Trampoline adopting elastic plate

Abstract

The invention discloses a trampoline adopting an elastic plate, and relates to the technical field of trampoline, the trampoline comprises the elastic plate, the lower ends of the two opposite sides of the elastic plate are both fixedly provided with a plurality of homogeneous elastic supporting bodies, the homogeneous elastic supporting bodies are provided with center rotating parts, and when the elastic plate is pressed, the center rotating parts rotate around the elastic plate. The upper part of the central rotating part rotates relative to the central rotating part, the width of the central rotating part is smaller than that of the lower end of the homogeneous elastic supporting body, and the width of the central rotating part is smaller than or equal to that of the upper end of the homogeneous elastic supporting body. According to the invention, the stability of the homogeneous elastic support body and the stability of the middle part of the elastic plate in the horizontal direction can be kept, when a user does fluctuating motion, large noise can be avoided, and the whole structure is simple and the design is reasonable.

Description

Technical Field

[0001] The invention relates to the technical field of trampolines, in particular to a trampoline using an elastic plate. Background Art

[0002] As a kind of sports and entertainment equipment, trampoline is not easy to stand steadily, is not suitable for middle-aged and elderly people, and takes up a large space.

[0003] The US patent with publication number US4199136A adopts an elastically bendable semi-rigid thin plate as an elastic element, but because it does not completely solve the support problems of the plate end corners and the shortened distance between the plate ends caused by the bending of the thin plate, it will limit the rise and fall range of the thin plate and generate friction noise.

[0004] The Chinese patent with application number 202311321877.6 proposes a trampoline including an elastic plate and a follow-up support body, but there are still deficiencies in the structural design of the support body. The main implementation scheme fails to avoid structural complexity. During strenuous exercise, the support body will leave the ground with the elastic plate, and will generate vibration and noise when it lands.

[0005] Therefore, there is an urgent need in the art for a novel trampoline using elastic plates to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a trampoline using an elastic plate to solve the problems existing in the above-mentioned prior art, which can maintain the stability of the uniform elastic support body itself and the stability of the middle part of the elastic plate in the horizontal direction, and can avoid loud noise when the user does ups and downs exercise.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention discloses a trampoline using an elastic plate, comprising an elastic plate, wherein a plurality of uniform elastic supporting bodies are fixed to the lower ends of the opposite sides of the elastic plate, and a central rotating part is provided on the uniform elastic supporting body. When the elastic plate is subjected to pressure, the part above the central rotating part performs a rotational motion about the central rotating part, and the width of the central rotating part is smaller than the width of the lower end of the uniform elastic supporting body, and the width of the central rotating part is smaller than or equal to the width of the upper end of the uniform elastic supporting body.

[0009] Preferably, the distance from the central rotating part to the bottom end of the homogeneous elastic supporting body is 1 / 2-4 / 5 of the height of the homogeneous elastic supporting body.

[0010] Preferably, the elastic plate is a plate of equal thickness or a plate of unequal thickness; the plate of equal thickness is a flat plate or an arc-shaped plate; the middle thickness of the plate of unequal thickness is greater than the thickness at both ends;

[0011] The elastic plate is in a rectangular or trapezoidal shape.

[0012] Preferably, the bottoms of the homogeneous elastic support bodies located on both sides of the elastic plate are connected by connecting plates, connecting ropes or connecting belts.

[0013] Preferably, a cavity structure is provided in the homogeneous elastic supporting body.

[0014] Preferably, the elastic plate is made of metal, non-metal or composite material;

[0015] The material of the homogeneous elastic support body is rubber.

[0016] Preferably, the homogeneous elastic support body is an I-shaped support body.

[0017] Preferably, the homogeneous elastic support body is a double-arc support body.

[0018] Preferably, the homogeneous elastic support body is a K-shaped support body.

[0019] Preferably, the homogeneous elastic support body is a conical support body.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The present invention provides a trampoline using an elastic plate, which specifically comprises an elastic plate and uniform elastic supporting bodies installed on both sides of the elastic plate, and improves the elastic performance of the trampoline by supporting the elastic plate on both sides.

