Supporting framework and parachute
By designing a support frame, the problem of parachute canopy deformation and collapse after the counterweight is dropped was solved, achieving stable support of the canopy when air pressure changes, ensuring normal parachute flight and timely arrival of the load.
Patent Information
- Application Number
- CN202511478054.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2025-12-23
AI Technical Summary
Existing parachutes are prone to collapse and failure after the counterweight is dropped due to the pressure difference, causing the canopy to deform severely.
Design a support frame, including a first support member and a second support member, which are connected to the umbrella canopy through a rotating member, a support rod and an installation structure. The support rod is connected to the first support member when multiple support frames are combined. The rotating member is detachably snapped into the first support member. An elastic member is used to enhance the stability of the snapping. Multiple support frames form a ring around the air inlet of the umbrella canopy. The rotating member is snapped into the first support member to fix the air inlet of the umbrella canopy.
When the internal and external air pressure changes, the support frame restricts the deformation of the parachute canopy's air inlet, prevents the canopy from collapsing, maintains the parachute's stable flight, and ensures that the payload arrives at its destination on time.
Smart Images
Figure CN121180461A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of parachute technology, specifically to a support frame and a parachute. Background Technology
[0002] Currently, parachutes play a crucial role in aerospace and weaponry. Their purpose has long since expanded beyond simply bringing objects down; they now primarily function as deceleration parachutes, rapidly slowing down deployed objects to reach a predetermined speed, allowing subsequent operations to proceed. They are widely applicable, offer excellent deceleration, and are relatively inexpensive compared to other methods.
[0003] During load deployment, a portion of the load is typically jettisoned from the parachute first, and then the parachute descends to the designated location carrying the remaining load. Under normal circumstances, the parachute descends steadily, and the gravity generated by the total load balances the air resistance generated when the canopy is fully inflated. The canopy also maintains equal air pressure inside and outside under this force balance, supporting its aerodynamic shape. When the load changes significantly, the resulting gravity is much smaller than the original gravity, but the drag remains close to the equilibrium value. The parachute system receives a large upward force and begins to decelerate. During deceleration, the parachute system's descent speed relative to the air decreases rapidly, leading to a reduction in the airflow velocity entering the canopy. This causes a sharp drop in internal air pressure, resulting in an unequal pressure difference between the inside and outside of the canopy. Consequently, the canopy cannot maintain its original shape and is prone to collapse and failure. Summary of the Invention
[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a support frame to solve the technical problem in the prior art where the parachute canopy is severely deformed and prone to collapse and failure due to the pressure difference after the counterweight is dropped.
[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a support frame, comprising: First support member; and The second support component includes a rotating component, a support rod, and a mounting structure. The rotating component is rotatably connected to the first support component. One end of the support rod is connected to the rotating component, and the other end of the support rod and the first support component both have a connection structure that allows them to be connected when multiple support frames are combined. The rotating component can be detachably engaged with the first support component when rotating relative to it. The mounting structure is used to connect the parachute canopy.
[0006] In some embodiments, the second support member further includes an elastic member, and the first support member has a slot, which can drive the slot to detachably engage the elastic member when the first support member rotates relative to the rotating member.
[0007] In some embodiments, the elastic element includes a slider and a spring, the slider being slidably connected to the rotating element, and the spring being connected to the slider and capable of driving the slider to extend outside the rotating element by elastic force so as to detachably engage with the slot.
[0008] In some embodiments, the slider has a guide arc surface on the side opposite to the spring, and the rotating member can abut against the groove wall of the slot through the guide arc surface when rotating relative to the first support member.
[0009] In some embodiments, the first support member includes a first connecting ring, the second support member further includes a second connecting ring, and the support frame further includes a connecting screw, which passes through the first connecting ring and the second connecting ring and is threaded to a nut.
