Trampoline frame

Abstract

The utility model discloses a trampoline frame, and belongs to the field of entertainment articles for children. The trampoline frame comprises straight pipes, an arc-shaped pipe and supporting legs, the arc-shaped pipe is arranged at the ends of the straight pipes, the supporting legs are installed in the middle of the arc-shaped pipe, the outer side edges of the two ends of the arc-shaped pipe and the outer side edges of the ends of the two straight pipes intersect at a point c and a point d respectively, the point c and the point d intersect at a point a in the direction perpendicular to the straight pipes, and the point c and the point d intersect at a point f in the extending direction of the straight pipes. The point a and the point f are connected to form a line segment af, a virtual circle is drawn with the point a as the circle center and the line segment ac as the radius, the virtual circle and the line segment af intersect at a point b, the outer side edge of the arc-shaped pipe and the line segment af intersect at a point e, the line segment ab is smaller than ae, the point c, the point e and the point d are connected to form an arc line segment ced, and the arc line segment ced coincides with the outer side edge of the arc-shaped pipe. The trampoline solves the problem that in the prior art, when a plurality of trampoline bodies of circular structures are arranged side by side, the space utilization rate is low.

Description

Technical Field

[0001] The utility model belongs to the field of children's entertainment products, in particular to a trampoline frame. Background Art

[0002] In the Chinese utility model patent with announcement number: CN 217311757 U, announcement date: 2022.08.30, utility model name: A children's trampoline structure, it is disclosed: "A children's trampoline structure, including a bed frame assembly; characterized in that the bed frame assembly is annular as a whole, the surface of the bed frame assembly is covered with a mesh surface, the top of the bed frame assembly is movably connected to the handrail assembly, and the bottom of the bed frame assembly is movably connected to a plurality of trampoline legs; the bed frame assembly is composed of at least a first arc-shaped tube member, a second arc-shaped tube member, a third arc-shaped tube member and a fourth arc-shaped tube member, the first arc-shaped tube member, the second arc-shaped tube member, the third arc-shaped tube member and the fourth arc-shaped tube member. The fourth curved tube is connected end to end to form a circular ring. The front end of the first curved tube is welded to two handrail connecting tubes. The top of the handrail connecting tube is open. The bottoms of the first curved tube, the second curved tube, the third curved tube, and the fourth curved tube are also fixedly welded to the bed foot connecting tube. The top of the trampoline foot is movably connected to the bed foot connecting tube, and the handrail assembly is movably connected to the top of the handrail connecting tube. The handrail assembly includes at least one curved handrail rod and a handrail connecting rod fixedly connected to the bottom of the handrail rod. The handrail connecting rod is plugged into the handrail connecting tube through a handrail connector.

[0003] As mentioned above, most trampoline frames on the market are circular. Although this circular structure reduces the design difficulty and meets the requirements of rounded corners to prevent bumps in children's products, it has the problem of low space utilization when multiple circular trampolines are arranged side by side. Utility Model Content

[0004] The purpose of the utility model is to provide a trampoline frame, which can meet the requirements of anti-collision of rounded corners of children's products through the rounded corner structure design, and improve the space utilization rate when multiple trampolines are arranged in parallel through the square edge structure, thereby solving the problem of low space utilization rate when multiple circular trampolines are arranged in parallel in the prior art.

[0005] The technical solution of the utility model is as follows: a trampoline frame comprises a straight tube, an arc tube and supporting legs.

[0006] The arc tubes are arranged at the ends of the straight tubes, so that the four straight tubes and the four arc tubes are staggered to form an annular structure with four arc-shaped corners and four straight sides.

[0007] The supporting legs are installed in the middle of the arc tube.

[0008] The outer sides of both ends of the arc-shaped tube intersect with the outer sides of the two straight tube ends at points c and d respectively.

[0009] The points c and d intersect at point a along a direction perpendicular to the straight pipe.

[0010] The point c and the point d intersect at a point f along the extending direction of the straight tube.

[0011] The straight line connecting the points a and f forms a line segment af.

[0012] Draw a virtual circle with point a as the center and line segment ac as the radius. The virtual circle intersects line segment af at point b.

[0013] The outer side of the arc tube intersects with the line segment af at a point e, and the line segment ab<ae.

[0014] The arc line connecting the points c, e and d forms an arc segment ced, and the arc segment ced coincides with the outer side of the arc tube.