[0022] Furthermore, during the deformation and resetting of the elastic plate, the homogeneous elastic support body utilizes the stable support of its lower part and the overall elastic potential energy to apply a resetting force to the first end and the second end of the elastic plate, thereby limiting the horizontal displacement of the middle part of the elastic plate.

[0023] Furthermore, the homogeneous elastic support body in the present invention adopts a homogeneous elastic material (such as rubber). The homogeneous elastic support body has a simple structure, is conducive to mass production, and significantly reduces the production cost. The elastic properties of the material can be adjusted as needed to meet the design requirements, and can also reduce shock, thereby avoiding possible noise during use, especially the noise and vibration caused by the device rising and falling to the ground during strenuous exercise.

[0024] Furthermore, it can be emphasized that the excellent undulating dynamics of the elastic plate trampoline is mainly determined by the excellent bending mechanical properties of the elastic plate. The main source of energy storage and release of the elastic plate is the bending and resetting of the elastic plate. In this regard, a narrow width of the central rotating part on the uniform elastic support body can maintain the excellent characteristics of the elastic plate trampoline, and a larger cross-section design is adopted under the smaller cross-section of the central rotating part in the uniform elastic support body. This is beneficial for the uniform elastic support body to adapt to the plate end angle of the elastic plate, and can reduce the problem of the bottom surface of the uniform elastic support body flipping up due to instability caused by the bending moment and the tendency to move horizontally.

[0025] Furthermore, the present invention greatly simplifies the structure of the trampoline, provides a suitable sports and fitness device with excellent elastic properties for various groups of people including the elderly, and can also assist athletes in training. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic structural diagram of a trampoline using an elastic plate in Embodiment 1;

[0028] Figure 2 This is a schematic diagram of the structure of a trampoline using an elastic plate under pressure in Example 1;

[0029] Figure 3 It is a front view of the trampoline using the elastic plate of the first embodiment when it is under pressure;

[0030] Figure 4 This is a schematic diagram of an I-shaped support body of a trampoline using an elastic plate in Example 1 when it is not under pressure;

[0031] Figure 5 This is a schematic diagram of an I-shaped support body of a trampoline using an elastic plate in Example 1 when it is under pressure;

[0032] Figure 6 It is a front view of the trampoline using the elastic plate of the second embodiment when it is under pressure;

[0033] Figure 7 This is a schematic diagram of a double arc support body in a trampoline using an elastic plate in Example 2 when it is not under pressure;

[0034] Figure 8 This is a schematic diagram of a double arc support body in a trampoline using an elastic plate in Example 2 when under pressure;

[0035] Fig. 9It is a front view of the trampoline using the elastic plate of the third embodiment when it is under pressure;

[0036] Fig.10 This is a schematic diagram of a K-shaped support body of a trampoline using an elastic plate in Example 3 when it is not under pressure;

[0037] Fig.11 This is a schematic diagram of a K-shaped support body of a trampoline using an elastic plate in Example 3 when under pressure;

[0038] Fig.12 A schematic diagram of a trampoline with elastic plates and a connecting belt in Embodiment 3;

[0039] Fig.13 It is a front view of the trampoline using the elastic plate in the fourth embodiment when it is not under pressure;

[0040] Fig.14 It is a front view of the trampoline using the elastic plate of the fourth embodiment when it is under pressure;

[0041] Fig.15 This is a schematic diagram of a fourth embodiment of a trampoline using elastic plates when the conical support body is not under pressure;

[0042] Fig.16 This is a schematic diagram of a conical support body in a trampoline using an elastic plate in the fourth embodiment when it is under pressure;

[0043] Fig.17 It is the side view of the plate with non-uniform thickness;

[0044] In the figure: 1-elastic plate; 2-I-shaped support body; 3-double arc support body; 4-K-shaped support body; 5-conical support body; 6-connecting belt. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The purpose of the present invention is to provide a trampoline using an elastic plate to solve the problems existing in the above-mentioned prior art, which can maintain the stability of the uniform elastic support body itself and the stability of the middle part of the elastic plate in the horizontal direction, and can avoid loud noise when the user does ups and downs exercise.