[0010] In some embodiments, the mounting structure includes a limiting plate and a limiting screw, the limiting screw passing through the limiting plate and threadedly connected to the rotating member, and the limiting plate and the rotating member being used to clamp the parachute canopy.
[0011] In some embodiments, the support rod has a through hole for threading a binding rope through and connecting it to the umbrella canopy.
[0012] Secondly, the present invention also provides a parachute, including a canopy and a plurality of the above-mentioned support frames, wherein the plurality of support frames are connected end to end to the first support member by the support rod to form a ring, and the air inlet of the canopy is connected to the mounting structure of the plurality of support frames.
[0013] In some embodiments, the umbrella canopy has a through mounting opening, the mounting structure includes a limiting plate and a limiting screw, the umbrella canopy is located between the limiting plate and the rotating member, and the limiting screw passes through the limiting plate and the mounting opening in sequence and is threaded to the rotating member.
[0014] In some embodiments, the orientations of the plurality of support frames are alternately opposite.
[0015] Compared with existing technologies, the present invention provides a support frame that can be configured in multiple ways. Both the support rod and the first support member have a connecting structure that allows multiple support frames to be connected when combined. These multiple support frames can be connected end-to-end through the connecting structure to form a ring, and can be connected around the periphery of the parachute canopy's air inlet. When the rotating member separates from the first support member, the multiple support frames can fold, causing the canopy to be in a stowed state. When the canopy is released, it unfolds due to airflow, causing the rotating members of the multiple support frames to rotate and engage with the first support member, thus fixing the canopy's air inlet. When the parachute drops its counterweight and suddenly experiences weightlessness, causing a significant change in internal and external air pressure, the first support member and rotating member of the multiple support frames can remain relatively fixed through engagement, thereby limiting large deformation of the canopy's air inlet and preventing the canopy from collapsing and failing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the support frame provided in the embodiment of the present invention when it is in the storage state; Figure 2 This is a cross-sectional schematic diagram of the support frame provided in an embodiment of the present invention when it is in an extended state; Figure 3 This is a schematic diagram of the structure of multiple support frames connected and in a stowed state according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the parachute provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure when multiple support frames are connected end to end to form a ring, as provided in an embodiment of the present invention; Figure 6 This is a partial structural diagram of the parachute in the retracted state according to an embodiment of the present invention. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 merely illustrative and not intended to limit the invention.
[0018] To address the technical problem in existing technologies where parachutes experience severe deformation and collapse after dropping their counterweights due to pressure differences, this invention provides a support frame and parachute that can support the air inlet of the parachute canopy when sudden weightlessness causes significant changes in internal and external air pressure, thereby limiting severe deformation and preventing the canopy from collapsing and failing.
[0019] It should be noted that the support frame described in this invention is used for, but not limited to, parachutes. For ease of explanation, this invention will only use the application of the support frame to parachutes as an example. The principle of the support frame in other types of equipment is essentially the same as that in parachutes, and will not be described in detail here.
[0020] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a support frame 100 in one embodiment of the present invention. The support frame 100 includes a first support member 1 and a second support member 2. The second support member 2 includes a rotating member 21, a support rod 22, and a mounting structure 23. The rotating member 21 is rotatably connected to the first support member 1. One end of the support rod 22 is connected to the rotating member 21, and the other end of the support rod 22 and the first support member 1 both have a connecting structure that allows them to be connected when multiple support frames 100 are combined, so that multiple support frames 100 can be connected end to end to form a ring through the connecting structure. When the rotating member 21 rotates relative to the first support member 1, the support frame 100 can switch between a retracted state and an extended state. When the support frame 100 is in the extended state, the rotating member 21 engages with the first support member 1, and the support frame 100 remains fixed and is not easily deformed. When the support frame 100 is in the retracted state, the rotating member 21 is detached from the first support member 1. The mounting structure 23 is used to connect the parachute canopy, specifically to the air inlet of the parachute canopy.
