CN210355805U

CN210355805U - Adjustable safety trampoline

Info

Publication number: CN210355805U
Application number: CN201822277992.9U
Authority: CN
Inventors: 王永琪; 王建武
Original assignee: Dongguan Wuge Industrial Co ltd
Current assignee: Dongguan Wuge Industrial Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-04-21
Anticipated expiration: 2028-12-29

Abstract

The utility model provides an adjustable safety trampoline, which comprises a bouncing pad, a frame and a flexible rod, wherein the top end of the flexible rod is arranged at the periphery of the bouncing pad, and the bottom end of the flexible rod is arranged on the frame, so that the bouncing pad is erected above the frame; a plurality of leg structures supported below the frame off the ground; the supporting rods are arranged around the bouncing pad, a protective net is stretched above the bouncing pad, and the bottom of the protective net is arranged at the periphery of the bouncing pad; the flexible rod is a rod-shaped structure with the bottom thicker and gradually changed into the top thinner, and the bending rigidity of the flexible rod is more than 500N/m and less than 1200N/m; the bottom end of the flexible rod is fixedly installed on the frame through a bottom end installation structure, and the top end of the flexible rod is fixedly installed on the periphery of the bouncing pad through a buckle structure.

Description

Adjustable safety trampoline

Technical Field

The utility model relates to a trampoline technical field specifically, relates to an adjustable safe trampoline.

Background

Currently, the major trampoline producers worldwide are mainly concentrated on china, the united states, germany and japan. Of which wood board & lath international and watt limited are the most prominent.

The basic structure of the trampoline comprises a bouncing pad, a frame, a plurality of flexible rods, supporting legs, a protective net and supporting rods. The top end of the flexible rod is arranged on the periphery of the bouncing pad, and the bottom end of the flexible rod is arranged on the frame, so that the bouncing pad is erected above the frame. The frame is supported by the support legs to be erected above the ground. The protective net is arranged on the periphery of the bouncing pad and extends towards the upper part of the bouncing pad, and the protective net protects people who move on the bouncing pad from falling off from the bouncing pad. The supporting rod is arranged around the bouncing pad to open the protective net.

Trampoline sports is a healthy and interesting recreational activity. Research shows that trampoline sports not only can exercise body and strengthen muscle strength, but also can help people develop balance and improve motor skills. With the development of technology, trampolines increasingly enter people's lives. At the same time, the drawbacks of conventional trampolines are also exposed, such as:

1. the bending rigidity of the flexible rod of the traditional trampoline is 1200N/m-3000N/m, the installation of the flexible rod needs to consume large strength, and the implementation is difficult for the common people.

2. The top and bottom of the conventional trampoline flexible rods are complicated in installation structure, and cannot substantially assist in the installation of the flexible rods.

3. After the trampoline is installed, the soft and hard elasticity of the trampoline pad can not be adjusted, and the requirements of different people can not be met.

4. The trampoline is not firm enough in structure, easy to collapse and damage and unsafe.

5. Production and transportation are difficult.

Accordingly, there is a need for an improved trampoline structure that overcomes the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a trampoline mainly improves the bending rigidity of a flexible rod and the mounting structure of the flexible rod, so that the trampoline is labor-saving and convenient to mount and can be mounted by the common public by self. After the trampoline is installed, the elastic force of the trampoline bouncing pad can be adjusted to meet the requirements of different people, and the bouncing comfort level is improved. The safety of the trampoline is greatly improved, the trampoline is durable, and the trampoline is made of safe and environment-friendly materials.

The technical scheme of the utility model as follows:

an adjustable safety trampoline comprises

The bouncing mat is provided with a bouncing mat,

a frame, and

the top end of the flexible rod is mounted on the periphery of the bouncing pad through a buckle structure, and the bottom end of the flexible rod is mounted on the frame through a bottom end mounting structure, so that the bouncing pad is erected above the frame;

a plurality of leg structures supported below the frame off the ground;

the supporting rods are arranged around the bouncing pad, a protective net is stretched above the bouncing pad, and the bottom of the protective net is arranged at the periphery of the bouncing pad;

the flexible rod is a rod-shaped structure with the bottom thicker and gradually changed into the top thinner, and the bending rigidity of the flexible rod is more than 500N/m and less than 1200N/m;

the bottom end of the flexible rod is fixedly installed on the frame through a bottom end installation structure, and the top end of the flexible rod is fixedly installed on the periphery of the bouncing pad through a buckle structure.

The bottom end mounting structure comprises upper jacks arranged on the upper side of the frame in pairs and lower jacks arranged on the lower side of the frame in pairs, and each pair of the upper jacks and the lower jacks are arranged in a staggered manner;

the bottom end mounting structure further has a sleeve corresponding to each pair of the upper insertion hole and the lower insertion hole, the sleeve is inserted into the pair of the upper insertion hole and the lower insertion hole, and the bottom end of the flexible rod is inserted into the sleeve.

Preferably, the diameter of the lower insertion hole is larger than the diameter of the bottom end of the sleeve and smaller than the diameter of the main body portion of the sleeve, so that the sleeve is prevented from falling out of the lower insertion hole.

Preferably, the top end of the sleeve is provided with a radially gradually increasing nozzle to facilitate insertion of the bottom end of the flexible rod.

Preferably, the bottom end mounting structure further has an elastic member inserted between the hole wall of the upper insertion hole and the flexible rod, thereby adjusting the position of the flexible rod in the frame.

