Trampoline using elastic plate
By incorporating elastic plates and homogeneous elastic supports into the trampoline, the problems of instability and noise/vibration are solved, providing a stable and low-noise exercise and fitness device suitable for middle-aged and elderly people and athletes.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LIU DAZHONG
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-18
AI Technical Summary
Existing trampolines are not easy to stand on, take up a lot of space, and have complex support structures, vibration and noise problems during vigorous exercise.
The design employs a spring plate and a homogeneous elastic support. The homogeneous elastic support is fixed on both sides of the spring plate, and the central rotating part is designed with a narrow cross section. The support restricts the displacement of the middle part of the spring plate through elastic potential energy, thereby reducing noise and vibration.
It achieves stability of the elastic plate and horizontal stability in the middle, avoiding loud noise and vibration during strenuous exercise, making it suitable for sports and fitness for all kinds of people, and reducing manufacturing costs.
Smart Images
Figure CN2025110868_18062026_PF_FP_ABST
Abstract
Description
Trampoline with elastic plate TECHNICAL FIELD
[0001] The present application relates to the technical field of trampolines, in particular to a trampoline with an elastic plate. BACKGROUND
[0002] As a sports and entertainment equipment, the trampoline is not easy to stand, not suitable for the elderly, and occupies a large space.
[0003] US4199136A discloses a semi-rigid thin plate that can be elastically bent as an elastic element, but the support problem of the plate end corner and the plate end distance narrowing caused by the bending of the thin plate is not completely solved, which limits the lifting range of the thin plate and generates friction noise.
[0004] CN202311321877.6 discloses a trampoline including an elastic plate and a follow-up support body, but the structure design of the support body still has deficiencies, and the main embodiment cannot avoid complex structure and the support body will be lifted off the ground with the elastic plate during intense exercise, which will generate vibration and noise when landing.
[0005] Therefore, there is an urgent need in the art for a new trampoline with an elastic plate to solve the above problems. SUMMARY
[0006] The purpose of the present application is to provide a trampoline with an elastic plate to solve the problems existing in the prior art, which can maintain the stability of the homogeneous elastic support body itself and the stability of the middle part of the elastic plate in the horizontal direction, and can avoid generating large noise when the user does the up-and-down movement.
[0007] To achieve the above purpose, the present application provides the following scheme:
[0008] The present application discloses a trampoline with an elastic plate, which comprises an elastic plate, a plurality of homogeneous elastic support bodies are fixed on the lower ends of the opposite sides of the elastic plate, a center rotating part is arranged on the homogeneous elastic support body, when the elastic plate is subjected to pressure, the part above the center rotating part rotates about the center rotating part, the width of the center rotating part is smaller than the width of the lower end of the homogeneous elastic support body, and the width of the center rotating part is smaller than or equal to the width of the upper end of the homogeneous elastic support body.
[0009] Preferably, the distance from the center rotating part to the bottom end of the homogeneous elastic support body is 1 / 2-4 / 5 of the height of the homogeneous elastic support body.
[0010] Preferably, the elastic plate is an equal-thickness plate or a non-equal-thickness plate, the equal-thickness plate is a flat plate or an arc-shaped plate, and the middle thickness of the non-equal-thickness plate is greater than the thickness of the two ends.
[0011] The shape of the elastic plate is rectangular or trapezoidal.
[0012] Preferably, the bottoms of the homogeneous elastic supports on both sides of the elastic plate are connected by connecting plates, connecting ropes or connecting belts.
[0013] Preferably, the homogeneous elastic supports are provided with cavity structures.
[0014] Preferably, the material of the elastic plate is metal, non-metal or composite material.
[0015] The material of the homogeneous elastic support is rubber.
[0016] Preferably, the homogeneous elastic support is an I-shaped support.
[0017] Preferably, the homogeneous elastic support is a double-arc support.
[0018] Preferably, the homogeneous elastic support is a K-shaped support.
[0019] Preferably, the homogeneous elastic support is a conical support.
[0020] The present application has the following technical effects relative to the prior art:
[0021] The present application provides a trampoline using an elastic plate, specifically including an elastic plate and homogeneous elastic supports installed on both sides of the elastic plate, which improves the elastic performance of the trampoline by supporting the elastic plate from both sides.
