Patent Application
20230043158
This application is based upon and claims priority to Chinese Patent Application No. 202121812287.X filed on Aug. 4, 2021, the entire contents of which are incorporated herein by reference.
The present utility model relates to the field of trampolines technology, and in particular, to a trampoline frame connecting structure, a trampoline frame and a trampoline.
The trampoline of the prior art mainly consists of a trampoline ring frame, trampoline legs, a mesh guard pipe, a connecting joint, trampoline cloth, a bed cloth connecting spring and the like, wherein the trampoline ring frame is constituted by several frame traverse pipes assembled and connected, and the trampoline legs, the mesh guard pipe and the connecting joint are usually made of pipe fittings.
At present, the connection joints configured to assemble trampoline frames in the market generally adopt welding processing technology, which has the following shortcomings:
1) The welding process mostly adopts manual or robot welding operation, which is harmful to environment, safety and health, and after welding, and after welding, it is impossible to ensure that the welding position of the parts are firm and not deformed and the structural dimensions are stable;
2) when the welding area of the connection joint is used outdoors, it is very likely to rust, which leads to premature failure of the part structure and scrapping;
3) during the process of batch production of the connecting joints adopting welding technology, because of the complex production process, the manufacturing cycle of the products is prolonged and the production efficiency is low;
4) after the connection joint is used for a long time, the ends of the frame traverse pipes and the joint connecting of the trampoline will be deformed to cause torsional dislocation, which will lead to the trampoline frame becoming loose gradually, which will affect the experience or be unusable;
5) the connecting end of the connecting joint configured to install the mesh guard pipe protrudes from the upper surface of the connecting joint, which is easy to cause accidental scraping when the mesh guard pipe is removed and used, and the use is not safe enough.
The present utility model is mainly intended to overcome the drawbacks of the prior art, and provide a trampoline frame connection structure, trampoline frame and trampoline with more stable connection, high installation and positioning accuracy, high trampoline frame strength, shortened product production cycle, prolonged trampoline service life, simple and convenient installation and safer use.
Further, the installation structure on the connecting joint for connecting the trampoline leg pipe and the mesh guard pipe is a through hole penetrating from up and down and provided on the connecting joint, wherein the trampoline leg pipe is inserted into the through hole from below the connecting joint, the mesh guard pipe is inserted into the through hole from above the connecting joint, the nozzles of the mesh guard pipe and the trampoline leg pipe are sleeved inside and outside, and fastener installation holes penetrating from front to back are respectively provided at corresponding positions of the connecting joint, the trampoline leg pipe and the mesh guard pipe, so as to fixedly connect the trampoline leg pipe, the mesh guard pipe and the connecting joint by matching fasteners.
Further, a clamping step for abutting against the bottom of the connecting joint is formed at a lower end of the nozzle of the trampoline leg pipe.
Further, the connecting joint is an integrally formed structure.
Further, a fastening sleeve is embedded between the nozzles of trampoline leg pipes and mesh guard pipe and the through hole of the connecting joint, and the fastening sleeve is configured to fill gaps between the trampoline leg pipes and mesh guard pipe and the through hole, so that the connecting joint is firmly connected to the trampoline leg pipes and mesh guard pipe, and the fastening sleeve is provided with a fastener avoiding providing at a corresponding position of the fastener installation hole.
Further, the nozzle of the trampoline leg pipe is sleeved outside the nozzle of the mesh guard pipe.
Further, each of the positioning bulges positioning bulges is formed by the inward recessing of the nozzle of the connecting joint, and each of the positioning bulges is circular in shape.
Further, the through hole penetrating from up and down of the connecting joint is a circular-shaped hole, and the nozzles of the trampoline leg pipe and the mesh guard pipe are formed with circular-shaped nozzles matched with the circular-shaped hole.
A trampoline frame, several frame traverse pipes, trampoline leg pipes and mesh guard pipes are connected through several connecting joints, thereby forming an annular trampoline frame, and the frame traverse pipes, trampoline leg pipes, mesh guard pipes and the connecting joints are connected by the above trampoline frame connecting structure.
A trampoline comprising the above trampoline frame and a trampoline cloth, wherein the trampoline cloth is connected to the trampoline frame through several bed cloth connecting springs disposed at intervals along the periphery of the trampoline cloth.
According to the above description of the present utility model, compared with the prior art, the present utility model has the following beneficial effects:
first, the nozzle of the left and right frame traverse pipes and the connecting joints are matched and inserted by square pipe to achieve one-time positioning; at the same time, the positioning grooves of the left and right frame transverse pipes and the positioning bulges of the connecting joints are relatively guided, slid and closely matched, so that the secondary positioning between the left and right frame transverse pipes and the connecting joints can be achieved; the connection between the left and right frame traverse pipes and the connecting joint is more stable, which can improve the positioning accuracy of the installed trampoline; after long-term use of the trampoline, there is no torsion dislocation caused by large deformation of the connecting joint and the frame traverse pipe, and the trampoline frame has higher strength and longer service life.
Second, by providing through holes penetrating from up and down for installing the mesh guard pipe and trampoline leg tube on the connecting joint, and providing fastener installation hole penetrating from front to back at the corresponding positions of the connecting joint, trampoline leg tube and the mesh guard pipe, and the mesh guard pipe and the trampoline leg tube are inserted into the through hole, and the nozzles of the mesh guard pipe and the trampoline leg pipe sleeved inside and outside, and the trampoline leg tube, the mesh guard pipe and the connection joint can be fixedly connected with the fastener. By adopting the connecting structure, the welding process is canceled, the production process can be simplified, the production cycle of products can be shortened, the production efficiency can be improved, the production cost can be reduced, and the installation is simple and convenient, and the appearance is simple and beautiful; at the same time, it can avoid potential safety hazards caused by deformation of welding areas and parts scrapping caused by rusting of welding areas, and prolong the service life of trampoline.
