels can protect the lower legs and prevent direct impact from the sides.

[0023] The addition of side panels improves the stability of the garment.

[0024] An adjustable-spacing mounting structure is provided between the two side panels to accommodate users of different heights, resulting in a more compact fit and safer use.

[0025] The connecting rod is equipped with a shock-absorbing structure. During use, the impact force can be absorbed by compressing the spring, which has a shock-absorbing effect and improves the protection effect. Attached Figure Description

[0026] 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.

[0027] in:

[0028] Figure 1 An axial view of a parachute landing lower limb protector Figure 1 ;

[0029] Figure 2 An axial view of a parachute landing lower limb protector Figure 2 ;

[0030] Figure 3 A frontal view of a parachute landing lower limb protector Figure 1 ;

[0031] Figure 4 A frontal view of a parachute landing lower limb protector Figure 2 ;

[0032] Figure 5 This is a rear view of a parachute landing lower limb protector.

[0033] Figure 6 This is a side view of a parachute landing lower limb protector;

[0034] Figure 7 A cross-sectional view of a parachute landing lower limb protector; (about Figure 3 (at point AA);

[0035] Figure 8 A partial magnification of a parachute landing lower limb protector Figure 1 (about Figure 2 (at point B)

[0036] Figure 9 A partial magnification of a parachute landing lower limb protector Figure 2 (about Figure 4 (at point C)

[0037] Figure 10 A partial magnification of a parachute landing lower limb protector Figure 2 (about Figure 7 (at point D)

[0038] Figures 1 to 10 The markings are as follows: foot fixing component 1, heel receiving cavity 11, support column 12, ball head interface 121, base 13, enclosure 14, rack 15, buckle 16, leg fixing component 2, side plate 21, adjustment belt 22, adjustment hole 221, connecting channel 222, slot 23, connecting plate 24, limiting protrusion 25, cylinder 251, pressing part 252, clearance hole 26, connecting rod 3, mating ball head 31, strip groove 32, strip hole 33. Detailed Implementation

[0039] 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.

[0040] Please see Figures 1 to 9 A parachute landing lower limb protector includes a foot fixation component 1, a leg fixation component 2, and a connecting rod component 3.

[0041] The foot fixing component 1 is provided with a heel receiving cavity 11, and a foot fastening structure is provided at the entrance of the heel receiving cavity 11. The foot fixing component 1 is provided with a vertical support column 12 on the side of the heel receiving cavity 11, and the support column 12 is provided with an upward-facing ball joint interface 121.

[0042] In one embodiment, the heel receiving cavity 11 is surrounded by a base 13 and a retaining wall 14, and the support column 12 is locked to the side of the retaining wall 14 by screws. Additionally, the foot fastening structure includes a rack 15 and a buckle 16, which are respectively disposed on both sides of the entrance to the heel receiving cavity 11. When the user inserts their foot into the heel receiving cavity 11, the rack 15 and the buckle 16 secure the foot fastener 1 to the user's foot.

[0043] The leg fastener 2 includes a side plate 21, which has a leg fastening structure. Preferably, the leg fastening structure is a strap (not shown). Both sides of the side plate 21 have strap mounting openings. In use, the side plate 21 is placed tightly against the side of the user's lower leg and secured with the strap. This not only secures the wearer but also protects the lower leg from direct impact.

[0044] In one embodiment, to improve the wearing stability of the leg fixation member 2 and the lower leg, the side plate 21 has two pieces, which are arranged one above the other, and the bottom side plate 21 is assembled with the connecting rod 3 by screws.

[0045] Based on the above embodiments, to accommodate users of different heights, in another embodiment, a distance adjustment structure is provided between the two side plates 21. The distance adjustment structure includes an adjustment band 22 and a slot 23. The adjustment band 22 is disposed on one side plate 21 and extends to the other side plate 21. The adjustment band 22 has adjustment holes 221 along its length, with at least two holes 221. The slot 23 is disposed at the end of the other side plate 21 and allows the adjustment band 22 to be inserted telescopically. The slot 23 has a connecting plate 24 spanning across the two side walls. The connecting plate 24 has a limiting protrusion 25 for inserting into the adjustment holes 221. In use, the distance between the two side plates 21 is adjusted by engaging the limiting protrusion 25 with different adjustment holes 221.