[0022] Further, in the process of deformation and resetting of the elastic plate, the homogeneous elastic supports apply resetting force to the first end and the second end of the elastic plate by using the stable support of the lower part and the overall elastic potential energy, so as to limit the horizontal displacement of the middle part of the elastic plate.
[0023] Further, the homogeneous elastic supports in the present application are made of homogeneous elastic material (such as rubber), and the structure of the homogeneous elastic supports is simple, which is beneficial to mass production and significantly reduces the manufacturing cost. The elastic properties of the material can be adjusted according to the design requirements, and the device can also reduce the noise and vibration when it is lifted and falls to the ground, especially during intense exercise.
[0024] Furthermore, it can be emphasized that the excellent undulating dynamics of the elastic board trampoline are mainly determined by the excellent bending mechanical properties of the elastic board. The main energy storage and release sources of the elastic board trampoline are the bending and restoring of the elastic board. In this regard, the narrow width of the central rotating part on the homogeneous elastic support can maintain the excellent characteristics of the elastic board trampoline. The use of a larger cross-section design below the small cross-section of the central rotating part in the homogeneous elastic support is beneficial to the adaptation of the homogeneous elastic support to the board end angle, and can also reduce the problem of the bottom surface of the homogeneous elastic support becoming unstable and flipping up due to bending moment and having a tendency to move horizontally.
[0025] Furthermore, this invention greatly simplifies the structure of the trampoline, providing a suitable sports and fitness device with excellent elasticity for various groups, including the middle-aged and elderly, and can also assist athletes in training. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 is a schematic diagram of the trampoline using an elastic board in Embodiment 1;
[0028] Figure 2 is a schematic diagram of the trampoline using an elastic plate in Embodiment 1 under pressure;
[0029] Figure 3 is a front view of the trampoline using the elastic board in Embodiment 1 under pressure;
[0030] Figure 4 is a schematic diagram of the I-shaped support in the trampoline using the elastic board in Example 1 when it is not under pressure;
[0031] Figure 5 is a schematic diagram of the I-shaped support in the trampoline using the elastic plate in Embodiment 1 when it is under pressure;
[0032] Figure 6 is a front view of the trampoline using the elastic plate in Example 2 under pressure;
[0033] Figure 7 is a schematic diagram of the double-arc support body in the trampoline using the elastic board in Example 2 when it is not under pressure;
[0034] Figure 8 is a schematic diagram of the double-arc support body under pressure in the trampoline using the elastic plate in Example 2;
[0035] Figure 9 is a front view of the trampoline using the elastic plate in Example 3 under pressure;
[0036] Figure 10 is a schematic diagram of the K-shaped support in the trampoline using the elastic board in Example 3 when it is not under pressure;
[0037] Figure 11 is a schematic diagram of the K-shaped support body in the trampoline of Example Three with a spring plate under pressure;
[0038] Figure 12 is a schematic diagram of the trampoline of Example Three with a spring plate with a connecting band;
[0039] Figure 13 is a front view of the trampoline of Example Four with a spring plate under no pressure;
[0040] Figure 14 is a front view of the trampoline of Example Four with a spring plate under pressure;
[0041] Figure 15 is a schematic diagram of the conical support body in the trampoline of Example Four with a spring plate under no pressure;
[0042] Figure 16 is a schematic diagram of the conical support body in the trampoline of Example Four with a spring plate under pressure;
[0043] Figure 17 is a side view of a non-equal-thickness plate;
[0044] In the figures: 1 - spring plate; 2 - I-shaped support body; 3 - double-arc support body; 4 - K-shaped support body; 5 - conical support body; 6 - connecting band. DETAILED DESCRIPTION
[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0046] The purpose of the present application is to provide a trampoline with a spring plate to solve the problems in the prior art, to keep the uniform elastic support body stable and keep the middle part of the spring plate stable in the horizontal direction, and to avoid large noise when the user does the up-and-down movement.