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Embodiment 1

[0049] like Figure 1-Figure 5 As shown, this embodiment provides a trampoline using an elastic plate, including an elastic plate 1, which itself is an elastic, bendable and deformable energy storage body. Several homogeneous elastic support bodies are fixed to the lower ends of the opposite sides of the elastic plate 1, that is, several homogeneous elastic support bodies are provided on the lower surfaces of the first end and the second end of the elastic plate. It should be noted that a central rotating part is provided on the homogeneous elastic support body, and the central rotating part is a certain section of the structure on the homogeneous elastic support body, and is not necessarily the center position of the homogeneous elastic support body. When the elastic plate 1 is subjected to pressure, the part above the central rotating part rotates about the central rotating part, and the part below the central rotating part does not move. The width of the central rotating part should be smaller than the width of the lower end of the homogeneous elastic support body, and the width of the central rotating part should be less than or equal to the width of the upper end of the homogeneous elastic support body.

[0050] During the process of bending deformation caused by pressure on the elastic plate 1, the first end and the second end of the elastic plate 1 produce symmetrical angular changes, and the corresponding homogeneous elastic support bodies at the two ends produce corresponding compression and inward bending elastic deformation under the pressure of the end of the elastic plate 1 and the driving of the angle. During the deformation of the elastic plate 1, the homogeneous elastic support bodies on both sides use elastic potential energy to provide a certain reset force to the first end and the second end of the elastic plate 1 respectively, thereby limiting the horizontal displacement of the middle part of the elastic plate 1 during the bending deformation and recovery of the elastic plate 1. Since the homogeneous elastic support bodies located at the first end and the second end of the elastic plate 1 undergo elastic deformation when the middle part of the elastic plate 1 is bent by force, the upper part of the central rotating part of the homogeneous elastic support body must not only change with the angular change of the plate end of the elastic plate 1, but also overcome the tendency of the bottom of the homogeneous elastic support body to move and rub due to the bending force.

[0051] In this embodiment, the specific position of the central rotating part needs to be designed accordingly according to the size and shape of the homogeneous elastic support body. The general value range is: the distance from the central 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.

[0052] The central rotating part of the homogeneous elastic support body adopts a relatively small cross-section design within a certain range, while a larger cross-section design is adopted below the smaller cross-section of the central rotating part, which can help the homogeneous elastic support body adapt to (follow-up) the turning angle of the plate end of the elastic plate 1 and reduce the tendency of the bottom surface of the homogeneous elastic support body to partially leave or move horizontally. In other words, for the central rotating part with a smaller cross-section, only a smaller bending moment is required to achieve the same turning angle, so the bending moment of the homogeneous elastic support body as a whole will be smaller, and the tendency of the bottom surface of the homogeneous elastic support body to move will become smaller. The lower part of the homogeneous elastic support body, especially the part that contacts the ground, has a larger cross-section, which can not only maintain the stability of the lower part of the homogeneous elastic support body in resisting bending force, but also provide the stability of the elastic plate 1 in the horizontal direction and the smoothness of the elastic deformation of the elastic plate 1.

[0053] In this embodiment, the elastic plate 1 is a plate of uniform thickness or a plate of non-uniform thickness. The plate of uniform thickness is a flat plate or an arc-shaped plate, that is, it is a straight line or an arc-shaped plate when viewed from the side. The arc-shaped side of the elastic plate 1 is conducive to reducing the design height of the uniform elastic support body. Fig.17 As shown, the middle thickness of the non-uniform thickness plate is greater than the thickness at both ends, which can make the deformation of the elastic plate 1 more uniform. Fig.17 The upper and lower sides of the non-uniform thickness plate are both arc-shaped, and in the actual manufacturing process, one side can be arc-shaped and the other side can be flat. Further, the non-uniform thickness plate can be set as an arc-shaped non-uniform thickness plate structure as a whole.

[0054] From the top view of the elastic plate 1 , the shape of the elastic plate 1 is generally a rectangle, or a trapezoid with two parallel sides, wherein the lower sides of the two parallel ends are used to fix the homogeneous elastic support body.

[0055] In this embodiment, the lower surfaces of the two sides of the elastic plate 1 (or the first end and the second end of the elastic plate 1) are respectively provided with a plurality of uniform elastic support bodies, such as Figure 1 or Figure 2 As shown in , two are provided on each side, and the number and position of the homogeneous elastic support bodies on both sides correspond one to one. Of course, one, three or more can be provided on each side, which can be adjusted by technicians in this field according to actual needs.