Preferably, the upper insertion hole is an elliptical hole, and two ends of the elliptical hole are marked as an end A and an end B and are respectively positioned on the inner side and the outer side of the upper side of the frame; the elastic member is inserted into the A-end or the B-end of the elliptical hole, thereby adjusting the position where the flexible rod passes through the upper side of the frame.

Preferably, two limiting grooves are symmetrically dug in the middle of the hole wall of the upper jack; the side of the elastic part, which is tightly attached to the sleeve, is an inner side, the side of the elastic part, which is tightly attached to the hole wall, is an outer side, and the inner side and the outer side are both arc-shaped surfaces; the joint of the two arc surfaces is provided with a clamping block, and the shapes of the clamping block and the limiting groove are matched with each other and can be clamped mutually.

Preferably, an upper convex part extends from the joint of the fixture block and the outer side surface; a lower convex part extends from the bottom of the outer side surface of the elastic part; when the elastic piece is inserted into the upper jack, the upper convex part and the lower convex part respectively clamp the periphery of the hole wall of the upper jack from the upper direction and the lower direction of the upper jack, so that the elastic piece is prevented from falling off from the upper jack.

Preferably, the elastic member is an elastic plastic member or an elastic rubber material.

The buckle structure is arranged on a bouncing pad of the trampoline, and the top of the flexible rod is arranged at a preset position on the periphery of the bouncing pad; the buckle structure comprises a mounting part, a flexible belt and at least one clamping part; one end of the belt is fixedly arranged on the bouncing pad, the clamping piece is fixedly arranged on the belt, and the mounting piece is provided with a through hole; the strap and the retainer can pass through the through hole, and then the retainer is rotated to be retained at the opening of the through hole, so that the strap cannot be pulled back from the through hole; the top of the flexible rod is accommodated in the mounting piece, so that the top of the flexible rod is mounted at a preset position on the periphery of the bouncing pad.

The bottom of installed part is equipped with the holding tank, the top of flexible pole is fixed to be set up in the holding tank.

The receiving groove is provided in an extending direction of a top portion of the flexible rod.

The mounting member has a narrow tube portion and an enlarged head portion disposed at a top end of the narrow tube portion; the top end of the flexible rod is inserted into the thin tube part and is fixedly connected with the thin tube part; the through hole is arranged on the side of the head.

The thin tube part is disposed in an extending direction of a top of the flexible rod.

A blocking piece protrudes from the head at the outlet of the through hole; the blocking piece can block the clamping piece, so that the clamping piece is prevented from sliding and retracting into the through hole.

The clamping piece is provided with a short edge and a long edge, the length of the short edge of the clamping piece is smaller than the hole width of the through hole, and the long edge of the clamping piece is larger than the hole width of the through hole, so that the clamping piece can penetrate through the through hole and can be clamped at the through hole along the direction of the long edge.

Preferably, two holding pieces are arranged on the belt.

Preferably, when the clamping piece is arranged to be in a long cylindrical shape, the through hole is also arranged to be in a long cylindrical shape.

Preferably, the holding member is configured in a long cube shape, and the through hole is also configured in a long cube shape.

Preferably, the holding member is a thin metal card having a long side and a short side, and the through hole is a flat hole.

Preferably, the bending rigidity of the flexible rod is 1000-1150N/m.

Preferably, the rod diameter of the bottom of the flexible rod is 0.5-3 cm, and the rod diameter of the top of the flexible rod gradually tapers to 0.03-2.5 cm.

Preferably, the flexible rod is an aviation aluminum rod, a glass fiber rod or a carbon fiber rod.

Preferably, the length of the flexible rod is 0.05-1.5 m.

Preferably, the length of the flexible rod is 0.45-0.6 m.

Preferably, the cross section of the flexible rod is circular, oval, triangular, quadrilateral, pentagonal or hexagonal or irregular.

Preferably, a plurality of the supporting leg structures are arranged at the bottom of the frame to support the frame; the support leg structure is provided with a horizontal rod, a first vertical rod and a second vertical rod which are arranged at two ends of the horizontal rod, and a third vertical rod which is arranged at the middle part of the horizontal rod, wherein the first vertical rod and the second vertical rod are opposite to each other, the third vertical rod inclines towards the center direction of the trampoline mattress respectively, and the top of the first vertical rod and the top of the second vertical rod are reversely bent.

The frame is provided with a matching cylinder matched with the tops of the first vertical rod and the second vertical rod, and the mounting direction of the matching cylinder on the frame is the extending direction of the tops of the first vertical rod and the second vertical rod.

The frame is a round shape formed by connecting a plurality of sections of arc-shaped steel pipes end to end, and a first inserting barrel and a first inserting joint which are matched are respectively arranged at the joint of the adjacent arc-shaped steel pipes; the first plug connector is inserted into the first plug cylinder and fixedly connected with the first plug cylinder through a pin.

The arc-shaped steel pipe is provided with a second inserting cylinder at the joint, the second inserting cylinder is positioned in the extending direction of the top of the third vertical rod, and the second inserting cylinder is inserted into the top of the third vertical rod.

The middle part of the horizontal rod is provided with a third inserting cylinder, and the bottom end of the third vertical rod is inserted into the third inserting cylinder.

A sleeve is welded at the bent part of the first vertical rod, a sleeve opening of the sleeve is positioned in the extending direction of the bottom end of the supporting rod, and the bottom end of the supporting rod is inserted into the sleeve; the bottom end of the supporting rod is matched with the shape and the size of the sleeve opening of the sleeve.

The bottom of the sleeve is set to be a cylinder, and the diameter of the cylinder is slightly smaller than that of the cylinder opening.