[0047] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0048] Example One
[0049] As shown in FIG. 1-5, the present embodiment provides a trampoline with elastic plates, including elastic plates 1, which are themselves energy storage bodies that are elastically bendable and deformable. The lower ends of the opposite sides of the elastic plates 1 are each fixed with a plurality of homogeneous elastic supports, i.e. the lower surfaces of the first and second ends of the elastic plates are each provided with a plurality of homogeneous elastic supports. It should be noted that the homogeneous elastic supports are provided with a central rotating portion, which is a certain section of the homogeneous elastic support and is not necessarily the central position of the homogeneous elastic support. When the elastic plates 1 are subjected to pressure, the portion above the central rotating portion makes a rotary motion about the central rotating portion, and the portion below the central rotating portion does not move. The width of the central rotating portion is smaller than the width of the lower end of the homogeneous elastic support, and the width of the central rotating portion is smaller than or equal to the width of the upper end of the homogeneous elastic support.
[0050] In the process of bending and deforming of the elastic plates 1 under pressure, the first and second ends of the elastic plates 1 produce symmetrical changes in the angle, and the corresponding homogeneous elastic supports at the ends of the elastic plates 1 produce corresponding compression and inward bending elastic deformation under the pressure of the end of the elastic plates 1 and the change in the angle. In the process of deformation of the elastic plates 1, the homogeneous elastic supports on both sides provide a certain restoring force to the first and second ends of the elastic plates 1 using elastic potential energy, thereby limiting the displacement of the middle part of the elastic plates 1 in the horizontal direction in the process of bending and restoring deformation of the elastic plates 1. When the middle part of the elastic plates 1 is subjected to bending force, the homogeneous elastic supports at the first and second ends of the elastic plates 1 are elastically deformed, and the portion above the central rotating portion of the homogeneous elastic support not only changes with the change in the angle of the end of the elastic plates 1, but also overcomes the tendency of the bottom of the homogeneous elastic support to move and rub.
[0051] In the present embodiment, the specific position of the central rotating portion needs to be designed according to the size and shape of the homogeneous elastic support, and the general value range is: the distance from the central rotating portion to the bottom end of the homogeneous elastic support is 1 / 2-4 / 5 of the height of the homogeneous elastic support.
[0052] The central rotating portion of the homogeneous elastic support is designed with a relatively small cross section within a certain range, and a larger cross section is designed below the smaller cross section of the central rotating portion, which can be beneficial to the adaptation (follow-up) of the homogeneous elastic support to the angle of the end of the elastic plates 1 and reduce the tendency of the bottom surface of the homogeneous elastic support to move or move horizontally. Or, for the central rotating portion with a smaller cross section, a smaller bending moment is needed to achieve the same angle, and the bending moment on the whole homogeneous elastic support will be smaller, and the tendency of the bottom surface of the homogeneous elastic support to move will be smaller. The lower part of the homogeneous elastic support, especially the part in contact with the ground, has a larger cross section, which can maintain the stability of the lower part of the homogeneous elastic support against bending force and provide stability in the horizontal direction of the elastic plates 1 and smoothness of the elastic deformation of the elastic plates 1.
[0053] In the embodiment, the elastic plate 1 is an equal-thickness plate or a non-equal-thickness plate. The equal-thickness plate is a flat plate or an arc-shaped plate, that is, it is linear or arc-shaped when viewed from the side. The design of the arc-shaped side of the elastic plate 1 is advantageous to reduce the design height of the homogeneous elastic support. For the non-equal-thickness plate, the side view is shown in FIG. 17. The middle thickness of the non-equal-thickness plate is greater than the thickness at both ends, which can make the deformation of the elastic plate 1 under stress more uniform. Further, the upper and lower edges of the non-equal-thickness plate in FIG. 17 are arc-shaped. In the actual manufacturing process, one edge can be arc-shaped and the other edge can be flat. Further, the non-equal-thickness plate can be designed as an arc-shaped non-equal-thickness plate structure as a whole.
[0054] When viewed from the top of the elastic plate 1, the shape of the elastic plate 1 is generally rectangular, or trapezoidal with parallel sides. The lower side of the two parallel ends is used to fix the homogeneous elastic support.
[0055] In the embodiment, the lower surface of each of the two sides (or the first end and the second end) of the elastic plate 1 is provided with a plurality of homogeneous elastic supports, as shown in FIG. 1 or FIG. 2. Each side is provided with two homogeneous elastic supports, and the number and position of the homogeneous elastic supports on the two sides correspond to each other. Of course, one, three or more homogeneous elastic supports can be provided on each side, which can be adjusted according to actual needs by those skilled in the art.