[0015] In a further embodiment, the arc segment ced is symmetrically arranged with the line segment ae as the center line, so that the arcs at both ends of the arc tube are equal, thereby meeting the requirement of anti-collision of rounded corners of children's products.

[0016] In a further embodiment, the length ratio of the line segment ae to the line segment ab is ≥17:16.

[0017] In a further embodiment, the length ratio of the line segment bf to the line segment ef is ≤2:1. By limiting the length ratio of point e to the two ends, the offset distance of point e to point f can be limited, thereby reducing the probability of the trampoline tipping over and ensuring that the arc segment ced is closer to a perfect circle, thereby meeting the requirements for anti-collision rounded corners of children's products.

[0018] In a further embodiment, the center point of the support leg coincides with line segment ae, so that line segment ae is the center line of the support leg, so that the support leg can provide the same support at both ends of the arc tube, further reducing the probability of rollover.

[0019] In a further embodiment, the trampoline bed further includes: a foot piece installed at the bottom end of the supporting leg.

[0020] The outer diameter of the bottom end of the anchor member is larger than the outer diameter of the supporting leg, and the point e is within the projection range of the bottom end of the anchor member.

[0021] In a further embodiment, the trampoline frame further includes: two sets of locking mechanisms, which are respectively installed in the middle of two oppositely arranged straight tubes.

[0022] When the two sets of locking mechanisms are in an unlocked state, the trampoline frame can be turned over around the locking mechanisms.

[0023] In a further embodiment, the locking mechanism includes: a lock seat, a rotating shaft and a first fastener.

[0024] The two lock seats are installed in the middle of the straight pipe, and the rotating shaft and the first fastener connect the two lock seats.

[0025] When the first fastener separates the two lock seats, the two lock seats can be flipped around the rotation axis. When the trampoline frame is not in use, the first fastener can be used to separate the two lock seats so that the trampoline frame can be flipped around the rotation axis.

[0026] In a further embodiment, the trampoline frame further includes: a connecting member, a vertical rod, and an armrest member.

[0027] The connecting piece is installed on the straight rod, the vertical rod is installed on the straight rod, and the handrail piece is installed on the vertical rod.

[0028] In a further embodiment, the trampoline frame further includes: a second fastener, and the vertical rod is mounted to the straight rod via the second fastener.

[0029] The beneficial effects of the present utility model are as follows: the present application can meet the requirements of preventing rounded corners of children's products from being bumped through the special rounded corner structure design, and improve the space utilization rate when multiple trampolines are arranged in parallel through the square edge structure, thereby solving the problem of low space utilization rate when multiple circular structure trampolines are arranged in parallel in the prior art.

[0030] Moreover, the line segment ab is less than ae, so that the arc segment ced is offset outward in the middle of the arc tube compared with the rounded corner design of the conventional perfect circle, so that the support leg installed in the middle of the arc tube is closer to the point f where the outer edges of the two adjacent straight tubes extend and intersect, so that the support leg can provide better support for the trampoline frame, reducing the probability of the trampoline tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a top view schematic diagram of the annular structure formed by the straight tube and the arc tube of the utility model.

[0032] Figure 2 It is an overall axonometric schematic diagram of the present invention.

[0033] The reference numerals shown in the figure are: straight tube 1, arc tube 2, locking mechanism 3, lock seat 31, rotating shaft 32, first fastener 33, supporting leg 4, anchor member 5, connecting member 6, clamping part 61, sleeve part 62, vertical rod 7, handrail member 8, second fastener 9. DETAILED DESCRIPTION

[0034] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with the present invention.

[0035] The present application discloses a trampoline frame. The special rounded corner structure design can not only meet the requirements of the rounded corners of children's products for preventing bumps, but also improve the space utilization rate when multiple trampolines are arranged in parallel through the square edge structure, thereby solving the problem of low space utilization rate when multiple circular trampolines are arranged in parallel in the prior art. In addition, the special rounded corner structure causes the middle part of the arc tube to be offset outward, so that the support legs installed in the middle part of the arc tube are closer to the point f where the outer edges of two adjacent straight tubes extend and intersect, so that the support legs can provide better support for the trampoline frame, thereby reducing the probability of the trampoline tipping over.

[0036] like Figure 2 The trampoline frame shown includes: a straight tube 1, a curved tube 2, a support leg 4, a locking mechanism 3, a ground anchor 5, a connecting member 6, a vertical rod 7, an armrest 8 and a second fastener 9.