Each support rod is a large arc-shaped rod formed by splicing an upper small arc-shaped steel pipe and a lower small arc-shaped steel pipe.

And the joint of the two small arc-shaped steel pipes is also provided with a fourth plug barrel and a fourth plug connector which are matched with each other, the fourth plug connector is inserted into the fourth plug barrel, and the fourth plug connector and the fourth plug barrel are fixedly connected through a pin. The fourth plug-in cylinder and the cylinder opening of the sleeve are identical in structure. The fourth plug connector is identical to the bottom end of the support rod in structure.

The utility model has the advantages that: adjustable safe trampoline, bottom mounting structure be equipped with the sleeve on the frame, this sleeve inserts the frame to hold take the bottom of flexible pole makes things convenient for the installation of flexible pole, the laborsaving convenience of mounting means has simplified frame construction, production convenience. Still be equipped with the elastic component on the frame, this elastic component adjustment the flexible rod inserts the position of frame to the adjustment the flexible rod is to the tensioning dynamics of bouncing pad at any time, adjusts the elasticity of bouncing pad, improves bouncing pad's spring comfort level, satisfies different user's demands, and the regulative mode is simple, easy to carry out.

Buckle structure just can dismantle fixed the combination with flexible rod and trampoline spring pad, the laborsaving convenience of installation improves the installation security. Can easily realize the installation of trampoline through this buckle structure, improve the installation security, and the elasticity of the spring pad of trampoline is adjustable.

The supporting leg structure increases the stability of the trampoline and improves the safety performance of the trampoline.

The flexible rod is of a rod-shaped structure with the bottom thicker and gradually changed into the top thinner, and the bending rigidity of the flexible rod is more than 500N/m and less than 1200N/m. Therefore, the flexible rod is convenient to bend and install, and the installation of the flexible rod can be really realized for the common people.

Description of the drawings:

fig. 1 is a schematic structural view of the trampoline of the present invention.

Fig. 2 is a schematic structural view of the mounting structure at the bottom end of the flexible rod of the trampoline of the present invention.

Fig. 3 is an exploded view of the bottom end mounting structure of the trampoline flexible rod of the present invention.

Fig. 4 is a schematic structural diagram of a sleeve of the trampoline flexible rod bottom end mounting structure of the present invention.

Fig. 5 is a schematic structural view of the tube unit 21 of the trampoline of the present invention.

Fig. 6 is a schematic structural view of the elastic member of the trampoline flexible rod bottom end installation structure of the present invention.

Fig. 7 is a schematic view of the trampoline according to another aspect of the present invention.

Fig. 8 is a schematic structural diagram of the buckle structure of the present invention.

Fig. 9 shows a schematic structural diagram of another embodiment of the buckle structure of the present invention.

Fig. 10 is a schematic structural diagram of the present invention and the flexible rod cooperating with the buckle structure and the bottom end mounting structure.

Fig. 11 is another schematic view of the trampoline of the present invention.

Fig. 12 is another schematic structural diagram of the safety buckle structure of the present invention.

Fig. 13 is an exploded view of the trampoline of the present invention.

Fig. 14 is a schematic view of the leg structure 40 and the support rod 60 of the trampoline of the present invention.

Fig. 15 is a schematic structural view of the sleeve 45.

Detailed Description

In order to make the utility model discloses a utility model purpose, technical scheme and technological effect are more clear and are understood, and it is right to combine specific embodiment below the utility model discloses do further explanation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, a trampoline of current popularity generally includes a bouncing pad 10 and a frame 20, and a plurality of flexible rods 30, the top ends 31 of the flexible rods 30 being mounted around the bouncing pad 10, and the bottom ends of the flexible rods 30 being mounted on the frame 20, thereby erecting the bouncing pad 10 above the frame 20. Under the pressure of the bouncing pad 10, the flexible rod 30 will typically bend through an arc, thereby tensioning the bouncing pad 10. The user can bounce, play and perform on the bouncing pad 10. The flexible rod 30 is preferably an aircraft aluminum rod, a fiberglass rod or a carbon fiber rod.

The bouncing pad 10 is preferably circular, but may be any other shape, such as square, regular pentagon, regular hexagon, oval, etc. The frame 20 is a ring formed by splicing a plurality of pipe units 21. The ends of adjacent tube units 21 are respectively provided with a tongue and a socket which are matched with each other. The tabs are inserted into the sockets to connect adjacent tube units 21.

The frame 20 is preferably placed on the support legs 40 and may also be placed on the ground. Preferably, the pipe unit 21 is placed on the support leg 40.

The flexible rods 30 are typically required to have some buckling resistance in order to support the mattress and the user. In particular, when the flexible rods 30 are installed, the bottom of the flexible rods 30 are usually fixed to the supporting base 20, and then the top of the flexible rods 30 is deflected by about 300-450 mm from the natural resting position toward the center of the mat 10. The flexural rigidity of the flexible rod is related to the material properties, geometry. The bending stiffness of the cylindrical flexible rod 30 is consistent across portions of the rod, given the material. Deflection of the cylindrical flexible rod requires a great deal of effort, making it difficult to install a single trampoline at a time, even for a strong male adult. The application will the flexible rod sets up to become the thin rod-shaped structure in top from thick gradually in bottom. Specifically, the rod diameter of the bottom of the flexible rod is 0.05-3 cm, and the rod diameter of the top of the flexible rod is 0.03-2.5 cm in a gradual tapering manner. Under the condition of material determination, the bending rigidity of the flexible rod is in direct proportion to the diameter of the rod, the bending rigidity of the thicker part of the rod is higher, and the bending rigidity of the thinner part of the rod is lower. Such a flexible rod structure is easy to bend, enabling the top of the flexible rod 30 to be deflected from a natural resting state toward the center of the mat 10 with less effort, thereby facilitating the installation of the flexible rod 30 and the mat 10, and enabling unobstructed installation even for women and children with less effort.