[0056] In order to avoid the relative displacement of the corresponding homogeneous elastic supports on both sides of the elastic plate 1 due to excessive bending deformation of the elastic plate 1, the bottoms of the homogeneous elastic supports on both sides of the elastic plate 1 are connected by a connecting plate, a connecting rope or a connecting belt 6. It should be noted that the corresponding homogeneous elastic supports on both sides generally move to both sides when they displace. Therefore, the flexible connecting rope can also limit the displacement. In addition, the connecting rope or the connecting plate can also achieve the technical effect of avoiding wear and tear of the bottom surface of the homogeneous elastic support due to friction with the ground. The specific shape of the connecting belt 6 is not shown in the embodiment and can be referred to FIG. 12 in Embodiment Three.
[0057] In the embodiment, a cavity structure is provided in the homogeneous elastic support without affecting the main mechanical properties. The cavity structure can not only reduce the overall weight, but also reduce the manufacturing cost. Of course, the cavity structure is generally provided at a position with a large size, generally below the central rotating part. If there is enough space above the central rotating part, the cavity structure can also be provided.
[0058] In the embodiment, the material of the elastic plate 1 is metal, non-metal or composite material. The metal material includes but is not limited to existing aviation aluminum. The non-metal material includes but is not limited to existing wood, specifically plywood, which is a multi-layered compressed elastic sheet. The skilled person in the art can also replace it with other multi-layered compressed elastic sheets made of other materials. The composite material can be existing glass fiber, carbon fiber and synthetic resin composite materials.
[0059] The material of the homogeneous elastic support is a high-molecular elastic material, including but not limited to existing rubber. The homogeneous elastic support has a simple structure and can avoid possible noise during use, especially the noise and vibration when the device is lifted and landed after a strenuous movement.
[0060] In the embodiment, a plurality of nuts are embedded in the upper end of each homogeneous elastic support. The homogeneous elastic support can be fixed to the elastic plate 1 through the nuts on its upper surface and bolts. The purpose of setting multiple nuts is to adjust the span between the corresponding homogeneous elastic supports on both sides by connecting different nuts. Alternatively, a plurality of bolt holes with different spans can be provided at the two ends of the elastic plate 1, so that the nuts on the upper end of the homogeneous elastic support are connected with different bolt holes, which can also achieve the span between the homogeneous elastic supports on both sides.
[0061] In the embodiment, the lower surface of each homogeneous elastic support is provided with a plurality of vacuum suction cups, specifically two or more. The purpose of setting the vacuum suction cups is that when the homogeneous elastic support is installed on a smooth ground, the homogeneous elastic support can be fixed to the smooth ground through the vacuum suction cups, thereby further enhancing the stability of the homogeneous elastic support.
[0062] In the embodiment, the homogeneous elastic support is an I-shaped support 2. The specific structure of the I-shaped support 2 is shown in FIGS. 3-5. The I-shaped support 2 is divided into four parts from top to bottom, which are I-shaped first part, I-shaped second part, I-shaped third part and I-shaped fourth part. The cross-sectional area of the I-shaped first part is larger than that of the I-shaped second part, and the cross-sectional areas of the I-shaped second part, the I-shaped third part and the I-shaped fourth part gradually increase. The I-shaped first part has a larger cross-sectional area to increase its contact area with the elastic plate 1, so that they can be fixed more firmly. The I-shaped fourth part has a larger cross-sectional area to increase the contact area with the ground, thereby increasing the friction and making the homogeneous elastic support more stable. The I-shaped second part has the smallest cross-sectional area, so it is the center rotating part of the homogeneous elastic support. When the elastic plate 1 is stressed, the I-shaped second part and the I-shaped first part above it can rotate.
[0063] Embodiment Two
[0064] As shown in FIGS. 6-8, the present embodiment provides a trampoline with a resilient plate. The technical features disclosed in the present embodiment are basically the same as those disclosed in Embodiment One, except that the shape of the homogeneous elastic support body is different, as follows:
[0065] In the present embodiment, the homogeneous elastic support body is a double-arc support body 3. The specific shape of the double-arc support body 3 is shown in FIGS. 6-8, which includes a double-arc portion and a double-arc base. The vertical cross-sectional shape of the double-arc portion is a double-arc shape, and the narrowest part of the double-arc portion, i.e., the central rotating portion, will rotate when the center of the resilient plate 1 is pressed. The double-arc base is a columnar structure.
