Patent Application
20230054604
The present invention relates to the field of sports equipment, in particular to a rope winding device, a rope tensioning device and a ball net frame.
As people pay more attention to physical exercise, ball sports such as badminton, volleyball, and tennis require not only rackets but also net frames for auxiliary use. In the related art, the base and the net are generally fixedly installed on the ground. In order to increase the stability of the net frame, weights are generally added to the basis of the pole of the frame, which increases the volume of the net frame and make it not easy to move and carry the net frame. Furthermore, the net of the fixed net frame has to withstand wind and the sun daily, which makes the net age and break easily, thereby greatly reducing the service life of the net.
In order to facilitate portability, some foldable net frames appear on the market. However, the folded net frame still occupies a large space and the net supported by this kind of frame does not have good flexibility. Furthermore, the degree of tension of the net is difficult to reach the required standard when the net is pulled on both sides.
In order to solve the technical problems described above, the present invention provides an improved rope winding device, a rope tensioning device and a ball net frame, which is convenient for carrying and storing, easy for using and capable of stretching the net with enough tension.
In one aspect, the present invention provides a rope winding device which includes a rope winding seat, a rope reel shaft, a ratchet and a handle, wherein opposite two ends of the rope reel shaft pass through the rope winding seat and are rotatably connected with the rope winding seat, one end of the rope reel shaft is provided with a gear, the ratchet is rotatably mounted on the rope winding seat and meshed with the gear, and the other end of the rope reel shaft is connected with the handle.
Preferably, a rope hole penetrates through the rope reel shaft for extension of a rope.
Preferably, a connecting shaft with a non-circle cross section is coaxially arranged at the other end of the rope reel shaft, the handle is provided with a connecting hole with a non-circle cross section into which the connecting shaft can be inserted to thereby detachably connect the handle to the rope reel shaft.
Preferably, the cross sections of the connecting shaft and the connecting hole are square.
In another aspect, the present invention provides a rope tensioning device which comprises the rope winding device described above.
Preferably, the rope tensioning device further includes two supporting rods and a tension rope, each supporting rod is provided with a hoist ring at a top end thereof, the rope winding device is attached to one of the supporting rods, one end of the tension rope passes through the hoist ring at the top of one of the supporting rods and is connected to the rope winding device, the other end of tension rope is connected to the hoisting ring at the top end of the other of the supporting rods.
Preferably, the supporting rod comprises an upper rod and a lower rod detachably connected together.
Preferably, the rope tensioning device further comprises a fixed rope, a stopper and a fixed pile, one end of the fixed rope is fixed to ground by the fixed pile, the other end of the fixed rope passes through one of the hoist rings to be fastened to the stopper.
Preferably, the stopper defines two through holes, said one end of the fixed rope passes through one of the through holes before being fixed to the fixed rope, and said the other end of the fixed rope passes through the other of the through holes and is tied with a knot to thereby be fastened to the stopper.
In another aspect, the present invention provides a ball net frame which comprises a net and the rope tensioning device described above, wherein the rope tensioning device is configured to stretch and fix the net.
Preferably, the net is provided with an upper net belt and a lower net belt respectively at upper and lower sides thereof, and the lower net belt at the lower side of the net is provided with several leaking holes.
Preferably, the tension rope passes through the upper net belt to tighten the net.
The embodiments of the present invention have the following benefits:
The rope winding device has a simple structure. The handle and the rope reel shaft can be detachably connected together, which is convenient for carrying and storing. In addition, by connecting the tension rope with the rope reel shaft, the tension rope is retracted and pulled by the handle to drive the rope reel shaft to rotate, thereby exerting a tensioning effect on the tension rope. When a certain degree of tension is reached, the meshing of the ratchet and the gear can be used to limit the position of the rope reel shaft.
When a rope tensioning device uses the rope winding device, the handle rotates once to drive the rope reel shaft to rotate once, which can realize the rapid tensioning of the tension rope, thereby greatly improving the operation efficiency.
When a ball net frame adopts the rope tensioning device, the rope tensioning device can not only tighten the net but also strengthen the stability of the all net frame to prevent the ball net frame from toppling when the ball is struck vigorously.
Reference numbers: 10—rope winding device; 11—rope winding seat; 12—rope reel shaft; 13—ratchet; 14—handle; 15—gear; 16—connecting shaft; 20—supporting rod; 21—ring; 22—upper rod; 23—lower rod; 30—tension rope; 40—fixed rope; 50—stopper; 51—through hole; 60—fixed pile; 70—ball net; 71—sleeve; 72—net belt; 80—buckle
The technical solution of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are parts of the present invention, not all of the embodiments. It should be noted that several variations and improvements can be made by those of ordinary skills in the art without departing from the concept of the present invention, and shall be construed as falling within the protection scope of the present invention.