Further, the bending stiffness of the flexible rod 30 is set to be more than 500N/m and less than 1200N/m. Preferably, the bending stiffness is set to 1000-. The arm strength of a normal adult male is between 300N and 600N. If the flexural rigidity of the flexible rods exceeds 1200N/m, it is difficult for a typical adult male to deflect the tops of the flexible rods from their natural resting position toward the center of the mattress 10, and this is not generally possible for a woman. The flexural rigidity of the flexible rods, however, is lower than 500N, making it difficult to support the weight of the mat and the user bouncing on the mat. In addition, the flexural rigidity of the flexible rod 30 is set to be 500-1200N/m. To compensate for the reduced support of the mat 10 caused by the lower bending stiffness of the flexible rods 30, the number of flexible rods 30 needs to be increased.

The material of the common flexible rod in the market at present is glass fiber rod or carbon fiber. The glass fiber rod has good corrosion resistance, insulating property, heat insulation, high strength and the like. However, glass fiber rods have a high hardness, which, in combination with their inherent brittleness, constitute an outstanding low bending resistance, have the disadvantages of being not resistant to bending, having poor abrasion resistance, having poor flexibility, etc. The glass fiber rod is easy to crack after being repeatedly used for a long time and used in a low-temperature state, loses the original elasticity, and sometimes is also broken to cause the damage of the trampoline, so that the potential safety hazard exists. In addition, according to 2017, 10, 27, glass fiber is listed in a category 3 carcinogen list published by the international cancer research institution of the world health organization, and is unsafe material.

Preferably, the flexible rod 30 of the present application is preferably made of an aircraft aluminum rod. The aviation aluminum rod is light in material, the surface of the aviation aluminum rod is oxidized, the wind resistance and the pressure resistance of the aviation aluminum rod are higher than those of a glass fiber rod, and the aviation aluminum rod has the advantages of good strength, toughness, fatigue resistance, good plasticity, difficulty in fracture and the like. Even if the bearing pressure exceeds the upper limit, the aviation aluminum rod cannot be broken, but the bending degree is increased, the trampoline cannot be damaged, and the safety of the trampoline is improved.

The length of the flexible rod 30 is 0.05-1.5 m.

Preferably, the length of the flexible rod 30 is 0.45-0.6 m.

The cross section of the flexible rod 30 is circular, oval, triangular, quadrilateral, pentagonal, hexagonal or amorphous.

Referring to fig. 1, the frame 20 is provided with a bottom end mounting structure for adjusting a mounting position of a bottom end of the flexible rod 30, the bottom end mounting structure including an upper insertion hole 24 provided at an upper side of the frame 20 and a lower insertion hole 25 provided at a lower side of the frame 20. Each pair of the upper insertion hole 24 and the lower insertion hole 25 is arranged in a staggered manner. The adjustment structure further comprises a sleeve 26 corresponding to each pair of the upper insertion hole 24 and the lower insertion hole 25. The sleeve 26 is inserted into the upper insertion hole 24 and the lower insertion hole 25. The bottom end of the flexible rod 30 is inserted into the sleeve 26.

Referring to fig. 2, 3 and 4, in order to prevent the sleeve 26 from falling out of the lower insertion hole 25, the diameter of the bottom end 262 of the sleeve 26 is set smaller than the diameter of the body portion 261 thereof. Specifically, the diameter of the lower insertion hole 25 is larger than the diameter of the bottom end 262 and smaller than the diameter of the main body portion 261, so that the sleeve 26 is prevented from falling out of the lower insertion hole 25.

Further, the top end 263 of the sleeve 26 is provided with a radially increasing nozzle to facilitate insertion of the bottom end of the flexible rod 30.

When the bottom end of the flexible rod 30 is installed, one sleeve 26 is inserted into the pair of the upper insertion hole 24 and the lower insertion hole 25, and then the bottom end of the flexible rod 30 is directly inserted into the sleeve 26. Or the bottom end of the flexible rod 30 may be directly inserted into the sleeve 26, and then the sleeve 26 is inserted into the pair of the upper insertion hole 24 and the lower insertion hole 25, so that the installation is simple and convenient.

It should be understood that the lower end of the flexible rod 30 is fixed in the inserted position in the frame 20 after the lower end of the flexible rod 30 and the sleeve 26 are inserted into the lower insertion hole 25. When the top ends of all the flexible rods 30 are installed around the bounce mat 10, the installation positions of the top ends of the flexible rods 30 are unchanged, and the tension and the elasticity of the bounce mat 10 are constant.