[0056] In order to prevent the elastic plate 1 from bending too much and causing the corresponding homogeneous elastic support bodies on both sides to move relative to each other, the bottoms of the homogeneous elastic support bodies on both sides of the elastic plate 1 are connected by connecting plates, connecting ropes or connecting belts 6. It should be noted that because the homogeneous elastic support bodies on both sides generally move to both sides when they are displaced, the flexible connecting ropes can also play a role in limiting. In addition, the connecting ropes or connecting plates can also achieve the technical effect of preventing the bottom surface of the homogeneous elastic support body from rubbing against the ground and causing wear. The specific shape of the connecting belt 6 is not shown in this embodiment, and reference can be made to the third embodiment. Fig.12 .

[0057] In this embodiment, a cavity structure is provided in the homogeneous elastic support body without affecting the main mechanical properties. The cavity structure can reduce the overall weight and reduce the manufacturing cost. Of course, the cavity structure is generally provided at a large position, 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 this embodiment, the elastic plate 1 is made of metal, non-metal or composite material, wherein the metal material includes but is not limited to existing aviation aluminum. Non-metal materials include but are not limited to existing wood, specifically plywood, and plywood is a multi-layer laminated elastic sheet. Those skilled in the art can also replace it with a multi-layer laminated elastic sheet of other materials. Composite materials can be existing glass fiber, carbon fiber synthetic resin and other composite materials.

[0059] The material of the homogeneous elastic support body is a polymer elastic material, specifically including but not limited to existing rubber. The homogeneous elastic support body has a simple structure and can avoid possible noise during use, especially the noise and vibration caused by the device rising and falling during intense exercise.

[0060] In this embodiment, a plurality of nuts are embedded inside the upper end of each homogeneous elastic support body, and the homogeneous elastic support body can be fixed to the elastic plate 1 through the nuts and bolts on its upper surface. The purpose of setting multiple nuts is to adjust the span between the corresponding homogeneous elastic support bodies on both sides by connecting different nuts. Alternatively, multiple bolt holes with different spans can be provided at both ends of the elastic plate 1, so that the nuts on the upper end of the homogeneous elastic support body are connected to different bolt holes, and the span between the homogeneous elastic support bodies on both sides can also be achieved.

[0061] In this embodiment, a plurality of vacuum suction cups are provided on the lower surface of each homogeneous elastic support body, specifically two or more. The purpose of providing the vacuum suction cups is that when the homogeneous elastic support body is installed on a smooth ground, the homogeneous elastic support body can be fixed on the smooth ground through the vacuum suction cups, thereby further enhancing the stability of the homogeneous elastic support body.

[0062] In this embodiment, the homogeneous elastic support body is an I-shaped support body 2. The specific structure of the I-shaped support body 2 is as follows: Figure 3-Figure 5 As shown, the I-shaped support body 2 is divided into four parts from top to bottom, which are the I-shaped first component, the I-shaped second component, the I-shaped third component and the I-shaped fourth component, respectively. The cross-sectional area of ​​the I-shaped first component is larger than the cross-sectional area of ​​the I-shaped second component, while the cross-sectional areas of the I-shaped second component, the I-shaped third component and the I-shaped fourth component will gradually increase. The reason why the cross-sectional area of ​​the I-shaped first component is larger is to increase the contact area between it and the elastic plate 1, so that the two can be fixed more firmly. The reason why the cross-sectional area of ​​the I-shaped fourth component is larger is to increase the contact area between it and the ground, thereby increasing friction, so that the homogeneous elastic support body can be maintained more firmly. The cross-sectional area of ​​the I-shaped second component is the smallest, so it is the central rotating part of the homogeneous elastic support body. When the elastic plate 1 is subjected to force, the I-shaped second component and the I-shaped first component above it can rotate accordingly.

