A fully foldable trampoline

Abstract

This utility model relates to a fully foldable trampoline, belonging to the field of recreational trampoline technology. Specifically, it includes a foldable trampoline frame and a jumping mat. The foldable trampoline frame is mainly composed of several sets of multi-link cross-folding mechanisms, pivotally connected end-to-end. Each set of multi-link cross-folding mechanisms includes double-section rods and support rods that are cross-mounted together. The two ends of the double-section rods are respectively provided with upper and lower connecting frames for hinged connection with the support rods in adjacent multi-link cross-folding mechanisms. This utility model utilizes the double-section rod structural design, allowing the support rods to be cross-assembled with the double-section rods on the same plane. After unfolding, the pressure from the trampoline can be distributed and transferred from the pins, effectively preventing pin deformation. It also serves as a downward pressure limit and positioning mechanism, reducing the compressive pressure on the connecting frames or pivots, thereby increasing the service life of the connecting frames or pivots.

Description

Technical Field

[0001] This utility model relates to the field of recreational trampoline technology, specifically to a fully folding trampoline. Background Technology

[0002] Trampolines are a common recreational facility, currently available in both fixed and foldable portable types. Foldable portable trampolines, with their convenient folding mechanism, are particularly popular. However, many foldable trampolines on the market today use straight rods in their cross-folding frames (as disclosed in patent CN118698086A), with the hinges connected by pins. The load-bearing points of the unfolded frame are all on these pins. Furthermore, the staggered design of the two straight rods means that under pressure, the pins experience shear forces at both ends. This makes the hinge points of the two rods in the folding frame prone to deformation or loosening over time, potentially leading to pin deformation or detachment. This affects the ease of folding and the safety of the trampoline during use.

[0003] Moreover, in the publicly disclosed patent technology "CN118698086A", the downward pressure limit and positioning function of the folding bracket is determined by the upper connecting frame and the pivot. Every time the user jumps on the trampoline, the pivot and the upper connecting frame will be subjected to a large impact force, which seriously affects the service life of the pivot and the upper connecting frame. Utility Model Content

[0004] This invention provides a fully foldable trampoline to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0006] This utility model discloses a fully foldable trampoline, including a foldable trampoline frame and a jumping cloth. The foldable trampoline frame is mainly composed of several sets of multi-link cross folding mechanisms connected end to end.

[0007] Furthermore, each of the multi-link cross-folding mechanisms includes a double-section rod and a support rod that are cross-mounted together. The double-section rod includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are fixed together by a Z-shaped connector. The first connecting rod and the second connecting rod are staggered and have a gap to facilitate the passage of the support rod. After passing through the gap between the double-section rods, the support rod is hinged to the connector by a first pin.

[0008] Furthermore, both ends of the double-section rod and the support rod are provided with an upper connecting frame and a lower connecting frame for hinged connection with the double-section rod and the support rod in the adjacent multi-link cross-folding mechanism.

[0009] Furthermore, each set of the multi-link cross-folding mechanism also includes a folding rod frame hinged to the upper connecting frame; the folding rod frame includes a first rod frame and a second rod frame, and the end of the first rod frame and the second rod frame that is hinged to the upper connecting frame is a connecting square head.

[0010] The first and second rods are respectively welded to a hinge seat sub-frame and a hinge seat main frame at opposite ends. The end of the first rod is movably locked inside the hinge seat main frame, and the hinge seat sub-frame and the hinge seat main frame are hinged together by a fourth pin.

[0011] Furthermore, the lower connecting frame includes two bent first connecting plates and second pins located at both ends of the two first connecting plates for hinged connection with the double-section rod or the support rod.

[0012] Furthermore, the upper connecting frame includes a connecting cylinder, and two parallel and bent second connecting plates are welded to opposite sides of the surface of the connecting cylinder. A gap is left between the two second connecting plates for installing the double-section rod, the support rod, and the folding rod frame. The second connecting plates on both sides of the connecting cylinder are provided with two third pins distributed at the top and bottom to hinge the double-section rod, the support rod, and the folding rod frame to the upper connecting frame.

[0013] Furthermore, the two second connecting plates in the upper connecting frame have the same bending angle as the first connecting plate in the lower connecting frame, and a reinforcing rib is integrally formed in the middle of the two second connecting plates in the upper connecting frame.

[0014] Furthermore, a pad is installed at the end of the double-section rod and the support rod near the lower connecting frame.