Referring to fig. 2, 4 and 6, an elastic member 27 is further provided at the upper insertion hole 24. The elastic member 27 is inserted between the hole wall of the upper insertion hole 24 and the flexible rod 30, thereby adjusting the position of the flexible rod 30. Preferably, the upper insertion hole 24 is provided as an elliptical hole having both ends, denoted as a end and B end, located inside and outside the upper side of the frame, respectively. The elastic member 27 is inserted into the a end or the B end of the oval hole, thereby adjusting the position of the flexible rod 30 in the frame 20, and thus the tightness of the bounce mat and the elasticity thereof. Specifically, when the bottom end of the flexible rod 30 and the sleeve 26 pass through the upper insertion hole 24, they are inserted into the lower insertion hole 25. When the elastic member 27 is inserted into the position a, i.e., the position where the upper insertion hole 24 is close to the inside of the upper side of the frame 20, the flexible rod 30 and the sleeve 26 are pressed to be located at the position B. At this time, the tension of the flexible rod 30 on the bounce mat 10 is large, and the elasticity of the bounce mat 30 is high. When the elastic member 27 is inserted into the B position, i.e. the position where the upper insertion hole 24 is close to the outer side of the frame 20, the flexible rod 30 and the sleeve 26 are pressed to the a position, the tension to the bounce mat 10 is small, and the elasticity of the bounce mat 30 is low.

Preferably, referring to fig. 5, two limiting grooves 28 are symmetrically dug in the middle of the hole wall of the upper insertion hole 24. Referring to fig. 5, the side of the elastic element 27 clinging to the sleeve 26 is an inner side surface 271, the side clinging to the hole wall is an outer side surface 272, the inner side surface 271 and the outer side surface 272 are both arc surfaces, a clamping block 273 is arranged at the joint of the two arc surfaces, and the clamping block 273 and the limiting groove 28 are matched in shape and can be clamped with each other.

Preferably, the junction between the latch 273 and the outer side surface 272 extends to form an upper protrusion 274. The bottom of the outer side surface 272 of the elastic member 27 extends to form a lower convex portion 275. When the elastic member 27 is inserted into the upper insertion hole 24, the upper protrusion 274 and the lower protrusion 275 respectively hold the periphery of the hole wall of the upper insertion hole 24 from the upper and lower directions of the upper insertion hole 24, thereby preventing the elastic member from falling off from the upper insertion hole 24.

Preferably, referring to fig. 1, 7 and 11, in order to facilitate the installation of the top of the flexible rod 30, a plurality of fastening structures 70 are disposed on the periphery of the bouncing pad 10, and the fastening structures 70 correspond to the flexible rods 30 one by one, so that the top 31 of the flexible rod 30 is detachably installed at a predetermined position on the periphery of the bouncing pad 10, and the installation manner is labor-saving and convenient. Referring to fig. 2, the snap structure 70 includes a mounting member 71, a flexible band 72, and at least one retaining member 73 fixedly disposed on the flexible band 72. The flexible belt 72 is fixedly arranged at the bottom of the bounce mat 10, the mounting part 71 is provided with a through hole 723, the retainer 73 and the belt 72 can pass through the through hole 723, and after the through hole 723 passes through, the retainer 73 is rotated to be fixedly retained at the opening of the through hole 723, so that the belt 72 is prevented from being pulled back from the through hole 723 under the action of a pulling force; the top of the flexible rod 30 is received in the mounting member 71 to mount the top 31 of the flexible rod 30 on the bounce mat 10 at a predetermined position.

Referring preferably to fig. 9, in one embodiment of the present invention, the bottom of the mounting member 72 is provided with a receiving groove (not shown) in which the top portion 31 of the flexible rod 30 is fixedly disposed. Preferably, the receiving groove is provided in the extending direction of the top 31 of the flexible rod, so as to facilitate the insertion and matching of the top 31 of the flexible rod 31. In the embodiment shown in fig. 2, the mounting member 72 is cube-like in shape. It should be understood that the profile of the mounting member 72 is not limited to the shape shown in the figure, and may be spherical, polyhedral or any other shape. The utility model discloses do not specifically prescribe a limit to the appearance of installed part 72, do not deviate from the utility model discloses under the prerequisite of basic idea, the arbitrary change of installed part 72 external shape all should be regarded as being in the utility model discloses the protection scope that prescribes a limit to is so.

Preferably, referring to fig. 9, 10 and 11, the mounting member 72 has a narrow tube portion 721 and an enlarged head portion 722 disposed at the tip of the narrow tube portion 721. The tip 31 of the flexible rod 30 is inserted into the narrow tube part 721 and fixedly connected thereto. The narrow tube part 721 is provided in the extending direction of the tip part 31 of the flexible rod so as to facilitate the insertion and matching of the tip part 31 of the flexible rod 31. The head 722 is provided with the through hole 723 in a lateral direction.

Referring to fig. 9, the transverse diameter of the head portion 722 is larger than the narrow tube portion 721, so that the contact area between the mounting member 71 and the bouncing pad 10 is increased, and the bouncing pad 10 is supported more stably.

Preferably, an abutment plate 724 projects from the head 722 at the outlet of the through hole 723. The blocking piece 724 can block the retainer 73, so as to prevent the retainer 73 from sliding and retracting into the through hole 723.

Specifically, referring to fig. 9, the head portion 721 is shaped like a rectangular parallelepiped, and the bottom surface of the head portion is integrally formed with the narrow tube portion 721, and the side of the narrow tube portion provided with the through hole 723 is arranged with a large end and a small end, and is tapered from the large end to the small end. The through-hole 723 is provided in a flat hole. The strap 72 and the retainer 73 are both in a sheet shape so as to be capable of passing through the through hole 723 in cooperation with the through hole. After passing through the through hole 723, the retainer 73 is rotated at a certain angle to be retained at the orifice of the through hole 723.