[0066] Embodiment Three
[0067] As shown in FIGS. 9-12, the present embodiment provides a trampoline with a resilient plate. The technical features disclosed in the present embodiment are basically the same as those disclosed in Embodiment One, except that the shape of the homogeneous elastic support body is different, as follows:
[0068] In the present embodiment, the homogeneous elastic support body is a K-shaped support body 4. The specific shape of the K-shaped support body 4 is shown in FIGS. 9-12, which includes a K-shaped upper inclined block and a K-shaped lower inclined block arranged integrally. The cross-sectional area of the K-shaped upper inclined block gradually decreases from top to bottom, and the cross-sectional area of the K-shaped lower inclined block gradually increases from top to bottom. The lower end of the K-shaped upper inclined block is connected to the upper end of the K-shaped lower inclined block. The connection between the K-shaped upper inclined block and the K-shaped lower inclined block is a central rotating portion, which will rotate when the center of the resilient plate 1 is pressed.
[0069] Embodiment Four
[0070] As shown in FIGS. 13-16, the present embodiment provides a trampoline with a resilient plate. The technical features disclosed in the present embodiment are basically thesame as those disclosed in Embodiment One, except that the shape of the homogeneous elastic support bodyis different, as follows:
[0071] In this embodiment, the homogeneous elastic support is a conical support 5. The specific shape of the conical support 5 is shown in Figs. 13-16, which includes an upper end columnar body and a lower end conical body formed integrally, and the lower end of the upper end columnar body is connected to the upper end of the lower end conical body, and the cross-sectional area of the upper end columnar body is the same as the cross-sectional area of the upper surface of the lower end conical body. That is, the connection between the upper end columnar body and the lower end conical body is a central rotating part, and when the center of the elastic plate 1 is pressed, the connection between the upper end columnar body and the lower end conical body and the upper end columnar body will rotate accordingly.
[0072] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above embodiment is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In summary, the content of the present application should not be understood as a limitation of the present application.
Claims
1. A trampoline employing an elastic plate, comprising an elastic plate, wherein a plurality of homogeneous elastic supports are fixed to the lower ends of opposite sides of the elastic plate, characterized in that: The homogeneous elastic support is provided with a central rotating part. When the elastic plate is subjected to pressure, the part above the central rotating part rotates about the central rotating part. The width of the central rotating part is less than the width of the lower end of the homogeneous elastic support, and the width of the central rotating part is less than or equal to the width of the upper end of the homogeneous elastic support.
2. The trampoline using an elastic plate according to claim 1, characterized in that: The distance from the central rotating part to the bottom end of the homogeneous elastic support is 1 / 2 to 4 / 5 of the height of the homogeneous elastic support.
3. The trampoline using an elastic plate according to claim 1, characterized in that: The elastic plate is a plate of equal thickness or a plate of non-equal thickness; the plate of equal thickness is a flat plate or an arc-shaped plate; the thickness of the middle part of the plate of non-equal thickness is greater than the thickness of the two ends. The elastic plate is rectangular or trapezoidal in shape.
4. The trampoline using an elastic plate according to claim 1, characterized in that: The bottoms of the homogeneous elastic supports located on both sides of the elastic plate are connected by connecting plates, connecting ropes, or connecting straps.
5. The trampoline using an elastic plate according to claim 1, characterized in that: The homogeneous elastic support body has a cavity structure.
6. The trampoline using an elastic plate according to claim 1, characterized in that: The elastic plate is made of metal, non-metal, or composite material; The material of the homogeneous elastic support is rubber.
7. The trampoline using an elastic plate according to claim 1, characterized in that: The homogeneous elastic support is an I-shaped support.
8. The trampoline using an elastic plate according to claim 1, characterized in that: The homogeneous elastic support is a double-arc support.
9. The trampoline using an elastic plate according to claim 1, characterized in that: The homogeneous elastic support is a K-shaped support.
10. The trampoline using an elastic plate according to claim 1, characterized in that: The homogeneous elastic support is a conical support.