A foldable trampoline
By using the rotating connection between the folding rod and the rotating handle, as well as the linkage design of the connecting rod, the trampoline can be compactly folded, solving the problem of the trampoline being large when unfolded and still large when folded, thus improving portability and storage efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陈巍
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-24
AI Technical Summary
Existing trampolines are bulky and take up a lot of space when unfolded, and they are still quite large when folded, with a complex structure that makes them difficult to carry.
The folding mechanism is formed by the rotational connection between the folding rod and the rotating handle, the cross rotation of the first link, and the sliding linkage of the second link, which ensures the structural stability when unfolded and the coordinated contraction of each component when folded.
It significantly reduces the space occupied after folding, improves portability and storage efficiency, solves the problem of large folding size of trampolines, and simplifies the structure.
Smart Images
Figure CN224540876U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of trampoline technology, and more specifically, relates to a foldable trampoline. Background Technology
[0002] A trampoline is a fun sport in which a user stands on a frame supported by legs and has a bouncy surface stretched by a number of radial elastic components, allowing the user to bounce continuously.
[0003] Since trampoline users jump off the surface and rely on the rebound force generated by the impact of landing back on the surface in a non-fixed manner to increase the height of the jump, the trampoline's surface must have a certain area. Therefore, the trampoline is very large when unfolded and in use, and inevitably occupies a considerable amount of space.
[0004] Currently, most trampolines are constructed by welding their components together, making them impossible to disassemble. Some manufacturers have designed trampolines to be modular, but assembly is extremely complex. Folding trampolines have also emerged, but even simply folding them in half still results in a significant space requirement. Utility Model Content
[0005] This invention provides a foldable trampoline that can be folded and occupies little space when folded.
[0006] This utility model discloses a foldable trampoline, comprising a spring mattress and a folding frame; the spring mattress is made of elastic material; a hollow section is formed in the middle of the folding frame, and the spring mattress is placed inside the hollow section; the folding frame includes multiple connecting seats and multiple supporting legs; the multiple connecting seats are located above the multiple supporting legs, and the multiple connecting seats and the multiple supporting legs are arranged vertically and vertically; folding rods are rotatably arranged on both sides of the upper end of the connecting seats to connect the multiple connecting seats end to end through the folding rods; the opposite ends of two folding rods facing each other are rotatably connected; and folding rods are rotatably arranged on both sides of the lower end of the connecting seats. The first link, on the adjacent sides of the adjacent connecting seat, consists of two first links facing each other, which are intersected and rotatably connected along the intersection center; the second link is rotatably arranged on both sides of the support foot; the end of the second link away from the support foot is rotatably connected to the corresponding first link located above it, and the rotation center of the second link and the first link is located above the intersection center of the first links on the same side; the end of each first link is rotatably connected to a limit sleeve, which is sleeved on the outside of the corresponding second link on the lower side of the first link and slidably connected to the second link.
[0007] As a further improvement of this utility model, the upper ends of the multiple connecting seats are provided with first connecting grooves on both sides, and the multiple folding rods are respectively rotatably set in the corresponding first connecting grooves.
[0008] As a further improvement of this utility model, a second connecting groove is provided on the lower ends of both sides of the multiple connecting seats, and the multiple first connecting rods are respectively rotatably disposed in the corresponding second connecting grooves.
[0009] As a further improvement of this utility model, support grooves are provided at both ends of the multiple support feet; multiple second connecting rods are respectively rotatably disposed in the corresponding support grooves.
[0010] As a further improvement of this utility model, the opposite ends of the two opposing folding rods are provided with matching rotating handles, and a fixing bolt is provided through the middle of the rotating handle; the two opposing rotating handles are rotatably connected along the fixing bolt in the middle.
[0011] As a further improvement of this utility model, when the folding rod is in a straight state, the upper ends of the rotating handles abut against each other, while the lower ends are not restricted by the abutment, thereby limiting the folding direction.
[0012] As a further improvement of this utility model, at least one connecting seat has a through groove in the middle; at least one supporting leg has a fixing groove in the middle, and the through groove and the fixing groove are aligned vertically; a handrail is provided in the through groove, and the handrail passes through the through groove and is inserted into the fixing groove for fixation; the handrail and the folding frame are detachably connected.
[0013] As a further improvement of this utility model, the handrail frame includes a pole body, a movable pole, and a handrail; the pole body is a hollow pole, and the pole body passes through a through-groove and is inserted into a fixed groove; the movable pole is slidably connected to the pole body and fixedly connected to the handrail; a fastening bolt is provided on the outer wall of the pole body, and the fastening bolt abuts against the movable pole to limit the movable pole.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: A compact folding mechanism is formed through the rotational connection between the folding rod and the rotating handle, the cross rotation of the first link, and the sliding linkage of the second link. When the rotating handle is in a straight position, its upper ends abut against each other, restricting the folding direction and ensuring structural stability when unfolded. The rotational and sliding connection between the first and second links allows all components to retract collaboratively when the folding frame is closed, significantly reducing the space occupied after folding. This solves the technical problems of large folding volume and complex structure in existing folding trampolines, improving portability and storage efficiency. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the trampoline in its unfolded state according to this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A; Figure 3 This utility model Figure 1 Enlarged structural diagram at point B; Figure 4 This is a three-dimensional structural diagram of the connector of this utility model; Figure 5 This is a three-dimensional structural diagram of the connector with a communicating groove of this utility model; Figure 6 This is a three-dimensional structural diagram of the support foot of this utility model; Figure 7 This is a three-dimensional structural diagram of the support foot with a fixing groove of the present invention; Figure 8 This is a three-dimensional structural diagram of the trampoline in its folded state according to the present invention; Figure 9 This is a partial three-dimensional structural diagram of the trampoline in its folded state according to this utility model. Figure 10 This utility model Figure 9 A magnified structural diagram at point C.