The retainer 73 can pass through one side of the through hole 713 and be retained at the other side opening of the through hole 713. In the embodiment of the present invention, the holding member 73 has a smaller short side and a longer long side. The short side of the retainer 73 is slightly smaller than the hole width of the through hole 713, and the long side of the retainer 73 is slightly larger than the hole width of the through hole 713. Such a structural arrangement enables the retainer 73 to pass from one side to the other side of the through hole 713, and rotates the retainer 73 after passing through to retain it at the orifice of the through hole 713.

It should be understood that the catch 73 matches the shape of the through hole 713. For example, when the retainer 73 is provided in an elongated cylindrical shape, the through hole 713 should also be provided in an elongated cylindrical shape; when the retainer 73 is formed in a long cube shape, the through hole 713 must be correspondingly formed in a long cube shape. Referring to fig. 8, 9 and 12, in the preferred embodiment of the present invention, the holding member 73 is configured as a long cubic thin metal card. The through hole 713 is also provided as an elongated cuboid flat. Preferably, the holding member 73 of the present invention is designed in a shape of a Chinese character 'ri'. Preferentially, the tail part of the clamping piece in the shape of the Chinese character 'ri' is provided with a hook.

After the retainer 73 passes through the through hole 713, the retainer 73 is retained at the other side hole of the through hole 713 along the long diameter direction, so that the strap 72 is fixed, the strap 72 is prevented from retracting under the action of the pulling force, and the top end of the flexible rod 30 is retained at the preset position of the bottom of the periphery of the bounce mat 10.

It will be appreciated that the position of the retainer 73 on the strap 72 must satisfy the design objective of "mounting the top end of the flexible rod 30 at a predetermined position on the periphery of the bouncing pad 10". Therefore, it is appropriate that the retainer 73 is mounted on the belt 72. The catch 73 is too far from or too close to the bouncing pad 10, which does not achieve the design purpose.

The belt 72 is fixedly arranged on the bounce mat 10. It should be understood that the flexible strap 72 can be secured to the bottom of the bouncing pad 10 in a variety of ways, such as by welding, snapping, and the like, which are conventional strap securing means. In the preferred embodiment of the present invention, the flexible strap 72 is sewn to the bottom of the bounce mat.

Referring to FIG. 10, the mounting member 72 may be disposed directly on top of the flexible rod 30. During installation, the bottom end 32 of the flexible rod 30 is inserted into the sleeve 26 of the seat tube 20, the strap 72 is threaded through the through hole 723, the top 31 of the flexible rod 30 and the mounting member 72 are pushed to a predetermined position around the bounce pad 10, the retainer 73 is pulled out of the through hole 723, and the retainer 73 is rotated to be retained in the through hole 723, so that the top 31 and the head 722 of the flexible rod 30 are installed at the bottom of the periphery of the bounce pad 10.

The mounting member 72 may be directly threaded on the strap 71. During the installation process, the bottom end 32 of the flexible rod 30 is firstly inserted into the sleeve 26 of the supporting seat tube 20, the mounting member 72 is adjusted to a proper position of the strap 71, the top part 31 of the flexible rod 30 is inserted into the mounting groove or the thin tube part of the mounting member 72, the top part 31 of the flexible rod 30 and the mounting member 72 are pushed to a preset position on the periphery of the bounce pad 10, the holding member 73 is pulled out of the through hole 723, and the holding member 73 is rotated to be held at the through hole 723, so that the purpose of mounting the top part 31 and the head part 722 of the flexible rod 30 at the bottom of the periphery of the bounce pad 10 is achieved.

Structurally, the trampoline has a plurality of flexible rods 30 uniformly distributed on the bottom of the support seat tube 20 and the periphery of the bounce mat 10 to support the bounce mat 10, so that the bounce mat 10 is stressed in all directions in a balanced manner. In the installation process of the trampoline, by adopting the method of sequentially installing the plurality of flexible rods 30, the bounce mat on one side without the flexible rods 30 is unbalanced in stress, so that the installation difficulty of the flexible rods on the side is increased, and even the forming structure of a final product is influenced. To avoid this, referring to fig. 11 and 12, the two catches 73 are provided on the strap 72 of the present invention, and the first catch 73 enables the top of the flexible rod 30 and the head 722 to be mounted in a pre-installed position, for example, near the periphery of the bouncer mat 10. The second catch 73 enables the top of the flexible rod 30 and the head 722 to be mounted in an installed position, i.e., around the periphery of the bouncer mat 10. In the mounting process, the bottom end of the flexible rod 30 is fixed to the seat tube 20, the strap 72 is pulled so that the first retainer 73 passes through the through hole 713 of the head, and the retainer 73 is retained at the through hole 713 in the long-diameter direction. At this point, the flexible rod 30 top and the head are mounted in a pre-mounted position, such as: a perimeter of the bounce pad. After all the tops of the flexible rods 30 are mounted at the pre-mounting position, the straps 72 are sequentially pulled so that the second holding member 73 passes through the through hole 723 and is held at the through hole 723 along the long diameter direction, the flexible rods 30 are further bent, and the tops of the flexible rods 30 are mounted at the mounting position, i.e., the periphery of the bounce mat 10.