[0015] Furthermore, it also includes two sets of handrail connecting seats and two handrail support rods. The two sets of handrail connecting seats are cylindrical in design and are vertically welded between the first connecting plates in the two lower connecting frames. The two handrail support rods slide through the inner side of the connecting cylinder in the corresponding two upper connecting frames and are vertically inserted into the two sets of handrail connecting seats located below.

[0016] Furthermore, a handrail is installed between the two handrail support rods, with both ends of the handrail slidably inserted into the inside of the handrail support rod, and an adjusting component for fixing the handrail is provided at the top of the handrail support rod.

[0017] Furthermore, the edge of the jump cloth is connected to the folding rod in each group of multi-link cross-folding mechanisms via a connecting strap.

[0018] The advantages of this utility model over the prior art are as follows:

[0019] This invention departs from the traditional staggered double straight bar design of folding trampolines, employing a double-section bar and support bar that interlock. The double-section bar structure allows the support bar and double-section bars to be assembled on the same plane. When unfolded, the opposite ends of the double-section bars can symmetrically contact the support bar surface on both sides of the support bar, centered on the pin, thus dispersing and transferring the pressure from the trampoline from the pin. Furthermore, when the double-section bar and support bar are hinged, the hinge pin is located at the center of both the support bar and the double-section bar, resulting in uniform force distribution, structural stability, and effective prevention of deformation. Additionally, the combination of the double-section bar and support bar provides downward pressure limiting and positioning after the trampoline folding frame is unfolded, reducing the compressive pressure on the connecting frame or pivot joint and thus extending their service life. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the multi-link cross-folding mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the folded structure of the trampoline frame of this utility model;

[0024] Figure 4 This is a schematic diagram of the trampoline support frame of this utility model when it is half-folded.

[0025] Reference numerals: 1. Multi-link cross-folding mechanism; 101. Double-section rod; 111. First link; 112. Second link; 113. Connector; 114. First pin; 102. Support rod; 103. Lower connecting frame; 131. First connecting plate; 132. Second pin; 104. Foot pad; 105. Upper connecting frame; 151. Connecting cylinder; 152. Second connecting plate; 153. Reinforcing rib; 154. Third pin; 106. Folding rod frame; 161. First rod frame; 162. Second rod frame; 163. Connecting square head; 164. Hinge seat sub-frame; 165. Hinge seat main frame; 166. Fourth pin; 2. Skip fabric; 3. Connecting strap; 4. Handrail support rod; 5. Handrail rod; 6. Adjusting component; 7. Handrail connecting seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0032] Example

[0033] Addressing the issue that the folding support structure design of currently disclosed folding trampoline technologies (public patent: CN118698086A) is prone to deformation and loosening in actual use, affecting its normal service life, we have designed a structurally stable and pressure-resistant fully folding trampoline. This design departs from the traditional double-straight-bar staggered cross design of folding trampolines. Utilizing a double-section rod 101 structure, the support rod 102 can be aligned with the double-section rod 101 on the same plane for cross-assembly. After unfolding, the opposite end of the double-section rod 101 can be positioned on both the upper and lower surfaces of the support rod 102. The pin, symmetrically positioned at a central angle, contacts the surface of support rod 102, thus dispersing and transferring the pressure from the trampoline from the pin. Furthermore, when the double-section rod 101 is hinged to support rod 102, the hinge pin is located at the center of support rod 102 and double-section rod 101, resulting in uniform force distribution and structural stability, effectively preventing deformation. Additionally, the cooperation between double-section rod 101 and support rod 102 serves to limit and position the trampoline folding frame after unfolding, reducing the compressive pressure on the connecting frame or pivot joint, thereby increasing its service life. The specific solution is as follows:

[0034] like Figures 1-4As shown, this embodiment provides a fully foldable trampoline, which specifically includes a foldable trampoline frame and a jumping cloth 2. The foldable trampoline frame is mainly composed of several sets of multi-link cross folding mechanisms 1, which are pivotally connected end to end. Preferably, there are six or eight sets of multi-link cross folding mechanisms 1, which together form a regular hexagonal or regular octagonal foldable trampoline frame.

[0035] In this embodiment, each multi-link cross-folding mechanism 1 includes a double-section rod 101 and a support rod 102 that are cross-mounted together. The double-section rod 101 includes a first connecting rod 111 and a second connecting rod 112. The first connecting rod 111 and the second connecting rod 112 are fixed together by a Z-shaped connector 113. The first connecting rod and the second connecting rod are staggered and have a gap to facilitate the passage of the support rod 102. After the support rod 102 passes through the gap between the double-section rods 101, it is hinged to the connector 113 through a first pin 114.