[0021] The connection structure described above is not limited. For example, the connection structure of the support rod 22 can be a pin, and the connection structure of the first support member 1 can be a slot, with the slot and pin being detachably connected. Alternatively, the connection structure of the support rod 22 and the first support member 1 can both be welded sections, with the two welded sections welded together to fix the support rod 22 and the first support member 1 in place.
[0022] Multiple supporting frames, 100 in total, are connected end to end to form a ring. Figure 5 (As shown), the diameter of the ring is adapted to the diameter of the air inlet of the canopy, and multiple support frames 100 are connected to the periphery of the air inlet. When all the support frames 100 are in the retracted state, the canopy can be folded and stored in the corresponding parachute pack. When the parachute is needed, it can be released from the parachute pack, and the canopy can be fully deployed under the action of airflow. The canopy drives the multiple support frames 100 to switch to the extended state, and the rotating part 21 of the support frame 100 is locked and fixed to the first support member 1. When the parachute releases the counterweight and suddenly loses weight, a large air pressure difference is generated inside and outside the canopy. Since the multiple support frames 100 are in the locked state, the multiple support frames 100 can limit the large deformation of the air inlet of the canopy, the parachute is not easy to collapse, and it can still maintain normal flight, so that the load on the parachute can reach the destination on time.
[0023] In one embodiment, please refer to Figure 1 and Figure 2 The second support member 2 also includes an elastic member 24. The first support member 1 has a slot 11. When the first support member 1 rotates relative to the rotating member 21, the slot 1 is driven to detachably engage with the elastic member. In this embodiment, when the first support member 1 rotates relative to the rotating member 21, the slot 11 of the first support member 1 gradually approaches the elastic member 24 until it abuts and engages with the elastic member 24. The elastic member 24 has a certain elastic deformation capability, which can improve the fault tolerance rate and engagement efficiency of the engagement with the slot 11. During the process of the parachute canopy switching from the retracted state to the extended state, the canopy is driven by the airflow to rotate the first support member 1 relative to the rotating member 21 until the elastic member 24 engages with the slot 11, thus fixing the air inlet of the canopy.
[0024] In one embodiment, please refer to Figure 2 The elastic element 24 includes a slider 241 and a spring 242. The slider 241 is slidably connected to the rotating element 21, and the spring 242 is connected to the slider 241 and can drive the slider 241 to extend out of the rotating element 21 through elastic force, so as to detachably engage with the slot 11. In this embodiment, the rotating element 21 is provided with a movable groove 211, the spring 242 is located in the movable groove 211, a part of the slider 241 is slidably disposed in the movable groove 211, and the other part of the slider extends out of the rotating element 21 under the elastic action of the spring 242. This part is used to engage with the slot 11 of the first support element 1. When the first support element 1 rotates toward the slider 241, the groove wall of the slot 11 of the first support element 1 first presses against the slider 241. When the slider 241 and the slot 11 are completely aligned, the two achieve a snap-fit engagement.
[0025] Further, please refer to Figure 1 The slider 241 has a guide arc surface 243 on the side opposite to the spring 242. When the rotating member 21 rotates relative to the first support member 1, it can abut against the groove wall of the slot 11 through the guide arc surface 243. As the first support member 1 rotates toward the slider 241, the groove wall of the slot 11 of the first support member 1 presses against the guide arc surface 243 of the slider 241, causing the slider 241 to slide briefly toward the spring 242 and drive the spring 242 to accumulate elastic force. When the slider 241 and the slot 11 are fully aligned, the spring 242 releases the elastic force to drive the slider 241 to slide toward the slot 11 and fully engage with the slot 11. In this embodiment, by setting the guide arc surface 243, the engagement between the slider 241 and the slot 11 is smoother, and the umbrella canopy will not jam during the extension process.