Typically, the frame 20 is circular in shape, with several segments of curved steel tubing 24 connected end to end for ease of transport. The joints 25 of the adjacent arc-shaped steel pipes 24 are respectively provided with a first plug cylinder and a first plug connector (not shown) which are matched with each other. The first plug connector is inserted into the first plug cylinder and fixedly connected with the first plug cylinder through a pin. In a conventional trampoline configuration, the frame 20 mounts the bottom ends of the flexible rods 30, and the top ends of the flexible rods 30 are supported about the periphery of the mat 10. The mat 10 presses the flexible rods 30 downward, thereby bending them toward the center of the mat 10. In the installation process of the trampoline, after one arc-shaped steel pipe 24 is connected with the mat 10 through the plurality of flexible rods 30, under the pressure of the mat 10, the flexible rods 30 are bent towards the center of the mat 10 and pull the arc-shaped steel pipe 24 upwards towards the center of the mat 10, so that the middle of each arc-shaped steel pipe 24 is high, and the two sides of each arc-shaped steel pipe are low, so that the adjacent arc-shaped steel pipes 24 fall off or collapse from the connection part, and the stability of the frame 20 is damaged.

Referring to fig. 13 and 14, in order to support the frame 20 more stably, the leg structure 40 has a horizontal bar 41, a first vertical bar 42 and a second vertical bar 43 provided at both ends of the horizontal bar 41, and a third vertical bar 44 provided at a middle portion of the horizontal bar 41, the first vertical bar 42 and the second vertical bar 43 are respectively inclined toward a center of the trampoline mat with respect to the third vertical bar 44, and

top portions

421 and 431 of the first vertical bar 42 and the second vertical bar 43 are bent reversely.

The frame 20 is provided with a matching barrel 21 respectively matched with the tops 421 and 431 of the first vertical rod 42 and the second vertical rod 43. The installation direction of the fitting cylinder 21 on the frame 20 must be in the extending direction of the top 421 and 431 of the first vertical rod 42 and the second vertical rod 43, so that the installation of the leg structure 40 can be conveniently realized. Further, in order to achieve a stable installation of the both, the fitting cylinder 21 and the top 421 and 431 are fixedly connected by the pin 22.

After the first vertical rod 42 and the second vertical rod 43 are inserted into the matching cylinder 21, acting force in the direction opposite to that of the flexible rod 30 is applied to the arc-shaped steel pipe 24, so that the arc-shaped steel pipe 24 is kept balanced, and the arc-shaped steel pipe 24 is prevented from being high in the middle and low at two ends.

For more stable support of the frame 20, the arc steel pipe 24 is provided with a second socket 23 at the connection, and the second socket 23 is located in the extending direction of the top of the third vertical rod 44. The top of the third vertical rod 44 is inserted into the second socket 23, so as to support the joint 25 of the arc-shaped steel pipes 24 and prevent the adjacent arc-shaped steel pipes 24 from falling off or collapsing from the joint.

The middle of the horizontal rod 41 is provided with a third insertion tube 46, and the bottom end of the third vertical rod 44 is inserted into the third insertion tube 46, so that the third vertical rod 44 can be conveniently detached and installed.

Referring to fig. 13 and 14, the sleeve 45 is welded to the first vertical rod 42 at the bent position, the installation direction of the opening 451 of the sleeve 45 is located in the extending direction of the bottom end 61 of the supporting rod 60, and the bottom end 61 of the supporting rod 60 is inserted into the sleeve 45. The mouth 451 of the sleeve 45 and the bottom end 61 of the support rod 60 are shaped to fit each other. Preferably, the barrel mouth 451 of the sleeve 45 is provided as a flat mouth. For example, the opening 451 of the sleeve 45 is an oval flat opening, and the bottom end 61 of the support rod 60 is also oval. The barrel mouth 451 of the sleeve 45 is a rectangular flat mouth, and the bottom end 61 of the support rod 60 is also rectangular. The flat mouth prevents the support bar from rotating, thereby increasing the stability of the support 60.

Further, referring to fig. 15, the bottom of the sleeve 45 is provided as a cylinder 452, and the diameter of the cylinder 452 is slightly smaller than the diameter of the nozzle 451. After the bottom end 61 of the supporting rod 60 is inserted into the barrel opening 451, the bottom end 61 may be squeezed into the barrel 452 under pressure, and since the diameter of the barrel 452 is slightly smaller than that of the bottom end 61, the bottom end 61 is tightly wrapped, so as to increase the combining force between the bottom end 61 and the barrel 61, and the bottom end 61 is difficult to fall off from the sleeve 45, thereby further increasing the installation stability of the supporting rod 60.

Preferably, the support rod 60 is a large arc-shaped rod formed by splicing an upper small arc-shaped steel pipe 62 and a lower small arc-shaped steel pipe 62. Specifically, the joint of the upper and lower sections of the small arc-shaped steel pipe 62 is also provided with a fourth plug cylinder 621 and a fourth plug connector 622 which are matched with each other. The fourth plug 622 is inserted into the fourth plug 621, and the two are fixedly connected by the pin 63. The upper and lower sections of arc-shaped steel pipes 62 are spliced into a large arc-shaped rod, so that the support rod is convenient to transport. The upper and lower sections of arc-shaped steel pipes are connected in a plug-in mode and are fixedly connected by matching with the pin 63, so that the installation is convenient, and the structure is stable.

Preferably, the fourth socket 621 has the same structure as the nozzle of the sleeve 45. The fourth plug 622 has the same structure as the bottom end 61 of the support rod 60, and the function and effect thereof are the same, which are not described herein again.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims

1. An adjustable safety trampoline comprises

The bouncing mat is provided with a bouncing mat,

a frame, and

a flexible rod having a top end at a periphery of the bounce mat and a bottom end mounted on the frame to mount the bounce mat above the frame;

a plurality of leg structures supported below the frame off the ground;

the bottom end of the flexible rod is fixedly arranged on the frame through a bottom end mounting structure, and the top end of the flexible rod is fixedly arranged on the periphery of the bouncing pad through a buckle structure;

2. An adjustable safety trampoline according to claim 1, wherein: the diameter of the lower insertion hole is larger than the diameter of the bottom end of the sleeve and smaller than the diameter of the main body part of the sleeve, so that the sleeve is prevented from falling off from the lower insertion hole.