[0036] In order to realize the pivot connection of the two adjacent multi-link cross folding mechanism 1 to form an enclosed whole, an upper connecting frame 105 and a lower connecting frame 103 are provided at both ends of the double-section rod 101 and the support rod 102 to be hinged to the double-section rod 101 and the support rod 102 in the adjacent multi-link cross folding mechanism 1.

[0037] like Figures 2-4 As shown, each set of multi-link cross-folding mechanisms 1 also includes a folding rod frame 106 hinged to the upper connecting frame 105. The edge of the trampoline 2 is connected to the folding rod frame 106 in each set of multi-link cross-folding mechanisms 1 via a connecting strap 3. Specifically, the folding rod frame 106 includes a first rod frame 161 and a second rod frame 162. The end of the first rod frame 161 and the second rod frame 162 that is hinged to the upper connecting frame 105 is a connecting square head 163. In order to facilitate the hinge connection with the upper connecting frame 105, the connecting square head 163 is pre-set with a through hole for easy pin shaft to pass through. In addition, in order to improve the safety of the trampoline, the first rod frame 161 and the second rod frame 162 of the folding rod frame 106 are both designed with round tubes, which can reduce the impact damage caused by the sharp corners of the square tubes during impact compared with square tubes.

[0038] To improve the compressive strength of the folding frame 106 after it is unfolded, a hinge seat sub-frame 164 and a hinge seat main frame 165 are welded to the opposite ends of the first frame 161 and the second frame 162, respectively. The end of the first frame 161 is movably locked inside the hinge seat main frame 165, and the hinge seat sub-frame 164 and the hinge seat main frame 165 are hinged together by a fourth pin 166. After the folding frame 106 is unfolded, the ends of the first frame 161 and the second frame 162 abut against each other. The fourth pin 166 is used to cooperate with the hinge seat sub-frame 164 and the hinge seat main frame 165 to achieve positioning, so that the folding frame 106 can always maintain a relatively stable horizontal state when subjected to pressure after it is unfolded.

[0039] The lower connecting frame 103 includes two bent first connecting plates 131, which are arranged parallel to each other. The two ends of the two first connecting plates 131 are respectively provided with second pins 132 for hinged to the double-section rod 101 or the support rod 102. The entire lower connecting frame 103 is a metal sheet metal part, which is simpler and lighter in structure than the traditional one-piece connecting frame design.

[0040] In order to simplify the structure of the upper connecting frame 105 without affecting its strength, the upper connecting frame 105 is constructed entirely of metal components, specifically including a connecting cylinder 151. Two parallel and bent second connecting plates 152 are welded to opposite sides of the surface of the connecting cylinder 151. A gap is left between the two second connecting plates 152 for installing the double-section rod 101, the support rod 102, and the folding rod frame 106. The second connecting plates 152 on both sides of the connecting cylinder 151 are provided with two third pins 154 arranged in an upper and lower position to hinge the double-section rod 101, the support rod 102, and the folding rod frame 106 to the upper connecting frame 105.

[0041] Among them, the two second connecting plates 152 in the upper connecting frame 105 have the same bending angle as the first connecting plate 131 in the lower connecting frame 103, and the upper connecting frame 105 and the lower connecting frame 103 are designed to be vertically opposite each other. In order to improve the strength of the upper connecting frame 105, a reinforcing rib 153 is integrally formed in the middle position of the two second connecting plates 152 in the upper connecting frame 105.

[0042] like Figures 2-4 As shown, in order to improve the stability of the folding trampoline after it is unfolded and set up, a foot 104 is installed at one end of the double-section rod 101 and the support rod 102 near the lower connecting frame 103. In order to ensure that the bottom of the foot 104 can effectively contact the ground after the entire multi-link cross folding mechanism 1 is fully unfolded, the foot 104 adopts a bending design.

[0043] The entire folding trampoline also includes two sets of handrail connecting seats 7 and two handrail support rods 4. The two sets of handrail connecting seats 7 are cylindrical in design and are vertically welded between the first connecting plates 131 in the two lower connecting frames 103. The two handrail support rods 4 slide through the inner side of the connecting cylinders 151 in the corresponding two upper connecting frames 105 and are vertically inserted into the two sets of handrail connecting seats 7 located below. The handrail support rods 4 and the handrail connecting seats 7 are fixed by welding or threaded assembly.