[0026] In one embodiment, please refer to Figure 1The first support member 1 includes a first connecting ring 12, and the second support member 2 includes a second connecting ring 25 and a nut 26. The second connecting ring 25 is disposed on the rotating member 21. The support frame 100 also includes a connecting screw 3, which passes through the first connecting ring 12 and the second connecting ring 25 and is threaded to the nut 26. In this embodiment, by using the connecting screw 3 to pass through the first connecting ring 12 and the second connecting ring 25 and then threaded to the nut 26, the first support member 1 and the rotating member 21 can rotate around the connecting screw 3, which also facilitates disassembly and assembly. In addition, the second connecting ring 25 has a limiting part 251. When the rotating member 21 engages with the slot 11 of the first support member 1 via the slider 241, the limiting part 251 can restrict the first support member 1 from continuing to rotate toward the rotating member 21, thus limiting the excessive extension of the air inlet of the umbrella canopy. When an external force is applied to the rotating member 21 to make it rotate in a direction away from the slider 241, the first support member 1 can overcome the locking force between the slider 241 and the slot 11, so that the rotating member 21 can rotate in a direction away from the slider 241. Thus, the support frame 100 can be switched to a storage state. Multiple support frames 100 drive the umbrella canopy to retract so that it can be stored when not in use, making it convenient to carry and store.
[0027] In one embodiment, please refer to Figure 1 The mounting structure 23 includes a limiting plate 231 and a limiting screw 232. The limiting screw 232 passes through the limiting plate 231 and is threaded to the rotating member 21. The limiting plate 231 and the rotating member 21 are used to clamp the parachute canopy. In this embodiment, by using the limiting plate 231 in conjunction with the rotating member 21 to clamp the parachute canopy, the parachute canopy is connected to the support frame 100. When the support frame 100 is retracted, it can drive the parachute canopy to retract; when the parachute canopy is opened, it can drive the support frame 100 to extend. In addition, the limiting screw 232 has a certain amount of room for movement, so that the distance between the limiting plate 231 and the rotating member 21 is adjustable, which can be used to clamp parachute canopies of different thicknesses to improve the compatibility of the connection.
[0028] Furthermore, the support rod 22 has a through hole (not shown in the figure) for threading a binding rope through and connecting it to the umbrella canopy. In this embodiment, the support rod 22, in addition to connecting the rotating member 21 of another support frame 100 to achieve end-to-end connection of multiple support frames 100, can also serve as a part for connecting the umbrella canopy. The support rod 22 is relatively long, and one or more through holes can be opened on it to provide one or more installation positions for the umbrella canopy. In addition to being clamped and fixed by the limiting plate 231 and the rotating member 21, the umbrella canopy can also be connected to the umbrella canopy by binding rope through the support rod 22 to increase the connection area between the umbrella canopy and the support frame 100.
[0029] Secondly, please refer to Figures 4 to 6The present invention also provides a parachute 200, including a canopy 4 and a plurality of the above-mentioned support frames 100. The plurality of support frames 100 are connected end to end to the first support member 1 by support rods 22 to form a ring. The air inlet of the canopy 4 is connected to the mounting structure 23 of the plurality of support frames 100.
[0030] The first support member 1 has an insertion hole on the side opposite to the slot 11. The insertion hole is interference-fitted with the support rod 22 of the adjacent support frame 100 so that the two adjacent support frames 100 can be detachably inserted.
[0031] In one embodiment, please refer to Figure 2 The canopy 4 has a through mounting port. The mounting structure 23 includes a limiting plate 231 and limiting screws 232. The canopy 4 is located between the limiting plate 231 and the rotating component 21. The limiting screws 232 pass through the limiting plate 231 and the mounting port in sequence and are threaded to the rotating component 21. Multiple limiting screws 232 and multiple mounting ports are provided, with the positions of the multiple mounting ports corresponding to the positions of the multiple limiting screws 232. This allows the multiple limiting screws 232 to pass through the multiple mounting ports, so that in addition to clamping the canopy with the rotating component 21, the limiting plate 231 can also limit the position of the canopy through the mounting ports of the canopy with the limiting screws 232.