3. An adjustable safety trampoline according to claim 1, wherein: the bottom end mounting structure further has an elastic member inserted between the hole wall of the upper insertion hole and the flexible rod, thereby adjusting the position of the flexible rod in the frame.

4. An adjustable safety trampoline according to claim 3, wherein: the upper jack is an elliptical hole, and two ends of the elliptical hole are marked as an end A and an end B and are respectively positioned on the inner side and the outer side of the upper side of the frame; the elastic member is inserted into the A-end or the B-end of the elliptical hole, thereby adjusting the position where the flexible rod passes through the upper side of the frame.

5. An adjustable safety trampoline according to claim 3, wherein: the buckle structure is arranged on a bouncing pad of the trampoline, and the top of the flexible rod is arranged at a preset position on the periphery of the bouncing pad; the buckle structure comprises a mounting part, a flexible belt and at least one clamping part; one end of the belt is fixedly arranged on the bouncing pad, the clamping piece is fixedly arranged on the belt, and the mounting piece is provided with a through hole; the strap and the retainer can pass through the through hole, and then the retainer is rotated to be retained at the opening of the through hole, so that the strap cannot be pulled back from the through hole; the top of the flexible rod is accommodated in the mounting piece, so that the top of the flexible rod is mounted at a preset position on the periphery of the bouncing pad.

6. An adjustable safety trampoline according to claim 5, wherein: the bottom of installed part is equipped with the holding tank, the top of flexible pole is fixed to be set up in the holding tank, the holding tank sets up the extending direction at the top of flexible pole.

7. An adjustable safety trampoline according to claim 5, wherein: the mounting member has a narrow tube portion and an enlarged head portion disposed at a top end of the narrow tube portion; the top end of the flexible rod is inserted into the thin tube part and is fixedly connected with the thin tube part; the through hole is arranged on the side of the head.

8. An adjustable safety trampoline according to claim 5, wherein: the clamping piece is provided with a short edge and a long edge, the length of the short edge of the clamping piece is smaller than the hole width of the through hole, and the long edge of the clamping piece is larger than the hole width of the through hole, so that the clamping piece can penetrate through the through hole and can be clamped at the through hole along the direction of the long edge.

9. An adjustable safety trampoline according to claim 5, wherein: the belt is provided with two clamping pieces.

10. An adjustable safety trampoline according to claim 1, wherein: the bending rigidity of the flexible rod is 1000-1150N/m; the rod diameter of the bottom of the flexible rod is 0.5-3 cm, and the rod diameter of the top of the flexible rod is 0.03-2.5 cm after the flexible rod is gradually thinned; the length of the flexible rod is 0.05-1.5 m.

11. An adjustable safety trampoline according to claim 1, wherein: the cross section of the flexible rod is circular, oval, triangular, quadrilateral, pentagonal or hexagonal or amorphous.

12. An adjustable safety trampoline according to claim 1, wherein: the plurality of supporting leg structures are arranged at the bottom of the frame to support the frame; the support leg structure is provided with a horizontal rod, a first vertical rod and a second vertical rod which are arranged at two ends of the horizontal rod, and a third vertical rod which is arranged in the middle of the horizontal rod, wherein the first vertical rod and the second vertical rod are respectively inclined towards the center direction of the trampoline pad relative to the third vertical rod, and the tops of the first vertical rod and the second vertical rod are reversely bent; the frame is provided with a matching cylinder matched with the tops of the first vertical rod and the second vertical rod, and the mounting direction of the matching cylinder on the frame is the extending direction of the tops of the first vertical rod and the second vertical rod.

13. An adjustable safety trampoline according to claim 12, wherein: the frame is a round shape formed by connecting a plurality of sections of arc-shaped steel pipes end to end, and a first inserting barrel and a first inserting joint which are matched are respectively arranged at the joint of the adjacent arc-shaped steel pipes; the first plug connector is inserted into the first plug cylinder and fixedly connected with the first plug cylinder through a pin; the arc-shaped steel pipe is provided with a second inserting cylinder at the joint, the second inserting cylinder is positioned in the extending direction of the top of the third vertical rod, and the second inserting cylinder is inserted into the top of the third vertical rod.

14. An adjustable safety trampoline according to claim 12, wherein: a sleeve is welded at the bent part of the first vertical rod, a sleeve opening of the sleeve is positioned in the extending direction of the bottom end of the supporting rod, and the bottom end of the supporting rod is inserted into the sleeve; the cylinder opening of the sleeve is a flat opening, and the bottom end of the supporting rod is matched with the cylinder opening of the sleeve in shape and size; the bottom of the sleeve is set to be a cylinder, and the diameter of the cylinder is slightly smaller than that of the cylinder opening.

15. An adjustable safety trampoline according to claim 14, wherein: each support rod is a large arc-shaped rod formed by splicing an upper small arc-shaped steel pipe and a lower small arc-shaped steel pipe; the joint of the two small arc-shaped steel pipes is also provided with a fourth plug barrel and a fourth plug connector which are matched with each other, the fourth plug connector is inserted into the fourth plug barrel and fixedly connected with the fourth plug barrel through a pin, the fourth plug barrel is identical to the barrel opening of the sleeve in structure, and the fourth plug connector is identical to the bottom end of the supporting rod in structure.