[0046] Preferably, to improve the convenience of adjustment, the adjustment holes 221 are connected together by a connecting channel 222, the width of which is smaller than the diameter of the adjustment hole 221. The length of the limiting protrusion 25 is greater than the depth of the adjustment hole 221, including a cylinder 251 connected to the connecting plate 24, and a pressing part 252 disposed at the end of the cylinder 251. The diameter of the cylinder 251 is equal to the diameter of the adjustment hole 221, and the width of the pressing part 252 is less than or equal to the width of the connecting channel. The surface of the slot 23 that mates with the adjustment band 22 is provided with a clearance hole 26 for the limiting protrusion 25 to be exposed. When it is necessary to adjust the distance between the two side plates 21, the pressing part 252 can be pressed to allow the cylinder 251 to exit the adjustment hole 221, and then the adjustment belt 22 can be moved. At this time, the pressing part 252 enters the next adjustment hole 221 through the connecting channel 222. When the adjustment is in place, the pressing part 252 can be released, and the cylinder 251 can be inserted into the adjustment hole 221 again. At this time, the two side plates 21 are adjusted to a new distance.

[0047] The top end of the connecting rod 3 is fixedly installed relative to the side plate 21, and the bottom end is provided with a docking ball head 31, which is rotatably installed in the ball head docking interface 121. In one embodiment, the side of the support column 12 is provided with a pressure cap, and the docking ball head 31 is restricted within the ball head docking interface 121 by the pressure cap.

[0048] The leg fixing member 2 is oscillatingly installed with the foot fixing member 1 via the connecting rod 3, and the leg fixing member 2 has a degree of freedom of swinging in front, back and left and right relative to the foot fixing member 1.

[0049] The leg fixation member 2 swings forward and backward relative to the foot fixation member 1 with an amplitude of 0°-40°, while the leg fixation member 2 swings left and right relative to the foot fixation member 1 with an amplitude of 0°-15°.

[0050] For example, in this embodiment, the opening of the ball head interface 121 is rectangular, and the channel from the installation position of the docking ball head 31 to the opening is a tetrahedron. The angle α between the two inclined planes of the tetrahedron relative to the front-back direction is 60°, and the angle b between the two inclined planes relative to the left-right direction is 20°.

[0051] Based on the above embodiment, the connecting rod 3 consists of two rods, which are assembled together by a shock-absorbing structure. The shock-absorbing structure includes a strip groove 32, a strip hole 33, and a spring (not shown). One rod has the strip groove 32 at its end, and the spring is located in the strip groove 32. The other rod has the strip hole 33 at its end and is inserted into the strip groove 32. The two rods are then elastically and telescopically assembled together by passing a screw through the strip hole 33. In use, the impact force can be absorbed by compressing the spring, which has a shock-absorbing effect and improves the protection effect.

[0052] When wearing the device, the heel (with shoes) is placed into the heel cavity 11 of the foot fixing component 1, and the foot is secured to the foot fixing component 1 by the foot fastening structure. Then, the leg fixing component 2 is strapped to the lower leg by the leg fastening structure. During parachute landing, the parachute landing lower limb protector can prevent a sudden large twisting angle at the ankle joint at the moment of foot landing, thus protecting the ankle joint. In addition, since the foot fixing component 1 and the leg fixing component 2 are connected by a ball joint structure, they have the freedom of movement in all directions, allowing the user to slightly adjust the landing angle of the foot, increasing the contact area and friction between the foot and the ground. This can prevent slipping due to the inability to adjust left and right, and can also reduce the risk of knee sprains caused by excessive compensatory flexion of the knee.