[0037] The arc tube 2 is arranged at the end of the straight tube 1, so that the four straight tubes 1 and the four arc tubes 2 are staggered to form a ring structure with four arc-shaped corners and four straight sides. Elastic parts such as elastic fabrics are connected in the ring structure to form a complete trampoline, wherein the straight tube 1, arc tube 2, support leg 4, vertical rod 7 and handrail 8 can be a solid structure or a hollow structure. In a preferred embodiment, the straight tube 1, arc tube 2, support leg 4, vertical rod 7 and handrail 8 are hollow structures.

[0038] The support leg 4 is installed in the middle of the arc tube 2 . In this embodiment, an adapter is welded to the arc tube 2 , and the support leg 4 is screwed to the adapter to achieve the installation of the support leg 4 on the arc tube 2 .

[0039] like Figure 1 The outer sides of both ends of the arc-shaped tube 2 intersect with the outer sides of the ends of the two straight tubes 1 at points c and d respectively. The outer sides refer to the outer contour edges of the trampoline frame.

[0040] Point c and point d intersect at point a along a direction perpendicular to the straight pipe 1.

[0041] Point c and point d intersect at point f along the extending direction of the straight tube 1 .

[0042] The straight line connecting points a and f forms line segment af.

[0043] Draw a virtual circle with point a as the center and line segment ac as the radius. The virtual circle intersects with line segment af at point b, where the virtual circle is a perfect circle.

[0044] The outer side of the arc tube 2 intersects the line segment af at point e, and the line segment ab<ae.

[0045] The arc line connecting points c, e and d forms an arc segment ced, which coincides with the outer side of the arc tube 2.

[0046] Among them, points a, b, c, d and e are all points of the top view projection of the trampoline frame, and the arc segment ced is formed by offsetting point b of the arc segment cbd of the virtual circle to point f to point e, so that the arc segment ced is within the range of the outer contour of the trampoline frame, and the arc segment ced coincides with the outer edge of the arc tube 2 of the top view projection of the trampoline frame.

[0047] In this embodiment, the arc segments ced are symmetrically arranged with the line segment ae as the center line.

[0048] The length ratio of line segment ae to line segment ab is ≥17:16.

[0049] The length ratio of line segment bf to line segment ef is ≤2:1.

[0050] In a preferred embodiment, the length of each straight tube 1 is 421 mm, the straight tube 1 and the arc tube 2 are circular tubes with an outer diameter of 28 mm, line segment ac = line segment ab = line segment ad = 256 mm, line segment ae = 272 mm, that is, the total width of the trampoline frame is 933 mm.

[0051] Regarding the supporting leg 4, the center point of the supporting leg 4 coincides with the line segment ae.

[0052] The anchor member 5 is mounted on the bottom end of the supporting leg 4 .

[0053] The outer diameter of the bottom end of the anchor member 5 is larger than the outer diameter of the supporting leg 4 , and point e is within the projection range of the bottom end of the anchor member 5 .

[0054] Point e is within the top view projection range of the bottom end of the anchor member 5. In the preferred embodiment, the center point of the top view projection of the supporting leg 4 coincides with the line segment ae, and the center point of the top view projection of the anchor member 5 coincides with the line segment ae, further reducing the probability of rollover.

[0055] In this embodiment, the anchor member 5 is a rubber member or a plastic member, and the anchor member 5 is sleeved and installed on the bottom end of the support leg 4. In other embodiments, the anchor member 5 and the support leg 4 can also be welded or screwed or have an integrated structure.

[0056] Regarding the locking mechanism 3, Figure 1 and 2 The trampoline frame shown further comprises: two sets of locking mechanisms 3 , which are respectively installed at the middle of two oppositely arranged straight tubes 1 .

[0057] When the two sets of locking mechanisms 3 are in the unlocked state, the trampoline frame can be turned over around the locking mechanisms 3 .

[0058] The locking mechanism 3 includes a locking seat 31 , a rotating shaft 32 and a first fastening member 33 .

[0059] Two lock seats 31 are installed in the middle of the straight pipe 1 , and a rotating shaft 32 and a first fastener 33 connect the two lock seats 31 .

[0060] When the first fastener 33 separates the two lock seats 31 , the two lock seats 31 can flip around the rotation axis 32 .