[0016] Explanation of the labels in the diagram: 1. Spring bed fabric, 2. Folding frame, 21. Connecting seat, 211. First connecting groove, 212. Second connecting groove, 213. Connecting groove, 214. Folding rod, 214-1. Rotating handle, 215. First connecting rod, 216. Limiting sleeve, 22. Support foot, 221. Support groove, 222. Fixing groove, 223. Second connecting rod, 3. Handrail frame, 31. Handrail, 32. Fastening bolt. Detailed Implementation
[0017] Specific Implementation Example 1: Please refer to Figures 1-10 A foldable trampoline includes a spring mattress 1, a folding frame 2, and a handrail frame 3. The folding frame 2 has a hollow section in the middle, and the spring mattress 1 is arranged around the hollow section of the folding frame 2. The handrail frame 3 is installed on one side of the folding frame 2, and the handrail frame 3 is detachably connected to the folding frame 2.
[0018] Specifically, the folding frame 2 includes connecting seats 21 and supporting legs 22, with multiple connecting seats 21 and supporting legs 22. First connecting grooves 211 are respectively opened at the upper ends of both sides of the connecting seat 21, and second connecting grooves 212 are respectively opened at the lower ends of both sides of the connecting seat 21. A through groove 213 is opened in the middle of one of the connecting seats 21 for inserting the handrail frame 3. Folding rods 214 are provided in the first connecting grooves 211 on both sides of the connecting seat 21, and the folding rods 214 are rotatably connected to the wall of the first connecting groove 211. The two ends of the multiple connecting seats 21 are connected by the folding rods 214 to form a closed hollow section inside the folding frame 2. Adjacent ends of the multiple folding rods 214 are respectively provided with matching rotating handles 214-1. A fixing bolt is provided through the middle of the multiple rotating handles 214-1, and the multiple rotating handles 214-1 are rotatably connected along the middle fixing bolt to form a folded section with adjacent rotating handles 214-1. Two opposing rotating handles 214-1 fit together to form a complete rotating pivot, with one side of each handle 214-1 transitioning to the upper surface of the folding rod 214 to create a continuous, flat end face. The end of each handle 214-1 corresponding to the flat end face is a rotating arc surface, allowing for inward folding along this arc. It should be noted that each pair of adjacent rotating handles 214-1 are matched and protrude from the lower side of the folding rod 214. When two adjacent folding rods 214 are in a flat state, their upper folded portions abut against each other, preventing the lower ends of the folded portions from concave. However, the lower sides of the two opposing rotating handles 214-1 are not abutted, allowing the folding rod 214 to protrude upwards from the folded portion. Each of the second connecting slots 212 has a first connecting rod 215 rotatably mounted within it. On adjacent sides of the adjacent connecting seats 21, there are two first connecting rods 215 facing each other, intersecting each other. A fixing bolt passes through the center of the intersection, and the two intersecting first connecting rods 215 are rotatably connected along the fixing bolt at the center of the intersection. A limiting sleeve 216 is rotatably connected to the end of the first connecting rod 215, and a sleeve is formed at the end of the limiting sleeve 216 away from the first connecting rod 215. Support feet 22 are correspondingly mounted to the connecting seats 21, and the number of support feet 22 is the same as that of the connecting seats 21. Support slots 221 are formed at both ends of each support foot 22, and a fixing slot 222 is formed through the middle of one of the support seats 22. The fixing slot 222 is vertically aligned with the connecting slot 213 so that the handrail frame 3 can be inserted through the connecting slot 213 into the fixing slot 222 for fixation. Multiple second connecting rods 223 are rotatably arranged in the support groove 221, and the other end of the multiple second connecting rods 223 is rotatably connected to the first connecting rod 215 in the corresponding upper connecting seat 21. The limiting sleeve 216 at the end of the first connecting rod 215 is sleeved on the outside of the adjacent corresponding lower second connecting rod 223 through a sleeve, and the limiting sleeve 216 is slidably connected to the second connecting rod 223.The rotation center of the second link 223 on the first link 215 is located above the intersection center of the first link 215 on the same side, so that the folding frame 2 as a whole has the ability to unfold or fold.