[0053] The parachute landing lower limb protector provided in this application has a foot fixing part 1 and a leg fixing part 2 connected by a ball joint structure, which has the freedom of swinging forward, backward and left and right, allowing the user to slightly adjust the landing angle of the foot forward, backward and left and right, which can not only protect the ankle joint, but also reduce the chance of slipping and knee sprains upon landing.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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. A parachute landing lower limb protector, characterized in that, Includes foot fixing components, leg fixing components, and connecting rods; The foot fixing component is provided with a heel receiving cavity, and a foot fastening structure is provided at the entrance of the heel receiving cavity; the foot fixing component is provided with a vertical support column on the side of the heel receiving cavity, and the support column is provided with an upward-facing ball joint interface; The leg fixing component includes a side plate, and the side plate is provided with a leg fastening structure; The top and side plates of the connecting rod are fixedly installed relative to each other, and the bottom end is provided with a docking ball head. The docking ball head is rotatably installed in the ball head docking interface. The leg fixing member is swayingly installed with the foot fixing member through the connecting rod, and the leg fixing member has a degree of freedom of swinging forward, backward and left and right relative to the foot fixing member.

2. The parachute landing lower limb protector according to claim 1, characterized in that, The leg fixation member swings forward and backward relative to the foot fixation member with an amplitude of 0°-40°.

3. The parachute landing lower limb protector according to claim 1, characterized in that, The leg fixation member swings 0°-15° to the left and right relative to the foot fixation member.

4. The parachute landing lower limb protector according to claim 1, characterized in that, The opening of the ball joint interface is rectangular, and the channel from the installation position of the ball joint to the opening is a tetrahedron. The angle between the two inclined planes of the tetrahedron relative to the front-back direction is 60°, and the angle between the two inclined planes relative to the left-right direction is 20°.

5. A parachute landing lower limb protector according to claim 1, characterized in that, The heel receiving cavity is formed by a base and a barrier. The support column is locked to the side of the barrier by screws. The side of the support column is provided with a pressure cap. The mating ball head is restricted within the ball head mating interface by the pressure cap.

6. A parachute landing lower limb protector according to claim 1, characterized in that, The foot fastening structure includes a toothed rack and a buckle, which are respectively located on both sides of the inlet of the heel cavity; the leg fastening structure is a strap, and the side plates are provided with strap installation openings on both sides.

7. A parachute landing lower limb protector according to claim 1, characterized in that, The side plate consists of two pieces, arranged one above the other, and the bottom side plate is assembled with the connecting rod by screws.

8. A parachute landing lower limb protector according to claim 7, characterized in that, A distance adjustment structure is provided between the two side plates. The distance adjustment structure includes an adjustment band and a slot. The adjustment band is disposed on one side plate and extends to the other side plate. The adjustment band has adjustment holes along its length, and there are at least two adjustment holes. The slot is disposed at the end of the other side plate and allows the adjustment band to be inserted into it. The slot has a connecting plate that spans across the two side walls. The connecting plate has a limiting protrusion for inserting into the adjustment hole.

9. A parachute landing lower limb protector according to claim 8, characterized in that, The adjustment holes are connected together by a connecting channel, the width of which is less than the diameter of the adjustment hole; the length of the limiting protrusion is greater than the depth of the adjustment hole, including a cylinder connected to the connecting plate, and a pressing part disposed at the end of the cylinder, the diameter of the cylinder being equal to the diameter of the adjustment hole, the width of the pressing part being less than or equal to the width of the connecting channel, and the surface of the slot that fits with the adjustment band having a clearance hole for the limiting protrusion to be exposed.

10. A parachute landing lower limb protector according to claim 1, characterized in that, The connecting rod consists of two rods, which are assembled together by a shock-absorbing structure. The shock-absorbing structure includes a groove, a hole, and a spring. One rod has the groove at its end and the spring is located in the groove. The other rod has the hole at its end and is inserted into the groove. The two rods are then elastically and telescopically assembled together by passing a screw through the hole.

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