[0032] In one embodiment, please refer to Figure 5 The multiple support frames 100 are arranged in opposite directions, so that when the multiple support frames 100 are stored, the first support member 1 and the rotating member 21 rotate relative to each other, and the support frame 100 can deform toward the center of the air inlet of the umbrella canopy, so as to drive the umbrella canopy 4 to be stored.
[0033] To better understand this invention, the following is combined with... Figures 1 to 6 The technical solution of the present invention will be described in detail below: The present invention provides multiple support frames 100, which are connected end-to-end via support rods 22 and first support members 1 to form a ring. These multiple support frames 100 can surround the periphery of the air inlet of the parachute canopy 4. When the rotating member 21 separates from the first support member 1, the multiple support frames 100 can fold, causing the canopy 4 to be in a stowed state. When the canopy 4 is released, it unfolds due to airflow, causing the rotating members 21 of the multiple support frames 100 to rotate and engage with the first support member 1, thus fixing the air inlet of the canopy 4. When the parachute drops its counterweight and suddenly loses weight, causing a significant change in air pressure inside and outside the canopy 4, the first support member 1 and the rotating member 21 of the multiple support frames 100 can remain relatively fixed through engagement, thereby limiting large deformation of the air inlet of the canopy 4 and preventing the canopy 4 from collapsing and failing.
[0034] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A supporting frame, characterized in that, include: First support component; and The second support component includes a rotating component, a support rod, and a mounting structure. The rotating component is rotatably connected to the first support component. One end of the support rod is connected to the rotating component, and the other end of the support rod and the first support component both have a connection structure that allows them to be connected when multiple support frames are combined. The rotating component can be detachably engaged with the first support component when rotating relative to it. The mounting structure is used to connect the parachute canopy.
2. The supporting frame according to claim 1, characterized in that, The second support member also includes an elastic member, and the first support member has a slot. When the first support member rotates relative to the rotating member, it can drive the slot to detachably engage the elastic member.
3. The supporting frame according to claim 2, characterized in that, The elastic element includes a slider and a spring. The slider is slidably connected to the rotating element, and the spring is connected to the slider and can drive the slider to extend outside the rotating element through elastic force so as to detachably engage with the slot.
4. The supporting frame according to claim 3, characterized in that, The slider has a guide arc surface on the side away from the spring, and the rotating member can abut against the groove wall of the slot through the guide arc surface when it rotates relative to the first support member.
5. The supporting frame according to claim 1, characterized in that, The first support member includes a first connecting ring, and the second support member further includes a second connecting ring. The second connecting ring is disposed on the rotating member, and the support frame further includes a connecting screw. The connecting screw passes through the first connecting ring and the second connecting ring and is threaded to a nut.
6. The supporting frame according to claim 1, characterized in that, The mounting structure includes a limiting plate and a limiting screw. The limiting screw passes through the limiting plate and is threaded to the rotating component. The limiting plate and the rotating component are used to clamp the parachute canopy.
7. The supporting frame according to claim 1, characterized in that, The support rod has a through hole for threading a binding rope and connecting it to the umbrella canopy.
8. A parachute, characterized in that, The umbrella includes a canopy and multiple support frames as described in any one of claims 1-7. The multiple support frames are connected end-to-end to the first support member by the support rod to form a ring. The air inlet of the umbrella is connected to the mounting structure of the multiple support frames.
9. The parachute according to claim 8, characterized in that, The umbrella canopy has a through mounting opening. The mounting structure includes a limiting plate and a limiting screw. The umbrella canopy is located between the limiting plate and the rotating component. The limiting screw passes through the limiting plate and the mounting opening in sequence and is threaded to the rotating component.
10. The parachute according to claim 8, characterized in that, The orientations of the multiple support frames are alternately opposite.