Third, the connection joint integrates the frame traverse pipe connection, the trampoline leg pipe support and fixation, and the mesh guard pipe installation and fixation, which integrates multiple functions into one; the connecting joint is an integrally formed structure, which can improve the manufacturing qualification rate and service life.
Fourth, after the trampoline is assembled, there is no bulge at the connection of the upper side of the mesh guard pipe when the mesh guard pipe is not installed for use, which can avoid accidental scratching by personnel and make it safer to use.
Fifth, the trampoline frame can be more stable by disposing a clamping step at the lower end of the nozzle of the trampoline leg pipe for abutting against the bottom of the connecting joint; at the same time, the fastening sleeves are embedded between the nozzle of trampoline leg pipe and mesh guard pipe and the through holes of the connecting joints, which are configured to make up for the possible gaps between the pipes after assembly due to the uneven inner holes of the pipes, so that the connecting joints can be firmly connected with trampoline leg pipe and mesh guard pipe, and the problem of bending failure at the suspended parts of pipe bodies can be avoided.
In the drawing: 1. Frame traverse pipe, 11. Square nozzle, 111. Positioning groove, 2.
Mesh guard pipe, 3. Trampoline leg pipe, 31. Clamping step, 4. Connecting joint, 41. Positioning bulge, 42. Circular-shaped through hole, 5. Fastener installation hole, 6. Fastener, 61. Bolt, 62. Lock nut, 7. Fastening sleeve, 71. Fastener avoiding providing.
The present utility model will be further described by the specific embodiments below.
Referring to
The connecting joint 4 is a square pipe, and circular-shaped positioning bulges 41 are formed on the left and right inner walls of the connecting joint 4, and the positioning bulges 41 are formed by the inward recessing of the nozzle of the connecting joint 4. Square nozzles 11 matched with inner holes of the connecting joint 4 are formed at the ends of the left and right frame traverse pipes 1, an elongated positioning groove 111 is formed on outer walls of surfaces of the left and right frame traverse pipes 1 corresponding to the positioning bulges 41, the positioning bulges 41 can slide along the positioning groove 111 in the state that the left and right frame traverse pipes 1 are matched and inserted with the connecting joint 4, and an interference fit is formed between the positioning groove 111 and the positioning bulges 41 for secondary positioning between the left and right frame traverse pipes 1 and the connecting joint 4.
The connecting joint 4 is provided with a circular-shaped through hole 42 penetrating from up and down for connecting the trampoline leg pipe 3 and the guard pipe 2, and the nozzles of the trampoline leg pipe 3 and the mesh guard pipe 2 are formed with circular-shaped nozzles matched with the circular-shaped through hole 42. Further, the trampoline leg pipe 3 is inserted into the circular-shaped through hole 42 from below the connecting joint 4, and a clamping step 31 for abutting against the bottom of the connecting joint 4 is formed at the lower end of the nozzle of the trampoline leg pipe 3. The mesh guard pipe 2 is inserted into the circular-shaped through hole 42 from above the connecting joint 4, and the nozzles of the mesh guard pipe 2 and the trampoline leg pipe 3 sleeved inside and outside, wherein the nozzle of the trampoline leg pipe 3 is sleeved outside the nozzle of the mesh guard pipe 2. Fastener installation holes 5 penetrating from front to back are respectively provided at the corresponding positions of the connecting joint 4, the trampoline leg pipe 3 and the mesh guard pipe 2, which are used for fixedly connecting the trampoline leg pipe 3, the mesh guard pipe 2 and the connecting joint 4 with fasteners 6. A fastening sleeve 7 is embedded between the nozzles of trampoline leg pipes 3 and mesh guard pipe 2 and the circular-shaped through hole 42 of the connecting joint 4, and the fastening sleeve 7 is configured to fill gaps between the trampoline leg pipes 3 and mesh guard pipe 2 and the circular-shaped through hole 42, so that the connecting joint 4 is firmly connected to the trampoline leg pipes 3 and mesh guard pipe 2, and the fastening sleeve 7 is provided with a fastener avoiding providing 71 at a corresponding position of the fastener installation hole 5. The fastening sleeve 7 adopts plastic material. The nozzle of trampoline leg pipe 3 and mesh guard pipe 2 are made by adopting pipe shrinking process. The connecting joint 4 is an integrally formed structure, which is cut by laser and manufactured by one-step molding process.
A trampoline frame, several frame traverse pipes 1, trampoline leg pipes 3 and mesh guard pipes 2 of the present utility model are connected through several connecting joints 4, thereby forming an annular trampoline frame, and the frame traverse pipes 1, trampoline leg pipes 3, mesh guard pipes 2 and the connecting joints 4 are connected by the above trampoline frame connecting structure.
A trampoline of the present utility model comprising the above, wherein the trampoline cloth is connected to the trampoline frame through several bed cloth connecting springs disposed at intervals along the periphery of the trampoline cloth.
Referring to
A difference between this embodiment and embodiment 1 is that the fastening sleeve 7 in embodiment 1 is not disposed between the nozzles of the trampoline leg pipe 3 and the mesh guard pipe 2 and the circular-shaped through hole 42 of the connecting joint 4, and the inner wall of the circular-shaped through hole 42 is closely matched with the outer wall of the nozzle of the trampoline leg pipe 3.
The above are only two specific embodiments of the present utility model, but the design concept of the present utility model is not limited to this, and any immaterial modification of the present utility model by using this concept should be an act violating the protection scope of the present utility model.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202121812287.X | Aug 2021 | CN | national |