[0019] Specifically, the handrail frame 3 includes a pole body, a movable rod, a handrail 31, and a fastening bolt 32. The pole body is hollow and passes through the connecting groove 213 and is inserted into the fixing groove 222 for limiting and fixing. The movable rod is fixedly connected to the handrail 31 and is embedded in the pole body, with the movable rod slidably connected to the pole body. The fastening bolt 32 is located on the outer wall of the pole body, and the fastening bolt 32 passes through the pole body wall and abuts against the movable rod, so that the position of the movable rod within the pole body can be adjusted by the tightness of the fastening bolt 32, thereby realizing the height adjustment of the handrail 31.
[0020] Working principle: This foldable trampoline achieves its folding function through a linkage structure of the folding frame 2. The folding frame 2 includes multiple connecting seats 21 and multiple supporting legs 22. The folding rods 214 on both sides of the upper end of adjacent connecting seats 21 are rotatably connected by a rotating handle 214-1 and a central fixing bolt. The first connecting rods 215 on both sides of the lower end of the connecting seats 21 are arranged crosswise and rotate around the center of the cross. The second connecting rods 223 on both sides of the upper end of the supporting legs 22 are rotatably connected to the first connecting rods 215, and the rotation center of the second connecting rods 223 and the first connecting rods 215 is located above the center of the cross of the first connecting rods 215 on the same side. When folding, the lower end of the rotating handle 214-1 is not subject to abutment restriction, causing the folding rods 214 to bulge upward. At the same time, the limiting sleeves 216 at the ends of the first connecting rods 215 slide along the second connecting rods 223, linking the contraction of each component, so that the folding frame 2 is folded up as a whole, greatly reducing its volume.
Claims
1. A foldable trampoline, characterized in that: Includes a spring mattress (1) and a folding frame (2); The spring mattress (1) is made of elastic material; The folding frame (2) has a hollow section in the middle, and the spring bed cloth (1) is placed in the hollow section; the folding frame (2) includes multiple connecting seats (21) and multiple supporting legs (22); the multiple connecting seats (21) are located above the multiple supporting legs (22), and the multiple connecting seats (21) and the multiple supporting legs (22) are arranged vertically and vertically respectively; Folding rods (214) are rotatably provided on both sides of the upper end of the connecting seat (21) so as to connect multiple connecting seats (21) end to end through the folding rods (214); the opposite ends of the two folding rods (214) arranged in opposite directions are rotatably connected to each other; The lower ends of the connecting seat (21) are provided with first connecting rods (215) that rotate relative to each other. The adjacent sides of the adjacent connecting seats (21) are provided with two first connecting rods (215) that face each other. They are intersected and rotated together along the center of intersection. The second link (223) is rotatably provided on both sides of the support foot (22); the end of the second link (223) away from the support foot (22) is rotatably connected to the corresponding first link (215) located on its upper side, and the rotation center of the second link (223) and the first link (215) is located on the upper side of the intersection center of the first link (215) on the same side; the end of the first link (215) is rotatably connected to the limit sleeve (216), the limit sleeve (216) is sleeved on the outside of the second link (223) corresponding to the lower side of the first link (215) and is slidably connected to the second link (223).
2. The foldable trampoline according to claim 1, characterized in that: Multiple connecting seats (21) have first connecting grooves (211) on both sides of their upper ends, and multiple folding rods (214) are respectively rotatably set in the corresponding first connecting grooves (211).
3. A foldable trampoline according to claim 2, characterized in that: The lower ends of both sides of the multiple connecting seats (21) are provided with second connecting grooves (212), and the multiple first connecting rods (215) are respectively rotatably set in the corresponding second connecting grooves (212).
4. A foldable trampoline according to claim 1, characterized in that: Multiple support feet (22) have support grooves (221) at both ends; multiple second connecting rods (223) are rotatably installed in their respective support grooves (221).
5. A foldable trampoline according to claim 1, characterized in that: Two opposing folding rods (214) are provided with matching rotating handles (214-1) at their opposite ends, and a fixing bolt is provided through the middle of the rotating handles (214-1); the two opposing rotating handles (214-1) are rotatably connected along the fixing bolt in the middle.
6. A foldable trampoline according to claim 5, characterized in that: When the folding rod (214-1) is in a straight state, the upper ends of the rotating handle (214-1) abut against each other, while the lower ends are not restricted by the abutment, thus limiting the folding direction.
7. A foldable trampoline according to claim 1, characterized in that: At least one connecting seat (21) has a through groove (213) in the middle; at least one support leg (22) has a fixing groove (222) in the middle, and the through groove (213) and the fixing groove (222) are aligned vertically; a handrail (3) is provided in the through groove (213), and the handrail (3) passes through the through groove (213) and is inserted into the fixing groove (222) for fixing; the handrail (3) and the folding frame (2) are detachably connected.
8. A foldable trampoline according to claim 7, characterized in that: The handrail frame (3) includes a pole body, a movable pole and a handrail (31); the pole body is a hollow pole, and the pole body passes through the connecting groove (213) and is inserted into the fixed groove (222); the movable pole is slidably connected to the pole body and fixedly connected to the handrail (31); a fastening bolt (32) is provided on the outer wall of the pole body, and the fastening bolt (32) abuts against the movable pole to limit the movable pole.