Referring to
The rope winding device 10 of the present invention has a simple structure. The handle 14 and the rope reel shaft 12 can be detachably connected, which is convenient for carrying and storing. In addition, by connecting the tension rope 30 with the rope reel shaft 12, when the rope reel shaft 12 is driven to rotate through the handle 14, the tension rope 30 wound on the rope reel shaft 12 can be stretched to achieve a tension effect. When a certain degree of tension is reached, the ratchet 13 is driven to mesh with the gear 15 to thereby lock/stop the rope reel shaft 12. When the tension rope 30 needs to be retracted, the ratchet wheel 13 is disengaged from the gear 15 to thereby release the rope reel shaft 12. Without the limit of the ratchet 13, the gear 15 and the rope reel shaft 12 can rotate in the opposite direction, and thus the tension rope 30 is “retracted”.
In order to facilitate the fixation of the tension rope 30 and the rope winding device 10, a rope hole 17 penetrates through the middle of the rope reel shaft 12, and the tension rope 30 passes through the rope hole 17 and is tied with a knot to thereby fasten the tension rope 30 to the rope reel shaft 12.
In order to realize easy storage, the handle 14 is detachably connected with the rope reel shaft 12, a connecting shaft 16 with a non-circle cross section is coaxially arranged at the other end of the rope reel shaft 12. The handle 14 is provided with a connecting hole (not shown) with a non-circle cross section into which the connecting shaft 16 can be inserted. The connecting shaft 16 is inserted into the connecting hole so that the handle 14 is detachably connected to the rope reel shaft 12. In the preferred embodiment, the cross sections of the connecting shaft 16 and the connecting hole are square. The design of the square connecting shaft 16 realizes the detachable connection of the handle 14 and the rope reel shaft 12 on the one hand, and on the other hand prevents relative rotation between the handle 14 and the rope reel shaft 12.
Understandably, the handle 14 and the rope reel shaft 12 can also be connected by welding. Specifically, the square connecting shaft 16 is inserted into the connecting hole of the handle 14 and then welded. Thus, the handle 14 is fixedly connected with the rope reel shaft 12 and is not easy to be damaged during rotation.
Referring to
The rope tensioning device of the present invention adopts the rope winding device 10. The handle 14 rotates one turn to drive the rope reel shaft 12 to rotate one turn, which can realize the rapid tensioning of the tension rope 30, thereby greatly improving the operation efficiency.
In the embodiment, only one rope winding device 10 is used. It is also possible to provide a rope winding device 10 on each of the two supporting rods 20, so that both ends of the tension rope 30 pass through the hoisting rings 21 on the top ends of the upper rods 22 respectively and are connected to the corresponding rope winding devices 10 at the middle of the lower rods 23.
In order to realize the tightening and fixing of the rope tensioning device, the rope tensioning device further includes a fixed rope 40, a stopper 50 and a fixed pile 60. The stopper 50 is provided with two through holes 5. One end of the fixed rope 40 passes through one of the through holes 51 and is connected to the fixed pile 60 which is fixed on the ground. The other end of the fixed rope 40 passes through the hoisting ring 21, and then passes through the other through hole 51 to be tied with a knot and fastened to the stopper 50.
Further, the rope tensioning device further includes a buckle 80 which is connected to the hoist ring 21. The other end of the fixed rope 40 passes through the buckle 80, and then passes through the other through hole 51 to be tied with a knot and fastened to the stopper 50.
In this embodiment, two fixed ropes 40 are provided and thus two sets of stoppers 50 and fixed piles 60 are provided. By two fixed ropes 40 being fixed to the ground, a balance of force is achieved between the two fixed ropes 40 and the associated tension rope 30 so that on the one hand, the supporting rod 20 is arranged vertically and the bottom end of the supporting rod 20 does not need to be fixed to the ground; on the other hand, the tension rope 30 is kept tensioned.
Referring to
The ball net frame of the present invention can not only tighten/stretch the ball net 70 but also strengthen the stability of the ball net frame to prevent the ball net frame from falling down when the ball is struck vigorously.
The net frame is often exposed to outside. In order to prevent water from entering the net 70, the upper and lower sides of the net 70 are respectively provided with net belts 72 and the lower net belt 72 at the lower side is provided with several leaking holes 722. The tension rope 30 pass through the upper net belt 72 to tighten/stretch the net 70.
The embodiments above only provide specific and detailed descriptions of several implementations of the present invention, and therefore should not be construed to limit the patent scope of the present invention. It should be noted that several variations and improvements can be made by those of ordinary skills in the art without departing from the concept of the present invention, and shall be construed as falling within the protection scope of the present invention. Therefore, the patent protection scope of the present invention shall be subjected to the accompanying claims.