[0063] Embodiment 2

[0064] like Figure 6-Figure 8 As shown, this embodiment provides a trampoline using an elastic plate. The technical features disclosed in this embodiment are basically the same as those disclosed in the first embodiment, except that the shape of the homogeneous elastic support body is different, as follows:

[0065] In this embodiment, the homogeneous elastic support body is a double-arc support body 3. The specific shape of the double-arc support body 3 is as follows: Figure 6-Figure 8 As shown, it includes a double arc part and a double arc base, wherein the vertical cross-section of the double arc part is a double arc shape, and the narrowest part of the double arc part is the central rotating part. When the center of the elastic plate 1 is compressed, the center of the double arc part and the upper part will rotate accordingly. As for the double arc base, it is a columnar structure.

[0066] Embodiment 3

[0067] like Figure 9-12 As shown, this embodiment provides a trampoline using an elastic plate. The technical features disclosed in this embodiment are basically the same as those disclosed in the first embodiment, except that the shape of the homogeneous elastic support body is different, as follows:

[0068] In this embodiment, the uniform elastic support body is a K-shaped support body 4. The specific shape of the K-shaped support body 4 is as follows: Figure 9-12As shown, it includes an integrally arranged K-shaped upper inclined block and a K-shaped lower inclined block, the cross-sectional area of ​​the K-shaped upper inclined block gradually decreases from top to bottom, the cross-sectional area of ​​the K-shaped lower inclined block gradually increases from top to bottom, and the lower end of the K-shaped upper inclined block is connected to the upper end of the K-shaped lower inclined block. And the connection between the K-shaped upper inclined block and the K-shaped lower inclined block is a central rotating part. When the center of the elastic plate 1 is compressed, the connection between the K-shaped upper inclined block and the K-shaped lower inclined block and the upper K-shaped upper inclined block will rotate accordingly.

[0069] Embodiment 4

[0070] like Figure 13-Figure 16 As shown, this embodiment provides a trampoline using an elastic plate. The technical features disclosed in this embodiment are basically the same as those disclosed in the first embodiment, except that the shape of the homogeneous elastic support body is different, as follows:

[0071] In this embodiment, the homogeneous elastic support body is a conical support body 5. The specific shape of the conical support body 5 is as follows: Figure 13-Figure 16 As shown, it includes an upper column and a lower cone formed in one piece, and the lower end of the upper column is connected to the upper end of the lower cone, and the cross-sectional area of ​​the upper column is the same as the cross-sectional area of ​​the upper surface of the lower cone. That is, the connection between the upper column and the lower cone is the central rotating part, and when the center of the elastic plate 1 is compressed, the connection between the upper column and the lower cone and the upper column will rotate accordingly.

[0072] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A trampoline using an elastic plate, comprising an elastic plate, wherein a plurality of uniform elastic support bodies are fixed to the lower ends of opposite sides of the elastic plate, characterized in that: The homogeneous elastic support body is provided with a central rotating part. When the elastic plate is subjected to pressure, the part above the central rotating part makes a rotational motion about the central rotating part. The width of the central rotating part is smaller than the width of the lower end of the homogeneous elastic support body, and the width of the central rotating part is smaller than or equal to the width of the upper end of the homogeneous elastic support body.

2. The trampoline using elastic plates according to claim 1, characterized in that: The distance from the central rotating part to the bottom end of the uniform elastic supporting body is 1 / 2-4 / 5 of the height of the uniform elastic supporting body.

3. The trampoline using elastic plates 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 middle thickness of the plate of non-equal thickness is greater than the thickness at both ends; The elastic plate is in a rectangular or trapezoidal shape.

4. The trampoline using elastic plates according to claim 1, characterized in that: The bottoms of the homogeneous elastic supporting bodies located on both sides of the elastic plate are connected by connecting plates, connecting ropes or connecting belts.

5. The trampoline using elastic plates according to claim 1, characterized in that: A cavity structure is arranged in the homogeneous elastic supporting body.

6. The trampoline using elastic plates 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 body is rubber.

7. The trampoline using elastic plates according to claim 1, characterized in that: The homogeneous elastic support body is an I-shaped support body.

8. The trampoline using elastic plates according to claim 1, characterized in that: The homogeneous elastic support body is a double-arc support body.

9. The trampoline using elastic plates according to claim 1, characterized in that: The homogeneous elastic support body is a K-shaped support body.

10. The trampoline using elastic plates according to claim 1, characterized in that: The homogeneous elastic support body is a conical support body.

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