[0061] like Figure 2 The rotating shaft 32 is arranged above the first fastener 33 . When the first fastener 33 separates the two locking seats 31 , the trampoline frame can flip around the rotating shaft 32 upward away from the supporting legs 4 .

[0062] The straight pipe 1 on which the locking mechanism 3 is installed consists of two branch pipes and the locking mechanism 3. When the central axes of the two branch pipes are arranged collinearly and the locking mechanism 3 is in a locked state, the two branch pipes and the locking mechanism 3 form a straight pipe 1. The rotating shaft 32 and the first fastener 33 can be a combination of a pin or a screw and a nut.

[0063] Regarding the armrest 8, the connecting part 6 is installed on the straight rod, the vertical rod 7 is installed on the straight rod, and the armrest 8 is installed above the vertical rod 7. With the assistance of the armrest 8, users can use it in more ways, and can also install electronic devices such as mobile phones on the armrest 8 for auxiliary entertainment.

[0064] The vertical rod 7 is mounted on the straight rod through a second fastener 9 .

[0065] like Figure 2 The connection point shown is provided with a clamping portion 61 and a sleeve portion 62. The clamping portion 61 is clamped on the straight pipe 1 so that the connector 6 can be detachably installed on the straight rod. It can also be connected to the straight pipe 1 by passing a screw through the clamping portion 61, thereby increasing the connection strength between the connector 6 and the straight pipe 1.

[0066] The second fastener 9 is a hand screw. The vertical rod 7 is inserted into the sleeve portion 62. The hand screw can be inserted into the sleeve portion 62, or inserted into the sleeve portion 62 and the vertical rod 7 so that the hand screw is threadedly connected to the sleeve portion 62 or the vertical rod 7.

[0067] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A trampoline bed frame, characterized in that: include: straight tubes, curved tubes and support legs; The arc tubes are arranged at the ends of the straight tubes, so that the four straight tubes and the four arc tubes are staggered to form a ring structure with four arc-shaped corners and four straight sides; The support legs are installed in the middle of the arc tube; The outer sides of both ends of the arc tube intersect with the outer sides of the two straight tube ends at points c and d respectively; The points c and d intersect at point a along a direction perpendicular to the straight tube; The points c and d intersect at point f along the direction in which the straight tube extends; The straight line connecting point a and point f forms a line segment af; Draw a virtual circle with point a as the center and line segment ac as the radius. The virtual circle intersects line segment af at point b. The outer side of the arc tube intersects the line segment af at point e, and the line segment ab<ae; The arc line connecting the points c, e and d forms an arc segment ced, and the arc segment ced coincides with the outer side of the arc tube.

2. A trampoline bed frame according to claim 1, characterized in that: The arc segment ced is symmetrically arranged with the line segment ae as the center line.

3. A trampoline bed frame according to claim 1, characterized in that: The length ratio of the line segment ae to the line segment ab is ≥17:

16.

4. A trampoline bed frame according to claim 3, characterized in that: The length ratio of the line segment bf to the line segment ef is ≤2:

1.

5. The trampoline frame according to claim 1, characterized in that: The center point of the supporting leg coincides with line segment ae.

6. The trampoline frame according to claim 1, characterized in that: Also includes: Anchors, which are installed at the bottom ends of the supporting legs; The outer diameter of the bottom end of the anchor member is larger than the outer diameter of the supporting leg, and the point e is within the projection range of the bottom end of the anchor member.

7. The trampoline frame according to claim 1, characterized in that: Also includes: Two sets of locking mechanisms, the two sets of locking mechanisms are respectively installed in the middle of two oppositely arranged straight pipes; When the two sets of locking mechanisms are in an unlocked state, the trampoline frame can be turned over around the locking mechanisms.

8. A trampoline bed frame according to claim 7, characterized in that: The locking mechanism includes: a lock seat, a rotating shaft and a first fastener; The two lock seats are installed in the middle of the straight pipe, and the rotating shaft and the first fastener connect the two lock seats; When the first fastener separates the two lock seats, the two lock seats can be flipped around the rotation axis.

9. The trampoline frame according to claim 1, characterized in that: Also includes: Connecting pieces, vertical bars and handrails; The connecting piece is installed on the straight rod, the vertical rod is installed on the straight rod, and the handrail piece is installed on the vertical rod.

10. A trampoline bed frame according to claim 9, characterized in that: Also includes: A second fastener is used to mount the vertical rod on the straight rod.

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