[0044] To facilitate use of the trampoline by beginners, a handrail 5 is installed between the two handrail support rods 4. The two ends of the handrail 5 are slidably inserted into the inside of the handrail support rod 4, and an adjusting component 6 for fixing the handrail 5 is provided at the top of the handrail support rod 4. The adjusting component 6 is preferably an adjusting bolt.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A full-fold trampoline comprising a foldable trampoline frame and a jumping mat (2), characterized in that: The folding trampoline frame is mainly composed of several sets of multi-link cross folding mechanisms (1) with the head and tail pivots connected together. Each of the multi-link cross-folding mechanisms (1) includes a double-section rod (101) and a support rod (102) that are cross-mounted together. The double-section rod (101) includes a first connecting rod (111) and a second connecting rod (112). The first connecting rod (111) and the second connecting rod (112) are fixed together by a connector (113). The first connecting rod and the second connecting rod are staggered and have a gap to facilitate the passage of the support rod (102). After the support rod (102) passes through the gap between the double-section rods (101), it is hinged to the connector (113) by a first pin (114). The two-section rod (101) and the support rod (102) are provided with an upper connecting frame (105) and a lower connecting frame (103) at both ends for hinged connection with the two-section rod (101) and the support rod (102) in the adjacent multi-link cross-folding mechanism (1).

2. A fully foldable trampoline as claimed in claim 1, wherein: Each of the multi-link cross-folding mechanisms (1) further includes a folding rod frame (106) hinged to the upper connecting frame (105); the folding rod frame (106) includes a first rod frame (161) and a second rod frame (162), and the end of the first rod frame (161) and the second rod frame (162) that is hinged to the upper connecting frame (105) is a connecting square head (163); The first rod (161) and the second rod (162) are respectively welded to the opposite ends of the hinge seat sub-frame (164) and the hinge seat main frame (165). The end of the first rod (161) is movably locked inside the hinge seat main frame (165), and the hinge seat sub-frame (164) and the hinge seat main frame (165) are hinged together by the fourth pin (166).

3. A fully foldable trampoline as claimed in claim 1, wherein: The connector (113) has a Z-shaped structure design.

4. A fully foldable trampoline as claimed in claim 1, wherein: The lower connecting frame (103) includes two bent first connecting plates (131) and second pins (132) located at both ends of the two first connecting plates (131) for hinged connection with the double-section rod (101) or the support rod (102).

5. A fully folded trampoline as claimed in claim 1, wherein: The upper connecting frame (105) includes a connecting cylinder (151). Two parallel and bent second connecting plates (152) are welded to opposite sides of the surface of the connecting cylinder (151). A gap is left between the two second connecting plates (152) for installing the double-section rod (101), the support rod (102) and the folding rod frame (106). Two third pins (154) are provided on the second connecting plates (152) on both sides of the connecting cylinder (151) to hinge the double-section rod (101), the support rod (102) and the folding rod frame (106) to the upper connecting frame (105).

6. A fully folded trampoline according to claim 5, wherein: The bending angles of the two second connecting plates (152) in the upper connecting frame (105) and the first connecting plate (131) in the lower connecting frame (103) are the same, and a reinforcing rib (153) is integrally formed in the middle of the two second connecting plates (152) in the upper connecting frame (105).

7. A fully folded trampoline as claimed in claim 1, wherein: Both the double-section rod (101) and the support rod (102) have a pad (104) installed at the end near the lower connecting frame (103).

8. A fully folded trampoline as claimed in claim 1, characterized in that: It also includes two sets of handrail connecting seats (7) and two handrail support rods (4). The two sets of handrail connecting seats (7) are cylindrical and are vertically welded between the first connecting plates (131) in the two lower connecting frames (103). The two handrail support rods (4) slide through the inner side of the connecting cylinder (151) in the corresponding two upper connecting frames (105) and are vertically inserted into the two sets of handrail connecting seats (7) located below.

9. A fully folded trampoline according to claim 8, characterised in that: A handrail (5) is also installed between the two handrail support rods (4). The two ends of the handrail (5) are slidably inserted into the inside of the handrail support rod (4). The top of the handrail support rod (4) is provided with an adjusting component (6) for fixing the handrail (5).

10. A fully foldable trampoline as claimed in claim 1, wherein: The edge of the jump cloth (2) is connected to the folding rod (106) in each group of multi-link cross folding mechanisms (1) via a connecting strap (3).

Images